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	hartrees
Energy at 0K	-10365.195913
Energy at 298.15K
HF Energy	-10365.195913
Nuclear repulsion energy	1485.781809

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	1753	1593	0.00	121.54	0.39	0.57
2	A_g	288	262	0.00	14.87	0.11	0.19
3	A_g	160	145	0.00	2.06	0.48	0.65
4	A_u	62	56	0.00	0.00	0.00	0.00
5	B_1u	692	628	27.09	0.00	0.00	0.00
6	B_1u	206	188	0.07	0.00	0.00	0.00
7	B_2g	578	525	0.00	1.71	0.75	0.86
8	B_2u	836	759	81.83	0.00	0.01	0.00
9	B_2u	130	118	0.18	0.00	0.00	0.00
10	B_3g	981	891	0.00	13.58	0.75	0.86
11	B_3g	231	210	0.00	3.10	0.75	0.86
12	B_3u	280	255	0.66	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.659
C2	0.000	-0.659
Br3	1.571	1.689
Br4	-1.571	1.689
Br5	-1.571	-1.689
Br6	1.571	-1.689

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3175	1.8789	1.8789	2.8249	2.8249
C2	1.3175		2.8249	2.8249	1.8789	1.8789
Br3	1.8789	2.8249		3.1427	4.6136	3.3776
Br4	1.8789	2.8249	3.1427		3.3776	4.6136
Br5	2.8249	1.8789	4.6136	3.3776		3.1427
Br6	2.8249	1.8789	3.3776	4.6136	3.1427

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	123.246	C1	C2	Br6	123.246
C2	C1	Br3	123.246	C2	C1	Br4	123.246
Br3	C1	Br4	113.509	Br5	C2	Br6	113.509

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: HF/6-311+G(3df,2p)

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	0.100
2	C	0.100
3	Br	-0.050
4	Br	-0.050
5	Br	-0.050
6	Br	-0.050

<r²>	802.250
(<r²>)^1/2	28.324

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: HF/6-311+G(3df,2p)

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)