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

using model chemistry: B3LYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at B3LYP/STO-3G
 hartrees
Energy at 0K-184.437190
Energy at 298.15K 
HF Energy-184.437190
Nuclear repulsion energy88.886078
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/STO-3G
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' 3486 3111 3.56 47.88 0.65 0.79
2 A' 3314 2958 16.89 39.45 0.12 0.21
3 A' 2286 2040 12.14 67.03 0.30 0.46
4 A' 1700 1517 11.28 12.14 0.18 0.30
5 A' 1522 1358 11.15 32.02 0.44 0.61
6 A' 1216 1085 1.60 4.75 0.74 0.85
7 A' 858 766 0.42 0.96 0.03 0.05
8 A' 612 546 3.08 1.40 0.37 0.54
9 A' 240 214 4.76 4.81 0.53 0.69
10 A" 1036 925 18.90 0.05 0.75 0.86
11 A" 808 721 0.04 6.01 0.75 0.86
12 A" 328 292 6.99 0.18 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8703.0 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 7766.5 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/STO-3G
ABC
1.92020 0.16928 0.15556

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.156 -1.585 0.000
N2 -0.658 -0.541 0.000
C3 0.000 0.726 0.000
N4 0.389 1.867 0.000
H5 -0.315 -2.585 0.000
H6 1.264 -1.543 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.32362.31643.45981.10561.1086
N21.32361.42772.62562.07242.1673
C32.31641.42771.20533.32612.5977
N43.45982.62561.20534.50743.5210
H51.10562.07243.32614.50741.8918
H61.10862.16732.59773.52101.8918

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 114.632 N2 C1 H5 116.825
N2 C1 H6 125.790 N2 C3 N4 171.374
H5 C1 H6 117.385
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.008      
2 N -0.173      
3 C 0.126      
4 N -0.168      
5 H 0.115      
6 H 0.108      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.818 -3.224 0.000 3.326
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.917 -2.316 0.000
y -2.316 -22.193 0.000
z 0.000 0.000 -20.772
Traceless
 xyz
x -0.435 -2.316 0.000
y -2.316 -0.848 0.000
z 0.000 0.000 1.283
Polar
3z2-r22.567
x2-y20.276
xy-2.316
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.777 0.195 0.000
y 0.195 5.562 0.000
z 0.000 0.000 0.865


<r2> (average value of r2) Å2
<r2> 73.187
(<r2>)1/2 8.555