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	hartrees
Energy at 0K	-264.141658
Energy at 298.15K
HF Energy	-263.300733
Nuclear repulsion energy	119.964407

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ_g	2086	2034
2	Σ_g	730	712
3	Σ_u	2335	2277
4	Σ_u	1497	1460
5	Π_g	553	539
5	Π_g	553	539
6	Π_u	481	469
6	Π_u	481	469
7	Π_u	102i	100i
7	Π_u	102i	100i

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.000
C2	0.000	0.000	1.297
C3	0.000	0.000	-1.297
O4	0.000	0.000	2.489
O5	0.000	0.000	-2.489

	C1	C2	C3	O4	O5
C1		1.2974	1.2974	2.4889	2.4889
C2	1.2974		2.5948	1.1915	3.7863
C3	1.2974	2.5948		3.7863	1.1915
O4	2.4889	1.1915	3.7863		4.9779
O5	2.4889	3.7863	1.1915	4.9779

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=FULL/aug-cc-pVDZ

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=FULL/aug-cc-pVDZ

States and conformations

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