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	hartrees
Energy at 0K	-277.739756
Energy at 298.15K
HF Energy	-277.013038
Nuclear repulsion energy	127.027797

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A	3082	3082
2	A	3024	3024
3	A	1461	1461
4	A	1422	1422
5	A	1283	1283
6	A	1124	1124
7	A	1107	1107
8	A	873	873
9	A	317	317
10	A	145	145
11	B	3096	3096
12	B	3015	3015
13	B	1460	1460
14	B	1373	1373
15	B	1241	1241
16	B	1075	1075
17	B	897	897
18	B	489	489

Atom	x (Å)	y (Å)	z (Å)
C1	0.271	0.706	0.516
C2	-0.271	-0.706	0.516
F3	-0.271	1.422	-0.551
F4	0.271	-1.422	-0.551
H5	-0.012	1.216	1.458
H6	1.372	0.699	0.405
H7	0.012	-1.216	1.458
H8	-1.372	-0.699	0.405

	C1	C2	F3	F4	H5	H6	H7	H8
C1		1.5113	1.3950	2.3806	1.1084	1.1073	2.1561	2.1647
C2	1.5113		2.3806	1.3950	2.1561	2.1647	1.1084	1.1073
F3	1.3950	2.3806		2.8960	2.0365	2.0339	3.3288	2.5749
F4	2.3806	1.3950	2.8960		3.3288	2.5749	2.0365	2.0339
H5	1.1084	2.1561	2.0365	3.3288		1.8145	2.4330	2.5752
H6	1.1073	2.1647	2.0339	2.5749	1.8145		2.5752	3.0807
H7	2.1561	1.1084	3.3288	2.0365	2.4330	2.5752		1.8145
H8	2.1647	1.1073	2.5749	2.0339	2.5752	3.0807	1.8145

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	F4	109.927	C1	C2	H7	109.824
C1	C2	H8	110.563	C2	C1	F3	109.927
C2	C1	H5	109.824	C2	C1	H6	110.563
F3	C1	H5	108.335	F3	C1	H6	108.190
F4	C2	H7	108.335	F4	C2	H8	108.190
H5	C1	H6	109.956	H7	C2	H8	109.956

All results from a given calculation for C₂H₄F₂ (1,2-difluoroethane)

using model chemistry: CCSD(T)/Sadlej_pVTZ

States and conformations

Conformer 1 (C2H anti)

Conformer 2 (C2 gauche)

	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 C2H4F2 (1,2-difluoroethane)

using model chemistry: CCSD(T)/Sadlej_pVTZ

States and conformations

Conformer 1 (C2H anti)

Conformer 2 (C2 gauche)

All results from a given calculation for C₂H₄F₂ (1,2-difluoroethane)