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

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-185.824830
Energy at 298.15K 
HF Energy-185.824830
Nuclear repulsion energy93.791055
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 HF/Def2TZVPP
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' 3351 3038 5.65 72.88 0.58 0.74
2 A' 3239 2936 16.72 82.13 0.11 0.21
3 A' 2568 2328 104.28 170.19 0.24 0.38
4 A' 1871 1696 79.86 62.57 0.21 0.34
5 A' 1618 1467 33.63 23.75 0.38 0.55
6 A' 1339 1214 13.22 2.34 0.75 0.86
7 A' 1012 917 6.71 1.70 0.09 0.17
8 A' 716 649 7.60 2.17 0.17 0.29
9 A' 287 260 7.66 8.08 0.54 0.70
10 A" 1253 1136 14.22 1.22 0.75 0.86
11 A" 846 767 3.67 5.10 0.75 0.86
12 A" 442 401 12.74 0.75 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9272.1 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 8404.2 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 HF/Def2TZVPP
ABC
2.17035 0.18740 0.17250

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.068 -1.520 0.000
N2 -0.627 -0.478 0.000
C3 0.000 0.712 0.000
N4 0.468 1.740 0.000
H5 -0.438 -2.469 0.000
H6 1.147 -1.519 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.25242.23363.28451.07541.0797
N21.25241.34542.47332.00022.0572
C32.23361.34541.12893.21172.5091
N43.28452.47331.12894.30553.3290
H51.07542.00023.21174.30551.8483
H61.07972.05722.50913.32901.8483

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 118.543 N2 C1 H5 118.267
N2 C1 H6 123.623 N2 C3 N4 176.702
H5 C1 H6 118.109
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.166      
2 N -0.374      
3 C 0.195      
4 N -0.170      
5 H 0.097      
6 H 0.086      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.476 -4.938 0.000 4.961
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.206 -3.145 0.000
y -3.145 -23.601 0.000
z 0.000 0.000 -22.971
Traceless
 xyz
x -0.920 -3.145 0.000
y -3.145 -0.013 0.000
z 0.000 0.000 0.933
Polar
3z2-r21.867
x2-y2-0.605
xy-3.145
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.962 0.281 0.000
y 0.281 7.727 0.000
z 0.000 0.000 3.008


<r2> (average value of r2) Å2
<r2> 68.659
(<r2>)1/2 8.286