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	hartrees
Energy at 0K	-10361.066445
Energy at 298.15K
HF Energy	-10360.822133
Nuclear repulsion energy	1481.505484

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	1597	1521	0.00	64.63	0.30	0.46
2	A_g	272	260	0.00	12.00	0.13	0.23
3	A_g	148	141	0.00	1.96	0.64	0.78
4	A_u	74	71	0.00	0.00	0.00	0.00
5	B_1u	645	614	29.98	0.00	0.62	0.77
6	B_1u	197	188	0.22	0.00	0.63	0.78
7	B_2g	1007	959	0.00	0.13	0.75	0.86
8	B_2u	769	732	115.71	0.00	0.00	0.00
9	B_2u	120	114	0.18	0.00	0.00	0.00
10	B_3g	911	868	0.00	1.15	0.75	0.86
11	B_3g	222	211	0.00	2.81	0.75	0.86
12	B_3u	343	326	1.71	0.00	0.75	0.86

Atom	y (Å)	z (Å)
C1	0.000	0.672
C2	0.000	-0.672
Br3	1.581	1.688
Br4	-1.581	1.688
Br5	-1.581	-1.688
Br6	1.581	-1.688

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3447	1.8791	1.8791	2.8411	2.8411
C2	1.3447		2.8411	2.8411	1.8791	1.8791
Br3	1.8791	2.8411		3.1615	4.6257	3.3767
Br4	1.8791	2.8411	3.1615		3.3767	4.6257
Br5	2.8411	1.8791	4.6257	3.3767		3.1615
Br6	2.8411	1.8791	3.3767	4.6257	3.1615

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.729	C1	C2	Br6	122.729
C2	C1	Br3	122.729	C2	C1	Br4	122.729
Br3	C1	Br4	114.541	Br5	C2	Br6	114.541

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: B2PLYP/6-31+G**

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	-0.057
2	C	-0.057
3	Br	0.029
4	Br	0.029
5	Br	0.029
6	Br	0.029

<r²>	806.269
(<r²>)^1/2	28.395

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: B2PLYP/6-31+G**

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)