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	hartrees
Energy at 0K	-277.744251
Energy at 298.15K
HF Energy	-277.012590
Nuclear repulsion energy	126.843235

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A	3093	3093
2	A	3030	3030
3	A	1460	1460
4	A	1416	1416
5	A	1275	1275
6	A	1121	1121
7	A	1094	1094
8	A	866	866
9	A	321	321
10	A	152	152
11	B	3106	3106
12	B	3022	3022
13	B	1454	1454
14	B	1368	1368
15	B	1235	1235
16	B	1057	1057
17	B	888	888
18	B	489	489

Atom	x (Å)	y (Å)	z (Å)
C1	0.272	0.705	0.519
C2	-0.272	-0.705	0.519
F3	-0.272	1.422	-0.553
F4	0.272	-1.422	-0.553
H5	-0.011	1.220	1.459
H6	1.373	0.698	0.405
H7	0.011	-1.220	1.459
H8	-1.373	-0.698	0.405

	C1	C2	F3	F4	H5	H6	H7	H8
C1		1.5108	1.4003	2.3825	1.1081	1.1070	2.1574	2.1648
C2	1.5108		2.3825	1.4003	2.1574	2.1648	1.1081	1.1070
F3	1.4003	2.3825		2.8963	2.0395	2.0360	3.3332	2.5745
F4	2.3825	1.4003	2.8963		3.3332	2.5745	2.0395	2.0360
H5	1.1081	2.1574	2.0395	3.3332		1.8161	2.4391	2.5778
H6	1.1070	2.1648	2.0360	2.5745	1.8161		2.5778	3.0803
H7	2.1574	1.1081	3.3332	2.0395	2.4391	2.5778		1.8161
H8	2.1648	1.1070	2.5745	2.0360	2.5778	3.0803	1.8161

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	F4	109.795	C1	C2	H7	109.978
C1	C2	H8	110.627	C2	C1	F3	109.795
C2	C1	H5	109.978	C2	C1	H6	110.627
F3	C1	H5	108.226	F3	C1	H6	108.020
F4	C2	H7	108.226	F4	C2	H8	108.020
H5	C1	H6	110.139	H7	C2	H8	110.139

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

using model chemistry: MP4/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: MP4/Sadlej_pVTZ

States and conformations

Conformer 1 (C2H anti)

Conformer 2 (C2 gauche)

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