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	hartrees
Energy at 0K	-277.599533
Energy at 298.15K
HF Energy	-276.965818
Nuclear repulsion energy	125.608912

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3179	3179	0.00
2	A_g	1561	1561	0.00
3	A_g	1501	1501	0.00
4	A_g	1150	1150	0.00
5	A_g	1102	1102	0.00
6	A_g	472	472	0.00
7	A_u	3255	3255	41.54
8	A_u	1274	1274	5.82
9	A_u	835	835	0.02
10	A_u	127	127	14.76
11	B_g	3232	3232	0.00
12	B_g	1336	1336	0.00
13	B_g	1212	1212	0.00
14	B_u	3182	3182	53.54
15	B_u	1565	1565	3.82
16	B_u	1396	1396	9.93
17	B_u	1114	1114	239.98
18	B_u	291	291	21.62

Atom	x (Å)	y (Å)	z (Å)
C1	0.427	0.626	0.000
C2	-0.427	-0.626	0.000
F3	-0.427	1.723	0.000
F4	0.427	-1.723	0.000
H5	1.052	0.677	0.895
H6	1.052	0.677	-0.895
H7	-1.052	-0.677	0.895
H8	-1.052	-0.677	-0.895

	C1	C2	F3	F4	H5	H6	H7	H8
C1		1.5148	1.3898	2.3488	1.0928	1.0928	2.1642	2.1642
C2	1.5148		2.3488	1.3898	2.1642	2.1642	1.0928	1.0928
F3	1.3898	2.3488		3.5499	2.0203	2.0203	2.6363	2.6363
F4	2.3488	1.3898	3.5499		2.6363	2.6363	2.0203	2.0203
H5	1.0928	2.1642	2.0203	2.6363		1.7890	2.5021	3.0759
H6	1.0928	2.1642	2.0203	2.6363	1.7890		3.0759	2.5021
H7	2.1642	1.0928	2.6363	2.0203	2.5021	3.0759		1.7890
H8	2.1642	1.0928	2.6363	2.0203	3.0759	2.5021	1.7890

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	F4	107.847	C1	C2	H7	111.159
C1	C2	H8	111.159	C2	C1	F3	107.847
C2	C1	H5	111.159	C2	C1	H6	111.159
F3	C1	H5	108.340	F3	C1	H6	108.340
F4	C2	H7	108.340	F4	C2	H8	108.340
H5	C1	H6	109.888	H7	C2	H8	109.888

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

using model chemistry: CISD/daug-cc-pVDZ

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

using model chemistry: CISD/daug-cc-pVDZ

States and conformations

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