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	hartrees
Energy at 0K	-10361.969963
Energy at 298.15K
HF Energy	-10361.969963
Nuclear repulsion energy	1493.423505

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	1535	1519	0.00	56.52	0.28	0.44
2	A_g	276	273	0.00	12.12	0.10	0.18
3	A_g	145	144	0.00	2.25	0.58	0.73
4	A_u	58	58	0.00	0.00	0.00	0.00
5	B_1u	638	632	31.05	0.00	0.00	0.00
6	B_1u	190	188	0.06	0.00	0.00	0.00
7	B_2g	477	472	0.00	0.47	0.75	0.86
8	B_2u	784	776	122.55	0.00	0.00	0.00
9	B_2u	117	116	0.17	0.00	0.00	0.00
10	B_3g	884	875	0.00	0.02	0.75	0.86
11	B_3g	215	213	0.00	1.94	0.75	0.86
12	B_3u	247	245	1.49	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.678
C2	0.000	-0.678
Br3	1.573	1.669
Br4	-1.573	1.669
Br5	-1.573	-1.669
Br6	1.573	-1.669

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3564	1.8593	1.8593	2.8258	2.8258
C2	1.3564		2.8258	2.8258	1.8593	1.8593
Br3	1.8593	2.8258		3.1464	4.5875	3.3385
Br4	1.8593	2.8258	3.1464		3.3385	4.5875
Br5	2.8258	1.8593	4.5875	3.3385		3.1464
Br6	2.8258	1.8593	3.3385	4.5875	3.1464

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.209	C1	C2	Br6	122.209
C2	C1	Br3	122.209	C2	C1	Br4	122.209
Br3	C1	Br4	115.581	Br5	C2	Br6	115.581

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: PBEPBE/6-31G(2df,p)

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	-0.259
2	C	-0.259
3	Br	0.130
4	Br	0.130
5	Br	0.130
6	Br	0.130

<r²>	792.507
(<r²>)^1/2	28.152

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: PBEPBE/6-31G(2df,p)

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)