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	hartrees
Energy at 0K	-10366.513581
Energy at 298.15K
HF Energy	-10365.547318
Nuclear repulsion energy	1495.060125

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	1720	1599	12.01
2	A_g	290	270	78.30
3	A_g	156	145	78.89
4	A_u	62	57	78.92
5	B_1u	693	644	13.55
6	B_1u	203	189	58.15
7	B_2g	563	523	12.12
8	B_2u	847	787	13.07
9	B_2u	127	118	68.87
10	B_3g	980	911	12.29
11	B_3g	230	214	70.42
12	B_3u	275	256	12.76

Atom	y (Å)	z (Å)
C1	0.000	0.662
C2	0.000	-0.662
Br3	1.565	1.674
Br4	-1.565	1.674
Br5	-1.565	-1.674
Br6	1.565	-1.674

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3231	1.8643	1.8643	2.8118	2.8118
C2	1.3231		2.8118	2.8118	1.8643	1.8643
Br3	1.8643	2.8118		3.1304	4.5840	3.3488
Br4	1.8643	2.8118	3.1304		3.3488	4.5840
Br5	2.8118	1.8643	4.5840	3.3488		3.1304
Br6	2.8118	1.8643	3.3488	4.5840	3.1304

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.907	C1	C2	Br6	122.907
C2	C1	Br3	122.907	C2	C1	Br4	122.907
Br3	C1	Br4	114.186	Br5	C2	Br6	114.186

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: CISD/cc-pVTZ

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

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)