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	hartrees
Energy at 0K	-152.163472
Energy at 298.15K
HF Energy	-151.598027
Nuclear repulsion energy	60.998213

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A₁	3437	3437
2	A₁	1759	1759
3	A₁	1078	1078
4	A₁	874	874
5	A₂	495	495
6	B₁	514	514
7	B₂	3367	3367
8	B₂	933	933
9	B₂	207i	207i

Atom	y (Å)	z (Å)
O1	0.000	0.900
C2	0.638	-0.468
C3	-0.638	-0.468
H4	1.658	-0.794
H5	-1.658	-0.794

	O1	C2	C3	H4	H5
O1		1.5087	1.5087	2.3698	2.3698
C2	1.5087		1.2763	1.0708	2.3193
C3	1.5087	1.2763		2.3193	1.0708
H4	2.3698	1.0708	2.3193		3.3162
H5	2.3698	2.3193	1.0708	3.3162

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
O1	C2	C3	64.977	O1	C2	H4	132.749
O1	C3	C2	64.977	O1	C3	H5	132.749
C2	O1	C3	50.045	C2	C3	H5	162.273
C3	C2	H4	162.273

All results from a given calculation for C₂H₂O (Oxirene)

using model chemistry: MP4/6-31G(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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All results from a given calculation for C2H2O (Oxirene)

using model chemistry: MP4/6-31G(2df,p)

States and conformations

All results from a given calculation for C₂H₂O (Oxirene)