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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-186.867818
Energy at 298.15K 
HF Energy-186.867818
Nuclear repulsion energy91.880540
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
4/u)
Dep P Dep U
1 A' 3228 3097 10.23 92.14 0.58 0.73
2 A' 3108 2981 18.73 96.18 0.14 0.24
3 A' 2285 2192 24.76 156.46 0.32 0.48
4 A' 1703 1633 27.71 37.42 0.25 0.40
5 A' 1527 1465 9.72 33.42 0.41 0.58
6 A' 1235 1185 8.87 5.20 0.75 0.86
7 A' 959 920 5.49 1.44 0.03 0.06
8 A' 612 588 3.53 3.30 0.33 0.50
9 A' 244 234 5.57 8.98 0.53 0.69
10 A" 1083 1039 21.00 0.09 0.75 0.86
11 A" 776 745 0.94 8.09 0.75 0.86
12 A" 359 345 8.34 0.91 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8559.3 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 8211.7 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
2.25763 0.17761 0.16465

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
C11.28302.27663.38941.08781.0928
N21.28301.34352.51142.03052.1006
C32.27661.34351.17223.25262.5833
N43.38942.51141.17224.40483.4845
H51.08782.03053.25264.40481.8719
H61.09282.10062.58333.48451.8719

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 120.151 N2 C1 H5 117.606
N2 C1 H6 124.103 N2 C3 N4 173.320
H5 C1 H6 118.291
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 -0.116      
2 N -0.367      
3 C 0.544      
4 N -0.461      
5 H 0.204      
6 H 0.196      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.553 -4.321 0.000 4.356
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 3.460 0.353 0.000
y 0.353 8.255 0.000
z 0.000 0.000 2.050


<r2> (average value of r2) Å2
<r2> 70.870
(<r2>)1/2 8.418