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: B2PLYP=FULL/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C2V 1A1

Conformer 1 (Cs)

Jump to S1C2
Vibrational Frequencies calculated at B2PLYP=FULL/6-31G**
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULL/6-31G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B2PLYP=FULL/6-31G**
 hartrees
Energy at 0K-148.647794
Energy at 298.15K 
HF Energy-148.491467
Nuclear repulsion energy59.144665
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 B2PLYP=FULL/6-31G**
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 3678 3678 72.86      
2 A1 2327 2327 100.32      
3 A1 1644 1644 53.89      
4 A1 1129 1129 11.05      
5 B1 511 511 0.65      
6 B1 450i 450i 325.63      
7 B2 3806 3806 94.11      
8 B2 1144 1144 4.30      
9 B2 404 404 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 7096.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7096.6 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 B2PLYP=FULL/6-31G**
ABC
11.16470 0.33629 0.32645

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.218
N2 0.000 0.000 1.391
N3 0.000 0.000 -1.115
H4 0.000 0.866 -1.622
H5 0.000 -0.866 -1.622

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.17321.33272.03352.0335
N21.17322.50593.13523.1352
N31.33272.50591.00331.0033
H42.03353.13521.00331.7310
H52.03353.13521.00331.7310

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.384 C1 N3 H5 120.384
N2 C1 N3 180.000 H4 N3 H5 119.233
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability