Hydrogen cation
- Formula: H+
- Molecular weight: 1.00739
- IUPAC Standard InChIKey: GPRLSGONYQIRFK-UHFFFAOYSA-N
- CAS Registry Number: 12408-02-5
- Chemical structure:
This structure is also available as a 2d Mol file - Isotopologues:
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- Other data available:
- Gas phase thermochemistry data
- Reaction thermochemistry data: reactions 1 to 50, reactions 51 to 100, reactions 101 to 150, reactions 151 to 200, reactions 201 to 250, reactions 251 to 300, reactions 301 to 350, reactions 351 to 400, reactions 401 to 450, reactions 451 to 500, reactions 501 to 550, reactions 551 to 600, reactions 601 to 650, reactions 651 to 700, reactions 701 to 750, reactions 751 to 800, reactions 851 to 900, reactions 901 to 950, reactions 951 to 1000, reactions 1001 to 1050, reactions 1051 to 1100, reactions 1101 to 1150, reactions 1151 to 1200, reactions 1201 to 1250, reactions 1251 to 1300, reactions 1301 to 1350, reactions 1351 to 1375
- Gas phase ion energetics data
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Reaction thermochemistry data
Go To: Top, 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: 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.
Reactions 801 to 850
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1441.765 ± 0.042 | kJ/mol | D-EA | Scheer, Tho/gersen, et al., 1998 | gas phase; Given: 0.47164(6) eV |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1422.7 ± 0.46 | kJ/mol | H-TS | Scheer, Tho/gersen, et al., 1998 | gas phase; Given: 0.47164(6) eV |
C20H23O- + =
By formula: C20H23O- + H+ = C20H24O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1423. ± 10. | kJ/mol | G+TS | Mishima, Mustanir, et al., 2000 | gas phase; enol acidity: 323 K |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1392. ± 8.4 | kJ/mol | IMRE | Mishima, Mustanir, et al., 2000 | gas phase; enol acidity: 323 K |
C21H25O- + =
By formula: C21H25O- + H+ = C21H26O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1433. ± 10. | kJ/mol | G+TS | Mishima, Mustanir, et al., 2000 | gas phase; Keto acidity: 323 K |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1403. ± 8.4 | kJ/mol | IMRE | Mishima, Mustanir, et al., 2000 | gas phase; Keto acidity: 323 K |
By formula: C7F16NO4S2- + H+ = C7HF16NO4S2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrG° | 1199. ± 8.4 | kJ/mol | IMRE | Koppel, Taft, et al., 1994 | gas phase; Per Leito, Raamat, et al., 2009, dGacid is likely too weak by at least 5.3 kcal/mol, due to problems in the ladder at dGacid=293 and 299. |
CH3O2S- + =
By formula: CH3O2S- + H+ = CH4O2S
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1371. ± 22. | kJ/mol | G+TS | Sorensen | gas phase; Between CF2HCO2H and CF3CO2H. |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1341. ± 22. | kJ/mol | IMRB | Sorensen | gas phase; Between CF2HCO2H and CF3CO2H. |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1519. ± 8.8 | kJ/mol | D-EA | Walter, Gibson, et al., 2010 | gas phase; Given: 383.92±0.06 meV |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1498. ± 9.2 | kJ/mol | H-TS | Walter, Gibson, et al., 2010 | gas phase; Given: 383.92±0.06 meV |
C9H7N2- + =
By formula: C9H7N2- + H+ = C9H8N2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1481. ± 12. | kJ/mol | G+TS | Breuker, Knochenmuss, et al., 1999 | gas phase; Acid: 3-amino-quinoline |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1451. ± 11. | kJ/mol | IMRB | Breuker, Knochenmuss, et al., 1999 | gas phase; Acid: 3-amino-quinoline |
B- + =
