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	hartrees
Energy at 0K	-10360.723063
Energy at 298.15K
HF Energy	-10360.723063
Nuclear repulsion energy	1456.871636

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	1600	1577	0.00	23.85	0.17	0.29
2	A_g	254	251	0.00	14.30	0.19	0.32
3	A_g	139	137	0.00	4.77	0.71	0.83
4	A_u	58	57	0.00	0.00	0.00	0.00
5	B_1u	596	587	37.80	0.00	0.00	0.00
6	B_1u	179	177	0.10	0.00	0.00	0.00
7	B_2g	500	493	0.00	2.27	0.75	0.86
8	B_2u	725	715	167.03	0.00	0.00	0.00
9	B_2u	115	113	0.43	0.00	0.00	0.00
10	B_3g	826	815	0.00	5.36	0.75	0.86
11	B_3g	208	205	0.00	3.57	0.75	0.86
12	B_3u	246	242	4.54	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.673
C2	0.000	-0.673
Br3	1.621	1.702
Br4	-1.621	1.702
Br5	-1.621	-1.702
Br6	1.621	-1.702

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3469	1.9196	1.9196	2.8758	2.8758
C2	1.3469		2.8758	2.8758	1.9196	1.9196
Br3	1.9196	2.8758		3.2414	4.7007	3.4045
Br4	1.9196	2.8758	3.2414		3.4045	4.7007
Br5	2.8758	1.9196	4.7007	3.4045		3.2414
Br6	2.8758	1.9196	3.4045	4.7007	3.2414

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.406	C1	C2	Br6	122.406
C2	C1	Br3	122.406	C2	C1	Br4	122.406
Br3	C1	Br4	115.187	Br5	C2	Br6	115.187

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: PBEPBE/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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Number	Element	Mulliken
1	C	-0.476
2	C	-0.476
3	Br	0.238
4	Br	0.238
5	Br	0.238
6	Br	0.238

<r²>	829.951
(<r²>)^1/2	28.809

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: PBEPBE/6-31G

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)