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	hartrees
Energy at 0K	-10356.938208
Energy at 298.15K
HF Energy	-10355.963705
Nuclear repulsion energy	1496.036384

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	1632	1546	12.02
2	A_g	285	270	78.17
3	A_g	153	145	78.90
4	A_u	60	57	78.92
5	B_1u	668	633	13.63
6	B_1u	199	189	56.63
7	B_2g	509	482	12.13
8	B_2u	838	794	13.07
9	B_2u	126	119	68.86
10	B_3g	958	907	12.32
11	B_3g	223	211	69.57
12	B_3u	259	245	12.76

Atom	y (Å)	z (Å)
C1	0.000	0.672
C2	0.000	-0.672
Br3	1.568	1.669
Br4	-1.568	1.669
Br5	-1.568	-1.669
Br6	1.568	-1.669

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3430	1.8584	1.8584	2.8172	2.8172
C2	1.3430		2.8172	2.8172	1.8584	1.8584
Br3	1.8584	2.8172		3.1360	4.5801	3.3381
Br4	1.8584	2.8172	3.1360		3.3381	4.5801
Br5	2.8172	1.8584	4.5801	3.3381		3.1360
Br6	2.8172	1.8584	3.3381	4.5801	3.1360

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.465	C1	C2	Br6	122.465
C2	C1	Br3	122.465	C2	C1	Br4	122.465
Br3	C1	Br4	115.071	Br5	C2	Br6	115.071

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: QCISD/6-31G(2df,p)

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: QCISD/6-31G(2df,p)

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)