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	hartrees
Energy at 0K	-277.888124
Energy at 298.15K
HF Energy	-277.049234
Nuclear repulsion energy	125.928854

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3116	3116
2	A_g	1534	1534
3	A_g	1469	1469
4	A_g	1118	1118
5	A_g	1090	1090
6	A_g	464	464
7	A_u	3197	3197
8	A_u	1255	1255
9	A_u	821	821
10	A_u	120	120
11	B_g	3172	3172
12	B_g	1322	1322
13	B_g	1192	1192
14	B_u	3122	3122
15	B_u	1545	1545
16	B_u	1379	1379
17	B_u	1101	1101
18	B_u	280	280

Atom	x (Å)	y (Å)	z (Å)
C1	0.424	0.626	0.000
C2	-0.424	-0.626	0.000
F3	-0.424	1.721	0.000
F4	0.424	-1.721	0.000
H5	1.049	0.668	0.889
H6	1.049	0.668	-0.889
H7	-1.049	-0.668	0.889
H8	-1.049	-0.668	-0.889

	C1	C2	F3	F4	H5	H6	H7	H8
C1		1.5116	1.3858	2.3470	1.0873	1.0873	2.1526	2.1526
C2	1.5116		2.3470	1.3858	2.1526	2.1526	1.0873	1.0873
F3	1.3858	2.3470		3.5458	2.0177	2.0177	2.6247	2.6247
F4	2.3470	1.3858	3.5458		2.6247	2.6247	2.0177	2.0177
H5	1.0873	2.1526	2.0177	2.6247		1.7770	2.4877	3.0572
H6	1.0873	2.1526	2.0177	2.6247	1.7770		3.0572	2.4877
H7	2.1526	1.0873	2.6247	2.0177	2.4877	3.0572		1.7770
H8	2.1526	1.0873	2.6247	2.0177	3.0572	2.4877	1.7770

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	F4	108.119	C1	C2	H7	110.786
C1	C2	H8	110.786	C2	C1	F3	108.119
C2	C1	H5	110.786	C2	C1	H6	110.786
F3	C1	H5	108.740	F3	C1	H6	108.740
F4	C2	H7	108.740	F4	C2	H8	108.740
H5	C1	H6	109.608	H7	C2	H8	109.608

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

using model chemistry: ROMP2/Def2TZVPP

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	0.209
2	C	0.209
3	F	-0.310
4	F	-0.310
5	H	0.051
6	H	0.051
7	H	0.051
8	H	0.051

<r²>	88.006
(<r²>)^1/2	9.381

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

using model chemistry: ROMP2/Def2TZVPP

States and conformations

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