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	hartrees
Energy at 0K	-277.518006
Energy at 298.15K
HF Energy	-276.920469
Nuclear repulsion energy	125.403846

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3137	3137
2	A_g	1589	1589
3	A_g	1508	1508
4	A_g	1135	1135
5	A_g	1103	1103
6	A_g	467	467
7	A_u	3218	3218
8	A_u	1262	1262
9	A_u	838	838
10	A_u	140	140
11	B_g	3196	3196
12	B_g	1336	1336
13	B_g	1216	1216
14	B_u	3142	3142
15	B_u	1597	1597
16	B_u	1397	1397
17	B_u	1114	1114
18	B_u	278	278

Atom	x (Å)	y (Å)	z (Å)
C1	0.429	0.623	0.000
C2	-0.429	-0.623	0.000
F3	-0.429	1.725	0.000
F4	0.429	-1.725	0.000
H5	1.058	0.660	0.892
H6	1.058	0.660	-0.892
H7	-1.058	-0.660	0.892
H8	-1.058	-0.660	-0.892

	C1	C2	F3	F4	H5	H6	H7	H8
C1		1.5123	1.3966	2.3483	1.0927	1.0927	2.1573	2.1573
C2	1.5123		2.3483	1.3966	2.1573	2.1573	1.0927	1.0927
F3	1.3966	2.3483		3.5557	2.0351	2.0351	2.6237	2.6237
F4	2.3483	1.3966	3.5557		2.6237	2.6237	2.0351	2.0351
H5	1.0927	2.1573	2.0351	2.6237		1.7843	2.4950	3.0674
H6	1.0927	2.1573	2.0351	2.6237	1.7843		3.0674	2.4950
H7	2.1573	1.0927	2.6237	2.0351	2.4950	3.0674		1.7843
H8	2.1573	1.0927	2.6237	2.0351	3.0674	2.4950	1.7843

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	F4	107.592	C1	C2	H7	110.791
C1	C2	H8	110.791	C2	C1	F3	107.592
C2	C1	H5	110.791	C2	C1	H6	110.791
F3	C1	H5	109.072	F3	C1	H6	109.072
F4	C2	H7	109.072	F4	C2	H8	109.072
H5	C1	H6	109.473	H7	C2	H8	109.473

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

using model chemistry: ROMP2/6-31G*

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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Number	Element	Mulliken
1	C	0.069
2	C	0.069
3	F	-0.418
4	F	-0.418
5	H	0.175
6	H	0.175
7	H	0.175
8	H	0.175

<r²>	88.259
(<r²>)^1/2	9.395

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

using model chemistry: ROMP2/6-31G*

States and conformations

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