Hydrogen cation
- Formula: H+
- Molecular weight: 1.00739
- IUPAC Standard InChIKey: GPRLSGONYQIRFK-UHFFFAOYSA-N
- CAS Registry Number: 12408-02-5
- Chemical structure:
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- 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 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 801 to 850, 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
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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 351 to 400
C3H4BrO2- + =
By formula: C3H4BrO2- + H+ = C3H5BrO2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1409. ± 8.8 | kJ/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrH° | 1407. ± 8.8 | kJ/mol | G+TS | Caldwell, McMahon, et al., 1985 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1380. ± 8.4 | kJ/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrG° | 1377. ± 8.4 | kJ/mol | IMRE | Caldwell, McMahon, et al., 1985 | gas phase |
Si- + =
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1477. ± 11. | kJ/mol | D-EA | Blondel, Chaibi, et al., 2005 | gas phase; (28)Si: 1.3895213(13) eV; revised analysis of Blondel, Delsart, et al., 2001 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1456. ± 12. | kJ/mol | H-TS | Blondel, Chaibi, et al., 2005 | gas phase; (28)Si: 1.3895213(13) eV; revised analysis of Blondel, Delsart, et al., 2001 |
C4H6BrO2- + =
By formula: C4H6BrO2- + H+ = C4H7BrO2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1409. ± 8.8 | kJ/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrH° | 1407. ± 8.8 | kJ/mol | G+TS | Caldwell, McMahon, et al., 1985 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1380. ± 8.4 | kJ/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrG° | 1378. ± 8.4 | kJ/mol | IMRE | Caldwell, McMahon, et al., 1985 | gas phase |
C6H11O2- + =
By formula: C6H11O2- + H+ = C6H12O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1443. ± 8.8 | kJ/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrH° | 1444. ± 8.8 | kJ/mol | G+TS | Taft and Topsom, 1987 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1413. ± 8.4 | kJ/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrG° | 1415. ± 8.4 | kJ/mol | IMRE | Taft and Topsom, 1987 | gas phase |
C3H2F3O2- + =
By formula: C3H2F3O2- + H+ = C3H3F3O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1397. ± 8.8 | kJ/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrH° | 1400. ± 8.8 | kJ/mol | G+TS | Taft and Topsom, 1987 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1368. ± 8.4 | kJ/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrG° | 1371. ± 8.4 | kJ/mol | IMRE | Taft and Topsom, 1987 | gas phase |
C6H13Si- + =
By formula: C6H13Si- + H+ = C6H14Si
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | <1592.3 ± 3.8 | kJ/mol | G+TS | DePuy, Bierbaum, et al., 1980 | gas phase; More acidic than MeOH. Computations indicate dGacid ca. 367 kcal/mol |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | <1564.8 | kJ/mol | IMRB | DePuy, Bierbaum, et al., 1980 | gas phase; More acidic than MeOH. Computations indicate dGacid ca. 367 kcal/mol |
C5H9O2- + =
By formula: C5H9O2- + H+ = C5H10O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1446. ± 8.8 | kJ/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrH° | 1451. ± 8.8 | kJ/mol | G+TS | Taft and Topsom, 1987 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1416. ± 8.4 | kJ/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrG° | 1421. ± 8.4 | kJ/mol | IMRE | Taft and Topsom, 1987 | gas phase |
C4H2NO2- + =
By formula: C4H2NO2- + H+ = C4H3NO2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1360. ± 19. | kJ/mol | EIAE | Cooper and Compton, 1973 | gas phase; From maleimide. G3MP2B3 calculations indicate a dHacid = 342 kcal/mol |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1328. ± 21. | kJ/mol | H-TS | Cooper and Compton, 1973 | gas phase; From maleimide. G3MP2B3 calculations indicate a dHacid = 342 kcal/mol |
C4H6ClO2- + =
By formula: C4H6ClO2- + H+ = C4H7ClO2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1430. ± 11. | kJ/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrH° | 1431. ± 16. | kJ/mol | G+TS | Cumming and Kebarle, 1978 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1401. ± 8.4 | kJ/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrG° | 1401. ± 8.4 | kJ/mol | IMRE | Cumming and Kebarle, 1978 | gas phase |
