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

using model chemistry: HSEh1PBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at HSEh1PBE/6-31+G**
 hartrees
Energy at 0K-186.665017
Energy at 298.15K 
HF Energy-186.665017
Nuclear repulsion energy92.309492
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/6-31+G**
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' 3236 3090 4.02 89.63 0.60 0.75
2 A' 3108 2968 14.65 95.82 0.14 0.25
3 A' 2338 2232 42.86 224.81 0.27 0.42
4 A' 1734 1656 32.44 66.22 0.20 0.34
5 A' 1510 1441 12.09 24.94 0.44 0.61
6 A' 1230 1174 9.37 4.39 0.74 0.85
7 A' 981 936 6.52 1.71 0.05 0.10
8 A' 626 597 3.16 3.64 0.27 0.42
9 A' 250 238 6.28 10.58 0.55 0.71
10 A" 1101 1051 23.19 0.68 0.75 0.86
11 A" 781 745 1.25 5.87 0.75 0.86
12 A" 372 355 7.93 0.72 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8632.8 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 8242.6 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/6-31+G**
ABC
2.24040 0.17988 0.16651

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.095 -1.555 0.000
N2 -0.605 -0.487 0.000
C3 0.000 0.707 0.000
N4 0.416 1.796 0.000
H5 -0.433 -2.506 0.000
H6 1.188 -1.564 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27642.26383.36591.08811.0935
N21.27641.33882.50102.02622.0914
C32.26381.33881.16553.24232.5628
N43.36592.50101.16554.38503.4471
H51.08812.02623.24234.38501.8754
H61.09352.09142.56283.44711.8754

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 119.890 N2 C1 H5 117.734
N2 C1 H6 123.711 N2 C3 N4 174.043
H5 C1 H6 118.554
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.097      
2 N -0.214      
3 C 0.370      
4 N -0.416      
5 H 0.182      
6 H 0.175      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.563 -4.559 0.000 4.594
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.037 -2.748 0.000
y -2.748 -23.867 0.000
z 0.000 0.000 -23.010
Traceless
 xyz
x -0.599 -2.748 0.000
y -2.748 -0.344 0.000
z 0.000 0.000 0.942
Polar
3z2-r21.884
x2-y2-0.170
xy-2.748
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.107 0.438 0.000
y 0.438 8.834 0.000
z 0.000 0.000 2.891


<r2> (average value of r2) Å2
<r2> 70.657
(<r2>)1/2 8.406