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	hartrees
Energy at 0K	-10362.898914
Energy at 298.15K
HF Energy	-10362.898914
Nuclear repulsion energy	1484.662869

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	1611	1541	12.01
2	A_g	273	261	78.40
3	A_g	150	144	78.90
4	A_u	60	57	78.92
5	B_1u	644	616	13.53
6	B_1u	195	186	58.43
7	B_2g	505	483	12.12
8	B_2u	773	739	13.08
9	B_2u	122	117	68.64
10	B_3g	890	851	12.25
11	B_3g	218	208	71.69
12	B_3u	252	241	12.76

Atom	y (Å)	z (Å)
C1	0.000	0.672
C2	0.000	-0.672
Br3	1.581	1.681
Br4	-1.581	1.681
Br5	-1.581	-1.681
Br6	1.581	-1.681

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3432	1.8755	1.8755	2.8343	2.8343
C2	1.3432		2.8343	2.8343	1.8755	1.8755
Br3	1.8755	2.8343		3.1615	4.6150	3.3619
Br4	1.8755	2.8343	3.1615		3.3619	4.6150
Br5	2.8343	1.8755	4.6150	3.3619		3.1615
Br6	2.8343	1.8755	3.3619	4.6150	3.1615

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.559	C1	C2	Br6	122.559
C2	C1	Br3	122.559	C2	C1	Br4	122.559
Br3	C1	Br4	114.881	Br5	C2	Br6	114.881

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: B3PW91/6-31G*

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	-0.015
2	C	-0.015
3	Br	0.007
4	Br	0.007
5	Br	0.007
6	Br	0.007

<r²>	801.166
(<r²>)^1/2	28.305

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: B3PW91/6-31G*

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)