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	hartrees
Energy at 0K	-10362.435304
Energy at 298.15K
HF Energy	-10362.435304
Nuclear repulsion energy	1439.774207

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)	Raman Act (Å⁴/u)	Dep P	Dep U
1	A_g	1574	1562	0.00	16.83	0.18	0.31
2	A_g	240	238	0.00	16.40	0.18	0.31
3	A_g	134	133	0.00	5.02	0.70	0.82
4	A_u	56	55	0.00	0.00	0.00	0.00
5	B_1u	566	562	41.11	0.00	0.00	0.00
6	B_1u	172	171	0.08	0.00	0.00	0.00
7	B_2g	479	475	0.00	2.46	0.75	0.86
8	B_2u	676	671	165.73	0.00	0.00	0.00
9	B_2u	110	109	0.44	0.00	0.00	0.00
10	B_3g	785	779	0.00	10.30	0.75	0.86
11	B_3g	199	197	0.00	4.38	0.75	0.86
12	B_3u	236	234	3.46	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.673
C2	0.000	-0.673
Br3	1.638	1.724
Br4	-1.638	1.724
Br5	-1.638	-1.724
Br6	1.638	-1.724

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3464	1.9465	1.9465	2.9038	2.9038
C2	1.3464		2.9038	2.9038	1.9465	1.9465
Br3	1.9465	2.9038		3.2764	4.7570	3.4488
Br4	1.9465	2.9038	3.2764		3.4488	4.7570
Br5	2.9038	1.9465	4.7570	3.4488		3.2764
Br6	2.9038	1.9465	3.4488	4.7570	3.2764

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.688	C1	C2	Br6	122.688
C2	C1	Br3	122.688	C2	C1	Br4	122.688
Br3	C1	Br4	114.625	Br5	C2	Br6	114.625

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: BLYP/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	-0.409
2	C	-0.409
3	Br	0.205
4	Br	0.205
5	Br	0.205
6	Br	0.205

<r²>	848.661
(<r²>)^1/2	29.132

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: BLYP/6-31G

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)