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

using model chemistry: PBE1PBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at PBE1PBE/6-31+G**
 hartrees
Energy at 0K-186.648200
Energy at 298.15K 
HF Energy-186.648200
Nuclear repulsion energy92.299463
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 PBE1PBE/6-31+G**
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' 3238 3093 3.66 88.61 0.61 0.76
2 A' 3110 2971 13.84 94.91 0.14 0.25
3 A' 2341 2236 42.70 222.63 0.27 0.42
4 A' 1736 1659 32.51 65.67 0.20 0.34
5 A' 1509 1442 12.23 24.54 0.44 0.61
6 A' 1230 1175 9.19 4.37 0.74 0.85
7 A' 981 937 6.46 1.68 0.05 0.10
8 A' 626 598 3.07 3.56 0.27 0.42
9 A' 249 238 6.30 10.51 0.56 0.71
10 A" 1102 1052 23.61 0.67 0.75 0.86
11 A" 781 746 1.24 5.91 0.75 0.86
12 A" 372 355 7.89 0.73 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8636.5 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 8250.4 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 PBE1PBE/6-31+G**
ABC
2.23233 0.17997 0.16654

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.095 -1.554 0.000
N2 -0.607 -0.488 0.000
C3 0.000 0.707 0.000
N4 0.418 1.795 0.000
H5 -0.433 -2.506 0.000
H6 1.188 -1.562 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27652.26313.36481.08831.0936
N21.27651.33962.50182.02612.0917
C32.26311.33961.16563.24212.5611
N43.36482.50181.16564.38453.4443
H51.08832.02613.24214.38451.8760
H61.09362.09172.56113.44431.8760

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 119.761 N2 C1 H5 117.694
N2 C1 H6 123.722 N2 C3 N4 174.071
H5 C1 H6 118.584
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.100      
2 N -0.210      
3 C 0.360      
4 N -0.411      
5 H 0.184      
6 H 0.177      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.565 -4.560 0.000 4.595
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.041 -2.752 0.000
y -2.752 -23.845 0.000
z 0.000 0.000 -23.020
Traceless
 xyz
x -0.608 -2.752 0.000
y -2.752 -0.315 0.000
z 0.000 0.000 0.924
Polar
3z2-r21.847
x2-y2-0.196
xy-2.752
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.102 0.438 0.000
y 0.438 8.806 0.000
z 0.000 0.000 2.888


<r2> (average value of r2) Å2
<r2> 70.643
(<r2>)1/2 8.405