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1622. ± 8.8 | kJ/mol | D-EA | Scheer, Bilodeau, et al., 1998 | gas phase; tunable IR laser |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1594. ± 9.2 | kJ/mol | H-TS | Scheer, Bilodeau, et al., 1998 | gas phase; tunable IR laser |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1473. ± 18. | kJ/mol | G+TS | Clifford, Wenthold, et al., 1998 | gas phase; between pyrazole, tBuSH |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1441. ± 17. | kJ/mol | IMRB | Clifford, Wenthold, et al., 1998 | gas phase; between pyrazole, tBuSH |
By formula: C4F9O6S3- + H+ = C4HF9O6S3
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrG° | 1209. ± 8.4 | kJ/mol | IMRE | Koppel, Taft, et al., 1994 | gas phase; Per Leito, Raamat, et al., 2009, dGacid is likely too weak by at least 5.3 kcal/mol, due to problems in the ladder at dGacid=293 and 299. |
C9HF18O4S2- + =
By formula: C9HF18O4S2- + H+ = C9H2F18O4S2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrG° | 1208. ± 8.4 | kJ/mol | IMRE | Koppel, Taft, et al., 1994 | gas phase; Per Leito, Raamat, et al., 2009, dGacid is likely too weak by at least 5.3 kcal/mol, due to problems in the ladder at dGacid=293 and 299. |
By formula: C5F12NO4S2- + H+ = C5HF12NO4S2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrG° | 1202. ± 8.4 | kJ/mol | IMRE | Koppel, Taft, et al., 1994 | gas phase; Per Leito, Raamat, et al., 2009, dGacid is likely too weak by at least 5.3 kcal/mol, due to problems in the ladder at dGacid=293 and 299. |
C8F18NO4S2- + =
By formula: C8F18NO4S2- + H+ = C8HF18NO4S2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrG° | 1189. ± 8.4 | kJ/mol | IMRE | Koppel, Taft, et al., 1994 | gas phase; Per Leito, Raamat, et al., 2009, dGacid is likely too weak by at least 5.3 kcal/mol, due to problems in the ladder at dGacid=293 and 299. |
By formula: C9H2F9O7S3- + H+ = C9H3F9O7S3
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrG° | 1221. ± 8.4 | kJ/mol | IMRE | Koppel, Taft, et al., 1994 | gas phase; Per Leito, Raamat, et al., 2009, dGacid is likely too weak by at least 5.3 kcal/mol, due to problems in the ladder at dGacid=293 and 299. |
C7H9- + =
By formula: C7H9- + H+ = C7H10
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1526. ± 13. | kJ/mol | D-EA | Zimmerman, Gygax, et al., 1978 | gas phase; Acid: 1,3,5-heptatriene |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1500. ± 14. | kJ/mol | H-TS | Zimmerman, Gygax, et al., 1978 | gas phase; Acid: 1,3,5-heptatriene |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1380. ± 15. | kJ/mol | D-EA | Moran and Ellison, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | >1441.8 | kJ/mol | IMRB | Goodings, Bohme, et al., 1986 | gas phase; S- deprotonates H2S, Sn- for n≥2, does not. |
C5H7O- + =
By formula: C5H7O- + H+ = C5H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1530. ± 17. | kJ/mol | G+TS | Brickhouse and Squires, 1988 | gas phase; Between MeCHO, Me2C=NOH |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1502. ± 17. | kJ/mol | IMRB | Brickhouse and Squires, 1988 | gas phase; Between MeCHO, Me2C=NOH |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1537. ± 21. | kJ/mol | G+TS | Krempp, Damrauer, et al., 1994 | gas phase; Between tBuOH, pyrrole |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1506. ± 21. | kJ/mol | IMRB | Krempp, Damrauer, et al., 1994 | gas phase; Between tBuOH, pyrrole |
C4H5O- + =
By formula: C4H5O- + H+ = C4H6O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1536. ± 17. | kJ/mol | G+TS | Brickhouse and Squires, 1988 | gas phase; Between Me2C=NOH, EtCHO |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1502. ± 17. | kJ/mol | IMRB | Brickhouse and Squires, 1988 | gas phase; Between Me2C=NOH, EtCHO |
