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	hartrees
Energy at 0K	-10371.038175
Energy at 298.15K
HF Energy	-10371.038175
Nuclear repulsion energy	1470.571408

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	1521	1506	0.00	57.33	0.26	0.41
2	A_g	263	260	0.00	12.50	0.16	0.28
3	A_g	143	142	0.00	3.26	0.66	0.80
4	A_u	53	53	0.00	0.00	0.00	0.00
5	B_1u	619	612	35.89	0.00	0.00	0.00
6	B_1u	186	184	0.23	0.00	0.00	0.00
7	B_2g	456	451	0.00	0.43	0.75	0.86
8	B_2u	733	725	158.13	0.00	0.00	0.00
9	B_2u	114	113	0.17	0.00	0.00	0.00
10	B_3g	844	836	0.00	1.08	0.75	0.86
11	B_3g	206	204	0.00	2.64	0.75	0.86
12	B_3u	244	241	4.05	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.677
C2	0.000	-0.677
Br3	1.595	1.699
Br4	-1.595	1.699
Br5	-1.595	-1.699
Br6	1.595	-1.699

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3540	1.8937	1.8937	2.8611	2.8611
C2	1.3540		2.8611	2.8611	1.8937	1.8937
Br3	1.8937	2.8611		3.1890	4.6595	3.3973
Br4	1.8937	2.8611	3.1890		3.3973	4.6595
Br5	2.8611	1.8937	4.6595	3.3973		3.1890
Br6	2.8611	1.8937	3.3973	4.6595	3.1890

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.649	C1	C2	Br6	122.649
C2	C1	Br3	122.649	C2	C1	Br4	122.649
Br3	C1	Br4	114.702	Br5	C2	Br6	114.702

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: PBEPBE/6-311G*

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	-0.239
2	C	-0.239
3	Br	0.119
4	Br	0.119
5	Br	0.119
6	Br	0.119

<r²>	816.393
(<r²>)^1/2	28.573

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: PBEPBE/6-311G*

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)