CCCBDB listing of experimental data page 2

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Property	Value	Uncertainty	units	Reference
Hfg(298.15K)	29.00	2.00	kJ mol^-1	2005Se
Hfg(0K)		2.00	kJ mol^-1	2005Se
Entropy (298.15K)	219.00	0.10	J K^-1 mol^-1	2005Se
Heat Capacity (298.15K)	34.70	0.10	J K^-1 mol^-1	2005Se

Mode Number	Symmetry	Frequency			Intensity			Comment	Description
Mode Number	Symmetry	Fundamental(cm^-1)	Harmonic(cm^-1)	Reference	(km mol^-1)	unc.	Reference	Comment	Description
1	A₁	2345		Shim					H₂Se s-stretch
2	A₁	1034		Shim					bend
3	B₂	2358		Shim					H₂Se a-stretch

Description	Value	unc.	Connectivity				Reference	Comment
Description	Value	unc.	Atom 1	Atom 2	Atom 3	Atom 4	Reference	Comment
rSeH	1.460		1	2			1998Kuc	r0
aHSeH	90.9		2	1	3		1998Kuc

Atom	y (Å)	z (Å)
Se1	0.0000	0.0569
H2	1.0405	-0.9673
H3	-1.0405	-0.9673

	Se1	H2	H3
Se1		1.4600	1.4600
H2	1.4600		2.0809
H3	1.4600	2.0809

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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You are here: Experimental > One molecule all properties

State	Config	State description	Conf description	Exp. min.	Dipole (Debye)				Reference	comment	Point Group	Components
State	Config	State description	Conf description	Exp. min.	x	y	z	total	Reference	comment	Point Group	dipole	quadrupole
1	1	¹A₁	C_2v	True			-0.627	0.627	1969Mir/Cor:4118	from D2Se	C_2v	1	2

squib	reference	DOI
1969Mir/Cor:4118	AM Mirri, C Corbelli, P Forti "Stark Effect and Electric Dipole Moment of H2Se" J. Chem. Phys. 50, 4118, 1969	10.1063/1.1671680
1998Gus/Rui:163	M Gussoni, R Rui, G Zerbi "Electronic and relaxation contribution to linear molecular polarizability. An analysis of the experimental values" J. Mol. Struct. 447 (1998) 163-215	10.1016/S0022-2860(97)00292-5
1998Kuc	K Kuchitsu(ed) "Structure of Free Polyatomic Molecules - Basic Data" Springer, Berlin, 1998	10.1007/978-3-642-45748-7
2005Se	A Olin, B Nolang, G Osadchii, L-O Ohman, E Rosen, "CHEMICAL THERMODYNAMICS OF SELENIUM", OECD Nuclear Energy Agency, Elsevier, 2005
NISTtriatomic	NIST Triatomic Spectral Database (http://www.physics.nist.gov/PhysRefData/MolSpec/Triatomic/index.html)	10.18434/T4DW2S
Shim	Shimanouchi, T. , Tables of Molecular Vibrational Frequencies, Consolidated Volu	10.6028/NBS.NSRDS.39
webbook	NIST Chemistry Webbook (http://webbook.nist.gov/chemistry)	10.18434/T4D303

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Experimental data for H2Se+ (Hydrogen selenide cation)

Experimental data for H₂Se⁺ (Hydrogen selenide cation)