By formula: C9H16N5O4S- + H+ = C9H17N5O4S
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1367. ± 10. | kJ/mol | CIDC | Morishetti, Huang, et al., 2010 | gas phase; Acid: Cys(Gly)3NH2 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1344. ± 11. | kJ/mol | H-TS | Morishetti, Huang, et al., 2010 | gas phase; Acid: Cys(Gly)3NH2 |
By formula: C11H19N6O5S + H+ = C11H20N6O5S
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1336. ± 9.6 | kJ/mol | CIDC | Morishetti, Huang, et al., 2010 | gas phase; Acid: Cys(Gly)4NH2 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1318. ± 10. | kJ/mol | H-TS | Morishetti, Huang, et al., 2010 | gas phase; Acid: Cys(Gly)4NH2 |
By formula: C9H16N5O4S- + H+ = C9H17N5O4S
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1397. ± 8.8 | kJ/mol | CIDC | Morishetti, Huang, et al., 2010 | gas phase; Acid: (Gly)3CysNH2 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1370. ± 9.2 | kJ/mol | H-TS | Morishetti, Huang, et al., 2010 | gas phase; Acid: (Gly)3CysNH2 |
By formula: C11H19N6O5S + H+ = C11H20N6O5S
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1347. ± 12. | kJ/mol | CIDC | Morishetti, Huang, et al., 2010 | gas phase; Acid: (Gly)4CysNH2 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1328. ± 12. | kJ/mol | H-TS | Morishetti, Huang, et al., 2010 | gas phase; Acid: (Gly)4CysNH2 |
By formula: H3OSi- + H+ = H4OSi
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1500. ± 18. | kJ/mol | G+TS | Damrauer, Simon, et al., 1991 | gas phase; Between CF3CH2OH, MeNO2 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1473. ± 18. | kJ/mol | IMRB | Damrauer, Simon, et al., 1991 | gas phase; Between CF3CH2OH, MeNO2 |
By formula: CH3F2OSi- + H+ = CH4F2OSi
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1449. ± 17. | kJ/mol | G+TS | Damrauer, Simon, et al., 1991 | gas phase; Between MeCO2H, HCO2H |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1422. ± 17. | kJ/mol | IMRB | Damrauer, Simon, et al., 1991 | gas phase; Between MeCO2H, HCO2H |
By formula: Cl3OSi- + H+ = HCl3OSi
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1359. ± 18. | kJ/mol | G+TS | Damrauer, Simon, et al., 1991 | gas phase; Between CF3CO2H, HNO3 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1326. ± 17. | kJ/mol | IMRB | Damrauer, Simon, et al., 1991 | gas phase; Between CF3CO2H, HNO3 |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1470. ± 16. | kJ/mol | D-EA | Bilodeau, Scheer, et al., 1998 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1389. ± 13. | kJ/mol | IMRB | Sallans, Lane, et al., 1985 | gas phase; May be from long-lived excited state |
By formula: C2H3Se- + H+ = C2H4Se
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1434. ± 29. | kJ/mol | G+TS | Guillemin, Riague, et al., 2005 | gas phase; Acid: CH2=CHSeH |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1406. ± 29. | kJ/mol | IMRB | Guillemin, Riague, et al., 2005 | gas phase; Acid: CH2=CHSeH |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1481. ± 15. | kJ/mol | G+TS | Ohair, Depuy, et al., 1993 | gas phase; between MeNO2, tBuSH |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1452. ± 13. | kJ/mol | IMRB | Ohair, Depuy, et al., 1993 | gas phase; between MeNO2, tBuSH |
By formula: C6H7OSi- + H+ = C6H8OSi
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1484. ± 17. | kJ/mol | G+TS | Damrauer, Simon, et al., 1991 | gas phase; Between MeSH, tBuSH |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1458. ± 17. | kJ/mol | IMRB | Damrauer, Simon, et al., 1991 | gas phase; Between MeSH, tBuSH |
