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	hartrees
Energy at 0K	-10373.081790
Energy at 298.15K
HF Energy	-10373.081790
Nuclear repulsion energy	1458.726933

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	1501	1496	0.00	49.31	0.31	0.47
2	A_g	252	251	0.00	14.74	0.13	0.22
3	A_g	140	139	0.00	2.70	0.62	0.76
4	A_u	52	52	0.00	0.00	0.00	0.00
5	B_1u	595	593	36.88	0.00	0.00	0.00
6	B_1u	181	180	0.13	0.00	0.00	0.00
7	B_2g	460	459	0.00	0.16	0.75	0.86
8	B_2u	690	688	142.10	0.00	0.00	0.00
9	B_2u	113	112	0.16	0.00	0.00	0.00
10	B_3g	806	803	0.00	4.22	0.75	0.86
11	B_3g	200	200	0.00	2.95	0.75	0.86
12	B_3u	238	237	1.97	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.674
C2	0.000	-0.674
Br3	1.605	1.715
Br4	-1.605	1.715
Br5	-1.605	-1.715
Br6	1.605	-1.715

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3480	1.9132	1.9132	2.8781	2.8781
C2	1.3480		2.8781	2.8781	1.9132	1.9132
Br3	1.9132	2.8781		3.2108	4.6979	3.4294
Br4	1.9132	2.8781	3.2108		3.4294	4.6979
Br5	2.8781	1.9132	4.6979	3.4294		3.2108
Br6	2.8781	1.9132	3.4294	4.6979	3.2108

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.952	C1	C2	Br6	122.952
C2	C1	Br3	122.952	C2	C1	Br4	122.952
Br3	C1	Br4	114.096	Br5	C2	Br6	114.096

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: BLYP/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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Number	Element	Mulliken
1	C	-0.076
2	C	-0.076
3	Br	0.038
4	Br	0.038
5	Br	0.038
6	Br	0.038

<r²>	829.404
(<r²>)^1/2	28.799

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: BLYP/cc-pVTZ

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)