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	hartrees
Energy at 0K	-277.739763
Energy at 298.15K
HF Energy	-277.036419
Nuclear repulsion energy	125.580199

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3129	3129
2	A_g	1551	1551
3	A_g	1498	1498
4	A_g	1117	1117
5	A_g	1084	1084
6	A_g	464	464
7	A_u	3214	3214
8	A_u	1271	1271
9	A_u	840	840
10	A_u	121	121
11	B_g	3190	3190
12	B_g	1327	1327
13	B_g	1212	1212
14	B_u	3135	3135
15	B_u	1558	1558
16	B_u	1399	1399
17	B_u	1088	1088
18	B_u	286	286

Atom	x (Å)	y (Å)	z (Å)
C1	0.425	0.626	0.000
C2	-0.425	-0.626	0.000
F3	-0.425	1.727	0.000
F4	0.425	-1.727	0.000
H5	1.049	0.670	0.891
H6	1.049	0.670	-0.891
H7	-1.049	-0.670	0.891
H8	-1.049	-0.670	-0.891

	C1	C2	F3	F4	H5	H6	H7	H8
C1		1.5133	1.3916	2.3530	1.0886	1.0886	2.1557	2.1557
C2	1.5133		2.3530	1.3916	2.1557	2.1557	1.0886	1.0886
F3	1.3916	2.3530		3.5576	2.0209	2.0209	2.6328	2.6328
F4	2.3530	1.3916	3.5576		2.6328	2.6328	2.0209	2.0209
H5	1.0886	2.1557	2.0209	2.6328		1.7827	2.4892	3.0618
H6	1.0886	2.1557	2.0209	2.6328	1.7827		3.0618	2.4892
H7	2.1557	1.0886	2.6328	2.0209	2.4892	3.0618		1.7827
H8	2.1557	1.0886	2.6328	2.0209	3.0618	2.4892	1.7827

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	F4	108.125	C1	C2	H7	110.836
C1	C2	H8	110.836	C2	C1	F3	108.125
C2	C1	H5	110.836	C2	C1	H6	110.836
F3	C1	H5	108.519	F3	C1	H6	108.519
F4	C2	H7	108.519	F4	C2	H8	108.519
H5	C1	H6	109.927	H7	C2	H8	109.927

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

using model chemistry: ROMP2/TZVP

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	0.147
2	C	0.147
3	F	-0.311
4	F	-0.311
5	H	0.082
6	H	0.082
7	H	0.082
8	H	0.082

<r²>	88.577
(<r²>)^1/2	9.412

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

using model chemistry: ROMP2/TZVP

States and conformations

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