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	hartrees
Energy at 0K	-264.349620
Energy at 298.15K
HF Energy	-263.368961
Nuclear repulsion energy	121.219403

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ_g	2107	2051
2	Σ_g	738	718
3	Σ_u	2346	2283
4	Σ_u	1519	1479
5	Π_g	548	534
5	Π_g	548	534
6	Π_u	486	473
6	Π_u	486	473
7	Π_u	52i	50i
7	Π_u	52i	50i

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.000
C2	0.000	0.000	1.282
C3	0.000	0.000	-1.282
O4	0.000	0.000	2.463
O5	0.000	0.000	-2.463

	C1	C2	C3	O4	O5
C1		1.2819	1.2819	2.4634	2.4634
C2	1.2819		2.5639	1.1815	3.7454
C3	1.2819	2.5639		3.7454	1.1815
O4	2.4634	1.1815	3.7454		4.9269
O5	2.4634	3.7454	1.1815	4.9269

atom1	atom2	atom3	angle		atom1	atom2	atom3	angle
C1	C2	O4	180.000		C1	C3	O5	180.000
C2	C1	C3	180.000

All results from a given calculation for C₃O₂ (Carbon suboxide)

using model chemistry: MP4/aug-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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All results from a given calculation for C3O2 (Carbon suboxide)

using model chemistry: MP4/aug-cc-pVTZ

States and conformations

All results from a given calculation for C₃O₂ (Carbon suboxide)