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

using model chemistry: HF/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 HF/6-31G
 hartrees
Energy at 0K-185.650229
Energy at 298.15K 
HF Energy-185.650229
Nuclear repulsion energy92.542615
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 HF/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' 3437 3103 7.24 89.42 0.53 0.70
2 A' 3301 2980 10.02 83.71 0.15 0.26
3 A' 2528 2283 83.67 166.99 0.29 0.45
4 A' 1873 1691 61.19 55.44 0.26 0.41
5 A' 1651 1490 22.13 33.96 0.44 0.61
6 A' 1340 1209 5.88 4.11 0.75 0.85
7 A' 989 893 4.34 1.87 0.09 0.16
8 A' 644 581 5.29 3.61 0.55 0.71
9 A' 263 238 9.14 10.07 0.57 0.73
10 A" 1260 1138 25.25 1.22 0.75 0.86
11 A" 842 760 1.91 15.56 0.75 0.86
12 A" 385 347 12.37 1.79 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9255.8 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 8357.0 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 HF/6-31G
ABC
2.45851 0.17681 0.16495

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.089 -1.574 0.000
N2 -0.570 -0.493 0.000
C3 0.000 0.727 0.000
N4 0.393 1.807 0.000
H5 -0.457 -2.494 0.000
H6 1.164 -1.623 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.26652.30353.39481.07001.0765
N21.26651.34682.49322.00472.0700
C32.30351.34681.14873.25402.6227
N43.39482.49321.14874.38443.5152
H51.07002.00473.25404.38441.8411
H61.07652.07002.62273.51521.8411

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 123.601 N2 C1 H5 117.943
N2 C1 H6 123.930 N2 C3 N4 174.958
H5 C1 H6 118.127
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.044      
2 N -0.446      
3 C 0.315      
4 N -0.242      
5 H 0.218      
6 H 0.199      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.038 -4.821 0.000 4.932
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.587 -3.235 0.000
y -3.235 -24.156 0.000
z 0.000 0.000 -23.017
Traceless
 xyz
x -1.000 -3.235 0.000
y -3.235 -0.354 0.000
z 0.000 0.000 1.354
Polar
3z2-r22.708
x2-y2-0.431
xy-3.235
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.112 0.130 0.000
y 0.130 7.886 0.000
z 0.000 0.000 1.755


<r2> (average value of r2) Å2
<r2> 71.362
(<r2>)1/2 8.448