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	hartrees
Energy at 0K	-10362.997077
Energy at 298.15K
HF Energy	-10362.997077
Nuclear repulsion energy	1459.189180

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	1522	1510	0.00	37.79	0.31	0.48
2	A_g	252	250	0.00	14.14	0.13	0.24
3	A_g	143	142	0.00	2.80	0.64	0.78
4	A_u	55	55	0.00	0.00	0.00	0.00
5	B_1u	593	588	38.59	0.00	0.00	0.00
6	B_1u	183	182	0.14	0.00	0.00	0.00
7	B_2g	451	448	0.00	1.23	0.75	0.86
8	B_2u	695	690	147.56	0.00	0.00	0.00
9	B_2u	117	116	0.19	0.00	0.00	0.00
10	B_3g	811	804	0.00	2.17	0.75	0.86
11	B_3g	202	201	0.00	2.96	0.75	0.86
12	B_3u	234	232	1.82	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.677
C2	0.000	-0.677
Br3	1.609	1.710
Br4	-1.609	1.710
Br5	-1.609	-1.710
Br6	1.609	-1.710

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3547	1.9115	1.9115	2.8788	2.8788
C2	1.3547		2.8788	2.8788	1.9115	1.9115
Br3	1.9115	2.8788		3.2170	4.6955	3.4203
Br4	1.9115	2.8788	3.2170		3.4203	4.6955
Br5	2.8788	1.9115	4.6955	3.4203		3.2170
Br6	2.8788	1.9115	3.4203	4.6955	3.2170

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.705	C1	C2	Br6	122.705
C2	C1	Br3	122.705	C2	C1	Br4	122.705
Br3	C1	Br4	114.591	Br5	C2	Br6	114.591

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: BLYP/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	0.020
2	C	0.020
3	Br	-0.010
4	Br	-0.010
5	Br	-0.010
6	Br	-0.010

<r²>	827.618
(<r²>)^1/2	28.768

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: BLYP/6-31G**

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)