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	hartrees
Energy at 0K	-10253.618924
Energy at 298.15K
HF Energy	-10253.441360
Nuclear repulsion energy	1458.825910

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	1615	1408	0.00	17.59	0.27	0.43
2	A_g	294	257	0.00	8.24	0.24	0.39
3	A_g	152	133	0.00	2.66	0.68	0.81
4	A_u	64	56	0.00	0.00	0.00	0.00
5	B_1u	705	615	44.25	0.00	0.00	0.00
6	B_1u	204	178	0.52	0.00	0.00	0.00
7	B_2g	503	438	0.00	1.07	0.75	0.86
8	B_2u	916	798	87.79	0.00	0.00	0.00
9	B_2u	122	107	0.41	0.00	0.00	0.00
10	B_3g	1060	924	0.00	5.73	0.75	0.86
11	B_3g	234	204	0.00	3.31	0.75	0.86
12	B_3u	269	234	0.75	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.689
C2	0.000	-0.689
Br3	1.621	1.697
Br4	-1.621	1.697
Br5	-1.621	-1.697
Br6	1.621	-1.697

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3789	1.9087	1.9087	2.8851	2.8851
C2	1.3789		2.8851	2.8851	1.9087	1.9087
Br3	1.9087	2.8851		3.2419	4.6939	3.3946
Br4	1.9087	2.8851	3.2419		3.3946	4.6939
Br5	2.8851	1.9087	4.6939	3.3946		3.2419
Br6	2.8851	1.9087	3.3946	4.6939	3.2419

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	121.872	C1	C2	Br6	121.872
C2	C1	Br3	121.872	C2	C1	Br4	121.872
Br3	C1	Br4	116.256	Br5	C2	Br6	116.256

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: MP2/STO-3G

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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All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: MP2/STO-3G

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)