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	hartrees
Energy at 0K	-277.802196
Energy at 298.15K
HF Energy	-277.013261
Nuclear repulsion energy	127.187478

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A	3088	3088
2	A	3030	3030
3	A	1465	1465
4	A	1426	1426
5	A	1284	1284
6	A	1129	1129
7	A	1110	1110
8	A	877	877
9	A	323	323
10	A	152	152
11	B	3101	3101
12	B	3021	3021
13	B	1459	1459
14	B	1376	1376
15	B	1244	1244
16	B	1078	1078
17	B	900	900
18	B	492	492

Atom	x (Å)	y (Å)	z (Å)
C1	0.271	0.704	0.516
C2	-0.271	-0.704	0.516
F3	-0.271	1.420	-0.551
F4	0.271	-1.420	-0.551
H5	-0.010	1.215	1.458
H6	1.372	0.696	0.404
H7	0.010	-1.215	1.458
H8	-1.372	-0.696	0.404

	C1	C2	F3	F4	H5	H6	H7	H8
C1		1.5094	1.3936	2.3768	1.1075	1.1066	2.1538	2.1614
C2	1.5094		2.3768	1.3936	2.1538	2.1614	1.1075	1.1066
F3	1.3936	2.3768		2.8906	2.0354	2.0326	3.3246	2.5690
F4	2.3768	1.3936	2.8906		3.3246	2.5690	2.0354	2.0326
H5	1.1075	2.1538	2.0354	3.3246		1.8136	2.4300	2.5722
H6	1.1066	2.1614	2.0326	2.5690	1.8136		2.5722	3.0763
H7	2.1538	1.1075	3.3246	2.0354	2.4300	2.5722		1.8136
H8	2.1614	1.1066	2.5690	2.0326	2.5722	3.0763	1.8136

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	F4	109.860	C1	C2	H7	109.833
C1	C2	H8	110.482	C2	C1	F3	109.860
C2	C1	H5	109.833	C2	C1	H6	110.482
F3	C1	H5	108.398	F3	C1	H6	108.227
F4	C2	H7	108.398	F4	C2	H8	108.227
H5	C1	H6	109.998	H7	C2	H8	109.998

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

using model chemistry: CCSD(T)=FULL/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)=FULL/Sadlej_pVTZ

States and conformations

Conformer 1 (C2H anti)

Conformer 2 (C2 gauche)

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