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

using model chemistry: HF/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at HF/6-311+G(3df,2p)
 hartrees
Energy at 0K-185.816595
Energy at 298.15K 
HF Energy-185.816595
Nuclear repulsion energy93.790381
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/6-311+G(3df,2p)
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' 3348 3042 4.88 70.77 0.58 0.74
2 A' 3237 2941 16.67 77.61 0.10 0.18
3 A' 2565 2331 109.45 190.01 0.21 0.34
4 A' 1868 1698 79.64 67.95 0.18 0.31
5 A' 1618 1470 35.34 22.14 0.36 0.53
6 A' 1338 1216 13.18 2.04 0.73 0.84
7 A' 1012 920 6.69 2.16 0.10 0.17
8 A' 716 651 7.52 2.58 0.11 0.20
9 A' 287 261 7.97 7.43 0.49 0.66
10 A" 1252 1138 15.31 2.09 0.75 0.86
11 A" 845 768 3.72 3.57 0.75 0.86
12 A" 443 402 12.62 0.60 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9265.1 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 8418.3 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 HF/6-311+G(3df,2p)
ABC
2.17068 0.18740 0.17251

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.069 -1.520 0.000
N2 -0.627 -0.478 0.000
C3 0.000 0.712 0.000
N4 0.465 1.741 0.000
H5 -0.435 -2.470 0.000
H6 1.149 -1.518 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.25272.23323.28461.07561.0799
N21.25271.34542.47312.00072.0577
C32.23321.34541.12883.21172.5087
N43.28462.47311.12884.30573.3294
H51.07562.00073.21174.30571.8485
H61.07992.05772.50873.32941.8485

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 118.498 N2 C1 H5 118.279
N2 C1 H6 123.631 N2 C3 N4 176.590
H5 C1 H6 118.090
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.321      
2 N -0.872      
3 C 1.368      
4 N -1.152      
5 H 0.169      
6 H 0.167      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.476 -4.959 0.000 4.982
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.259 -3.174 0.000
y -3.174 -23.601 0.000
z 0.000 0.000 -23.078
Traceless
 xyz
x -0.920 -3.174 0.000
y -3.174 0.068 0.000
z 0.000 0.000 0.852
Polar
3z2-r21.704
x2-y2-0.659
xy-3.174
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.253 0.268 0.000
y 0.268 7.884 0.000
z 0.000 0.000 3.405


<r2> (average value of r2) Å2
<r2> 68.691
(<r2>)1/2 8.288