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	hartrees
Energy at 0K	-10355.984928
Energy at 298.15K
HF Energy	-10355.233320
Nuclear repulsion energy	1473.236438

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	1643	1551	12.01
2	A_g	269	254	78.40
3	A_g	153	144	78.90
4	A_u	59	55	78.92
5	B_1u	641	605	13.50
6	B_1u	195	185	59.02
7	B_2g	482	455	12.12
8	B_2u	776	732	13.08
9	B_2u	126	119	68.78
10	B_3g	909	858	12.26
11	B_3g	216	204	71.56
12	B_3u	249	235	12.76

Atom	y (Å)	z (Å)
C1	0.000	0.672
C2	0.000	-0.672
Br3	1.592	1.695
Br4	-1.592	1.695
Br5	-1.592	-1.695
Br6	1.592	-1.695

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3432	1.8926	1.8926	2.8524	2.8524
C2	1.3432		2.8524	2.8524	1.8926	1.8926
Br3	1.8926	2.8524		3.1834	4.6511	3.3909
Br4	1.8926	2.8524	3.1834		3.3909	4.6511
Br5	2.8524	1.8926	4.6511	3.3909		3.1834
Br6	2.8524	1.8926	3.3909	4.6511	3.1834

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.752	C1	C2	Br6	122.752
C2	C1	Br3	122.752	C2	C1	Br4	122.752
Br3	C1	Br4	114.497	Br5	C2	Br6	114.497

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: CCSD/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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All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: CCSD/6-31G*

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)