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	hartrees
Energy at 0K	-1738.693825
Energy at 298.15K
HF Energy	-1737.728836
Nuclear repulsion energy	851.534292

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	1724	1724	12.01
2	A_g	289	289	78.30
3	A_g	155	155	78.89
4	A_u	62	62	78.92
5	B_1u	692	692	13.55
6	B_1u	202	202	58.12
7	B_2g	557	557	12.12
8	B_2u	846	846	13.07
9	B_2u	126	126	68.84
10	B_3g	978	978	12.29
11	B_3g	229	229	70.35
12	B_3u	273	273	12.76

Atom	y (Å)	z (Å)
C1	0.000	0.661
C2	0.000	-0.661
Br3	1.563	1.674
Br4	-1.563	1.674
Br5	-1.563	-1.674
Br6	1.563	-1.674

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3221	1.8624	1.8624	2.8096	2.8096
C2	1.3221		2.8096	2.8096	1.8624	1.8624
Br3	1.8624	2.8096		3.1262	4.5800	3.3472
Br4	1.8624	2.8096	3.1262		3.3472	4.5800
Br5	2.8096	1.8624	4.5800	3.3472		3.1262
Br6	2.8096	1.8624	3.3472	4.5800	3.1262

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.934	C1	C2	Br6	122.934
C2	C1	Br3	122.934	C2	C1	Br4	122.934
Br3	C1	Br4	114.131	Br5	C2	Br6	114.131

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: CISD/cc-pVTZ-PP

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: CISD/cc-pVTZ-PP

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)