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

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at G3B3
 hartrees
Energy at 0K-186.752646
Energy at 298.15K-186.747638
HF Energy-186.860583
Nuclear repulsion energy92.050833
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 B3LYP/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' 3218 3090 9.11 86.80 0.57 0.73
2 A' 3101 2978 16.37 88.97 0.14 0.25
3 A' 2316 2224 27.13 156.04 0.32 0.48
4 A' 1717 1648 31.95 39.46 0.25 0.41
5 A' 1522 1462 10.62 29.92 0.43 0.60
6 A' 1236 1187 9.01 5.20 0.75 0.86
7 A' 962 923 5.51 1.05 0.03 0.06
8 A' 618 593 4.43 3.20 0.32 0.49
9 A' 247 237 5.65 8.83 0.53 0.69
10 A" 1088 1045 18.20 0.09 0.75 0.86
11 A" 776 745 1.10 8.34 0.75 0.86
12 A" 365 350 9.27 0.89 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8581.7 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 8241.0 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 B3LYP/6-31G*
ABC
2.24640 0.17847 0.16534

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.098 -1.561 0.000
N2 -0.603 -0.491 0.000
C3 0.000 0.711 0.000
N4 0.411 1.804 0.000
H5 -0.429 -2.514 0.000
H6 1.191 -1.577 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27922.27363.37881.08881.0938
N21.27921.34432.50822.03102.0977
C32.27361.34431.16743.25322.5793
N43.37882.50821.16744.39843.4695
H51.08882.03103.25324.39841.8713
H61.09382.09772.57933.46951.8713

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 120.112 N2 C1 H5 117.865
N2 C1 H6 124.073 N2 C3 N4 173.700
H5 C1 H6 118.062
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.094      
2 N -0.344      
3 C 0.506      
4 N -0.440      
5 H 0.188      
6 H 0.183      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.514 -4.299 0.000 4.329
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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 70.695
(<r2>)1/2 8.408