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	hartrees
Energy at 0K	-10372.693516
Energy at 298.15K
HF Energy	-10372.693516
Nuclear repulsion energy	1484.869238

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	1587	1519	0.00	76.74	0.29	0.45
2	A_g	274	263	0.00	12.54	0.10	0.18
3	A_g	146	140	0.00	1.93	0.53	0.69
4	A_u	57	54	0.00	0.00	0.00	0.00
5	B_1u	648	620	30.72	0.00	0.00	0.00
6	B_1u	191	183	0.11	0.00	0.00	0.00
7	B_2g	499	478	0.00	0.41	0.75	0.86
8	B_2u	776	743	116.56	0.00	0.00	0.00
9	B_2u	117	112	0.14	0.00	0.00	0.00
10	B_3g	886	848	0.00	1.90	0.75	0.86
11	B_3g	215	206	0.00	1.99	0.75	0.86
12	B_3u	252	242	1.52	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.669
C2	0.000	-0.669
Br3	1.578	1.684
Br4	-1.578	1.684
Br5	-1.578	-1.684
Br6	1.578	-1.684

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3380	1.8760	1.8760	2.8329	2.8329
C2	1.3380		2.8329	2.8329	1.8760	1.8760
Br3	1.8760	2.8329		3.1556	4.6150	3.3676
Br4	1.8760	2.8329	3.1556		3.3676	4.6150
Br5	2.8329	1.8760	4.6150	3.3676		3.1556
Br6	2.8329	1.8760	3.3676	4.6150	3.1556

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.749	C1	C2	Br6	122.749
C2	C1	Br3	122.749	C2	C1	Br4	122.749
Br3	C1	Br4	114.502	Br5	C2	Br6	114.502

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: B3PW91/6-311+G(3df,2p)

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	0.072
2	C	0.072
3	Br	-0.036
4	Br	-0.036
5	Br	-0.036
6	Br	-0.036

<r²>	801.868
(<r²>)^1/2	28.317

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: B3PW91/6-311+G(3df,2p)

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)