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	hartrees
Energy at 0K	-10370.891664
Energy at 298.15K
HF Energy	-10370.626249
Nuclear repulsion energy	1471.240451

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	1578	1512	0.00	40.67	0.28	0.44
2	A_g	270	258	0.00	11.23	0.16	0.27
3	A_g	147	141	0.00	3.22	0.66	0.80
4	A_u	57	54	0.00	0.00	0.00	0.00
5	B_1u	637	610	32.58	0.00	0.49	0.00
6	B_1u	191	183	0.15	0.00	0.52	0.68
7	B_2g	470	451	0.00	1.05	0.75	0.86
8	B_2u	770	737	120.99	0.00	0.50	0.66
9	B_2u	119	114	0.18	0.00	0.00	0.00
10	B_3g	890	852	0.00	0.96	0.75	0.86
11	B_3g	214	205	0.00	3.11	0.75	0.86
12	B_3u	249	238	2.64	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.677
C2	0.000	-0.677
Br3	1.593	1.699
Br4	-1.593	1.699
Br5	-1.593	-1.699
Br6	1.593	-1.699

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3536	1.8925	1.8925	2.8603	2.8603
C2	1.3536		2.8603	2.8603	1.8925	1.8925
Br3	1.8925	2.8603		3.1853	4.6577	3.3982
Br4	1.8925	2.8603	3.1853		3.3982	4.6577
Br5	2.8603	1.8925	4.6577	3.3982		3.1853
Br6	2.8603	1.8925	3.3982	4.6577	3.1853

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.695	C1	C2	Br6	122.695
C2	C1	Br3	122.695	C2	C1	Br4	122.695
Br3	C1	Br4	114.609	Br5	C2	Br6	114.609

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: B2PLYP/cc-pVDZ

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	-0.149
2	C	-0.149
3	Br	0.074
4	Br	0.074
5	Br	0.074
6	Br	0.074

<r²>	815.708
(<r²>)^1/2	28.561

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: B2PLYP/cc-pVDZ

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)