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

using model chemistry: PBEPBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-186.706578
Energy at 298.15K 
HF Energy-186.706578
Nuclear repulsion energy91.912310
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 PBEPBE/cc-pVTZ
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' 3109 3087 6.26 94.20 0.58 0.73
2 A' 2989 2968 19.81 112.28 0.13 0.22
3 A' 2208 2193 17.78 186.76 0.28 0.44
4 A' 1639 1627 19.59 50.20 0.25 0.39
5 A' 1452 1442 9.66 24.83 0.43 0.60
6 A' 1179 1171 10.21 3.11 0.75 0.86
7 A' 943 937 5.51 2.13 0.01 0.02
8 A' 608 604 4.16 4.28 0.23 0.37
9 A' 243 241 5.03 9.15 0.49 0.65
10 A" 1038 1031 19.63 0.26 0.75 0.86
11 A" 756 751 1.37 3.19 0.75 0.86
12 A" 354 351 6.76 0.43 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8258.7 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 8201.7 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 PBEPBE/cc-pVTZ
ABC
2.31577 0.17699 0.16442

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.104 -1.571 0.000
N2 -0.588 -0.490 0.000
C3 0.000 0.710 0.000
N4 0.390 1.815 0.000
H5 -0.438 -2.521 0.000
H6 1.203 -1.592 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.28312.28293.39771.09381.0991
N21.28311.33602.50362.03652.1023
C32.28291.33601.17193.26022.5968
N43.39772.50361.17194.41423.5023
H51.09382.03653.26024.41421.8855
H61.09912.10232.59683.50231.8855

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 121.281 N2 C1 H5 117.689
N2 C1 H6 123.711 N2 C3 N4 173.321
H5 C1 H6 118.600
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.045      
2 N -0.065      
3 C -0.030      
4 N -0.087      
5 H 0.130      
6 H 0.098      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.406 -4.286 0.000 4.305
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.577 -2.362 0.000
y -2.362 -23.842 0.000
z 0.000 0.000 -22.795
Traceless
 xyz
x -0.259 -2.362 0.000
y -2.362 -0.656 0.000
z 0.000 0.000 0.915
Polar
3z2-r21.829
x2-y20.265
xy-2.362
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.144 0.338 0.000
y 0.338 9.005 0.000
z 0.000 0.000 2.996


<r2> (average value of r2) Å2
<r2> 71.256
(<r2>)1/2 8.441