By formula: C3H9O3Si- + H+ = C3H10O3Si
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1484. ± 17. | kJ/mol | G+TS | Damrauer, Simon, et al., 1991 | gas phase; Between MeSH, tBuSH |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1458. ± 17. | kJ/mol | IMRB | Damrauer, Simon, et al., 1991 | gas phase; Between MeSH, tBuSH |
By formula: C2H7O3Si- + H+ = C2H8O3Si
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1484. ± 17. | kJ/mol | G+TS | Damrauer, Simon, et al., 1991 | gas phase; Between MeSH, tBuSH |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1458. ± 17. | kJ/mol | IMRB | Damrauer, Simon, et al., 1991 | gas phase; Between MeSH, tBuSH |
By formula: C2H6FOSi- + H+ = C2H7FOSi
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1484. ± 17. | kJ/mol | G+TS | Damrauer, Simon, et al., 1991 | gas phase; Between MeSH, tBuSH |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1458. ± 17. | kJ/mol | IMRB | Damrauer, Simon, et al., 1991 | gas phase; Between MeSH, tBuSH |
By formula: CH3AlFO- + H+ = CH4AlFO
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1468. ± 17. | kJ/mol | G+TS | Damrauer, Krempp, et al., 1991 | gas phase; Between tBuSH, HOAc |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1439. ± 17. | kJ/mol | IMRB | Damrauer, Krempp, et al., 1991 | gas phase; Between tBuSH, HOAc |
By formula: C3H9O4Si- + H+ = C3H10O4Si
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1484. ± 17. | kJ/mol | G+TS | Damrauer, Simon, et al., 1991 | gas phase; Between MeSH, tBuSH |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1458. ± 17. | kJ/mol | IMRB | Damrauer, Simon, et al., 1991 | gas phase; Between MeSH, tBuSH |
C7H9O- + =
By formula: C7H9O- + H+ = C7H10O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1569. ± 17. | kJ/mol | G+TS | Brickhouse and Squires, 1988 | gas phase; Between EtOH, EtOAc |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1540. ± 17. | kJ/mol | IMRB | Brickhouse and Squires, 1988 | gas phase; Between EtOH, EtOAc |
By formula: C7H9OSi- + H+ = C7H10OSi
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1491. ± 17. | kJ/mol | G+TS | Damrauer, Simon, et al., 1991 | gas phase; Between MeSH, MeNO2 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1464. ± 17. | kJ/mol | IMRB | Damrauer, Simon, et al., 1991 | gas phase; Between MeSH, MeNO2 |
C5H7O2- + =
By formula: C5H7O2- + H+ = C5H8O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1568. ± 18. | kJ/mol | G+TS | Sachs and Kass, 1994 | gas phase; Between tBuOH and HF |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1535. ± 17. | kJ/mol | IMRB | Sachs and Kass, 1994 | gas phase; Between tBuOH and HF |
C2H5F2Si- + =
By formula: C2H5F2Si- + H+ = C2H6F2Si
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1590. ± 19. | kJ/mol | G+TS | Allison and McMahon, 1990 | gas phase; Between PhCH3, HCF3 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1554. ± 19. | kJ/mol | IMRB | Allison and McMahon, 1990 | gas phase; Between PhCH3, HCF3 |
By formula: HSSi- + H+ = H2SSi
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1426. ± 26. | kJ/mol | G+TS | Damrauer, Krempp, et al., 1993 | gas phase; Between HCO2H, HCl |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1393. ± 25. | kJ/mol | IMRB | Damrauer, Krempp, et al., 1993 | gas phase; Between HCO2H, HCl |
By formula: C3H4NO- + H+ = C3H5NO
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1613. ± 21. | kJ/mol | G+TS | Kass, Filley, et al., 1986 | gas phase; Between H2O, MeOH |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1586. ± 21. | kJ/mol | IMRB | Kass, Filley, et al., 1986 | gas phase; Between H2O, MeOH |
I3Sn- + =
