return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: PBE1PBE/daug-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 PBE1PBE/daug-cc-pVDZ
 hartrees
Energy at 0K-186.664940
Energy at 298.15K 
HF Energy-186.664940
Nuclear repulsion energy92.275680
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 PBE1PBE/daug-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' 3223 3223 3.34 82.44 0.60 0.75
2 A' 3092 3092 14.67 105.07 0.09 0.16
3 A' 2332 2332 37.77 234.16 0.22 0.37
4 A' 1724 1724 30.71 67.12 0.21 0.34
5 A' 1491 1491 14.59 20.61 0.40 0.57
6 A' 1218 1218 10.65 2.78 0.69 0.81
7 A' 975 975 5.41 2.20 0.05 0.10
8 A' 636 636 4.22 4.52 0.15 0.26
9 A' 253 253 6.04 8.49 0.45 0.62
10 A" 1107 1107 19.89 0.86 0.75 0.86
11 A" 780 780 1.38 1.90 0.75 0.86
12 A" 374 374 7.90 0.21 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8601.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8601.3 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 PBE1PBE/daug-cc-pVDZ
ABC
2.21093 0.18024 0.16666

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.091 -1.553 0.000
N2 -0.611 -0.486 0.000
C3 0.000 0.707 0.000
N4 0.425 1.792 0.000
H5 -0.437 -2.509 0.000
H6 1.188 -1.557 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27702.26183.36141.09231.0972
N21.27701.34052.50252.02992.0940
C32.26181.34051.16513.24542.5575
N43.36142.50251.16514.38623.4352
H51.09232.02993.24544.38621.8837
H61.09722.09402.55753.43521.8837

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 119.549 N2 C1 H5 117.701
N2 C1 H6 123.587 N2 C3 N4 174.299
H5 C1 H6 118.712
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.524      
2 N 0.519      
3 C 0.747      
4 N -0.598      
5 H -0.617      
6 H -0.574      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.437 -4.536 0.000 4.557
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.924 -2.679 0.000
y -2.679 -23.766 0.000
z 0.000 0.000 -22.999
Traceless
 xyz
x -0.542 -2.679 0.000
y -2.679 -0.304 0.000
z 0.000 0.000 0.846
Polar
3z2-r21.692
x2-y2-0.159
xy-2.679
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.649 0.365 0.000
y 0.365 8.960 0.000
z 0.000 0.000 3.682


<r2> (average value of r2) Å2
<r2> 70.564
(<r2>)1/2 8.400