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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-186.713260
Energy at 298.15K 
HF Energy-186.713260
Nuclear repulsion energy91.298425
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' 3255 3118 9.60      
2 A' 3117 2985 16.65      
3 A' 2263 2167 34.08      
4 A' 1712 1640 28.15      
5 A' 1543 1478 9.02      
6 A' 1228 1176 5.17      
7 A' 941 902 4.93      
8 A' 567 543 3.17      
9 A' 242 232 7.64      
10 A" 1108 1061 31.56      
11 A" 773 740 0.51      
12 A" 338 324 7.05      

Unscaled Zero Point Vibrational Energy (zpe) 8543.8 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 8182.4 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 B3PW91/6-31G
ABC
2.59494 0.17037 0.15988

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 0.125 -1.605 0.000
N2 -0.538 -0.504 0.000
C3 0.000 0.724 0.000
N4 0.320 1.859 0.000
H5 -0.437 -2.533 0.000
H6 1.216 -1.664 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.28582.33203.46971.08491.0918
N21.28581.34042.51412.03172.1031
C32.33201.34041.17973.28582.6794
N43.46972.51411.17974.45693.6355
H51.08492.03173.28584.45691.8668
H61.09182.10312.67943.63551.8668

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 125.229 N2 C1 H5 117.718
N2 C1 H6 124.188 N2 C3 N4 172.035
H5 C1 H6 118.094
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 -0.109      
2 N -0.318      
3 C 0.264      
4 N -0.237      
5 H 0.207      
6 H 0.193      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.890 -4.418 0.000 4.507
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.598 -2.560 0.000
y -2.560 -23.881 0.000
z 0.000 0.000 -22.566
Traceless
 xyz
x -0.374 -2.560 0.000
y -2.560 -0.799 0.000
z 0.000 0.000 1.174
Polar
3z2-r22.347
x2-y20.283
xy-2.560
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.235 0.173 0.000
y 0.173 8.587 0.000
z 0.000 0.000 1.855


<r2> (average value of r2) Å2
<r2> 72.849
(<r2>)1/2 8.535