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	hartrees
Energy at 0K	-10377.913277
Energy at 298.15K
HF Energy	-10377.913277
Nuclear repulsion energy	1466.003049

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	1519	1519	0.00	54.23	0.27	0.43
2	A_g	257	257	0.00	13.46	0.16	0.28
3	A_g	146	146	0.00	3.30	0.66	0.80
4	A_u	52	52	0.00	0.00	0.00	0.00
5	B_1u	610	610	39.50	0.00	0.00	0.00
6	B_1u	187	187	0.28	0.00	0.00	0.00
7	B_2g	451	451	0.00	0.59	0.75	0.86
8	B_2u	704	704	163.69	0.00	0.00	0.00
9	B_2u	117	117	0.19	0.00	0.00	0.00
10	B_3g	825	825	0.00	2.51	0.75	0.86
11	B_3g	204	204	0.00	2.99	0.75	0.86
12	B_3u	242	242	3.43	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.676
C2	0.000	-0.676
Br3	1.598	1.706
Br4	-1.598	1.706
Br5	-1.598	-1.706
Br6	1.598	-1.706

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3517	1.9010	1.9010	2.8679	2.8679
C2	1.3517		2.8679	2.8679	1.9010	1.9010
Br3	1.9010	2.8679		3.1960	4.6744	3.4111
Br4	1.9010	2.8679	3.1960		3.4111	4.6744
Br5	2.8679	1.9010	4.6744	3.4111		3.1960
Br6	2.8679	1.9010	3.4111	4.6744	3.1960

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.797	C1	C2	Br6	122.797
C2	C1	Br3	122.797	C2	C1	Br4	122.797
Br3	C1	Br4	114.406	Br5	C2	Br6	114.406

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: B97D3/6-311G*

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	-0.206
2	C	-0.206
3	Br	0.103
4	Br	0.103
5	Br	0.103
6	Br	0.103

<r²>	820.986
(<r²>)^1/2	28.653

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: B97D3/6-311G*

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)