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All results from a given calculation for H2CNCN (cyanamide, methylene)

using model chemistry: PBEPBE/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at PBEPBE/6-31G
 hartrees
Energy at 0K-186.578675
Energy at 298.15K 
HF Energy-186.578675
Nuclear repulsion energy90.543764
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 PBEPBE/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 A' 3170 3126 11.33 105.14 0.55 0.71
2 A' 3031 2989 20.32 115.00 0.16 0.28
3 A' 2156 2127 19.38 151.00 0.33 0.49
4 A' 1642 1619 19.99 25.02 0.26 0.41
5 A' 1499 1478 6.49 30.33 0.46 0.63
6 A' 1187 1170 5.00 6.08 0.74 0.85
7 A' 917 905 4.51 4.39 0.11 0.19
8 A' 545 537 2.28 5.29 0.47 0.64
9 A' 236 233 6.75 9.31 0.53 0.69
10 A" 1051 1036 31.69 0.04 0.75 0.86
11 A" 748 738 0.29 8.37 0.75 0.86
12 A" 320 316 5.42 1.19 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8250.5 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 8136.6 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 PBEPBE/6-31G
ABC
2.61233 0.16716 0.15711

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.141 -1.620 0.000
N2 -0.531 -0.510 0.000
C3 0.000 0.724 0.000
N4 0.294 1.883 0.000
H5 -0.427 -2.555 0.000
H6 1.240 -1.681 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.29772.34893.50661.09361.1008
N21.29771.34342.53092.04802.1226
C32.34891.34341.19533.30722.7056
N43.50662.53091.19534.49623.6867
H51.09362.04803.30724.49621.8822
H61.10082.12262.70563.68671.8822

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 125.576 N2 C1 H5 117.587
N2 C1 H6 124.286 N2 C3 N4 170.979
H5 C1 H6 118.127
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.106      
2 N -0.280      
3 C 0.238      
4 N -0.226      
5 H 0.194      
6 H 0.181      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.822 -4.248 0.000 4.327
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.487 -2.328 0.000
y -2.328 -23.974 0.000
z 0.000 0.000 -22.586
Traceless
 xyz
x -0.207 -2.328 0.000
y -2.328 -0.938 0.000
z 0.000 0.000 1.145
Polar
3z2-r22.290
x2-y20.487
xy-2.328
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.310 0.159 0.000
y 0.159 8.976 0.000
z 0.000 0.000 1.884


<r2> (average value of r2) Å2
<r2> 73.888
(<r2>)1/2 8.596