Ethane, 1,2-dimethoxy-
- Formula: C4H10O2
- Molecular weight: 90.1210
- IUPAC Standard InChIKey: XTHFKEDIFFGKHM-UHFFFAOYSA-N
- CAS Registry Number: 110-71-4
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: α,β-Dimethoxyethane; Dimethoxyethane; Dimethyl cellosolve; Ethylene dimethyl ether; Ethylene glycol dimethyl ether; Glycol dimethyl ether; Glyme; Monoethylene glycol dimethyl ether; Monoglyme; 1,2-Dimethoxyethane; 1,2-Ethanediol dimethyl ether; 2,5-Dioxahexane; CH3OCH2CH2OCH3; Egdme; UN 2252; Ansul ether 121; DME; DME (glycol ether); Hisolve MMM; NSC 60542
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Gas phase thermochemistry data
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -342.8 ± 0.7 | kJ/mol | Ccr | Steele, Chirico, et al., 1996 | |
ΔfH°gas | -390. ± 2. | kJ/mol | Eqk | Wiberg, Morgan, et al., 1994 | |
ΔfH°gas | -340.5 ± 0.63 | kJ/mol | Ccr | Loucks and Laidler, 1967 |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Ion clustering data, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
(C4H11O2+ • 2 • 2) + = (C4H11O2+ • 3 • 2)
By formula: (C4H11O2+ • 2H2O • 2C4H10O2) + H2O = (C4H11O2+ • 3H2O • 2C4H10O2)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 38. | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 105. | J/mol*K | N/A | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
15. | 225. | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
(C4H11O2+ • 3 • ) + = (C4H11O2+ • 4 • )
By formula: (C4H11O2+ • 3H2O • C4H10O2) + H2O = (C4H11O2+ • 4H2O • C4H10O2)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 40. | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 105. | J/mol*K | N/A | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
16. | 225. | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
(C4H11O2+ • 2) + = (C4H11O2+ • 3)
By formula: (C4H11O2+ • 2C4H10O2) + C4H10O2 = (C4H11O2+ • 3C4H10O2)
Bond type: Hydrogen bonds between protonated and neutral organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 42.7 | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 105. | J/mol*K | N/A | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
21. | 208. | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
By formula: Na+ + C4H10O2 = (Na+ • C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 158. ± 4.2 | kJ/mol | CIDT | Armentrout and Rodgers, 2000 | glyme; RCD |
ΔrH° | 241. ± 18. | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
ΔrH° | 161. ± 4.2 | kJ/mol | CIDT | More, Ray, et al., 1997 | RCD |
ΔrH° | 197. | kJ/mol | HPMS | Castleman, Peterson, et al., 1983 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 145. | J/mol*K | HPMS | Castleman, Peterson, et al., 1983 | gas phase; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
133. | 298. | IMRE | McMahon and Ohanessian, 2000 | Anchor alanine=39.89; RCD |
By formula: K+ + C4H10O2 = (K+ • C4H10O2)
Bond type: Polydentate bonding in non-hydrogen-bonded positive ions
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 119. ± 4.2 | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
ΔrH° | 129. | kJ/mol | HPMS | Davidson and Kebarle, 1976 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 112. | J/mol*K | HPMS | Davidson and Kebarle, 1976 | gas phase; M |
By formula: (Na+ • C4H10O2) + C4H10O2 = (Na+ • 2C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 116. ± 7.9 | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
ΔrH° | 114. ± 8.4 | kJ/mol | CIDT | More, Ray, et al., 1997 | RCD |
ΔrH° | 147. | kJ/mol | HPMS | Castleman, Peterson, et al., 1983 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 169. | J/mol*K | HPMS | Castleman, Peterson, et al., 1983 | gas phase; M |
(C4H11O2+ • • 2) + = (C4H11O2+ • 2 • 2)
By formula: (C4H11O2+ • C4H10O2 • 2H2O) + C4H10O2 = (C4H11O2+ • 2C4H10O2 • 2H2O)
Bond type: Hydrogen bonds between protonated and neutral organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 82.8 | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 123. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; M |
(C4H11O2+ • 2 • ) + = (C4H11O2+ • 3 • )
By formula: (C4H11O2+ • 2H2O • C4H10O2) + H2O = (C4H11O2+ • 3H2O • C4H10O2)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 42.7 | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 104. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; M |