By formula: C3H5O2- + H+ = C3H6O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1454. ± 9.2 | kJ/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrH° | 1454. ± 12. | kJ/mol | G+TS | Cumming and Kebarle, 1978 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1424. ± 8.4 | kJ/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrG° | 1424. ± 8.4 | kJ/mol | IMRE | Cumming and Kebarle, 1978 | gas phase |
C3H4ClO2- + =
By formula: C3H4ClO2- + H+ = C3H5ClO2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1426. ± 11. | kJ/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrH° | 1426. ± 16. | kJ/mol | G+TS | Cumming and Kebarle, 1978 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1397. ± 8.4 | kJ/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrG° | 1397. ± 8.4 | kJ/mol | IMRE | Cumming and Kebarle, 1978 | gas phase |
C4H6ClO2- + =
By formula: C4H6ClO2- + H+ = C4H7ClO2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1446. ± 11. | kJ/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrH° | 1445. ± 16. | kJ/mol | G+TS | Cumming and Kebarle, 1978 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1417. ± 8.4 | kJ/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrG° | 1416. ± 8.4 | kJ/mol | IMRE | Cumming and Kebarle, 1978 | gas phase |
C8H8NO- + =
By formula: C8H8NO- + H+ = C8H9NO
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1454. ± 8.8 | kJ/mol | G+TS | Taft and Bordwell, 1988 | gas phase |
ΔrH° | 1476. ± 9.6 | kJ/mol | G+TS | Cumming and Kebarle, 1978 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1425. ± 8.4 | kJ/mol | IMRE | Taft and Bordwell, 1988 | gas phase |
ΔrG° | 1447. ± 8.4 | kJ/mol | IMRE | Cumming and Kebarle, 1978 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1484. ± 18. | kJ/mol | G+TS | Kato, Gareyev, et al., 1998 | gas phase; Acid: bicyclo[3.3.0]octa-1(5),2,6-triene. Between MeSH, tBuSH. |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1458. ± 18. | kJ/mol | IMRB | Kato, Gareyev, et al., 1998 | gas phase; Acid: bicyclo[3.3.0]octa-1(5),2,6-triene. Between MeSH, tBuSH. |
C2H2BrO2- + =
By formula: C2H2BrO2- + H+ = C2H3BrO2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1401. ± 9.6 | kJ/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrH° | 1397. ± 13. | kJ/mol | G+TS | Cumming and Kebarle, 1978 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1373. ± 8.4 | kJ/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrG° | 1370. ± 8.4 | kJ/mol | IMRE | Cumming and Kebarle, 1978 | gas phase |
C5H7- + =
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1720. ± 15. | kJ/mol | CIDT | Graul and Squires, 1990 | gas phase; Reed, Kass, et al., 2002 claim this is the 1,4-pentadien-2-ide anion |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1684. ± 15. | kJ/mol | H-TS | Graul and Squires, 1990 | gas phase; Reed, Kass, et al., 2002 claim this is the 1,4-pentadien-2-ide anion |
By formula: C10H7N2- + H+ = C10H8N2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1351. ± 9.2 | kJ/mol | G+TS | Koppel, Taft, et al., 1994 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1321. ± 8.4 | kJ/mol | IMRE | Koppel, Taft, et al., 1994 | gas phase |
ΔrG° | 1323. ± 8.4 | kJ/mol | IMRE | Jinfeng, Topsom, et al., 1988 | gas phase; value altered from reference due to change in acidity scale |
By formula: C3H5O3- + H+ = C3H6O3
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1413. ± 9.2 | kJ/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase; May have large entropy correction from cyclization; see HOCH2CO2- |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1383. ± 8.4 | kJ/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase; May have large entropy correction from cyclization; see HOCH2CO2- |
Cl3Si- + =
By formula: Cl3Si- + H+ = HCl3Si
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | <1510. ± 10. | kJ/mol | D-EA | Pabst, Margrave, et al., 1977 | gas phase; From SiCl4. G3MP2B3 calculations indicate an EA of ca. 3.0 eV. |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | <1478. ± 10. | kJ/mol | H-TS | Pabst, Margrave, et al., 1977 | gas phase; From SiCl4. G3MP2B3 calculations indicate an EA of ca. 3.0 eV. |
