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	hartrees
Energy at 0K	-1742.050909
Energy at 298.15K
HF Energy	-1741.649626
Nuclear repulsion energy	842.201613

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	1572	1572	0.00	42.15	0.32	0.48
2	A_g	270	270	0.00	12.02	0.12	0.22
3	A_g	145	145	0.00	2.36	0.61	0.76
4	A_u	57	57	0.00	0.00	0.00	0.00
5	B_1u	640	640	28.23	0.00	0.33	0.50
6	B_1u	189	189	0.12	0.00	0.00	0.00
7	B_2g	486	486	0.00	0.47	0.75	0.86
8	B_2u	770	770	109.24	0.00	0.00	0.00
9	B_2u	117	117	0.14	0.00	0.00	0.00
10	B_3g	885	885	0.00	2.45	0.75	0.86
11	B_3g	214	214	0.00	2.66	0.75	0.86
12	B_3u	248	248	2.13	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.670
C2	0.000	-0.670
Br3	1.583	1.689
Br4	-1.583	1.689
Br5	-1.583	-1.689
Br6	1.583	-1.689

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3406	1.8826	1.8826	2.8413	2.8413
C2	1.3406		2.8413	2.8413	1.8826	1.8826
Br3	1.8826	2.8413		3.1660	4.6300	3.3784
Br4	1.8826	2.8413	3.1660		3.3784	4.6300
Br5	2.8413	1.8826	4.6300	3.3784		3.1660
Br6	2.8413	1.8826	3.3784	4.6300	3.1660

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.767	C1	C2	Br6	122.767
C2	C1	Br3	122.767	C2	C1	Br4	122.767
Br3	C1	Br4	114.465	Br5	C2	Br6	114.465

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: B2PLYP/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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Number	Element	Mulliken
1	C	-0.109
2	C	-0.109
3	Br	0.055
4	Br	0.055
5	Br	0.055
6	Br	0.055

<r²>	591.827
(<r²>)^1/2	24.327

All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: B2PLYP/cc-pVTZ-PP

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)