(C4H11O2+ • • 2) + = (C4H11O2+ • 2 • 2)
By formula: (C4H11O2+ • H2O • 2C4H10O2) + H2O = (C4H11O2+ • 2H2O • 2C4H10O2)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 41. | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 102. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; M |
(C4H11O2+ • • ) + = (C4H11O2+ • 2 • )
By formula: (C4H11O2+ • H2O • C4H10O2) + H2O = (C4H11O2+ • 2H2O • C4H10O2)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 43.5 | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 104. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; M |
By formula: C5H6N+ + C4H10O2 = (C5H6N+ • C4H10O2)
Bond type: Hydrogen bonds with polydentate bonding in positive ions
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 106. | kJ/mol | PHPMS | Meot-Ner (Mautner), 1983 | gas phase; glyme; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 131. | J/mol*K | PHPMS | Meot-Ner (Mautner), 1983 | gas phase; glyme; M |
By formula: (H4N+ • C4H10O2) + H3N = (H4N+ • H3N • C4H10O2)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 58.6 | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 81.2 | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
(C4H11O2+ • ) + = (C4H11O2+ • • )
By formula: (C4H11O2+ • C4H10O2) + H2O = (C4H11O2+ • H2O • C4H10O2)
Bond type: Hydrogen bond (positive ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 57.3 | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 115. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; M |
By formula: C4H11O2+ + C4H10O2 = (C4H11O2+ • C4H10O2)
Bond type: Hydrogen bonds between protonated and neutral organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 115. | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 129. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; M |
By formula: H4N+ + C4H10O2 = (H4N+ • C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 160. ± 10. | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; possible ether decomposition; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 150. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; possible ether decomposition; M |
By formula: C3H10N+ + C4H10O2 = (C3H10N+ • C4H10O2)
Bond type: Hydrogen bonds with polydentate bonding in positive ions
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 112. | kJ/mol | PHPMS | Meot-Ner (Mautner), 1983 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 146. | J/mol*K | PHPMS | Meot-Ner (Mautner), 1983 | gas phase; M |
By formula: C6H14N+ + C4H10O2 = (C6H14N+ • C4H10O2)
Bond type: Hydrogen bonds with polydentate bonding in positive ions
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 123. | kJ/mol | PHPMS | Meot-Ner (Mautner), 1983 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 149. | J/mol*K | PHPMS | Meot-Ner (Mautner), 1983 | gas phase; M |
By formula: CH6N+ + C4H10O2 = (CH6N+ • C4H10O2)
Bond type: Hydrogen bonds with polydentate bonding in positive ions
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 126. | kJ/mol | PHPMS | Meot-Ner (Mautner), 1983 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 126. | J/mol*K | PHPMS | Meot-Ner (Mautner), 1983 | gas phase; M |
By formula: (H4N+ • 2C4H10O2) + C4H10O2 = (H4N+ • 3C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 60. ± 10. | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 114. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
By formula: (H4N+ • C4H10O2) + C4H10O2 = (H4N+ • 2C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 97.1 | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 140. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
By formula: (Na+ • 2C4H10O2) + C4H10O2 = (Na+ • 3C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 97.1 | kJ/mol | HPMS | Castleman, Peterson, et al., 1983 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 177. | J/mol*K | HPMS | Castleman, Peterson, et al., 1983 | gas phase; M |
By formula: C4H10O2 + H2O = 2CH4O + C2H4O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 35.9 ± 0.8 | kJ/mol | Eqk | Wiberg, Morgan, et al., 1994 | liquid phase; ALS |