C10H10NO2- + = C10H11NO2
By formula: C10H10NO2- + H+ = C10H11NO2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1395. ± 9.2 | kJ/mol | G+TS | Koppel, Mishima, et al., 1993 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1365. ± 8.4 | kJ/mol | IMRE | Koppel, Mishima, et al., 1993 | gas phase |
ΔrG° | 1365. ± 8.4 | kJ/mol | IMRE | Taft and Topsom, 1987 | gas phase; value altered from reference due to change in acidity scale |
C3F8NO4S2- + = C3HF8NO4S2
By formula: C3F8NO4S2- + H+ = C3HF8NO4S2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrG° | 1193. ± 8.4 | kJ/mol | IMRE | Leito, Raamat, et al., 2009 | gas phase |
ΔrG° | 1215. ± 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: C4F10NO4S2- + H+ = C4HF10NO4S2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrG° | 1187. ± 8.4 | kJ/mol | IMRE | Leito, Raamat, et al., 2009 | gas phase |
ΔrG° | 1211. ± 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. |
C3F6NO4S2- + = C3HF6NO4S2
By formula: C3F6NO4S2- + H+ = C3HF6NO4S2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrG° | 1189. ± 8.4 | kJ/mol | IMRE | Leito, Raamat, et al., 2009 | gas phase |
ΔrG° | 1212. ± 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: C7H5O- + H+ = C7H6O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1435. ± 11. | kJ/mol | G+TS | Hu, Hill, et al., 1997 | gas phase; Calculations imply singlet carbene in anion, triplet in phenol |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1406. ± 10. | kJ/mol | CIDC | Hu, Hill, et al., 1997 | gas phase; Calculations imply singlet carbene in anion, triplet in phenol |
By formula: C5H5O2- + H+ = C5H6O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1641. ± 18. | kJ/mol | G+TS | Sachs and Kass, 1994 | gas phase; Between water and fluorobenzene. Site of protonation uncertain. |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1608. ± 17. | kJ/mol | IMRB | Sachs and Kass, 1994 | gas phase; Between water and fluorobenzene. Site of protonation uncertain. |
C7H5O3- + =
By formula: C7H5O3- + H+ = C7H6O3
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1405. ± 8.8 | kJ/mol | G+TS | Kebarle and McMahon, 1977 | gas phase; This is probably the phenolic site acidity, not the carboxylic. |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1376. ± 8.4 | kJ/mol | IMRE | Kebarle and McMahon, 1977 | gas phase; This is probably the phenolic site acidity, not the carboxylic. |
C7H7O- + =
By formula: C7H7O- + H+ = C7H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1548. ± 8.8 | kJ/mol | G+TS | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1520. ± 8.4 | kJ/mol | IMRE | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale |
C6F5O- + =
By formula: C6F5O- + H+ = C6HF5O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1372. ± 9.2 | kJ/mol | G+TS | Koppel, Taft, et al., 1994 | gas phase |
ΔrH° | <1630. ± 11. | kJ/mol | Acid | Briscese and Riveros, 1975 | gas phase; HO- + C6F6 -> , acidity probably ca. 320 kcal |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1342. ± 8.4 | kJ/mol | IMRE | Koppel, Taft, et al., 1994 | gas phase |
C8H5- + =
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1551. ± 9.6 | kJ/mol | G+TS | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1518. ± 8.4 | kJ/mol | IMRE | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale |
By formula: CH2NS- + H+ = CH3NS
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1464. ± 15. | kJ/mol | G+TS | Kass and DePuy, 1985 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1436. ± 15. | kJ/mol | IMRB | Kass and DePuy, 1985 | gas phase; value altered from reference due to change in acidity scale |
C2H2D5O- + =
By formula: C2H2D5O- + H+ = C2H3D3O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1580. ± 9.6 | kJ/mol | G+TS | Dang, Motell, et al., 1993 | gas phase; CIDC in SIFT at 30 V: 0.20 ± 0.15 kcal/mol weaker than protio |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1552. ± 9.2 | kJ/mol | CIDC | Dang, Motell, et al., 1993 | gas phase; CIDC in SIFT at 30 V: 0.20 ± 0.15 kcal/mol weaker than protio |
C7H7- + =
