boron
- Formula: B
- Molecular weight: 10.811
- IUPAC Standard InChIKey: ZOXJGFHDIHLPTG-UHFFFAOYSA-N
- CAS Registry Number: 7440-42-8
- Chemical structure:
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- Other data available:
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Reaction thermochemistry data
Go To: Top, Gas phase ion energetics 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 as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess
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
By formula: (B+ • 10B) + B = (B+ • 11B)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 127. ± 12. | kcal/mol | CID | Hanley, Whitten, et al., 1988 | gas phase; ΔrH<; M |
By formula: (B+ • 11B) + B = (B+ • 12B)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 184. ± 35. | kcal/mol | CID | Hanley, Whitten, et al., 1988 | gas phase; ΔrH<; M |
By formula: (B+ • 9B) + B = (B+ • 10B)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 129. ± 18. | kcal/mol | CID | Hanley, Whitten, et al., 1988 | gas phase; ΔrH<; M |
By formula: (B+ • 2B) + B = (B+ • 3B)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 185. ± 35. | kcal/mol | CID | Hanley, Whitten, et al., 1988 | gas phase; ΔrH<; M |
By formula: (B+ • 3B) + B = (B+ • 4B)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 164. ± 14. | kcal/mol | CID | Hanley, Whitten, et al., 1988 | gas phase; ΔrH<; M |
By formula: (B+ • 5B) + B = (B+ • 6B)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 127. ± 16. | kcal/mol | CID | Hanley, Whitten, et al., 1988 | gas phase; ΔrH<; M |
By formula: (B+ • 8B) + B = (B+ • 9B)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 125. ± 12. | kcal/mol | CID | Hanley, Whitten, et al., 1988 | gas phase; ΔrH<; M |
By formula: (B+ • 4B) + B = (B+ • 5B)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 62. ± 14. | kcal/mol | CID | Hanley, Whitten, et al., 1988 | gas phase; ΔrH<; M |
By formula: (B+ • 6B) + B = (B+ • 7B)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 97. ± 12. | kcal/mol | CID | Hanley, Whitten, et al., 1988 | gas phase; ΔrH<; M |
By formula: (B+ • 7B) + B = (B+ • 8B)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 92. ± 12. | kcal/mol | CID | Hanley, Whitten, et al., 1988 | gas phase; ΔrH<; M |
By formula: (B+ • B) + B = (B+ • 2B)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 99. ± 16. | kcal/mol | CID | Hanley, Whitten, et al., 1988 | gas phase; ΔrH<; M |
(CAS Reg. No. 12513-02-9 • 4294967295) + = CAS Reg. No. 12513-02-9
By formula: (CAS Reg. No. 12513-02-9 • 4294967295B) + B = CAS Reg. No. 12513-02-9
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 216.4 ± 2.9 | kcal/mol | N/A | Wenthold, Kim, et al., 1997 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 18. ± 14. | kcal/mol | CID | Hanley, Whitten, et al., 1988 | gas phase; ΔrH<; M |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry data, 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:
L - Sharon G. Lias
Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess
View reactions leading to B+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 8.29803 ± 0.00002 | eV | N/A | N/A | L |
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
0.279743 ± 0.000044 | LPD | Scheer, Bilodeau, et al., 1998 | tunable IR laser; B |
0.278 ± 0.010 | LPES | Feigerle, Corderman, et al., 1981 | B |
<0.500002 | PD | Feldmann, Rackwitz, et al., 1977 | B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.29803 | EVAL | Lide, 1992 | LL |
8.298 | S | Kelly, 1987 | LBLHLM |
8.0 | EI | Murad and Hildenbrand, 1975 | LLK |
8.29802 ± 0.00002 | S | Brown, Tilford, et al., 1974 | LLK |
8.6 ± 0.4 | EI | Gingerich, 1971 | LLK |
8.298 | S | Moore, 1970 | RDSH |
References
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Hanley, Whitten, et al., 1988
Hanley, L.; Whitten, J.L.; Anderson, S.L.,
Collision - Induced Dissociation and ab initio Studies of Boron Cluster Ions. Determination of Structures and Stabilities,
J. Phys. Chem., 1988, 92, 20, 5803, https://doi.org/10.1021/j100331a052
. [all data]
Wenthold, Kim, et al., 1997
Wenthold, P.G.; Kim, J.B.; Jonas, K.-L.; Lineberger, W.C.,
An Experimental and Computational Study of the Electron Affinity of Boron Oxide,
J. Phys. Chem. A, 1997, 101, 24, 4472, https://doi.org/10.1021/jp970645u
. [all data]
Scheer, Bilodeau, et al., 1998
Scheer, M.; Bilodeau, R.C.; Haugen, H.K.,
Negative ion of boron: An experimental study of the P-3 ground state,
Phys. Rev. Lett., 1998, 80, 12, 2562-2565, https://doi.org/10.1103/PhysRevLett.80.2562
. [all data]
Feigerle, Corderman, et al., 1981
Feigerle, C.S.; Corderman, R.R.; Lineberger, W.C.,
Electron affinities of B, Al, Bi, and Pb,
J. Chem. Phys., 1981, 74, 2, 1513, https://doi.org/10.1063/1.441174
. [all data]
Feldmann, Rackwitz, et al., 1977
Feldmann, D.; Rackwitz, R.; Heincke, H.; Kaiser, H.J.,
Photoabsolung von Elektronen der Ionen B-, Ga-, In-, Tl-, Ge-, und Pb-,
Z. Naturforschung A, 1977, 32, 302. [all data]
Lide, 1992
Lide, D.R. (Editor),
Ionization potentials of atoms and atomic ions
in Handbook of Chem. and Phys., 1992, 10-211. [all data]
Kelly, 1987
Kelly, R.L.,
Atomic and ionic spectrum lines of hydrogen through kryton,
J. Phys. Chem. Ref. Data, 1987, 16. [all data]
Murad and Hildenbrand, 1975
Murad, E.; Hildenbrand, D.L.,
Thermochemical properties of gaseous ZrO and ZrO2,
J. Chem. Phys., 1975, 63, 1133. [all data]
Brown, Tilford, et al., 1974
Brown, C.M.; Tilford, S.G.; Ginter, M.L.,
Absorption spectrum of B I in the 1350-1900-A region,
J. Opt. Soc. Am., 1974, 64, 877. [all data]
Gingerich, 1971
Gingerich, K.A.,
Gaseous metal borides. III. The dissociation energy and heat of formation of gold monoboride,
J. Chem. Phys., 1971, 54, 2646. [all data]
Moore, 1970
Moore, C.E.,
Ionization potentials and ionization limits derived from the analyses of optical spectra,
Natl. Stand. Ref. Data Ser., (U.S. Natl. Bur. Stand.), 1970, 34, 1. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
EA Electron affinity IE (evaluated) Recommended ionization energy ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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