H2CCO+

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Species data

Common Formula	H2CCO+
Stoichiometric Formula	C2H2O+
Name	Ketene cation
Mass	42.01002 a.m.u
Charge	1
CAS	64999-16-2
Inchi	InChI=1S/C2H2O/c1-2-3/h1H2/q+1
InchiKey	UJTMLNARSPORHR-UHFFFAOYSA-N
State	Ground State

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KIDA H2CCO+

ISM Abundance

log₁₀ Abundance	Reference	Source Name	Source Type	Link

Polarizability

Evaluation	Definition	Value (Å³)	Method	Origin	Reference
	total	2.848	Calculations	Database : NIST COMPUTATIONAL CHEMISTRY COMPARISON AND BENCHMARK DATABASE

Definition: total Value (Å³): 2.848 Method: Calculations Origin: Database : NIST COMPUTATIONAL CHEMISTRY COMPARISON AND BENCHMARK DATABASE Reference:

Dipole moment

Evaluation	Value (D)	Method	Origin	Reference
	-3.376	Calculations	Database : NIST COMPUTATIONAL CHEMISTRY COMPARISON AND BENCHMARK DATABASE

Value (D): -3.376 Method: Calculations Origin: Database : NIST COMPUTATIONAL CHEMISTRY COMPARISON AND BENCHMARK DATABASE Reference:

Enthalpy of formation

Evaluation	T (K)	Value (kJ.mol^-1)	Method	Origin	Reference
	0	882.19 ±0.15	Reviews and Evaluations	Database : Burcat
	298	885.29 ±0.15	Reviews and Evaluations	Database : Burcat

T (K): 0 Value (kJ.mol^-1) : 882.19 ±0.15 Method: Reviews and Evaluations Origin: Other database Reference:
T (K): 298 Value (kJ.mol^-1) : 885.29 ±0.15 Method: Reviews and Evaluations Origin: Other database Reference:

Desorption energy

No data

Diffusion energy

No data