By formula: 2CH4O + C2H4O = C4H10O2 + H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -62. ± 1. | kJ/mol | Cm | Wiberg, Morgan, et al., 1994 | gas phase; ALS |
By formula: (Li+ • C4H10O2) + C4H10O2 = (Li+ • 2C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 139. ± 12. | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
By formula: (Cs+ • C4H10O2) + C4H10O2 = (Cs+ • 2C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 54.0 ± 7.1 | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
By formula: (Rb+ • C4H10O2) + C4H10O2 = (Rb+ • 2C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 49. ± 12. | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
By formula: (K+ • C4H10O2) + C4H10O2 = (K+ • 2C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 89. ± 12. | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
By formula: (Cu+ • C4H10O2) + C4H10O2 = (Cu+ • 2C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 180. ± 5.9 | kJ/mol | CIDT | Koizumi, 2001 | RCD |
By formula: Li+ + C4H10O2 = (Li+ • C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 158. ± 4.2 | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
By formula: Cs+ + C4H10O2 = (Cs+ • C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 56.9 ± 5.0 | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
By formula: Rb+ + C4H10O2 = (Rb+ • C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 94.1 ± 9.2 | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
By formula: Cu+ + C4H10O2 = (Cu+ • C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 264. ± 7.9 | kJ/mol | CIDT | Koizumi, 2001 | RCD |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Ion clustering data, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias
Data compiled as indicated in comments:
MM - Michael M. Meot-Ner (Mautner)
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 9.3 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 858.0 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 820.2 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Proton affinity at 298K
Proton affinity (kJ/mol) | Reference | Comment |
---|---|---|
846. ± 2. | Morlender-Vais and Holmes, 2001 | Plots of lnR (dissociation product ratio RH+/MH+) vs. PA(B) in metastable ion and CID experiments.; MM |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.3 | PE | Baker, Armen, et al., 1983 | LBLHLM |
9.2 | PE | Kimura, Katsumata, et al., 1981 | LLK |
9.9 | PE | Baker, Armen, et al., 1983 | Vertical value; LBLHLM |
9.78 | PE | Kimura, Katsumata, et al., 1981 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C2H5O+ | 10.36 ± 0.05 | CH3OCH2 | EI | Holmes and Lossing, 1984 | LBLHLM |
C2H5O+ | 10.27 | CH3OCH2 | EI | Lossing, 1977 | LLK |
Ion clustering data
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
By formula: CH6N+ + C4H10O2 = (CH6N+ • C4H10O2)
Bond type: Hydrogen bonds with polydentate bonding in positive ions
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 126. | kJ/mol | PHPMS | Meot-Ner (Mautner), 1983 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 126. | J/mol*K | PHPMS | Meot-Ner (Mautner), 1983 | gas phase; M |
By formula: C3H10N+ + C4H10O2 = (C3H10N+ • C4H10O2)
Bond type: Hydrogen bonds with polydentate bonding in positive ions
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 112. | kJ/mol | PHPMS | Meot-Ner (Mautner), 1983 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 146. | J/mol*K | PHPMS | Meot-Ner (Mautner), 1983 | gas phase; M |
By formula: C4H11O2+ + C4H10O2 = (C4H11O2+ • C4H10O2)
Bond type: Hydrogen bonds between protonated and neutral organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 115. | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 129. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; M |
(C4H11O2+ • 2) + = (C4H11O2+ • 3)
By formula: (C4H11O2+ • 2C4H10O2) + C4H10O2 = (C4H11O2+ • 3C4H10O2)
Bond type: Hydrogen bonds between protonated and neutral organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 42.7 | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 105. | J/mol*K | N/A | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
21. | 208. | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; Entropy change calculated or estimated; M |
(C4H11O2+ • • 2) + = (C4H11O2+ • 2 • 2)
