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

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-186.781810
Energy at 298.15K 
HF Energy-186.781810
Nuclear repulsion energy92.167272
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 B3PW91/6-31G*
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' 3229 3089 8.28      
2 A' 3110 2975 16.46      
3 A' 2326 2226 29.10      
4 A' 1729 1654 32.39      
5 A' 1520 1455 9.96      
6 A' 1234 1181 8.65      
7 A' 973 931 5.68      
8 A' 620 593 4.32      
9 A' 246 236 5.87      
10 A" 1089 1042 20.92      
11 A" 778 744 1.32      
12 A" 367 351 9.23      

Unscaled Zero Point Vibrational Energy (zpe) 8610.7 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 8237.8 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 B3PW91/6-31G*
ABC
2.24868 0.17905 0.16585

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.096 -1.558 0.000
N2 -0.603 -0.489 0.000
C3 0.000 0.709 0.000
N4 0.412 1.801 0.000
H5 -0.432 -2.510 0.000
H6 1.190 -1.575 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27762.26873.37371.08901.0940
N21.27761.34072.50462.02862.0964
C32.26871.34071.16743.24782.5753
N43.37372.50461.16744.39303.4644
H51.08902.02863.24784.39301.8726
H61.09402.09642.57533.46441.8726

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 120.093 N2 C1 H5 117.784
N2 C1 H6 124.076 N2 C3 N4 173.954
H5 C1 H6 118.141
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.130      
2 N -0.361      
3 C 0.532      
4 N -0.454      
5 H 0.210      
6 H 0.203      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.534 -4.348 0.000 4.380
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.274 -2.584 0.000
y -2.584 -23.224 0.000
z 0.000 0.000 -22.389
Traceless
 xyz
x -0.467 -2.584 0.000
y -2.584 -0.392 0.000
z 0.000 0.000 0.860
Polar
3z2-r21.719
x2-y2-0.050
xy-2.584
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.446 0.370 0.000
y 0.370 8.088 0.000
z 0.000 0.000 2.044


<r2> (average value of r2) Å2
<r2> 70.468
(<r2>)1/2 8.395