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

using model chemistry: HSEh1PBE/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at HSEh1PBE/6-31G
 hartrees
Energy at 0K-186.584439
Energy at 298.15K 
HF Energy-186.584439
Nuclear repulsion energy91.452593
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 HSEh1PBE/6-31G
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' 3270 3128 8.59 96.28 0.55 0.71
2 A' 3130 2994 14.97 102.12 0.15 0.27
3 A' 2286 2187 36.83 170.82 0.31 0.48
4 A' 1728 1653 30.21 35.01 0.26 0.41
5 A' 1548 1481 9.38 28.96 0.46 0.63
6 A' 1233 1180 5.23 5.66 0.75 0.86
7 A' 951 910 4.98 2.46 0.07 0.13
8 A' 573 548 3.25 4.79 0.48 0.65
9 A' 242 232 7.76 9.62 0.54 0.70
10 A" 1118 1069 31.35 0.11 0.75 0.86
11 A" 778 745 0.59 9.82 0.75 0.86
12 A" 342 328 7.29 1.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8600.3 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 8227.0 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 HSEh1PBE/6-31G
ABC
2.58472 0.17114 0.16052

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.121 -1.602 0.000
N2 -0.541 -0.502 0.000
C3 0.000 0.723 0.000
N4 0.328 1.853 0.000
H5 -0.441 -2.529 0.000
H6 1.210 -1.661 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.28352.32733.46121.08431.0913
N21.28351.33862.51042.02962.1001
C32.32731.33861.17743.28132.6731
N43.46122.51041.17744.44933.6233
H51.08432.02963.28134.44931.8659
H61.09132.10012.67313.62331.8659

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 125.126 N2 C1 H5 117.750
N2 C1 H6 124.142 N2 C3 N4 172.332
H5 C1 H6 118.108
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.109      
2 N -0.324      
3 C 0.263      
4 N -0.235      
5 H 0.209      
6 H 0.195      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.885 -4.422 0.000 4.510
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.687 -2.587 0.000
y -2.587 -23.904 0.000
z 0.000 0.000 -22.618
Traceless
 xyz
x -0.426 -2.587 0.000
y -2.587 -0.752 0.000
z 0.000 0.000 1.177
Polar
3z2-r22.354
x2-y20.217
xy-2.587
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.228 0.186 0.000
y 0.186 8.513 0.000
z 0.000 0.000 1.848


<r2> (average value of r2) Å2
<r2> 72.652
(<r2>)1/2 8.524