By formula: (C4H11O2+ • C4H10O2 • 2H2O) + C4H10O2 = (C4H11O2+ • 2C4H10O2 • 2H2O)
Bond type: Hydrogen bonds between protonated and neutral organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 82.8 | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 123. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; M |
By formula: C5H6N+ + C4H10O2 = (C5H6N+ • C4H10O2)
Bond type: Hydrogen bonds with polydentate bonding in positive ions
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 106. | kJ/mol | PHPMS | Meot-Ner (Mautner), 1983 | gas phase; glyme; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 131. | J/mol*K | PHPMS | Meot-Ner (Mautner), 1983 | gas phase; glyme; M |
By formula: C6H14N+ + C4H10O2 = (C6H14N+ • C4H10O2)
Bond type: Hydrogen bonds with polydentate bonding in positive ions
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 123. | kJ/mol | PHPMS | Meot-Ner (Mautner), 1983 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 149. | J/mol*K | PHPMS | Meot-Ner (Mautner), 1983 | gas phase; M |
By formula: Cs+ + C4H10O2 = (Cs+ • C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 56.9 ± 5.0 | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
By formula: (Cs+ • C4H10O2) + C4H10O2 = (Cs+ • 2C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 54.0 ± 7.1 | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
By formula: Cu+ + C4H10O2 = (Cu+ • C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 264. ± 7.9 | kJ/mol | CIDT | Koizumi, 2001 | RCD |
By formula: (Cu+ • C4H10O2) + C4H10O2 = (Cu+ • 2C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 180. ± 5.9 | kJ/mol | CIDT | Koizumi, 2001 | RCD |
By formula: H4N+ + C4H10O2 = (H4N+ • C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 160. ± 10. | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; possible ether decomposition; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 150. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; possible ether decomposition; M |
By formula: (H4N+ • C4H10O2) + C4H10O2 = (H4N+ • 2C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 97.1 | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 140. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
By formula: (H4N+ • 2C4H10O2) + C4H10O2 = (H4N+ • 3C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 60. ± 10. | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 114. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
By formula: K+ + C4H10O2 = (K+ • C4H10O2)
Bond type: Polydentate bonding in non-hydrogen-bonded positive ions
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 119. ± 4.2 | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
ΔrH° | 129. | kJ/mol | HPMS | Davidson and Kebarle, 1976 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 112. | J/mol*K | HPMS | Davidson and Kebarle, 1976 | gas phase; M |
By formula: (K+ • C4H10O2) + C4H10O2 = (K+ • 2C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 89. ± 12. | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
By formula: Li+ + C4H10O2 = (Li+ • C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 158. ± 4.2 | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
By formula: (Li+ • C4H10O2) + C4H10O2 = (Li+ • 2C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 139. ± 12. | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
By formula: Na+ + C4H10O2 = (Na+ • C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 158. ± 4.2 | kJ/mol | CIDT | Armentrout and Rodgers, 2000 | glyme; RCD |
ΔrH° | 241. ± 18. | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
ΔrH° | 161. ± 4.2 | kJ/mol | CIDT | More, Ray, et al., 1997 | RCD |
ΔrH° | 197. | kJ/mol | HPMS | Castleman, Peterson, et al., 1983 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 145. | J/mol*K | HPMS | Castleman, Peterson, et al., 1983 | gas phase; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
133. | 298. | IMRE | McMahon and Ohanessian, 2000 | Anchor alanine=39.89; RCD |
By formula: (Na+ • C4H10O2) + C4H10O2 = (Na+ • 2C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 116. ± 7.9 | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
ΔrH° | 114. ± 8.4 | kJ/mol | CIDT | More, Ray, et al., 1997 | RCD |
