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	hartrees
Energy at 0K	-10363.248703
Energy at 298.15K
HF Energy	-10363.248703
Nuclear repulsion energy	1488.411812

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	1655	1567	0.00	56.95	0.33	0.49
2	A_g	278	263	0.00	10.67	0.14	0.25
3	A_g	156	148	0.00	2.36	0.63	0.77
4	A_u	61	58	0.00	0.00	0.00	0.00
5	B_1u	659	624	32.01	0.00	0.00	0.00
6	B_1u	201	190	0.14	0.00	0.00	0.00
7	B_2g	524	497	0.00	1.42	0.75	0.86
8	B_2u	790	748	118.15	0.00	0.00	0.00
9	B_2u	128	121	0.20	0.00	0.00	0.00
10	B_3g	914	865	0.00	0.71	0.75	0.86
11	B_3g	222	210	0.00	2.79	0.75	0.86
12	B_3u	256	242	1.51	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.669
C2	0.000	-0.669
Br3	1.578	1.675
Br4	-1.578	1.675
Br5	-1.578	-1.675
Br6	1.578	-1.675

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3378	1.8717	1.8717	2.8259	2.8259
C2	1.3378		2.8259	2.8259	1.8717	1.8717
Br3	1.8717	2.8259		3.1560	4.6030	3.3508
Br4	1.8717	2.8259	3.1560		3.3508	4.6030
Br5	2.8259	1.8717	4.6030	3.3508		3.1560
Br6	2.8259	1.8717	3.3508	4.6030	3.1560

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.532	C1	C2	Br6	122.532
C2	C1	Br3	122.532	C2	C1	Br4	122.532
Br3	C1	Br4	114.935	Br5	C2	Br6	114.935

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: M06-2X/6-31G*

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	-0.018
2	C	-0.018
3	Br	0.009
4	Br	0.009
5	Br	0.009
6	Br	0.009

<r²>	797.835
(<r²>)^1/2	28.246

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: M06-2X/6-31G*

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)