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	hartrees
Energy at 0K	-10372.460811
Energy at 298.15K
HF Energy	-10372.460811
Nuclear repulsion energy	1476.587668

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	1566	1509	0.00	74.78	0.29	0.45
2	A_g	266	256	0.00	12.24	0.18	0.30
3	A_g	143	138	0.00	2.95	0.64	0.78
4	A_u	56	54	0.00	0.00	0.00	0.00
5	B_1u	628	605	36.26	0.00	0.00	0.00
6	B_1u	187	180	0.18	0.00	0.00	0.00
7	B_2g	481	463	0.00	0.14	0.75	0.86
8	B_2u	749	721	145.44	0.00	0.00	0.00
9	B_2u	115	110	0.18	0.00	0.00	0.00
10	B_3g	866	834	0.00	2.00	0.75	0.86
11	B_3g	211	203	0.00	3.43	0.75	0.86
12	B_3u	249	240	3.05	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.671
C2	0.000	-0.671
Br3	1.590	1.689
Br4	-1.590	1.689
Br5	-1.590	-1.689
Br6	1.590	-1.689

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3419	1.8884	1.8884	2.8459	2.8459
C2	1.3419		2.8459	2.8459	1.8884	1.8884
Br3	1.8884	2.8459		3.1808	4.6400	3.3782
Br4	1.8884	2.8459	3.1808		3.3782	4.6400
Br5	2.8459	1.8884	4.6400	3.3782		3.1808
Br6	2.8459	1.8884	3.3782	4.6400	3.1808

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.627	C1	C2	Br6	122.627
C2	C1	Br3	122.627	C2	C1	Br4	122.627
Br3	C1	Br4	114.746	Br5	C2	Br6	114.746

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: TPSSh/TZVP

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	-0.018
2	C	-0.018
3	Br	0.009
4	Br	0.009
5	Br	0.009
6	Br	0.009

<r²>	810.000
(<r²>)^1/2	28.460

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: TPSSh/TZVP

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)