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	hartrees
Energy at 0K	-18.935745
Energy at 298.15K	-18.938477
HF Energy	-18.673940
Nuclear repulsion energy	31.081260

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)	Raman Act (Å⁴/u)	Dep P	Dep U
1	A₁	3092	3017	0.00	277.27	0.06	0.11
2	A₁	1504	1468	0.00	37.97	0.61	0.76
3	A₁	1043	1018	0.00	24.52	0.21	0.35
4	B₁	898	876	0.00	9.97	0.75	0.86
5	B₂	3094	3019	8.36	60.92	0.75	0.86
6	B₂	1946	1899	33.38	0.13	0.75	0.86
7	B₂	1477	1441	2.46	0.00	0.75	0.86
8	E	3194	3117	9.56	90.57	0.75	0.86
8	E	3194	3117	9.56	90.57	0.75	0.86
9	E	1059	1034	0.34	0.06	0.75	0.86
9	E	1059	1034	0.34	0.06	0.75	0.86
10	E	899	878	75.93	0.19	0.75	0.86
10	E	899	878	75.93	0.19	0.75	0.86
11	E	358	349	7.79	2.15	0.75	0.86
11	E	358	349	7.79	2.15	0.75	0.86

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.000
C2	0.000	0.000	1.343
C3	0.000	0.000	-1.343
H4	0.000	0.935	1.909
H5	0.000	-0.935	1.909
H6	0.935	0.000	-1.909
H7	-0.935	0.000	-1.909

	C1	C2	C3	H4	H5	H6	H7
C1		1.3429	1.3429	2.1257	2.1257	2.1257	2.1257
C2	1.3429		2.6859	1.0933	1.0933	3.3836	3.3836
C3	1.3429	2.6859		3.3836	3.3836	1.0933	1.0933
H4	2.1257	1.0933	3.3836		1.8710	4.0402	4.0402
H5	2.1257	1.0933	3.3836	1.8710		4.0402	4.0402
H6	2.1257	3.3836	1.0933	4.0402	4.0402		1.8710
H7	2.1257	3.3836	1.0933	4.0402	4.0402	1.8710

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H4	121.167	C1	C2	H5	121.167
C1	C3	H6	121.167	C1	C3	H7	121.167
C2	C1	C3	180.000	H4	C2	H5	117.665
H6	C3	H7	117.665

All results from a given calculation for CH₂CCH₂ (allene)

using model chemistry: MP2/CEP-121G

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: MP2/CEP-121G

States and conformations

All results from a given calculation for CH₂CCH₂ (allene)