Lanthanum ion (1+)
- Formula: La+
- Molecular weight: 138.90492
- IUPAC Standard InChI: InChI=1S/La/q+1
- IUPAC Standard InChIKey: INRSKRFIGKKUGO-UHFFFAOYSA-N
- CAS Registry Number: 14175-57-6
- Chemical structure:
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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 as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar
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Individual Reactions
+
= (
•
)
By formula: La+ + C2H4 = (La+ • C2H4)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 220. ± 10. | kJ/mol | PDiss | Ranashinge and Freiser, 1992 | gas phase; M |
Enthalpy of reaction
| ΔrH° (kJ/mol) | T (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 90.0 | CID | Armentrout and Kickel, 1994 | gas phase; ΔrH>=, guided ion beam CID; M |
+
= (
•
)
By formula: La+ + C2H2 = (La+ • C2H2)
Enthalpy of reaction
| ΔrH° (kJ/mol) | T (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 262. (+30.,-0.) | CID | Armentrout and Kickel, 1994 | gas phase; guided ion beam CID; M |
+
= (
•
)
By formula: La+ + CH3 = (La+ • CH3)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 231. ± 15. | kJ/mol | CIDT | Sunderlin and Armentrout, 1989 | RCD |
+
= (
•
)
By formula: La+ + CH2 = (La+ • CH2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 411. ± 5.9 | kJ/mol | CIDT | Sunderlin and Armentrout, 1989 | RCD |
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.
Ranashinge and Freiser, 1992
Ranashinge, Y.A.; Freiser, B.S.,
Gas-Phase Photodissociation of MC2H2+ (M = Sc, Y, La). Determination of D0(M+ - C2H2),
Chem. Phys. Let., 1992, 200, 1-2, 135, https://doi.org/10.1016/0009-2614(92)87058-W
. [all data]
Armentrout and Kickel, 1994
Armentrout, P.B.; Kickel, B.L.,
Gas Phase Thermochemistry of Transition Metal Ligand Systems: Reassessment of Values and Periodic Trends, in Organometallic Ion Chemistry, B. S. Freiser, ed, 1994. [all data]
Sunderlin and Armentrout, 1989
Sunderlin, L.S.; Armentrout, P.B.,
Periodic Trends in Chemical Reactivity: Reactions of Sc+, Y+, La+, and Lu+ with Methane and Ethane,
J. Am. Chem. Soc., 1989, 111, 11, 3845, https://doi.org/10.1021/ja00193a015
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
T Temperature ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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