return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for NH2CN (cyanamide)

using model chemistry: PM3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description

Conformer 1 (Cs)

Jump to S1C2
Energy calculated at PM3
 hartrees
Energy at 0K 
Energy at 298.15K0.057710
HF Energy0.057710
Nuclear repulsion energy42.580975
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at PM3
Rotational Constants (cm-1) from geometry optimized at PM3
ABC
9.93739 0.32843 0.32191

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM3

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.231 0.000
N2 0.082 1.391 0.000
N3 0.034 -1.160 0.000
H4 -0.405 -1.502 0.824
H5 -0.405 -1.502 -0.824

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.16341.39061.96101.9610
N21.16342.55113.04753.0475
N31.39062.55110.99440.9944
H41.96103.04750.99441.6476
H51.96103.04750.99441.6476

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 109.494 C1 N3 H5 109.494
N2 C1 N3 174.571 H4 N3 H5 111.879
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at PM3
 hartrees
Energy at 0K 
Energy at 298.15K0.067323
HF Energy0.067323
Nuclear repulsion energy42.610837
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at PM3
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3545 3453 17.63      
2 A1 2366 2304 241.26      
3 A1 1525 1486 0.53      
4 A1 1156 1126 16.72      
5 B1 464 452 0.02      
6 B1 987i 961i 491.52      
7 B2 3516 3424 10.34      
8 B2 1044 1017 12.06      
9 B2 423 412        

Unscaled Zero Point Vibrational Energy (zpe) 6525.8 cm-1
Scaled (by 0.974) Zero Point Vibrational Energy (zpe) 6356.2 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at PM3
ABC
11.20380 0.33136 0.32184

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM3

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.229
N2 0.000 0.000 1.396
N3 0.000 0.000 -1.133
H4 0.000 0.864 -1.607
H5 0.000 -0.864 -1.607

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.16741.36222.02862.0286
N21.16742.52963.12463.1246
N31.36222.52960.98510.9851
H42.02863.12460.98511.7280
H52.02863.12460.98511.7280

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 118.708 C1 N3 H5 118.708
N2 C1 N3 180.000 H4 N3 H5 122.583
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability