H2+

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Species data

Common Formula	H2+
Stoichiometric Formula	H2+
Name	Hydrogen cation
Mass	2.01510 a.m.u
Charge	1
CAS	12184-90-6
Inchi	InChI=1S/H2/h1H/q+1
InchiKey	ZZIJOQHRUPVPQC-UHFFFAOYSA-N
State	Ground State

Search all reactions with H2+

KIDA H2+

ISM Abundance

log₁₀ Abundance	Reference	Source Name	Source Type	Link

Polarizability

Evaluation	Definition	Value (Å³)	Method	Origin	Reference
	total	0.314	Calculations	Database : NIST COMPUTATIONAL CHEMISTRY COMPARISON AND BENCHMARK DATABASE

Definition: total Value (Å³): 0.314 Method: Calculations Origin: Database : NIST COMPUTATIONAL CHEMISTRY COMPARISON AND BENCHMARK DATABASE Reference:

Dipole moment

Evaluation	Value (D)	Method	Origin	Reference
	0	N/A	Database : NIST COMPUTATIONAL CHEMISTRY COMPARISON AND BENCHMARK DATABASE

Value (D): 0 Method: N/A Origin: Database : NIST COMPUTATIONAL CHEMISTRY COMPARISON AND BENCHMARK DATABASE Reference:

Enthalpy of formation

Evaluation	T (K)	Value (kJ.mol^-1)	Method	Origin	Reference
	0	1488.365 ±1.1	Reviews and Evaluations	Database : Burcat
	298	1494.677 ±1.1	Reviews and Evaluations	Database : Burcat
	298	142.39	Measurements	Database : CCCBDB (http://cccbdb.nist.gov/)

T (K): 0 Value (kJ.mol^-1) : 1488.365 ±1.1 Method: Reviews and Evaluations Origin: Other database Reference:
T (K): 298 Value (kJ.mol^-1) : 1494.677 ±1.1 Method: Reviews and Evaluations Origin: Other database Reference:
T (K): 298 Value (kJ.mol^-1) : 142.39 Method: Measurements Origin: Other database Reference:

Desorption energy

No data

Diffusion energy

No data