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	hartrees
Energy at 0K	-10368.160991
Energy at 298.15K
HF Energy	-10368.160991
Nuclear repulsion energy	1471.516316

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	1545	1514	0.00	43.30	0.30	0.46
2	A_g	259	254	0.00	13.21	0.14	0.24
3	A_g	148	145	0.00	2.64	0.65	0.79
4	A_u	56	55	0.00	0.00	0.00	0.00
5	B_1u	613	601	39.41	0.00	0.00	0.00
6	B_1u	189	186	0.19	0.00	0.00	0.00
7	B_2g	460	451	0.00	1.25	0.75	0.86
8	B_2u	713	699	151.72	0.00	0.00	0.00
9	B_2u	120	118	0.20	0.00	0.00	0.00
10	B_3g	830	814	0.00	1.21	0.75	0.86
11	B_3g	208	204	0.00	2.70	0.75	0.86
12	B_3u	239	234	2.02	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.676
C2	0.000	-0.676
Br3	1.595	1.696
Br4	-1.595	1.696
Br5	-1.595	-1.696
Br6	1.595	-1.696

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3527	1.8929	1.8929	2.8587	2.8587
C2	1.3527		2.8587	2.8587	1.8929	1.8929
Br3	1.8929	2.8587		3.1895	4.6562	3.3923
Br4	1.8929	2.8587	3.1895		3.3923	4.6562
Br5	2.8587	1.8929	4.6562	3.3923		3.1895
Br6	2.8587	1.8929	3.3923	4.6562	3.1895

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.598	C1	C2	Br6	122.598
C2	C1	Br3	122.598	C2	C1	Br4	122.598
Br3	C1	Br4	114.805	Br5	C2	Br6	114.805

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: B97D3/6-31G*

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	0.007
2	C	0.007
3	Br	-0.003
4	Br	-0.003
5	Br	-0.003
6	Br	-0.003

<r²>	814.294
(<r²>)^1/2	28.536

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: B97D3/6-31G*

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)