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	hartrees
Energy at 0K	-475.619050
Energy at 298.15K	-475.623081
HF Energy	-474.647998
Nuclear repulsion energy	265.855129

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3184	2997	0.00
2	A_g	1537	1447	0.00
3	A_g	1204	1133	0.00
4	A_g	1149	1082	0.00
5	A_g	630	593	0.00
6	A_g	364	342	0.00
7	A_u	1419	1336	67.30
8	A_u	1212	1141	329.55
9	A_u	204	192	2.46
10	A_u	90	85	2.33
11	B_g	1450	1365	0.00
12	B_g	1182	1112	0.00
13	B_g	496	467	0.00
14	B_u	3193	3006	56.64
15	B_u	1360	1280	39.35
16	B_u	1169	1101	206.98
17	B_u	538	506	10.85
18	B_u	420	395	51.59

Atom	x (Å)	y (Å)	z (Å)
C1	-0.247	0.716	0.000
C2	0.247	-0.716	0.000
H3	-1.335	0.772	0.000
H4	1.335	-0.772	0.000
F5	0.247	1.338	1.106
F6	0.247	1.338	-1.106
F7	-0.247	-1.338	1.106
F8	-0.247	-1.338	-1.106

	C1	C2	H3	H4	F5	F6	F7	F8
C1		1.5149	1.0895	2.1722	1.3618	1.3618	2.3332	2.3332
C2	1.5149		2.1722	1.0895	2.3332	2.3332	1.3618	1.3618
H3	1.0895	2.1722		3.0848	2.0115	2.0115	2.6197	2.6197
H4	2.1722	1.0895	3.0848		2.6197	2.6197	2.0115	2.0115
F5	1.3618	2.3332	2.0115	2.6197		2.2120	2.7220	3.5074
F6	1.3618	2.3332	2.0115	2.6197	2.2120		3.5074	2.7220
F7	2.3332	1.3618	2.6197	2.0115	2.7220	3.5074		2.2120
F8	2.3332	1.3618	2.6197	2.0115	3.5074	2.7220	2.2120

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H4	112.000	C1	C2	F7	108.285
C1	C2	F8	108.285	C2	C1	H3	112.000
C2	C1	F5	108.285	C2	C1	F6	108.285
H3	C1	F5	109.791	H3	C1	F6	109.791
H4	C2	F7	109.791	H4	C2	F8	109.791
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)