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	hartrees
Energy at 0K	-472.738308
Energy at 298.15K	-472.742173
HF Energy	-472.072040
Nuclear repulsion energy	261.500840

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3134	3012	0.00
2	A_g	1502	1443	0.00
3	A_g	1153	1109	0.00
4	A_g	1101	1058	0.00
5	A_g	596	573	0.00
6	A_g	346	332	0.00
7	A_u	1433	1377	54.67
8	A_u	1208	1161	187.68
9	A_u	184	176	3.96
10	A_u	85	81	2.57
11	B_g	1453	1397	0.00
12	B_g	1167	1122	0.00
13	B_g	472	454	0.00
14	B_u	3149	3027	49.43
15	B_u	1365	1312	29.48
16	B_u	1131	1087	141.46
17	B_u	512	492	15.46
18	B_u	386	371	64.04

Atom	x (Å)	y (Å)	z (Å)
C1	-0.253	0.717	0.000
C2	0.253	-0.717	0.000
H3	-1.343	0.750	0.000
H4	1.343	-0.750	0.000
F5	0.253	1.349	1.136
F6	0.253	1.349	-1.136
F7	-0.253	-1.349	1.136
F8	-0.253	-1.349	-1.136

	C1	C2	H3	H4	F5	F6	F7	F8
C1		1.5197	1.0909	2.1675	1.3947	1.3947	2.3571	2.3571
C2	1.5197		2.1675	1.0909	2.3571	2.3571	1.3947	1.3947
H3	1.0909	2.1675		3.0767	2.0480	2.0480	2.6240	2.6240
H4	2.1675	1.0909	3.0767		2.6240	2.6240	2.0480	2.0480
F5	1.3947	2.3571	2.0480	2.6240		2.2723	2.7439	3.5626
F6	1.3947	2.3571	2.0480	2.6240	2.2723		3.5626	2.7439
F7	2.3571	1.3947	2.6240	2.0480	2.7439	3.5626		2.2723
F8	2.3571	1.3947	2.6240	2.0480	3.5626	2.7439	2.2723

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H4	111.187	C1	C2	F7	107.873
C1	C2	F8	107.873	C2	C1	H3	111.187
C2	C1	F5	107.873	C2	C1	F6	107.873
H3	C1	F5	110.364	H3	C1	F6	110.364
H4	C2	F7	110.364	H4	C2	F8	110.364
F5	C1	F6	109.096	F7	C2	F8	109.096

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

using model chemistry: QCISD/3-21G*

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/3-21G*

States and conformations

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