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	hartrees
Energy at 0K	-10365.868707
Energy at 298.15K
HF Energy	-10365.216763
Nuclear repulsion energy	1479.816612

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	1706	1573	12.01
2	A_g	284	262	78.33
3	A_g	156	144	78.89
4	A_u	60	55	78.92
5	B_1u	676	623	13.52
6	B_1u	202	186	58.57
7	B_2g	534	492	12.12
8	B_2u	825	760	13.08
9	B_2u	126	117	68.79
10	B_3g	960	885	12.28
11	B_3g	225	208	70.86
12	B_3u	271	249	12.76

Atom	y (Å)	z (Å)
C1	0.000	0.670
C2	0.000	-0.670
Br3	1.580	1.693
Br4	-1.580	1.693
Br5	-1.580	-1.693
Br6	1.580	-1.693

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3395	1.8825	1.8825	2.8424	2.8424
C2	1.3395		2.8424	2.8424	1.8825	1.8825
Br3	1.8825	2.8424		3.1604	4.6316	3.3858
Br4	1.8825	2.8424	3.1604		3.3858	4.6316
Br5	2.8424	1.8825	4.6316	3.3858		3.1604
Br6	2.8424	1.8825	3.3858	4.6316	3.1604

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.922	C1	C2	Br6	122.922
C2	C1	Br3	122.922	C2	C1	Br4	122.922
Br3	C1	Br4	114.157	Br5	C2	Br6	114.157

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: CISD/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 C2Br4 (tetrabromoethene)

using model chemistry: CISD/cc-pVDZ

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)