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

using model chemistry: PBEPBEultrafine/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at PBEPBEultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-186.666647
Energy at 298.15K 
HF Energy-186.666647
Nuclear repulsion energy91.379890
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 PBEPBEultrafine/aug-cc-pVDZ
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' 3132 3113 4.50 94.24 0.59 0.74
2 A' 2999 2981 18.39 121.03 0.10 0.18
3 A' 2200 2186 20.29 229.71 0.25 0.40
4 A' 1636 1626 17.25 63.06 0.22 0.36
5 A' 1441 1433 9.52 22.55 0.40 0.58
6 A' 1170 1162 10.13 2.48 0.71 0.83
7 A' 943 937 5.25 3.26 0.00 0.00
8 A' 602 598 3.23 5.71 0.18 0.30
9 A' 243 241 5.24 9.48 0.46 0.63
10 A" 1038 1032 21.38 0.77 0.75 0.86
11 A" 748 744 1.06 1.62 0.75 0.86
12 A" 345 343 6.20 0.24 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8248.2 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 8197.9 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 PBEPBEultrafine/aug-cc-pVDZ
ABC
2.27237 0.17535 0.16279

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.111 -1.577 0.000
N2 -0.593 -0.494 0.000
C3 0.000 0.710 0.000
N4 0.386 1.827 0.000
H5 -0.431 -2.535 0.000
H6 1.217 -1.588 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.29092.28893.41441.10061.1061
N21.29091.34232.51932.04662.1147
C32.28891.34231.18193.27282.6001
N43.41442.51931.18194.43723.5144
H51.10062.04663.27284.43721.9003
H61.10612.11472.60013.51441.9003

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 120.733 N2 C1 H5 117.468
N2 C1 H6 123.643 N2 C3 N4 172.848
H5 C1 H6 118.889
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.817      
2 N -0.128      
3 C 0.055      
4 N -0.274      
5 H -0.272      
6 H -0.198      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.447 -4.371 0.000 4.393
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.953 -2.461 0.000
y -2.461 -24.181 0.000
z 0.000 0.000 -23.108
Traceless
 xyz
x -0.308 -2.461 0.000
y -2.461 -0.651 0.000
z 0.000 0.000 0.959
Polar
3z2-r21.918
x2-y20.228
xy-2.461
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.782 0.378 0.000
y 0.378 9.694 0.000
z 0.000 0.000 3.730


<r2> (average value of r2) Å2
<r2> 72.030
(<r2>)1/2 8.487