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	hartrees
Energy at 0K	-10361.569413
Energy at 298.15K
HF Energy	-10361.569413
Nuclear repulsion energy	1493.170833

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	1628	1555	0.00	95.04	0.29	0.45
2	A_g	281	268	0.00	11.21	0.13	0.22
3	A_g	150	143	0.00	1.91	0.63	0.78
4	A_u	76	73	0.00	0.00	0.00	0.00
5	B_1u	663	633	32.50	0.00	0.00	0.00
6	B_1u	200	191	0.25	0.00	0.00	0.00
7	B_2g	1032	986	0.00	0.06	0.75	0.86
8	B_2u	793	757	126.03	0.00	0.00	0.00
9	B_2u	120	115	0.19	0.00	0.00	0.00
10	B_3g	936	893	0.00	0.23	0.75	0.86
11	B_3g	227	216	0.00	2.37	0.75	0.86
12	B_3u	351	335	2.00	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.670
C2	0.000	-0.670
Br3	1.569	1.674
Br4	-1.569	1.674
Br5	-1.569	-1.674
Br6	1.569	-1.674

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3409	1.8628	1.8628	2.8214	2.8214
C2	1.3409		2.8214	2.8214	1.8628	1.8628
Br3	1.8628	2.8214		3.1384	4.5893	3.3485
Br4	1.8628	2.8214	3.1384		3.3485	4.5893
Br5	2.8214	1.8628	4.5893	3.3485		3.1384
Br6	2.8214	1.8628	3.3485	4.5893	3.1384

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.606	C1	C2	Br6	122.606
C2	C1	Br3	122.606	C2	C1	Br4	122.606
Br3	C1	Br4	114.787	Br5	C2	Br6	114.787

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: HSEh1PBE/6-31+G**

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	-0.061
2	C	-0.061
3	Br	0.031
4	Br	0.031
5	Br	0.031
6	Br	0.031

<r²>	793.922
(<r²>)^1/2	28.177

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: HSEh1PBE/6-31+G**

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)