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	hartrees
Energy at 0K	-10371.413797
Energy at 298.15K
HF Energy	-10370.946440
Nuclear repulsion energy	1481.696308

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	1575	1505	0.00	51.56	0.30	0.46
2	A_g	272	260	0.00	11.33	0.13	0.23
3	A_g	147	140	0.00	2.30	0.61	0.76
4	A_u	57	55	0.00	0.00	0.00	0.00
5	B_1u	644	615	29.00	0.00	0.00	0.00
6	B_1u	191	183	0.10	0.00	0.49	0.00
7	B_2g	504	482	0.00	0.23	0.75	0.86
8	B_2u	774	740	109.83	0.00	0.47	0.00
9	B_2u	118	113	0.15	0.00	0.00	0.00
10	B_3g	890	850	0.00	1.81	0.75	0.86
11	B_3g	216	206	0.00	2.62	0.75	0.86
12	B_3u	253	242	1.71	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.670
C2	0.000	-0.670
Br3	1.582	1.687
Br4	-1.582	1.687
Br5	-1.582	-1.687
Br6	1.582	-1.687

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3398	1.8804	1.8804	2.8382	2.8382
C2	1.3398		2.8382	2.8382	1.8804	1.8804
Br3	1.8804	2.8382		3.1639	4.6247	3.3731
Br4	1.8804	2.8382	3.1639		3.3731	4.6247
Br5	2.8382	1.8804	4.6247	3.3731		3.1639
Br6	2.8382	1.8804	3.3731	4.6247	3.1639

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.727	C1	C2	Br6	122.727
C2	C1	Br3	122.727	C2	C1	Br4	122.727
Br3	C1	Br4	114.546	Br5	C2	Br6	114.546

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: B2PLYP=FULLultrafine/cc-pVTZ

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	-0.056
2	C	-0.056
3	Br	0.028
4	Br	0.028
5	Br	0.028
6	Br	0.028

<r²>	805.457
(<r²>)^1/2	28.381

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: B2PLYP=FULLultrafine/cc-pVTZ

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)