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

using model chemistry: B3LYP/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 B3LYP/3-21G*
 hartrees
Energy at 0K-185.820831
Energy at 298.15K 
HF Energy-185.820831
Nuclear repulsion energy91.551014
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/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' 3204 3082 12.33 88.86 0.54 0.70
2 A' 3080 2963 15.27 86.87 0.16 0.27
3 A' 2271 2185 16.29 128.05 0.32 0.49
4 A' 1678 1614 26.50 25.55 0.26 0.42
5 A' 1546 1487 11.33 34.35 0.44 0.61
6 A' 1229 1182 4.84 5.26 0.74 0.85
7 A' 916 881 4.09 1.79 0.05 0.09
8 A' 613 589 3.70 3.11 0.44 0.61
9 A' 261 251 6.88 9.00 0.53 0.69
10 A" 1106 1064 29.43 0.05 0.75 0.86
11 A" 796 766 0.80 9.96 0.75 0.86
12 A" 406 391 6.21 1.09 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8552.7 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 8227.7 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/3-21G*
ABC
2.46290 0.17286 0.16152

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.101 -1.593 0.000
N2 -0.564 -0.494 0.000
C3 0.000 0.724 0.000
N4 0.372 1.836 0.000
H5 -0.451 -2.527 0.000
H6 1.191 -1.654 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.28412.31933.43931.08531.0916
N21.28411.34292.51112.03592.1033
C32.31931.34291.17213.28262.6595
N43.43932.51111.17214.44003.5843
H51.08532.03593.28264.44001.8601
H61.09162.10332.65953.58431.8601

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 123.969 N2 C1 H5 118.222
N2 C1 H6 124.386 N2 C3 N4 173.656
H5 C1 H6 117.391
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.096      
2 N -0.494      
3 C 0.555      
4 N -0.414      
5 H 0.235      
6 H 0.215      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.729 -4.064 0.000 4.129
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.515 -2.458 0.000
y -2.458 -23.538 0.000
z 0.000 0.000 -22.540
Traceless
 xyz
x -0.476 -2.458 0.000
y -2.458 -0.511 0.000
z 0.000 0.000 0.987
Polar
3z2-r21.974
x2-y20.023
xy-2.458
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.930 0.250 0.000
y 0.250 7.838 0.000
z 0.000 0.000 1.611


<r2> (average value of r2) Å2
<r2> 72.161
(<r2>)1/2 8.495