ΔrH° | 147. | kJ/mol | HPMS | Castleman, Peterson, et al., 1983 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 169. | J/mol*K | HPMS | Castleman, Peterson, et al., 1983 | gas phase; M |
By formula: (Na+ • 2C4H10O2) + C4H10O2 = (Na+ • 3C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 97.1 | kJ/mol | HPMS | Castleman, Peterson, et al., 1983 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 177. | J/mol*K | HPMS | Castleman, Peterson, et al., 1983 | gas phase; M |
By formula: Rb+ + C4H10O2 = (Rb+ • C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 94.1 ± 9.2 | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
By formula: (Rb+ • C4H10O2) + C4H10O2 = (Rb+ • 2C4H10O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 49. ± 12. | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
Gas Chromatography
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | SE-30 | 120. | 646. | García-Raso, Martínez-Castro, et al., 1987 | N2, Supelcoport; Column length: 3. m |
Packed | SE-30 | 150. | 635. | Tiess, 1984 | Ar, Gas Chrom Q (80-100 mesh); Column length: 3. m |
Packed | Apiezon L | 120. | 607. | Bogoslovsky, Anvaer, et al., 1978 | Celite 545 |
Packed | Apiezon L | 160. | 608. | Bogoslovsky, Anvaer, et al., 1978 | Celite 545 |
Kovats' RI, polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | Carbowax 20M | 120. | 918. | García-Raso, Martínez-Castro, et al., 1987 | N2, Supelcoport; Column length: 25. m; Column diameter: 0.22 mm |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Ultra-ALLOY-5 | 645. | Tsuge, Ohtan, et al., 2011 | 30. m/0.25 mm/0.25 μm, 40. C @ 2. min, 20. K/min, 320. C @ 13. min |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Squalane | 646. | Chen, 2008 | Program: not specified |
Capillary | Polydimethyl siloxanes | 641. | Zenkevich, 1997 | Program: not specified |
Capillary | Methyl Silicone | 641. | Zenkevich, 1995 | Program: not specified |
Packed | Apiezon L | 609.5 | Keiko, Prokop'ev, et al., 1972 | Program: not specified |
Packed | Squalane | 614.5 | Keiko, Prokop'ev, et al., 1972 | Program: not specified |
Normal alkane RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-Wax | 935. | Shimadzu, 2012 | 30. m/0.32 mm/0.50 μm, Helium, 4. K/min; Tstart: 40. C; Tend: 260. C |
Capillary | DB-Wax | 935. | Shimadzu Corporation, 2003 | 30. m/0.32 mm/0.5 μm, He, 4. K/min; Tstart: 40. C; Tend: 260. C |
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Steele, Chirico, et al., 1996
Steele, W.V.; Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A.; Smith, N.K.,
Thermodynamic properties and ideal-gas enthalpies of formation for butyl vinyl ether, 1,2-dimethoxyethane, methyl glycolate, bicyclo[2.2.1]hept-2-ene, 5-vinylbicyclo[2.2.1]hept-2-ene, trans-azobenzene, butyl acrylate, di-tert-butyl ether, and hexane-1,6-diol,
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Wiberg, Morgan, et al., 1994
Wiberg, K.B.; Morgan, K.M.; Maltz, H.,
Thermochemistry of carbonyl reactions. 6. A study of hydration equilibria,
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Loucks and Laidler, 1967
Loucks, L.F.; Laidler, K.J.,
Thermochemistry of the methoxymethyl radical,
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Meot-Ner (Mautner), Sieck, et al., 1994
Meot-Ner (Mautner), M.; Sieck, L.W.; Liebman, J.F.; Scheiner, S.; Duan, X.,
The Ionic Hydrogen Bond. 5. Polydentate and Solvent-Bridged Structures. Complexing of the Proton and the Hydronium Ions by Polyethers,
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An Absolute Sodium Cation Affinity Scale: Threshold Collision-Induced Dissociation Experiments and ab Initio Theory,
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Noncovalent Metal-Ligand Bond Energies as Studied by Threshold Collision-Induced Dissociation,
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More, M.B.; Ray, D.; Armentrout, P.B.,
Cation-ether complexes in the gas phase: Bond dissociation energies of Na+(dimethyl ether)(x), x=1-4; Na+(1,2-dimethoxyethane)(x), x=1 and 2; and Na+(12-crown-4),
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Castleman, Peterson, et al., 1983
Castleman, A.W.; Peterson, K.I.; Upschulte, B.L.; Schelling, F.J.,
Energetics and Structure of Na+ Cluster Ions,
