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

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-185.742209
Energy at 298.15K 
HF Energy-185.742209
Nuclear repulsion energy91.602701
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 B3PW91/3-21G
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' 3213 3089 10.89      
2 A' 3087 2967 14.23      
3 A' 2277 2189 17.79      
4 A' 1684 1619 27.63      
5 A' 1542 1482 10.10      
6 A' 1227 1180 4.49      
7 A' 926 890 4.29      
8 A' 613 590 3.77      
9 A' 259 249 7.46      
10 A" 1108 1065 33.38      
11 A" 798 767 1.11      
12 A" 408 392 6.28      

Unscaled Zero Point Vibrational Energy (zpe) 8571.3 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 8238.8 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 B3PW91/3-21G
ABC
2.47114 0.17305 0.16172

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.100 -1.592 0.000
N2 -0.563 -0.493 0.000
C3 0.000 0.723 0.000
N4 0.373 1.835 0.000
H5 -0.457 -2.525 0.000
H6 1.190 -1.654 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.28362.31733.43821.08611.0924
N21.28361.33952.50872.03482.1028
C32.31731.33951.17293.27972.6584
N43.43822.50871.17294.43823.5838
H51.08612.03483.27974.43821.8633
H61.09242.10282.65843.58381.8633

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 124.098 N2 C1 H5 118.101
N2 C1 H6 124.310 N2 C3 N4 173.679
H5 C1 H6 117.589
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.130      
2 N -0.514      
3 C 0.580      
4 N -0.428      
5 H 0.257      
6 H 0.236      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.759 -4.162 0.000 4.230
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.504 -2.481 0.000
y -2.481 -23.384 0.000
z 0.000 0.000 -22.608
Traceless
 xyz
x -0.508 -2.481 0.000
y -2.481 -0.328 0.000
z 0.000 0.000 0.835
Polar
3z2-r21.671
x2-y2-0.120
xy-2.481
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.938 0.262 0.000
y 0.262 7.861 0.000
z 0.000 0.000 1.622


<r2> (average value of r2) Å2
<r2> 72.073
(<r2>)1/2 8.490