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	hartrees
Energy at 0K	-10363.698560
Energy at 298.15K
HF Energy	-10363.698560
Nuclear repulsion energy	1473.229200

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	1687	1609	0.00	29.46	0.20	0.34
2	A_g	266	254	0.00	13.01	0.20	0.33
3	A_g	142	136	0.00	4.53	0.70	0.82
4	A_u	62	59	0.00	0.00	0.00	0.00
5	B_1u	629	600	30.77	0.00	0.00	0.00
6	B_1u	186	178	0.08	0.00	0.00	0.00
7	B_2g	553	527	0.00	2.45	0.75	0.86
8	B_2u	772	736	133.57	0.00	0.00	0.00
9	B_2u	117	112	0.40	0.00	0.00	0.00
10	B_3g	877	836	0.00	7.19	0.75	0.86
11	B_3g	219	209	0.00	4.06	0.75	0.86
12	B_3u	261	249	3.96	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.665
C2	0.000	-0.665
Br3	1.602	1.684
Br4	-1.602	1.684
Br5	-1.602	-1.684
Br6	1.602	-1.684

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3305	1.8986	1.8986	2.8434	2.8434
C2	1.3305		2.8434	2.8434	1.8986	1.8986
Br3	1.8986	2.8434		3.2047	4.6486	3.3674
Br4	1.8986	2.8434	3.2047		3.3674	4.6486
Br5	2.8434	1.8986	4.6486	3.3674		3.2047
Br6	2.8434	1.8986	3.3674	4.6486	3.2047

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.440	C1	C2	Br6	122.440
C2	C1	Br3	122.440	C2	C1	Br4	122.440
Br3	C1	Br4	115.120	Br5	C2	Br6	115.120

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: B1B95/6-31G

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	-0.508
2	C	-0.508
3	Br	0.254
4	Br	0.254
5	Br	0.254
6	Br	0.254

<r²>	812.812
(<r²>)^1/2	28.510

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: B1B95/6-31G

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)