By formula: I3Sn- + H+ = HI3Si
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1148.9 | kJ/mol | N/A | Check, Faust, et al., 2001 | gas phase; NiO2-(q); ; ΔS(EA)=5.0 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1128.4 | kJ/mol | N/A | Check, Faust, et al., 2001 | gas phase; NiO2-(q); ; ΔS(EA)=5.0 |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1647. ± 13. | kJ/mol | G+TS | Guo and Kass, 1992 | gas phase; Between Me2NH, H2O |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1617. ± 13. | kJ/mol | IMRB | Guo and Kass, 1992 | gas phase; Between Me2NH, H2O |
C21H15- + =
By formula: C21H15- + H+ = C21H16
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1613. ± 21. | kJ/mol | G+TS | Bartmess, Kester, et al., 1986 | gas phase; Between H2O, MeOH |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1577. ± 21. | kJ/mol | IMRB | Bartmess, Kester, et al., 1986 | gas phase; Between H2O, MeOH |
C3H4N- + =
By formula: C3H4N- + H+ = C3H5N
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1640. ± 21. | kJ/mol | G+TS | Merrill, Dahlke, et al., 1996 | gas phase; comparable to H2O. |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1607. ± 21. | kJ/mol | IMRB | Merrill, Dahlke, et al., 1996 | gas phase; comparable to H2O. |
C4H3N2O3- + =
By formula: C4H3N2O3- + H+ = C4H4N2O3
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1402. ± 12. | kJ/mol | G+TS | Cumming and Kebarle, 1978 | gas phase; Acid: barbituric acid |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1369. ± 8.4 | kJ/mol | IMRE | Cumming and Kebarle, 1978 | gas phase; Acid: barbituric acid |
C3H7Si- + =
By formula: C3H7Si- + H+ = C3H8Si
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1613. ± 21. | kJ/mol | G+TS | Damrauer, DePuy, et al., 1986 | gas phase; Between H2O, MeOH |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1586. ± 21. | kJ/mol | IMRB | Damrauer, DePuy, et al., 1986 | gas phase; Between H2O, MeOH |
C5H7- + =
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1620. ± 21. | kJ/mol | G+TS | Guo and Kass, 1992 | gas phase; Between H2O, MeOH |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1586. ± 21. | kJ/mol | IMRB | Guo and Kass, 1992 | gas phase; Between H2O, MeOH |
C8H9- + =
By formula: C8H9- + H+ = C8H10
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1632. ± 8.8 | kJ/mol | G+TS | Lee and Squires, 1986 | gas phase; Ca. 1 kcal < H2O |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1603. ± 8.4 | kJ/mol | IMRB | Lee and Squires, 1986 | gas phase; Ca. 1 kcal < H2O |
C6H9- + =
By formula: C6H9- + H+ = C6H10
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1617. ± 21. | kJ/mol | G+TS | Lee and Squires, 1986 | gas phase; Between H2O, MeOH |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1586. ± 21. | kJ/mol | IMRB | Lee and Squires, 1986 | gas phase; Between H2O, MeOH |
References
Go To: Top, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Scheer, Tho/gersen, et al., 1998
Scheer, M.; Tho/gersen, J.; Bilodeau, R.C.; Brodie, C.A.; Haugen, H.K.,
Experimental Evidence that the 6s6p2Pj States of Cs- are Shape Resonances,
Phys. Rev. Lett., 1998, 80, 4, 684, https://doi.org/10.1103/PhysRevLett.80.684
. [all data]
Mishima, Mustanir, et al., 2000
Mishima, M.; Mustanir; Eventova, I.; Rappoport, Z.,
Acidities and pK(Enol) values of stable simple enols in the gas phase,
J. Chem. Soc. Perkin Trans., 2000, 2, 7, 1505-1512, https://doi.org/10.1039/b001155j
. [all data]
Koppel, Taft, et al., 1994
Koppel, I.A.; Taft, R.W.; Anvia, F.; Zhu, S.Z.; Hu, L.Q.; Sung, K.S.; Desmarteau, D.D.; Yagupolskii, L.M.,
The Gas-Phase Acidities of Very Strong Neutral Bronsted Acids,
