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: HSEh1PBE/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 HSEh1PBE/6-31G
Rotational Constants (cm-1) from geometry optimized at HSEh1PBE/6-31G
See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at HSEh1PBE/6-31G
 hartrees
Energy at 0K-148.573489
Energy at 298.15K-148.575687
HF Energy-148.573489
Nuclear repulsion energy59.100736
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 HSEh1PBE/6-31G
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 3666 3507 66.12      
2 A1 2350 2248 120.43      
3 A1 1693 1620 78.28      
4 A1 1147 1097 7.70      
5 B1 528 505 284.84      
6 B1 457 437 209.50      
7 B2 3790 3626 78.68      
8 B2 1189 1137 7.63      
9 B2 401 384 0.99      

Unscaled Zero Point Vibrational Energy (zpe) 7609.7 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 7279.4 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 HSEh1PBE/6-31G
ABC
11.21405 0.33588 0.32611

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.216
N2 0.000 0.000 1.393
N3 0.000 0.000 -1.114
H4 0.000 0.864 -1.627
H5 0.000 -0.864 -1.627

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.17691.32982.03562.0356
N21.17692.50673.14133.1413
N31.32982.50671.00471.0047
H42.03563.14131.00471.7272
H52.03563.14131.00471.7272

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.738 C1 N3 H5 120.738
N2 C1 N3 180.000 H4 N3 H5 118.524
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.296      
2 N -0.246      
3 N -0.810      
4 H 0.380      
5 H 0.380      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -4.811 4.811
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.533 0.000 0.000
y 0.000 -14.544 0.000
z 0.000 0.000 -17.806
Traceless
 xyz
x -2.358 0.000 0.000
y 0.000 3.626 0.000
z 0.000 0.000 -1.268
Polar
3z2-r2-2.535
x2-y2-3.989
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.268 0.000 0.000
y 0.000 1.878 0.000
z 0.000 0.000 4.833


<r2> (average value of r2) Å2
<r2> 39.926
(<r2>)1/2 6.319