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

using model chemistry: TPSSh/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 TPSSh/6-31G**
 hartrees
Energy at 0K-186.870290
Energy at 298.15K 
HF Energy-186.870290
Nuclear repulsion energy91.878930
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 TPSSh/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' 3217 3084 9.53 92.74 0.58 0.74
2 A' 3093 2966 17.35 98.25 0.13 0.23
3 A' 2284 2190 24.42 157.32 0.32 0.48
4 A' 1699 1629 27.16 38.91 0.25 0.40
5 A' 1519 1456 9.60 32.47 0.41 0.58
6 A' 1228 1178 9.04 5.08 0.75 0.86
7 A' 959 919 5.44 1.44 0.03 0.07
8 A' 612 587 3.54 3.30 0.33 0.50
9 A' 244 234 5.56 9.01 0.53 0.69
10 A" 1085 1040 20.51 0.07 0.75 0.86
11 A" 776 744 0.93 8.01 0.75 0.86
12 A" 359 345 8.36 0.90 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8537.7 cm-1
Scaled (by 0.9587) Zero Point Vibrational Energy (zpe) 8185.1 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 TPSSh/6-31G**
ABC
2.25957 0.17756 0.16463

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.106 -1.565 0.000
N2 -0.599 -0.493 0.000
C3 0.000 0.709 0.000
N4 0.397 1.812 0.000
H5 -0.422 -2.516 0.000
H6 1.199 -1.579 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.28312.27693.38991.08751.0925
N21.28311.34352.51142.03032.1003
C32.27691.34351.17223.25262.5836
N43.38992.51141.17224.40483.4852
H51.08752.03033.25264.40481.8716
H61.09252.10032.58363.48521.8716

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 120.179 N2 C1 H5 117.600
N2 C1 H6 124.091 N2 C3 N4 173.307
H5 C1 H6 118.309
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.024      
2 N -0.384      
3 C 0.545      
4 N -0.461      
5 H 0.165      
6 H 0.158      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.554 -4.317 0.000 4.352
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.481 0.351 0.000
y 0.351 8.293 0.000
z 0.000 0.000 2.077


<r2> (average value of r2) Å2
<r2> 70.874
(<r2>)1/2 8.419