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: 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-186.655205
Energy at 298.15K 
HF Energy-186.655205
Nuclear repulsion energy92.330378
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' 3245 3086 7.48 83.84 0.58 0.73
2 A' 3124 2971 15.20 88.01 0.14 0.24
3 A' 2350 2235 31.64 159.33 0.31 0.48
4 A' 1745 1659 35.21 42.93 0.26 0.41
5 A' 1524 1450 10.36 26.31 0.44 0.61
6 A' 1239 1178 8.91 5.09 0.75 0.86
7 A' 983 935 5.67 1.11 0.03 0.07
8 A' 626 596 4.41 2.99 0.33 0.49
9 A' 247 235 5.95 8.93 0.53 0.69
10 A" 1097 1044 20.43 0.10 0.75 0.86
11 A" 783 745 1.42 8.29 0.75 0.86
12 A" 372 354 9.50 0.88 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8667.6 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 8242.9 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
2.22991 0.18012 0.16666

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 0.092 -1.553 0.000
N2 -0.608 -0.487 0.000
C3 0.000 0.707 0.000
N4 0.422 1.793 0.000
H5 -0.435 -2.506 0.000
H6 1.185 -1.568 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27532.26213.36261.08851.0935
N21.27531.33952.50152.02642.0934
C32.26211.33951.16513.24212.5650
N43.36262.50151.16514.38353.4466
H51.08852.02643.24214.38351.8721
H61.09352.09342.56503.44661.8721

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 119.774 N2 C1 H5 117.807
N2 C1 H6 124.019 N2 C3 N4 174.250
H5 C1 H6 118.174
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 -0.131      
2 N -0.360      
3 C 0.520      
4 N -0.445      
5 H 0.212      
6 H 0.204      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.521 -4.352 0.000 4.383
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.354 -2.611 0.000
y -2.611 -23.226 0.000
z 0.000 0.000 -22.431
Traceless
 xyz
x -0.526 -2.611 0.000
y -2.611 -0.333 0.000
z 0.000 0.000 0.859
Polar
3z2-r21.718
x2-y2-0.128
xy-2.611
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.445 0.381 0.000
y 0.381 7.999 0.000
z 0.000 0.000 2.040


<r2> (average value of r2) Å2
<r2> 70.218
(<r2>)1/2 8.380