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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-186.825763
Energy at 298.15K 
HF Energy-186.825763
Nuclear repulsion energy92.545413
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 B3PW91/6-311G*
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' 3201 3081 9.26      
2 A' 3078 2963 22.35      
3 A' 2321 2235 32.58      
4 A' 1718 1654 32.29      
5 A' 1510 1453 12.70      
6 A' 1234 1188 9.86      
7 A' 972 935 6.41      
8 A' 633 610 4.65      
9 A' 253 243 5.86      
10 A" 1085 1045 20.75      
11 A" 780 751 1.99      
12 A" 378 364 8.62      

Unscaled Zero Point Vibrational Energy (zpe) 8580.9 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 8260.8 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 B3PW91/6-311G*
ABC
2.26150 0.18055 0.16720

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.089 -1.553 0.000
N2 -0.602 -0.483 0.000
C3 0.000 0.709 0.000
N4 0.420 1.789 0.000
H5 -0.445 -2.501 0.000
H6 1.182 -1.574 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27342.26383.35891.08811.0932
N21.27341.33562.49202.02372.0908
C32.26381.33561.15933.24072.5709
N43.35892.49201.15934.37693.4487
H51.08812.02373.24074.37691.8727
H61.09322.09082.57093.44871.8727

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 120.365 N2 C1 H5 117.743
N2 C1 H6 123.953 N2 C3 N4 174.468
H5 C1 H6 118.304
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.221      
2 N -0.246      
3 C 0.279      
4 N -0.293      
5 H 0.246      
6 H 0.235      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.488 -4.428 0.000 4.455
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.529 -2.592 0.000
y -2.592 -23.529 0.000
z 0.000 0.000 -22.652
Traceless
 xyz
x -0.439 -2.592 0.000
y -2.592 -0.438 0.000
z 0.000 0.000 0.877
Polar
3z2-r21.754
x2-y2-0.000
xy-2.592
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.629 0.347 0.000
y 0.347 8.197 0.000
z 0.000 0.000 2.347


<r2> (average value of r2) Å2
<r2> 70.199
(<r2>)1/2 8.378