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	hartrees
Energy at 0K	-264.066585
Energy at 298.15K
HF Energy	-263.309996
Nuclear repulsion energy	121.495338

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ_g	2258	2175	0.00
2	Σ_g	778	750	0.00
3	Σ_u	2365	2278	4155.44
4	Σ_u	1641	1581	127.72
5	Π_g	601	579	0.00
5	Π_g	601	579	0.00
6	Π_u	533	513	52.01
6	Π_u	533	513	52.01
7	Π_u	130i	126i	1.31
7	Π_u	130i	126i	1.31

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.000
C2	0.000	0.000	1.291
C3	0.000	0.000	-1.291
O4	0.000	0.000	2.459
O5	0.000	0.000	-2.459

	C1	C2	C3	O4	O5
C1		1.2907	1.2907	2.4586	2.4586
C2	1.2907		2.5814	1.1679	3.7493
C3	1.2907	2.5814		3.7493	1.1679
O4	2.4586	1.1679	3.7493		4.9172
O5	2.4586	3.7493	1.1679	4.9172

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: CCSD/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: CCSD/aug-cc-pVDZ

States and conformations

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