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

using model chemistry: HF/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at HF/cc-pVQZ
 hartrees
Energy at 0K-185.830632
Energy at 298.15K 
HF Energy-185.830632
Nuclear repulsion energy93.829621
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/cc-pVQZ
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' 3349 3042 5.51 72.23 0.58 0.73
2 A' 3237 2941 16.93 81.25 0.10 0.18
3 A' 2566 2331 103.64 172.24 0.23 0.37
4 A' 1870 1698 79.25 62.42 0.20 0.34
5 A' 1619 1471 34.81 22.94 0.38 0.55
6 A' 1339 1217 13.37 2.06 0.74 0.85
7 A' 1011 918 6.72 1.73 0.09 0.17
8 A' 716 650 7.75 2.28 0.14 0.25
9 A' 287 260 7.78 7.54 0.51 0.67
10 A" 1254 1139 14.50 1.49 0.75 0.86
11 A" 846 769 3.65 4.29 0.75 0.86
12 A" 441 401 12.69 0.62 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9266.7 cm-1
Scaled (by 0.9084) Zero Point Vibrational Energy (zpe) 8417.9 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 HF/cc-pVQZ
ABC
2.17150 0.18755 0.17264

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.068 -1.519 0.000
N2 -0.627 -0.478 0.000
C3 0.000 0.712 0.000
N4 0.467 1.739 0.000
H5 -0.437 -2.468 0.000
H6 1.147 -1.518 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.25192.23283.28301.07501.0793
N21.25191.34532.47241.99942.0563
C32.23281.34531.12813.21062.5079
N43.28302.47241.12814.30373.3273
H51.07501.99943.21064.30371.8476
H61.07932.05632.50793.32731.8476

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 118.521 N2 C1 H5 118.270
N2 C1 H6 123.622 N2 C3 N4 176.686
H5 C1 H6 118.109
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.063      
2 N -0.334      
3 C 0.250      
4 N -0.253      
5 H 0.170      
6 H 0.103      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.464 -4.935 0.000 4.957
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.186 -3.142 0.000
y -3.142 -23.552 0.000
z 0.000 0.000 -22.971
Traceless
 xyz
x -0.924 -3.142 0.000
y -3.142 0.026 0.000
z 0.000 0.000 0.898
Polar
3z2-r21.797
x2-y2-0.633
xy-3.142
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.088 0.264 0.000
y 0.264 7.756 0.000
z 0.000 0.000 3.170


<r2> (average value of r2) Å2
<r2> 68.601
(<r2>)1/2 8.283