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

using model chemistry: HSEh1PBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at HSEh1PBE/3-21G
 hartrees
Energy at 0K-185.613853
Energy at 298.15K 
HF Energy-185.613853
Nuclear repulsion energy91.764611
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/3-21G
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' 3228 3110 9.97 85.10 0.55 0.71
2 A' 3101 2987 13.06 84.79 0.15 0.27
3 A' 2302 2217 19.67 132.51 0.32 0.49
4 A' 1702 1639 30.03 31.05 0.27 0.42
5 A' 1549 1492 10.04 29.05 0.45 0.62
6 A' 1233 1188 4.64 5.21 0.74 0.85
7 A' 937 902 4.40 1.89 0.05 0.10
8 A' 618 596 4.03 3.08 0.46 0.63
9 A' 260 251 7.55 9.12 0.53 0.69
10 A" 1117 1076 32.86 0.10 0.75 0.86
11 A" 804 774 1.26 9.94 0.75 0.86
12 A" 411 396 6.54 1.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8631.4 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 8314.6 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/3-21G
ABC
2.47603 0.17369 0.16231

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.096 -1.589 0.000
N2 -0.563 -0.491 0.000
C3 0.000 0.722 0.000
N4 0.377 1.830 0.000
H5 -0.461 -2.521 0.000
H6 1.186 -1.652 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.28102.31363.43141.08541.0918
N21.28101.33722.50432.03252.0994
C32.31361.33721.17063.27572.6543
N43.43142.50431.17064.43133.5756
H51.08542.03253.27574.43131.8621
H61.09182.09942.65433.57561.8621

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 124.162 N2 C1 H5 118.159
N2 C1 H6 124.257 N2 C3 N4 173.891
H5 C1 H6 117.584
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.129      
2 N -0.522      
3 C 0.585      
4 N -0.430      
5 H 0.259      
6 H 0.237      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.759 -4.170 0.000 4.239
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.564 -2.499 0.000
y -2.499 -23.415 0.000
z 0.000 0.000 -22.641
Traceless
 xyz
x -0.536 -2.499 0.000
y -2.499 -0.313 0.000
z 0.000 0.000 0.849
Polar
3z2-r21.697
x2-y2-0.149
xy-2.499
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.924 0.265 0.000
y 0.265 7.801 0.000
z 0.000 0.000 1.615


<r2> (average value of r2) Å2
<r2> 71.893
(<r2>)1/2 8.479