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

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-186.783285
Energy at 298.15K 
HF Energy-186.783285
Nuclear repulsion energy92.438165
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 B1B95/6-31G**
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' 3249 3102 7.97 83.70 0.58 0.74
2 A' 3129 2988 14.89 87.93 0.14 0.24
3 A' 2358 2251 32.22 154.72 0.31 0.48
4 A' 1750 1671 36.84 41.48 0.25 0.40
5 A' 1526 1457 9.91 25.93 0.44 0.61
6 A' 1240 1184 9.10 5.08 0.75 0.86
7 A' 981 937 5.55 1.06 0.03 0.06
8 A' 623 595 4.40 2.82 0.33 0.49
9 A' 246 235 5.91 8.74 0.53 0.69
10 A" 1098 1049 19.45 0.09 0.75 0.86
11 A" 783 748 1.36 8.42 0.75 0.86
12 A" 371 354 9.64 0.87 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8677.6 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 8285.4 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 B1B95/6-31G**
ABC
2.22785 0.18062 0.16707

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.091 -1.550 0.000
N2 -0.609 -0.487 0.000
C3 0.000 0.707 0.000
N4 0.423 1.790 0.000
H5 -0.434 -2.502 0.000
H6 1.182 -1.564 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27342.25933.35731.08651.0914
N21.27341.33972.49992.02302.0899
C32.25931.33971.16323.23812.5600
N43.35732.49991.16324.37703.4388
H51.08652.02303.23814.37701.8686
H61.09142.08992.56003.43881.8686

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 119.655 N2 C1 H5 117.796
N2 C1 H6 124.022 N2 C3 N4 174.333
H5 C1 H6 118.181
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.115      
2 N -0.359      
3 C 0.504      
4 N -0.431      
5 H 0.204      
6 H 0.197      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.518 -4.310 0.000 4.341
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.296 -2.606 0.000
y -2.606 -23.181 0.000
z 0.000 0.000 -22.347
Traceless
 xyz
x -0.532 -2.606 0.000
y -2.606 -0.359 0.000
z 0.000 0.000 0.891
Polar
3z2-r21.782
x2-y2-0.115
xy-2.606
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.431 0.383 0.000
y 0.383 7.921 0.000
z 0.000 0.000 2.029


<r2> (average value of r2) Å2
<r2> 70.034
(<r2>)1/2 8.369