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

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G
 hartrees
Energy at 0K-186.567727
Energy at 298.15K 
HF Energy-186.567727
Nuclear repulsion energy91.438186
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 PBE1PBE/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' 3272 3128 8.02 95.25 0.55 0.71
2 A' 3132 2994 14.08 101.15 0.15 0.26
3 A' 2289 2188 37.00 170.39 0.31 0.48
4 A' 1730 1653 30.22 35.08 0.26 0.41
5 A' 1547 1479 9.53 28.69 0.46 0.63
6 A' 1234 1179 5.11 5.65 0.75 0.86
7 A' 951 909 4.94 2.39 0.07 0.13
8 A' 573 548 3.17 4.74 0.48 0.65
9 A' 242 232 7.83 9.60 0.54 0.70
10 A" 1118 1069 31.82 0.11 0.75 0.86
11 A" 779 745 0.59 9.86 0.75 0.86
12 A" 342 327 7.29 1.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8604.7 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 8225.3 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 PBE1PBE/6-31G
ABC
2.57356 0.17120 0.16052

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.121 -1.601 0.000
N2 -0.543 -0.502 0.000
C3 0.000 0.723 0.000
N4 0.329 1.853 0.000
H5 -0.441 -2.529 0.000
H6 1.210 -1.659 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.28372.32683.46031.08451.0914
N21.28371.33962.51142.02942.1004
C32.32681.33961.17743.28132.6713
N43.46032.51141.17744.44913.6205
H51.08452.02943.28134.44911.8665
H61.09142.10042.67133.62051.8665

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 124.979 N2 C1 H5 117.708
N2 C1 H6 124.146 N2 C3 N4 172.346
H5 C1 H6 118.146
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.112      
2 N -0.330      
3 C 0.271      
4 N -0.239      
5 H 0.212      
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
  0.893 -4.426 0.000 4.515
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.705 -2.599 0.000
y -2.599 -23.888 0.000
z 0.000 0.000 -22.638
Traceless
 xyz
x -0.442 -2.599 0.000
y -2.599 -0.717 0.000
z 0.000 0.000 1.159
Polar
3z2-r22.318
x2-y20.183
xy-2.599
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.228 0.187 0.000
y 0.187 8.491 0.000
z 0.000 0.000 1.849


<r2> (average value of r2) Å2
<r2> 72.650
(<r2>)1/2 8.523