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

using model chemistry: HF/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 HF/aug-cc-pVDZ
 hartrees
Energy at 0K-185.776960
Energy at 298.15K 
HF Energy-185.776960
Nuclear repulsion energy93.248579
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/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' 3373 3071 4.55 72.32 0.58 0.74
2 A' 3253 2962 15.84 82.79 0.09 0.16
3 A' 2566 2336 106.75 193.59 0.21 0.34
4 A' 1865 1698 77.45 68.89 0.19 0.31
5 A' 1604 1460 33.24 21.24 0.36 0.53
6 A' 1325 1207 12.66 1.90 0.73 0.85
7 A' 1011 921 5.73 2.22 0.08 0.15
8 A' 710 646 6.58 2.68 0.10 0.18
9 A' 285 259 7.97 7.53 0.50 0.66
10 A" 1242 1131 15.79 1.99 0.75 0.86
11 A" 837 762 3.29 3.41 0.75 0.86
12 A" 433 395 12.05 0.58 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9251.0 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 8424.0 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/aug-cc-pVDZ
ABC
2.11597 0.18595 0.17093

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.069 -1.525 0.000
N2 -0.636 -0.480 0.000
C3 0.000 0.713 0.000
N4 0.475 1.747 0.000
H5 -0.438 -2.481 0.000
H6 1.155 -1.517 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.26052.23843.29721.08251.0868
N21.26051.35172.48922.01122.0705
C32.23841.35171.13863.22382.5115
N43.29722.48921.13864.32613.3348
H51.08252.01123.22384.32611.8624
H61.08682.07052.51153.33481.8624

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 117.897 N2 C1 H5 118.072
N2 C1 H6 123.626 N2 C3 N4 176.573
H5 C1 H6 118.303
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.870      
2 N -0.391      
3 C 0.068      
4 N -0.281      
5 H -0.157      
6 H -0.110      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.474 -4.974 0.000 4.996
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.405 -3.203 0.000
y -3.203 -23.645 0.000
z 0.000 0.000 -23.214
Traceless
 xyz
x -0.975 -3.203 0.000
y -3.203 0.164 0.000
z 0.000 0.000 0.811
Polar
3z2-r21.621
x2-y2-0.760
xy-3.203
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.323 0.279 0.000
y 0.279 8.006 0.000
z 0.000 0.000 3.458


<r2> (average value of r2) Å2
<r2> 69.247
(<r2>)1/2 8.321