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	hartrees
Energy at 0K	-10355.987157
Energy at 298.15K
HF Energy	-10355.233220
Nuclear repulsion energy	1472.575717

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	1639	1543	12.01
2	A_g	269	253	78.39
3	A_g	153	144	78.90
4	A_u	59	55	78.92
5	B_1u	639	602	13.50
6	B_1u	195	184	58.99
7	B_2g	480	451	12.12
8	B_2u	773	728	13.08
9	B_2u	125	118	68.76
10	B_3g	905	852	12.26
11	B_3g	216	203	71.57
12	B_3u	248	234	12.76

Atom	y (Å)	z (Å)
C1	0.000	0.672
C2	0.000	-0.672
Br3	1.592	1.696
Br4	-1.592	1.696
Br5	-1.592	-1.696
Br6	1.592	-1.696

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3441	1.8934	1.8934	2.8538	2.8538
C2	1.3441		2.8538	2.8538	1.8934	1.8934
Br3	1.8934	2.8538		3.1850	4.6531	3.3923
Br4	1.8934	2.8538	3.1850		3.3923	4.6531
Br5	2.8538	1.8934	4.6531	3.3923		3.1850
Br6	2.8538	1.8934	3.3923	4.6531	3.1850

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.745	C1	C2	Br6	122.745
C2	C1	Br3	122.745	C2	C1	Br4	122.745
Br3	C1	Br4	114.511	Br5	C2	Br6	114.511

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: QCISD/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: QCISD/6-31G**

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)