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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: B1B95/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B1B95/Def2TZVPP
 hartrees
Energy at 0K-148.787550
Energy at 298.15K-148.789960
HF Energy-148.787550
Nuclear repulsion energy60.493738
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 B1B95/Def2TZVPP
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 27.43      
2 A 1309 1309 0.01      
3 A 911 911 12.17      
4 A 727 727 95.68      
5 A 548 548 0.41      
6 B 3639 3639 152.92      
7 B 2261 2261 683.79      
8 B 911 911 427.08      
9 B 552 552 84.37      

Unscaled Zero Point Vibrational Energy (zpe) 7249.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7249.7 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 B1B95/Def2TZVPP
ABC
12.71445 0.35074 0.35069

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/Def2TZVPP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.014
N2 0.000 1.211 -0.078
N3 0.000 -1.211 -0.078
H4 0.618 1.755 0.503
H5 -0.618 -1.755 0.503

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.21481.21481.92331.9233
N21.21482.42271.00713.0848
N31.21482.42273.08481.0071
H41.92331.00713.08483.7201
H51.92333.08481.00713.7201

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.609 C1 N3 H5 119.609
N2 C1 N3 171.324
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.240      
2 N -0.316      
3 N -0.316      
4 H 0.196      
5 H 0.196      


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 2.016 2.016
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.767 4.124 0.000
y 4.124 -16.191 0.000
z 0.000 0.000 -17.287
Traceless
 xyz
x -0.028 4.124 0.000
y 4.124 0.836 0.000
z 0.000 0.000 -0.808
Polar
3z2-r2-1.616
x2-y2-0.576
xy4.124
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.577 0.274 0.000
y 0.274 6.378 0.000
z 0.000 0.000 2.550


<r2> (average value of r2) Å2
<r2> 38.517
(<r2>)1/2 6.206