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	hartrees
Energy at 0K	-116.300624
Energy at 298.15K
HF Energy	-115.870396
Nuclear repulsion energy	58.417768

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3165	3037	0.00
2	A₁	1492	1431	0.00
3	A₁	1093	1049	0.00
4	B₁	866	831	0.00
5	B₂	3165	3036	2.84
6	B₂	2046	1963	32.00
7	B₂	1435	1377	1.26
8	E	3258	3126	2.33
8	E	3258	3126	2.33
9	E	1024	982	1.19
9	E	1024	982	1.19
10	E	856	821	47.42
10	E	856	821	47.42
11	E	353	338	3.80
11	E	353	338	3.80

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.000
C2	0.000	0.000	1.325
C3	0.000	0.000	-1.325
H4	0.000	0.941	1.889
H5	0.000	-0.941	1.889
H6	0.941	0.000	-1.889
H7	-0.941	0.000	-1.889

	C1	C2	C3	H4	H5	H6	H7
C1		1.3254	1.3254	2.1103	2.1103	2.1103	2.1103
C2	1.3254		2.6507	1.0965	1.0965	3.3492	3.3492
C3	1.3254	2.6507		3.3492	3.3492	1.0965	1.0965
H4	2.1103	1.0965	3.3492		1.8811	4.0055	4.0055
H5	2.1103	1.0965	3.3492	1.8811		4.0055	4.0055
H6	2.1103	3.3492	1.0965	4.0055	4.0055		1.8811
H7	2.1103	3.3492	1.0965	4.0055	4.0055	1.8811

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H4	120.937	C1	C2	H5	120.937
C1	C3	H6	120.937	C1	C3	H7	120.937
C2	C1	C3	180.000	H4	C2	H5	118.125
H6	C3	H7	118.125

All results from a given calculation for CH₂CCH₂ (allene)

using model chemistry: QCISD/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 CH2CCH2 (allene)

using model chemistry: QCISD/cc-pVDZ

States and conformations

All results from a given calculation for CH₂CCH₂ (allene)