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

using model chemistry: B2PLYP/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 B2PLYP/6-31G
 hartrees
Energy at 0K-186.548556
Energy at 298.15K 
HF Energy-186.403478
Nuclear repulsion energy90.732257
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/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 A' 3269 3269 9.82 95.51 0.54 0.70
2 A' 3129 3129 16.23 101.01 0.15 0.27
3 A' 2174 2174 19.36 139.62 0.31 0.47
4 A' 1675 1675 21.01 15.73 0.23 0.37
5 A' 1542 1542 12.87 35.06 0.41 0.58
6 A' 1239 1239 4.44 5.95 0.75 0.86
7 A' 906 906 4.21 1.94 0.05 0.09
8 A' 567 567 2.42 4.17 0.46 0.63
9 A' 237 237 7.25 8.83 0.54 0.70
10 A" 1107 1107 27.86 0.01 0.75 0.86
11 A" 770 770 0.20 9.90 0.75 0.86
12 A" 316 316 7.42 1.06 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8466.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8466.2 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/6-31G
ABC
2.44978 0.16950 0.15853

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.127 -1.606 0.000
N2 -0.561 -0.510 0.000
C3 0.000 0.724 0.000
N4 0.338 1.864 0.000
H5 -0.418 -2.542 0.000
H6 1.217 -1.646 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.29412.33353.47641.08361.0907
N21.29411.35612.53902.03672.1104
C32.33351.35611.18903.29282.6646
N43.47642.53901.18904.47063.6187
H51.08362.03673.29284.47061.8650
H61.09072.11042.66463.61871.8650

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 123.391 N2 C1 H5 117.603
N2 C1 H6 124.266 N2 C3 N4 172.060
H5 C1 H6 118.131
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.069      
2 N -0.306      
3 C 0.216      
4 N -0.200      
5 H 0.186      
6 H 0.172      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.904 -4.312 0.000 4.406
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.022 -2.711 -0.000
y -2.711 -24.269 -0.001
z -0.000 -0.001 -22.749
Traceless
 xyz
x -0.513 -2.711 -0.000
y -2.711 -0.883 -0.001
z -0.000 -0.001 1.396
Polar
3z2-r22.793
x2-y20.247
xy-2.711
xz-0.000
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.260 0.167 0.000
y 0.167 8.255 -0.001
z 0.000 -0.001 1.844


<r2> (average value of r2) Å2
<r2> 73.489
(<r2>)1/2 8.573