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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: B3LYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYP/6-31G
 hartrees
Energy at 0K-148.723113
Energy at 298.15K-148.725344
HF Energy-148.723113
Nuclear repulsion energy59.664003
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 B3LYP/6-31G
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 3667 3527 13.70      
2 A 1291 1242 0.00      
3 A 772 743 21.76      
4 A 656 631 180.23      
5 A 511 491 0.00      
6 B 3667 3528 174.25      
7 B 2276 2190 513.22      
8 B 776 747 608.82      
9 B 509 490 55.70      

Unscaled Zero Point Vibrational Energy (zpe) 7062.1 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 6793.8 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 B3LYP/6-31G
ABC
16.03089 0.33790 0.33776

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.036
N2 0.000 1.224 -0.076
N3 0.000 -1.224 -0.076
H4 0.559 1.903 0.421
H5 -0.559 -1.903 0.421

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22941.22942.02022.0202
N21.22942.44871.00963.2153
N31.22942.44873.21531.0096
H42.02021.00963.21533.9665
H52.02023.21531.00963.9665

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 128.654 C1 N3 H5 128.654
N2 C1 N3 169.583
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.396      
2 N -0.521      
3 N -0.521      
4 H 0.323      
5 H 0.323      


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 2.321 2.321
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.897 4.745 0.000
y 4.745 -14.454 0.000
z 0.000 0.000 -17.547
Traceless
 xyz
x -0.896 4.745 0.000
y 4.745 2.768 0.000
z 0.000 0.000 -1.872
Polar
3z2-r2-3.743
x2-y2-2.443
xy4.745
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.482 0.302 0.000
y 0.302 6.190 0.000
z 0.000 0.000 1.461


<r2> (average value of r2) Å2
<r2> 39.475
(<r2>)1/2 6.283