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	hartrees
Energy at 0K	-150.920423
Energy at 298.15K	-150.918861
HF Energy	-150.468711
Nuclear repulsion energy	45.751116

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ	2071	2071
2	Σ	1090	1090
3	Π	413	413
3	Π	413	413

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-1.423
C2	0.000	0.000	-0.057
O3	0.000	0.000	1.110

	C1	C2	O3
C1		1.3660	2.5322
C2	1.3660		1.1662
O3	2.5322	1.1662

Number	Element	Mulliken
1	C	-0.209
2	C	0.493
3	O	-0.284

All results from a given calculation for CCO (Dicarbon monoxide)

using model chemistry: ROMP2/6-31G(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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<r²>	33.288
(<r²>)^1/2	5.770