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	hartrees
Energy at 0K	-10367.992065
Energy at 298.15K
HF Energy	-10365.194300
Nuclear repulsion energy	1493.053418

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	1550	1461	0.00	19.81	0.20	0.33
2	A_g	283	267	0.00	9.12	0.12	0.21
3	A_g	151	142	0.00	1.60	0.56	0.71
4	A_u	58	55	0.00	0.00	0.75	0.86
5	B_1u	666	628	22.46	0.00	0.00	0.00
6	B_1u	197	186	0.11	0.00	0.00	0.00
7	B_2g	489	461	0.00	0.01	0.75	0.86
8	B_2u	823	776	94.05	0.00	0.00	0.00
9	B_2u	122	115	0.11	0.00	0.00	0.00
10	B_3g	913	861	0.00	0.19	0.75	0.86
11	B_3g	219	206	0.00	1.66	0.75	0.86
12	B_3u	250	236	1.54	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.674
C2	0.000	-0.674
Br3	1.571	1.672
Br4	-1.571	1.672
Br5	-1.571	-1.672
Br6	1.571	-1.672

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3486	1.8613	1.8613	2.8241	2.8241
C2	1.3486		2.8241	2.8241	1.8613	1.8613
Br3	1.8613	2.8241		3.1423	4.5892	3.3448
Br4	1.8613	2.8241	3.1423		3.3448	4.5892
Br5	2.8241	1.8613	4.5892	3.3448		3.1423
Br6	2.8241	1.8613	3.3448	4.5892	3.1423

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.426	C1	C2	Br6	122.426
C2	C1	Br3	122.426	C2	C1	Br4	122.426
Br3	C1	Br4	115.148	Br5	C2	Br6	115.148

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: MP2=FULL/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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All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: MP2=FULL/6-311+G(3df,2p)

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)