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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: B3LYPultrafine/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYPultrafine/6-31+G**
 hartrees
Energy at 0K-148.795824
Energy at 298.15K-148.798189
HF Energy-148.795824
Nuclear repulsion energy59.878130
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 B3LYPultrafine/6-31+G**
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 3608 3473 23.89      
2 A 1288 1240 0.08      
3 A 891 858 8.78      
4 A 723 696 114.71      
5 A 533 513 0.11      
6 B 3606 3471 138.66      
7 B 2222 2139 688.75      
8 B 892 858 451.49      
9 B 527 508 75.64      

Unscaled Zero Point Vibrational Energy (zpe) 7144.5 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 6878.0 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 B3LYPultrafine/6-31+G**
ABC
12.53364 0.34355 0.34348

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.025
N2 0.000 1.224 -0.082
N3 0.000 -1.224 -0.082
H4 0.618 1.778 0.501
H5 -0.618 -1.778 0.501

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22821.22821.94131.9413
N21.22822.44721.01423.1191
N31.22822.44723.11911.0142
H41.94131.01423.11913.7641
H51.94133.11911.01423.7641

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.619 C1 N3 H5 119.619
N2 C1 N3 170.032
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.537      
2 N -0.572      
3 N -0.572      
4 H 0.304      
5 H 0.304      


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 2.269 2.269
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.151 4.573 0.000
y 4.573 -16.752 0.000
z 0.000 0.000 -17.729
Traceless
 xyz
x 0.089 4.573 0.000
y 4.573 0.688 0.000
z 0.000 0.000 -0.777
Polar
3z2-r2-1.554
x2-y2-0.399
xy4.573
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.445 0.192 0.000
y 0.192 6.837 0.000
z 0.000 0.000 2.429


<r2> (average value of r2) Å2
<r2> 39.393
(<r2>)1/2 6.276