J. Am. Chem. Soc., 1994, 116, 7, 3047, https://doi.org/10.1021/ja00086a038
. [all data]
Leito, Raamat, et al., 2009
Leito, I.; Raamat, E.; Kutt, A.; Saame, J.; Kipper, K.; Koppel, I.A.; Koppel, I.; Zhang, M.; Mishima, M.; Yagupolskii, L.M.; Garlyauskayte, R.Y.; Filatov, A.A.,
Revision of the Gas-Phase Acidity Scale below 300 kcal mol(-1),
J. Phys. Chem. A, 2009, 113, 29, 8421-8424, https://doi.org/10.1021/jp903780k
. [all data]
Sorensen
Sorensen, D.,
, Thesis, Univ. of Tennessee. [all data]
Walter, Gibson, et al., 2010
Walter, C.W.; Gibson, N.D.; Carman, D.J.; Li, Y.G.; Matyas, D.J.,
Electron affinity of indium and the fine structure of In- measured using infrared photodetachment threshold spectroscopy,
Phys. Rev. A, 2010, 82, 3, 032507, https://doi.org/10.1103/PhysRevA.82.032507
. [all data]
Breuker, Knochenmuss, et al., 1999
Breuker, K.; Knochenmuss, R.; Zenobi, R.,
Gas-phase basicities of deprotonated matrix-assisted laser desorption/ionization matrix molecules,
Int. J. Mass Spectrom., 1999, 184, 1, 25-38, https://doi.org/10.1016/S1387-3806(98)14200-8
. [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]
Clifford, Wenthold, et al., 1998
Clifford, E.P.; Wenthold, P.G.; Lineberger, W.C.; Peterssom, G.A.; Broaddus, K.M.; Kass, S.R.; Kato, S.,
Properties of Diazocarbene [CNN] and the diazomethyl Radical [HCNN] via Ion Chemistry and Spectroscopy,
J. Phys. Chem. A, 1998, 102, 36, 7100, https://doi.org/10.1021/jp9802735
. [all data]
Zimmerman, Gygax, et al., 1978
Zimmerman, A.H.; Gygax, R.; Brauman, J.I.,
Electron photodetachment spectroscopy of polyene anions. Electron affinities of pentadienyl and heptatrienyl radicals,
J. Am. Chem. Soc., 1978, 100, 5595. [all data]
Moran and Ellison, 1988
Moran, S.; Ellison, G.B.,
Photoelectron Spectroscopy of Sulfur Ions,
J. Phys. Chem., 1988, 92, 7, 1794, https://doi.org/10.1021/j100318a021
. [all data]
Goodings, Bohme, et al., 1986
Goodings, J.M.; Bohme, D.K.; Elguindi, K.; Fox, A.,
Sulphur Anion Chemistry in Hydrocarbon Flames with H2S, OCS, and SO2 Additives,
Can. J. Chem., 1986, 64, 4, 689, https://doi.org/10.1139/v86-110
. [all data]
Brickhouse and Squires, 1988
Brickhouse, M.D.; Squires, R.R.,
Gas Phase Bronsted vs. Lewis Acid-Base Reactions of 6,6-Dimethylfulvene. A Sensitive Probe of the Electronic Structures of Organic Anions,
J. Am. Chem. Soc., 1988, 110, 9, 2706, https://doi.org/10.1021/ja00217a002
. [all data]
Krempp, Damrauer, et al., 1994
Krempp, M.; Damrauer, R.; Depuy, C.H.; Keheyan, Y.,
Gas-Phase Ion Chemistry of Boron Hydride Anions,
J. Am. Chem. Soc., 1994, 116, 8, 3629, https://doi.org/10.1021/ja00087a071
. [all data]
Morishetti, Huang, et al., 2010
Morishetti, K.K.; Huang, B.D.; Yates, J.M.; Ren, J.H.,
Gas-Phase Acidities of Cysteine-Polyglycine Peptides: The Effect of the Cysteine Position,
J. Am. Soc. Mass Spectrom., 2010, 21, 4, 603-614, https://doi.org/10.1016/j.jasms.2009.12.008
. [all data]
Damrauer, Simon, et al., 1991
Damrauer, R.; Simon, R.; Krempp, M.,
Effect of Substituents on the Gas-Phase Acidity of Silanols,
J. Am. Chem. Soc., 1991, 113, 12, 4431, https://doi.org/10.1021/ja00012a009
. [all data]
Bilodeau, Scheer, et al., 1998
Bilodeau, R.C.; Scheer, M.; Haugen, H.K.,
Infrared Laser Photodetachment of Transition Metal Negative Ions: Studies on Cr-, Mo-, Cu-, and Ag-,
J. Phys. B: Atom. Mol. Opt. Phys., 1998, 31, 17, 3885-3891, https://doi.org/10.1088/0953-4075/31/17/013
. [all data]
Sallans, Lane, et al., 1985
Sallans, L.; Lane, K.R.; Squires, R.R.; Freiser, B.S.,
Generation and reactions of atomic metal anions in the gas phase. Determination of the heterolytic and homolytic bond energies of VH, VrH, FeH, CoH, and MoH,