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1672. ± 7.5 | kJ/mol | G+TS | Lee and Squires, 1986 | gas phase; Between EtNH2, nPrNH2 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1637. ± 6.3 | kJ/mol | IMRB | Lee and Squires, 1986 | gas phase; Between EtNH2, nPrNH2 |
ΔrG° | 1628. ± 21. | kJ/mol | IMRB | Wright and Beauchamp, 1981 | gas phase |
HN2O- + =
By formula: HN2O- + H+ = H2N2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1513. ± 9.6 | kJ/mol | G+TS | Sheldon, Ohair, et al., 1995 | gas phase; Acidity between PhCOMe, HCONHMe, near CF3CH2OH. Acid: H2N-NO |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1482. ± 8.4 | kJ/mol | IMRB | Sheldon, Ohair, et al., 1995 | gas phase; Acidity between PhCOMe, HCONHMe, near CF3CH2OH. Acid: H2N-NO |
C14H9CrF6- + = C14H10CrF6
By formula: C14H9CrF6- + H+ = C14H10CrF6
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1487. ± 11. | kJ/mol | G+TS | Kahn, Hehre, et al., 1984 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1457. ± 10. | kJ/mol | IMRE | Kahn, Hehre, et al., 1984 | gas phase; value altered from reference due to change in acidity scale |
C14H9CrF6- + = C14H10CrF6
By formula: C14H9CrF6- + H+ = C14H10CrF6
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1490. ± 11. | kJ/mol | G+TS | Kahn, Hehre, et al., 1984 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1459. ± 10. | kJ/mol | IMRE | Kahn, Hehre, et al., 1984 | gas phase; value altered from reference due to change in acidity scale |
C7H6NO3- + =
By formula: C7H6NO3- + H+ = C7H7NO3
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1380. ± 8.8 | kJ/mol | G+TS | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1350. ± 8.4 | kJ/mol | IMRE | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
C8H11O- + =
By formula: C8H11O- + H+ = C8H12O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1529. ± 8.8 | kJ/mol | G+TS | Bartmess and Kiplinger, 1986 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1497. ± 8.4 | kJ/mol | IMRE | Bartmess and Kiplinger, 1986 | gas phase; value altered from reference due to change in acidity scale |
C7H7- + =
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1686. ± 4.2 | kJ/mol | D-EA | Gunion, Karney, et al., 1996 | gas phase; Assignment of 1- and 2- isomers uncertain. |
ΔrH° | 1685.6 ± 3.8 | kJ/mol | G+TS | Lee, DePuy, et al., 1996 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1651.4 ± 3.3 | kJ/mol | IMRE | Lee, DePuy, et al., 1996 | gas phase |
C9H19O- + =
By formula: C9H19O- + H+ = C9H20O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1538. ± 8.8 | kJ/mol | G+TS | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1510. ± 8.4 | kJ/mol | IMRE | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale |
By formula: C7H7O2S- + H+ = C7H8O2S
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1427. ± 8.8 | kJ/mol | G+TS | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1399. ± 8.4 | kJ/mol | IMRE | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
By formula: C7H7O2S- + H+ = C7H8O2S
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1412. ± 8.8 | kJ/mol | G+TS | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1383. ± 8.4 | kJ/mol | IMRE | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
By formula: C7H7O3S- + H+ = C7H8O3S
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1406. ± 8.8 | kJ/mol | G+TS | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1377. ± 8.4 | kJ/mol | IMRE | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
C7H7O3S- + =
By formula: C7H7O3S- + H+ = C7H8O3S
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1385. ± 8.8 | kJ/mol | G+TS | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1356. ± 8.4 | kJ/mol | IMRE | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
C13H9O2- + =
By formula: C13H9O2- + H+ = C13H10O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1428. ± 8.8 | kJ/mol | G+TS | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1400. ± 8.4 | kJ/mol | IMRE | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
C9H5N2- + =
By formula: C9H5N2- + H+ = C9H6N2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1419. ± 9.6 | kJ/mol | G+TS | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1390. ± 8.4 | kJ/mol | IMRE | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
