CCCBDB listing of experimental data page 2

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Property	Value	units	Reference
Hfg(298.15K)	-323.50	kJ mol^-1	TRC
Hfg(0K)	-311.00	kJ mol^-1	TRC
Entropy (298.15K)	307.73	J K^-1 mol^-1	TRC
Integrated Heat Capacity (0 to 298.15K)	16.30	kJ mol^-1	TRC
Heat Capacity (298.15K)	81.80	J K^-1 mol^-1	webbook

Bond Type	Count
H-C	3
H-O	1
C-C	1
C=C	1
C-O	1
C=O	1

Atom 1	Atom 2
O1	H2
O1	C4
O3	C4
C4	C5
C5	H6
C5	C7
C7	H8
C7	H9

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	¹A^'	C_s	True							C_s	2	3

State	Config	State description	Conf description	Exp. min.	Quadrupole (D Å)			Reference	comment	Point Group	Components
State	Config	State description	Conf description	Exp. min.	xx	yy	zz	Reference	comment	Point Group	dipole	quadrupole
1	1	¹A^'	C_s	True						C_s	2	3

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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squib	reference	DOI
TRC	Frenkel, M; Marsh, K.N.; Wilhoit, R.C.; Kabo, G.J.; Roganov, G.N.,Thermodynamics of Organic Compounds in the Gas State,Thermodynamics Research Center, College Station, TX, 1994
webbook	NIST Chemistry Webbook (http://webbook.nist.gov/chemistry)	10.18434/T4D303

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Experimental data for C3H4O2 (2-Propenoic acid)

Experimental data for C₃H₄O₂ (2-Propenoic acid)