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: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-185.672657
Energy at 298.15K 
HF Energy-185.672657
Nuclear repulsion energy92.156441
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 HF/LANL2DZ
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' 3450 3105 10.48 84.90 0.52 0.68
2 A' 3310 2979 25.84 82.59 0.16 0.28
3 A' 2501 2251 105.05 214.38 0.25 0.40
4 A' 1853 1668 54.04 74.24 0.23 0.37
5 A' 1644 1479 26.99 36.25 0.47 0.64
6 A' 1325 1192 6.53 5.02 0.73 0.84
7 A' 978 880 5.53 2.75 0.09 0.17
8 A' 681 613 6.92 3.30 0.55 0.71
9 A' 278 250 9.24 11.14 0.59 0.74
10 A" 1265 1138 27.68 3.61 0.75 0.86
11 A" 850 765 1.39 13.61 0.75 0.86
12 A" 429 386 11.65 1.67 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9281.8 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 8352.7 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 HF/LANL2DZ
ABC
2.41745 0.17555 0.16366

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.085 -1.580 0.000
N2 -0.577 -0.493 0.000
C3 0.000 0.731 0.000
N4 0.404 1.812 0.000
H5 -0.463 -2.501 0.000
H6 1.162 -1.630 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27242.31223.40661.07171.0786
N21.27241.35312.50502.01132.0780
C32.31221.35311.15403.26482.6316
N43.40662.50501.15404.39913.5245
H51.07172.01133.26484.39911.8436
H61.07862.07802.63163.52451.8436

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 123.417 N2 C1 H5 117.931
N2 C1 H6 124.020 N2 C3 N4 175.259
H5 C1 H6 118.048
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.221      
2 N -0.140      
3 C 0.041      
4 N -0.100      
5 H 0.219      
6 H 0.201      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.071 -4.894 0.000 5.010
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.843 -3.334 0.000
y -3.334 -24.482 0.000
z 0.000 0.000 -23.320
Traceless
 xyz
x -0.942 -3.334 0.000
y -3.334 -0.401 0.000
z 0.000 0.000 1.343
Polar
3z2-r22.685
x2-y2-0.361
xy-3.334
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.179 0.152 0.000
y 0.152 8.065 0.000
z 0.000 0.000 1.981


<r2> (average value of r2) Å2
<r2> 71.978
(<r2>)1/2 8.484