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	hartrees
Energy at 0K	-475.602760
Energy at 298.15K	-475.606771
HF Energy	-474.644059
Nuclear repulsion energy	265.724400

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3151	3001	0.00
2	A_g	1529	1456	0.00
3	A_g	1200	1143	0.00
4	A_g	1148	1094	0.00
5	A_g	630	600	0.00
6	A_g	363	346	0.00
7	A_u	1413	1346	64.85
8	A_u	1209	1152	331.94
9	A_u	203	194	2.43
10	A_u	91	86	2.46
11	B_g	1444	1375	0.00
12	B_g	1178	1122	0.00
13	B_g	495	472	0.00
14	B_u	3160	3010	51.55
15	B_u	1351	1286	34.84
16	B_u	1168	1112	208.97
17	B_u	537	511	10.91
18	B_u	420	400	52.69

Atom	x (Å)	y (Å)	z (Å)
C1	-0.247	0.716	0.000
C2	0.247	-0.716	0.000
H3	-1.340	0.775	0.000
H4	1.340	-0.775	0.000
F5	0.247	1.338	1.107
F6	0.247	1.338	-1.107
F7	-0.247	-1.338	1.107
F8	-0.247	-1.338	-1.107

	C1	C2	H3	H4	F5	F6	F7	F8
C1		1.5148	1.0942	2.1778	1.3626	1.3626	2.3331	2.3331
C2	1.5148		2.1778	1.0942	2.3331	2.3331	1.3626	1.3626
H3	1.0942	2.1778		3.0961	2.0154	2.0154	2.6238	2.6238
H4	2.1778	1.0942	3.0961		2.6238	2.6238	2.0154	2.0154
F5	1.3626	2.3331	2.0154	2.6238		2.2132	2.7217	3.5080
F6	1.3626	2.3331	2.0154	2.6238	2.2132		3.5080	2.7217
F7	2.3331	1.3626	2.6238	2.0154	2.7217	3.5080		2.2132
F8	2.3331	1.3626	2.6238	2.0154	3.5080	2.7217	2.2132

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H4	112.168	C1	C2	F7	108.241
C1	C2	F8	108.241	C2	C1	H3	112.168
C2	C1	F5	108.241	C2	C1	F6	108.241
H3	C1	F5	109.749	H3	C1	F6	109.749
H4	C2	F7	109.749	H4	C2	F8	109.749
F5	C1	F6	108.610	F7	C2	F8	108.610

All results from a given calculation for CHF₂CHF₂ (1,1,2,2-tetrafluoroethane)

using model chemistry: QCISD/6-31G*

States and conformations

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for CHF2CHF2 (1,1,2,2-tetrafluoroethane)

using model chemistry: QCISD/6-31G*

States and conformations

All results from a given calculation for CHF₂CHF₂ (1,1,2,2-tetrafluoroethane)