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	hartrees
Energy at 0K	-1742.107717
Energy at 298.15K
HF Energy	-1741.649682
Nuclear repulsion energy	842.929425

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	1577	1577	0.00	42.31	0.31	0.48
2	A_g	270	270	0.00	11.93	0.12	0.22
3	A_g	145	145	0.00	2.35	0.61	0.76
4	A_u	57	57	0.00	0.00	0.00	0.00
5	B_1u	641	641	27.98	0.00	0.00	0.00
6	B_1u	190	190	0.12	0.00	0.00	0.00
7	B_2g	492	492	0.00	0.45	0.75	0.86
8	B_2u	771	771	108.54	0.00	0.00	0.00
9	B_2u	117	117	0.14	0.00	0.00	0.00
10	B_3g	886	886	0.00	2.39	0.75	0.86
11	B_3g	214	214	0.00	2.63	0.75	0.86
12	B_3u	250	250	2.14	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.669
C2	0.000	-0.669
Br3	1.582	1.688
Br4	-1.582	1.688
Br5	-1.582	-1.688
Br6	1.582	-1.688

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3389	1.8811	1.8811	2.8386	2.8386
C2	1.3389		2.8386	2.8386	1.8811	1.8811
Br3	1.8811	2.8386		3.1634	4.6260	3.3754
Br4	1.8811	2.8386	3.1634		3.3754	4.6260
Br5	2.8386	1.8811	4.6260	3.3754		3.1634
Br6	2.8386	1.8811	3.3754	4.6260	3.1634

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.773	C1	C2	Br6	122.773
C2	C1	Br3	122.773	C2	C1	Br4	122.773
Br3	C1	Br4	114.454	Br5	C2	Br6	114.454

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: B2PLYP=FULLultrafine/cc-pVTZ-PP

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: B2PLYP=FULLultrafine/cc-pVTZ-PP

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)