By formula: C5H10NO2- + H+ = C5H11NO2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1486. ± 9.2 | kJ/mol | G+TS | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1458. ± 8.4 | kJ/mol | IMRE | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale |
By formula: C6H11S2- + H+ = C6H12S2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1565. ± 8.8 | kJ/mol | G+TS | Bartmess, Hays, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1535. ± 8.4 | kJ/mol | IMRE | Bartmess, Hays, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
C6H3Cl2O- + =
By formula: C6H3Cl2O- + H+ = C6H4Cl2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1399. ± 8.8 | kJ/mol | G+TS | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1370. ± 8.4 | kJ/mol | IMRE | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
C6H2Cl3O- + =
By formula: C6H2Cl3O- + H+ = C6H3Cl3O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1384. ± 9.2 | kJ/mol | G+TS | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1355. ± 8.4 | kJ/mol | IMRE | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
By formula: C6H7O- + H+ = C6H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1496. ± 8.8 | kJ/mol | G+TS | Bartmess and Kiplinger, 1986 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1464. ± 8.4 | kJ/mol | IMRE | Bartmess and Kiplinger, 1986 | gas phase; value altered from reference due to change in acidity scale |
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.
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Caldwell, McMahon, et al., 1985
Caldwell, G.; McMahon, T.B.; Kebarle, P.; Bartmess, J.E.; Kiplinger, J.P.,
Methyl substituent effects in the gas phase acidities of halosubstituted oxygen acids. A realignment with substituent effects in solution,
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Blondel, Delsart, et al., 2001
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Electron spectrometry at the mu eV level and the electron affinities of Si and F,
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Taft and Topsom, 1987
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The Nature and Analysis of Substituent Effects,
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Gas phase reactions of anions with substituted silanes,
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Electron attachment and cesium collisional ionization studies of tetrafluorosuccinic and hexafluoroglutaric anhydrides: Molecular electron affinities,
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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]
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Structural and Solvent Effects Evaluated from Acidities Measured in Dimethyl Sulfoxide and in the Gas Phase,
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Kato, S.; Gareyev, R.; DePuy, C.H.; Bierbaum, V.M.,
Structures, energetics, and chemical reactions of anions derived from cyclooctatetraene,
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Gas-Phase Acidities Derived from Threshold Energies for Activated Reactions,
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Reed, Kass, et al., 2002
Reed, D.R.; Kass, S.R.; Mondanaro, K.R.; Dailey, W.P.,
Formation of a 1-bicyclo[1.1.1]pentyl anion and an experimental determination of the acidity and C-H bond dissociation energy of 3-tert-butylbicyclo[1.1.1]pentane,
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Acidities of Substituted Acetic Acids,
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Pabst, Margrave, et al., 1977
Pabst, R.E.; Margrave, J.L.; Franklin, J.L.,
Electron impact studies of the tetrachlorides and tetrabromides of silicon and germanium,
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3-Carbomethoxycyclopropen-3-yl Anion - Formation and Characterization of an Antiaromatic Ion,
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Infrared spectra of gas phase ions and their use in elucidating reaction mechanisms. Identification of C7H7- structural isomers by multiphoton electron detachment using a low-powered laser,
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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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