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McMahon and Ohanessian, 2000
McMahon, T.B.; Ohanessian, G.,
An Experimental and Ab Initio Study of the Nature of the Binding in Gas-Phase Complexes of Sodium Ions,
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Davidson and Kebarle, 1976
Davidson, W.R.; Kebarle, P.,
Binding Energies and Stabilities of Potassium Ion Complexes with Ethylene Diamine and Dimethoxyethane (Glyme) from Measurements of the Complexing Equilibria in the Gas Phase,
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Meot-Ner (Mautner), M.,
The Ionic Hydrogen Bond. 3. Multiple and -CH+...O- Bonds. Complexes of Ammonium Ions with Polyethers and Crown Ethers,
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Meot-Ner (Mautner), Sieck, et al., 1996
Meot-Ner (Mautner), M.; Sieck, L.W.; Liebman, J.F.; Scheiner, S.,
Complexing of the Ammonium Ion by Polyethers. Comparative Complexing Thermochemistry of Ammonium, Hydronium, and Alkali Cations,
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Koizumi, H.,
Collision-Induced Dissociation and Theoretical Studies of Cu+-Dimethoxyethane Complexes,
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Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
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Proton affinities of two weakly bidentate molecules: 1,2-Dimethoxyethane and methoxyacetone,
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Baker, A.D.; Armen, G.H.; Funaro, S.,
Oral levels of crown ethers and related macrocycles studies by ultraviolet photoelectron spectroscopy: Relationship to complexation studies,
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Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules
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Lossing, 1977
Lossing, F.P.,
Heats of formation of some isomeric [CnH2n+1]+ ions. Substitutional effects on ion stability,
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García-Raso, A.; Martínez-Castro, I.; Páez, M.I.; Sanz, J.; García-Raso, J.; Saura-Calixto, F.,
Gas Chromatographic Behaviour of Carbohydrate Trimethylsilyl Ethers. I. Aldopentoses,
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Tiess, 1984
Tiess, D.,
Gaschromatographische Retentionsindices von 125 leicht- bis mittelflüchtigen organischen Substanzen toxikologisch-analytischer Relevanz auf SE-30,
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Bogoslovsky, Anvaer, et al., 1978
Bogoslovsky, Yu.N.; Anvaer, B.I.; Vigdergauz, M.S.,
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Chen, 2008
Chen, H.-F.,
Quantitative prediction of gas chromatography retention indices with support vector machines, radial basis neutral networks and multiple linear regression,
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Influence of the Variations of Dynamics Molecular Parameterts on the Additivity of Chromatigraphic Retention Indices of Products of Organic Reactions Relative to Initial Reagents,
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Zenkevich, 1995
Zenkevich, I.G.,
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Keiko, Prokop'ev, et al., 1972
Keiko, V.V.; Prokop'ev, B.V.; Kuz'menko, L.P.; Kalinina, N.A.; Modonov, V.B.,
The use of an additive scheme of calculation of the indices of retention in gas-liquid chromatography communication. 3. Some regularities in the manifestation of the inductive effect,
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Shimadzu, 2012
Shimadzu, Pharmaceutical Related,
Analysis of pharmaceutical residual solvent (observation of separation) (1) - GC, 2012, retrieved from www.shimadzu.ru/applications/Applicationspdf/GC/Pharma/Pharmaceutical residual solvents GC.pdf. [all data]
Shimadzu Corporation, 2003
Shimadzu Corporation,
Analysis of pharmaceutical residual solvent (observation of separation), 2003, retrieved from http://www.shimadzu.com.br/analitica/aplicacoes/book/pharm69.pdf. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Gas Chromatography, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy T Temperature ΔfH°gas Enthalpy of formation of gas at standard conditions ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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