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	hartrees
Energy at 0K	-128.456063
Energy at 298.15K
HF Energy	-128.141742
Nuclear repulsion energy	130.841496

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	1520	1467	0.00	10.44	0.36	0.53
2	A_g	245	237	0.00	12.27	0.27	0.42
3	A_g	143	138	0.00	5.23	0.66	0.80
4	A_u	52	50	0.00	0.00	0.75	0.86
5	B_1u	589	569	17.59	0.00	0.00	0.00
6	B_1u	187	180	0.31	0.00	0.00	0.00
7	B_2g	479	462	0.00	0.00	0.75	0.86
8	B_2u	717	692	85.74	0.00	0.00	0.00
9	B_2u	114	110	0.14	0.00	0.00	0.00
10	B_3g	847	818	0.00	13.56	0.75	0.86
11	B_3g	202	195	0.00	5.32	0.75	0.86
12	B_3u	244	236	5.72	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.687
C2	0.000	-0.687
Br3	1.639	1.758
Br4	-1.639	1.758
Br5	-1.639	-1.758
Br6	1.639	-1.758

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3734	1.9579	1.9579	2.9433	2.9433
C2	1.3734		2.9433	2.9433	1.9579	1.9579
Br3	1.9579	2.9433		3.2773	4.8070	3.5166
Br4	1.9579	2.9433	3.2773		3.5166	4.8070
Br5	2.9433	1.9579	4.8070	3.5166		3.2773
Br6	2.9433	1.9579	3.5166	4.8070	3.2773

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	123.183	C1	C2	Br6	123.183
C2	C1	Br3	123.183	C2	C1	Br4	123.183
Br3	C1	Br4	113.634	Br5	C2	Br6	113.634

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: MP2/SDD

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/SDD

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)