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

using model chemistry: B2PLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at B2PLYP/6-31G(2df,p)
 hartrees
Energy at 0K-186.720292
Energy at 298.15K 
HF Energy-186.499260
Nuclear repulsion energy92.181508
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 B2PLYP/6-31G(2df,p)
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' 3233 3087 4.84 75.24 0.59 0.74
2 A' 3112 2972 12.56 81.39 0.13 0.23
3 A' 2258 2156 17.51 146.22 0.29 0.45
4 A' 1694 1618 26.44 34.00 0.24 0.38
5 A' 1511 1443 12.44 25.95 0.41 0.58
6 A' 1233 1177 9.40 3.86 0.75 0.86
7 A' 951 908 5.19 1.18 0.01 0.03
8 A' 630 601 5.25 2.45 0.22 0.36
9 A' 253 241 5.63 7.70 0.49 0.66
10 A" 1099 1049 16.37 0.07 0.75 0.86
11 A" 785 750 1.31 5.67 0.75 0.86
12 A" 382 365 9.45 0.49 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8569.9 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 8184.3 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 B2PLYP/6-31G(2df,p)
ABC
2.19795 0.17988 0.16627

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.089 -1.554 0.000
N2 -0.615 -0.487 0.000
C3 0.000 0.708 0.000
N4 0.432 1.793 0.000
H5 -0.433 -2.506 0.000
H6 1.179 -1.561 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27832.26373.36451.08561.0902
N21.27831.34362.50852.02712.0909
C32.26371.34361.16783.24282.5572
N43.36452.50851.16784.38493.4364
H51.08562.02713.24284.38491.8687
H61.09022.09092.55723.43641.8687

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 119.372 N2 C1 H5 117.848
N2 C1 H6 123.779 N2 C3 N4 174.467
H5 C1 H6 118.374
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.185      
2 N -0.180      
3 C 0.302      
4 N -0.274      
5 H 0.170      
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
  0.420 -4.298 0.000 4.318
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.374 -2.601 -0.000
y -2.601 -23.388 -0.001
z -0.000 -0.001 -22.408
Traceless
 xyz
x -0.476 -2.601 -0.000
y -2.601 -0.497 -0.001
z -0.000 -0.001 0.973
Polar
3z2-r21.946
x2-y20.014
xy-2.601
xz-0.000
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.680 0.354 0.000
y 0.354 7.902 -0.000
z 0.000 -0.000 2.515


<r2> (average value of r2) Å2
<r2> 70.351
(<r2>)1/2 8.388