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	hartrees
Energy at 0K	-169.104997
Energy at 298.15K	-169.104209
HF Energy	-168.542300
Nuclear repulsion energy	76.074242

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	3534	3302	80.36
2	Σ	2253	2106	8.51
3	Σ	2058	1923	4.64
4	Σ	893	834	0.37
5	Π	621	580	45.74
5	Π	621	580	45.74
6	Π	554	517	0.88
6	Π	554	517	0.88
7	Π	246	230	0.96
7	Π	246	230	0.96

Atom	x (Å)	y (Å)	z (Å)
N1	0.000	0.000	1.924
C2	0.000	0.000	0.738
C3	0.000	0.000	-0.637
C4	0.000	0.000	-1.859
H5	0.000	0.000	-2.922

	N1	C2	C3	C4	H5
N1		1.1862	2.5613	3.7833	4.8465
C2	1.1862		1.3750	2.5971	3.6603
C3	2.5613	1.3750		1.2221	2.2852
C4	3.7833	2.5971	1.2221		1.0632
H5	4.8465	3.6603	2.2852	1.0632

atom1	atom2	atom3	angle		atom1	atom2	atom3	angle
N1	C2	C3	180.000		C2	C3	C4	180.000
C3	C4	H5	180.000

All results from a given calculation for HCCCN (Cyanoacetylene)

using model chemistry: MP2=FULL/6-31G**

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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Calc. vs exp. Bad Vib. HF vs MP2 Bad scale factors Low excited states Oddities NaCN Is not linear FAQ Help Units Choose Units Energy Bond length Rotational Constant Moment of Inertia Dipole and Quadrupole Polarizability Explanations Hartree cm-1 Debye Credits Just show me Show me a calculated geometry Summary Using older interface Limit Basis sets Method options List Recent molecules Choose a few Molecules Number of atoms By heavy atoms Diatomics InChI Deuterated Dimers Geometry Point group Point group count Bonds types Isodesmic reactions Bad point group Multiple conformers, states Vibrations Big anharmonicity Energy Enthalpy at 0 Kelvin Similar molecules Similar Isomers Cis/trans Tautomers Multiple conformers, states Ions, Dipoles, etc. List Ions Ionization changes point group Dipole Quadrupole Polarizability Proton Affinities Index of CCCBDB Feedback Error form Wants
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Number	Element	Mulliken
1	N	-0.460
2	C	0.218
3	C	0.256
4	C	-0.324
5	H	0.310

<r²>	74.660
(<r²>)^1/2	8.641