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	hartrees
Energy at 0K	-10362.339248
Energy at 298.15K
HF Energy	-10362.339248
Nuclear repulsion energy	1466.307688

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	1664	1593	12.01
2	A_g	263	251	78.49
3	A_g	144	138	78.91
4	A_u	61	58	78.92
5	B_1u	619	593	13.56
6	B_1u	186	178	57.87
7	B_2g	542	519	12.12
8	B_2u	755	723	13.11
9	B_2u	119	114	67.77
10	B_3g	866	829	12.22
11	B_3g	216	207	72.68
12	B_3u	258	248	12.76

Atom	y (Å)	z (Å)
C1	0.000	0.668
C2	0.000	-0.668
Br3	1.608	1.693
Br4	-1.608	1.693
Br5	-1.608	-1.693
Br6	1.608	-1.693

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3351	1.9077	1.9077	2.8567	2.8567
C2	1.3351		2.8567	2.8567	1.9077	1.9077
Br3	1.9077	2.8567		3.2166	4.6709	3.3868
Br4	1.9077	2.8567	3.2166		3.3868	4.6709
Br5	2.8567	1.9077	4.6709	3.3868		3.2166
Br6	2.8567	1.9077	3.3868	4.6709	3.2166

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.532	C1	C2	Br6	122.532
C2	C1	Br3	122.532	C2	C1	Br4	122.532
Br3	C1	Br4	114.936	Br5	C2	Br6	114.936

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	-0.494
2	C	-0.494
3	Br	0.247
4	Br	0.247
5	Br	0.247
6	Br	0.247

<r²>	820.164
(<r²>)^1/2	28.639

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)