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	hartrees
Energy at 0K	-10365.162484
Energy at 298.15K
HF Energy	-10365.162484
Nuclear repulsion energy	1481.752504

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	1757	1589	0.00	112.61	0.42	0.59
2	A_g	287	259	0.00	14.17	0.16	0.28
3	A_g	161	146	0.00	2.98	0.61	0.76
4	A_u	62	56	0.00	0.00	0.00	0.00
5	B_1u	688	622	29.64	0.00	0.00	0.00
6	B_1u	207	188	0.17	0.00	0.00	0.00
7	B_2g	573	518	0.00	2.98	0.75	0.86
8	B_2u	829	750	92.70	0.00	0.00	0.00
9	B_2u	131	118	0.21	0.00	0.00	0.00
10	B_3g	986	891	0.00	14.04	0.75	0.86
11	B_3g	230	208	0.00	4.54	0.75	0.86
12	B_3u	281	254	1.81	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.661
C2	0.000	-0.661
Br3	1.576	1.693
Br4	-1.576	1.693
Br5	-1.576	-1.693
Br6	1.576	-1.693

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3212	1.8840	1.8840	2.8326	2.8326
C2	1.3212		2.8326	2.8326	1.8840	1.8840
Br3	1.8840	2.8326		3.1519	4.6261	3.3861
Br4	1.8840	2.8326	3.1519		3.3861	4.6261
Br5	2.8326	1.8840	4.6261	3.3861		3.1519
Br6	2.8326	1.8840	3.3861	4.6261	3.1519

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	123.230	C1	C2	Br6	123.230
C2	C1	Br3	123.230	C2	C1	Br4	123.230
Br3	C1	Br4	113.540	Br5	C2	Br6	113.540

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: HF/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	-0.199
2	C	-0.199
3	Br	0.099
4	Br	0.099
5	Br	0.099
6	Br	0.099

<r²>	806.222
(<r²>)^1/2	28.394

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: HF/6-311G*

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)