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	hartrees
Energy at 0K	-472.652429
Energy at 298.15K	-472.656414
HF Energy	-472.074560
Nuclear repulsion energy	263.636619

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3254	3041	0.00
2	A_g	1558	1456	0.00
3	A_g	1204	1125	0.00
4	A_g	1142	1067	0.00
5	A_g	619	578	0.00
6	A_g	358	334	0.00
7	A_u	1479	1382	63.34
8	A_u	1257	1174	215.85
9	A_u	190	178	4.26
10	A_u	89	83	3.12
11	B_g	1499	1401	0.00
12	B_g	1216	1136	0.00
13	B_g	492	459	0.00
14	B_u	3268	3054	42.73
15	B_u	1411	1318	32.97
16	B_u	1178	1101	167.77
17	B_u	530	495	17.53
18	B_u	403	377	71.00

Atom	x (Å)	y (Å)	z (Å)
C1	-0.251	0.712	0.000
C2	0.251	-0.712	0.000
H3	-1.332	0.748	0.000
H4	1.332	-0.748	0.000
F5	0.251	1.339	1.125
F6	0.251	1.339	-1.125
F7	-0.251	-1.339	1.125
F8	-0.251	-1.339	-1.125

	C1	C2	H3	H4	F5	F6	F7	F8
C1		1.5092	1.0816	2.1528	1.3827	1.3827	2.3395	2.3395
C2	1.5092		2.1528	1.0816	2.3395	2.3395	1.3827	1.3827
H3	1.0816	2.1528		3.0547	2.0300	2.0300	2.6059	2.6059
H4	2.1528	1.0816	3.0547		2.6059	2.6059	2.0300	2.0300
F5	1.3827	2.3395	2.0300	2.6059		2.2507	2.7252	3.5345
F6	1.3827	2.3395	2.0300	2.6059	2.2507		3.5345	2.7252
F7	2.3395	1.3827	2.6059	2.0300	2.7252	3.5345		2.2507
F8	2.3395	1.3827	2.6059	2.0300	3.5345	2.7252	2.2507

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H4	111.319	C1	C2	F7	107.914
C1	C2	F8	107.914	C2	C1	H3	111.319
C2	C1	F5	107.914	C2	C1	F6	107.914
H3	C1	F5	110.328	H3	C1	F6	110.328
H4	C2	F7	110.328	H4	C2	F8	110.328
F5	C1	F6	108.953	F7	C2	F8	108.953

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

using model chemistry: CISD/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: CISD/3-21G*

States and conformations

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