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 H2CNCN (cyanamide, methylene)

using model chemistry: B97D3/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at B97D3/3-21G*
 hartrees
Energy at 0K-185.703385
Energy at 298.15K 
HF Energy-185.703385
Nuclear repulsion energy91.006599
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 B97D3/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3147 3147 16.21 94.60 0.54 0.70
2 A' 3017 3017 21.64 94.67 0.16 0.28
3 A' 2174 2174 9.31 120.32 0.34 0.50
4 A' 1612 1612 18.69 18.04 0.27 0.42
5 A' 1507 1507 10.94 38.37 0.41 0.58
6 A' 1198 1198 4.35 5.52 0.72 0.84
7 A' 894 894 3.75 3.01 0.08 0.14
8 A' 599 599 2.71 3.25 0.43 0.60
9 A' 255 255 6.76 9.05 0.53 0.69
10 A" 1058 1058 32.10 0.04 0.75 0.86
11 A" 778 778 0.78 8.62 0.75 0.86
12 A" 392 392 5.10 1.29 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8315.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8315.4 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 B97D3/3-21G*
ABC
2.43710 0.17098 0.15977

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.109 -1.602 0.000
N2 -0.565 -0.497 0.000
C3 0.000 0.723 0.000
N4 0.364 1.850 0.000
H5 -0.448 -2.539 0.000
H6 1.204 -1.659 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.29472.32693.46131.09021.0969
N21.29471.34382.52392.04612.1174
C32.32691.34381.18483.29242.6688
N43.46132.52391.18484.46373.6084
H51.09022.04613.29244.46371.8719
H61.09692.11742.66883.60841.8719

picture of cyanamide, methylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 123.736 N2 C1 H5 117.914
N2 C1 H6 124.374 N2 C3 N4 173.003
H5 C1 H6 117.712
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.114      
2 N -0.499      
3 C 0.576      
4 N -0.428      
5 H 0.242      
6 H 0.222      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.707 -4.050 0.000 4.111
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.405 -2.353 0.000
y -2.353 -23.368 0.000
z 0.000 0.000 -22.557
Traceless
 xyz
x -0.442 -2.353 0.000
y -2.353 -0.387 0.000
z 0.000 0.000 0.830
Polar
3z2-r21.660
x2-y2-0.037
xy-2.353
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.003 0.273 0.000
y 0.273 8.161 0.000
z 0.000 0.000 1.645


<r2> (average value of r2) Å2
<r2> 72.733
(<r2>)1/2 8.528