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	hartrees
Energy at 0K	-149.456706
Energy at 298.15K	-149.452791
HF Energy	-149.242523
Nuclear repulsion energy	62.265529

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ_g	2141	2141	0.00
2	Σ_g	994	994	0.00
3	Σ_u	1579	1579	521.60
4	Π_g	397	397	0.00
4	Π_g	397	397	0.00
5	Π_u	166	166	12.69
5	Π_u	166	166	12.69

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.650
C2	0.000	0.000	-0.650
C3	0.000	0.000	1.991
C4	0.000	0.000	-1.991

	C1	C2	C3	C4
C1		1.3007	1.3410	2.6417
C2	1.3007		2.6417	1.3410
C3	1.3410	2.6417		3.9826
C4	2.6417	1.3410	3.9826

All results from a given calculation for C₄ (Carbon tetramer)

using model chemistry: CID/STO-3G

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 C4 (Carbon tetramer)

using model chemistry: CID/STO-3G

States and conformations

All results from a given calculation for C₄ (Carbon tetramer)