J. Am. Chem. Soc., 1985, 107, 4379. [all data]
Guillemin, Riague, et al., 2005
Guillemin, J.C.; Riague, E.H.; Gal, J.F.; Maria, P.C.; Mo, O.; Yanez, M.,
Acidity trends in alpha,beta-unsaturated sulfur, selenium, and tellurium derivatives: Comparison with C-, Si-, Ge-, Sn-, N-, P-, As-, and Sb-containing analogues,
Chem. Eur. J., 2005, 11, 7, 2145-2153, https://doi.org/10.1002/chem.200400989
. [all data]
Ohair, Depuy, et al., 1993
Ohair, R.A.J.; Depuy, C.H.; Bierbaum, V.M.,
Gas-Phase Chemistry and Thermochemistry of the Hydroxysulfide Anion, HOS-,
J. Phys. Chem., 1993, 97, 30, 7955, https://doi.org/10.1021/j100132a026
. [all data]
Damrauer, Krempp, et al., 1991
Damrauer, R.; Krempp, M.; Schmidt, M.W.; Gordon, M.S.,
Gas-Phase Chemistry of the Dimethylaluminum Oxide Ion and Related Aluminum Oxide Ions - Comparison of Reactivity with Siloxide Ions,
J. Am. Chem. Soc., 1991, 113, 7, 2393, https://doi.org/10.1021/ja00007a007
. [all data]
Sachs and Kass, 1994
Sachs, R.K.; Kass, S.R.,
3-Carbomethoxycyclopropen-3-yl Anion - Formation and Characterization of an Antiaromatic Ion,
J. Am. Chem. Soc., 1994, 116, 2, 783, https://doi.org/10.1021/ja00081a055
. [all data]
Allison and McMahon, 1990
Allison, C.E.; McMahon, T.B.,
How Strong is the Si=C Bond in Fluoro- and Methyl Substituted Silaethylenes? An Experimental Determination of Pi Bond Strengths,
J. Am. Chem. Soc., 1990, 112, 5, 1672, https://doi.org/10.1021/ja00161a002
. [all data]
Damrauer, Krempp, et al., 1993
Damrauer, R.; Krempp, M.; Ohair, R.A.J.,
Gas-Phase Chemistry of HSiS- and HSiNH- - Ions Related to Silathioformaldehyde and the Silaazomethine of Formaldehyde,
J. Am. Chem. Soc., 1993, 115, 5, 1998, https://doi.org/10.1021/ja00058a055
. [all data]
Kass, Filley, et al., 1986
Kass, S.R.; Filley, J.; Van Doren, J.M.; DePuy, C.H.,
Nitrous oxide in gas-phase ion-molecule chemistry: A versatile reagent for the determination of carbanion structure,
J. Am. Chem. Soc., 1986, 108, 2849. [all data]
Check, Faust, et al., 2001
Check, C.E.; Faust, T.O.; Bailey, J.M.; Wright, B.J.; Gilbert, T.M.; Sunderlin, L.S.,
Addition of Polarization and Diffuse Functions to the LANL2DZ Basis Set for P-Block Elements,
J. Phys. Chem. A,, 2001, 105, 34, 8111, https://doi.org/10.1021/jp011945l
. [all data]
Guo and Kass, 1992
Guo, H.Z.; Kass, S.R.,
Vinylcyclopropyl Anion - Structure, Reactivity, Thermodynamic Properties, and an Unusual Rearrangement,
J. Am. Chem. Soc., 1992, 114, 4, 1244, https://doi.org/10.1021/ja00030a019
. [all data]
Bartmess, Kester, et al., 1986
Bartmess, J.E.; Kester, J.; Borden, W.T.; Köser, H.G.,
Triphenylcyclopropenide Anion in the Gas Phase,
Tetrahed. Lett., 1986, 27, 49, 5931, https://doi.org/10.1016/S0040-4039(00)85365-4
. [all data]
Merrill, Dahlke, et al., 1996
Merrill, G.N.; Dahlke, G.D.; Kass, S.R.,
beta-Cyanoethyl Anion: Lusus Naturae,
J. Am. Chem. Soc., 1996, 118, 18, 4462, https://doi.org/10.1021/ja953796o
. [all data]
Cumming and Kebarle, 1978
Cumming, J.B.; Kebarle, P.,
Summary of gas phase measurements involving acids AH. Entropy changes in proton transfer reactions involving negative ions. Bond dissociation energies D(A-H) and electron affinities EA(A),
Can. J. Chem., 1978, 56, 1. [all data]
Damrauer, DePuy, et al., 1986
Damrauer, R.; DePuy, C.H.; Davidson, I.M.T.; Hughes, K.J.,
Gas phase ion chemistry of dimethylsilene,
Organometallics, 1986, 5, 2050. [all data]
Lee and Squires, 1986
Lee, R.E.; Squires, R.R.,
Anionic homoaromaticity: A gas phase experimental study,
J. Am. Chem. Soc., 1986, 105, 5078. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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