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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: PBE1PBE/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBE1PBE/6-311+G(3df,2p)
 hartrees
Energy at 0K-148.668261
Energy at 298.15K-148.670671
HF Energy-148.668261
Nuclear repulsion energy60.388142
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 PBE1PBE/6-311+G(3df,2p)
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 3642 3642 27.66      
2 A 1306 1306 0.00      
3 A 908 908 12.55      
4 A 722 722 92.64      
5 A 548 548 0.52      
6 B 3639 3639 160.39      
7 B 2254 2254 712.23      
8 B 908 908 426.11      
9 B 552 552 84.11      

Unscaled Zero Point Vibrational Energy (zpe) 7239.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7239.7 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 PBE1PBE/6-311+G(3df,2p)
ABC
12.66349 0.34958 0.34956

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311+G(3df,2p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.016
N2 0.000 1.213 -0.079
N3 0.000 -1.213 -0.079
H4 0.618 1.759 0.504
H5 -0.618 -1.759 0.504

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.21681.21681.92751.9275
N21.21682.42631.00973.0914
N31.21682.42633.09141.0097
H41.92751.00973.09143.7295
H51.92753.09141.00973.7295

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.641 C1 N3 H5 119.641
N2 C1 N3 171.082
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.446      
2 N -0.924      
3 N -0.924      
4 H 0.201      
5 H 0.201      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.980 1.980
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.000 4.152 0.000
y 4.152 -16.347 0.000
z 0.000 0.000 -17.510
Traceless
 xyz
x -0.071 4.152 0.000
y 4.152 0.907 0.000
z 0.000 0.000 -0.836
Polar
3z2-r2-1.672
x2-y2-0.653
xy4.152
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.985 0.230 0.000
y 0.230 6.694 0.000
z 0.000 0.000 2.957


<r2> (average value of r2) Å2
<r2> 38.742
(<r2>)1/2 6.224