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	hartrees
Energy at 0K	-10372.787237
Energy at 298.15K
HF Energy	-10372.787237
Nuclear repulsion energy	1474.713967

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	1574	1522	0.00	71.36	0.31	0.47
2	A_g	266	257	0.00	13.69	0.10	0.18
3	A_g	146	141	0.00	2.00	0.52	0.69
4	A_u	55	54	0.00	0.00	0.00	0.00
5	B_1u	631	610	31.45	0.00	0.00	0.00
6	B_1u	189	183	0.13	0.00	0.00	0.00
7	B_2g	498	482	0.00	0.41	0.75	0.86
8	B_2u	744	719	116.67	0.00	0.00	0.00
9	B_2u	118	114	0.14	0.00	0.00	0.00
10	B_3g	861	833	0.00	4.05	0.75	0.86
11	B_3g	211	204	0.00	2.33	0.75	0.86
12	B_3u	250	242	1.40	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.668
C2	0.000	-0.668
Br3	1.587	1.697
Br4	-1.587	1.697
Br5	-1.587	-1.697
Br6	1.587	-1.697

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3366	1.8914	1.8914	2.8485	2.8485
C2	1.3366		2.8485	2.8485	1.8914	1.8914
Br3	1.8914	2.8485		3.1743	4.6472	3.3941
Br4	1.8914	2.8485	3.1743		3.3941	4.6472
Br5	2.8485	1.8914	4.6472	3.3941		3.1743
Br6	2.8485	1.8914	3.3941	4.6472	3.1743

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.950	C1	C2	Br6	122.950
C2	C1	Br3	122.950	C2	C1	Br4	122.950
Br3	C1	Br4	114.099	Br5	C2	Br6	114.099

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: B3LYP/6-311+G(3df,2p)

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	0.009
2	C	0.009
3	Br	-0.005
4	Br	-0.005
5	Br	-0.005
6	Br	-0.005

<r²>	812.775
(<r²>)^1/2	28.509

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: B3LYP/6-311+G(3df,2p)

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)