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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: B3LYPultrafine/3-21G

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/3-21G
 hartrees
Energy at 0K-147.947870
Energy at 298.15K-147.950190
HF Energy-147.947870
Nuclear repulsion energy59.894397
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/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 3555 3430 16.74      
2 A 1298 1252 0.12      
3 A 804 776 16.83      
4 A 680 656 149.03      
5 A 539 521 1.54      
6 B 3556 3431 131.00      
7 B 2297 2217 411.19      
8 B 808 780 580.32      
9 B 551 531 78.42      

Unscaled Zero Point Vibrational Energy (zpe) 7043.9 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 6796.7 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 B3LYPultrafine/3-21G
ABC
14.99947 0.34173 0.34145

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.021
N2 0.000 1.219 -0.073
N3 0.000 -1.219 -0.073
H4 0.582 1.869 0.449
H5 -0.582 -1.869 0.449

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22301.22302.00412.0041
N21.22302.43881.01653.1862
N31.22302.43883.18621.0165
H42.00411.01653.18623.9157
H52.00413.18621.01653.9157

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 126.743 C1 N3 H5 126.743
N2 C1 N3 171.194
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.751      
2 N -0.686      
3 N -0.686      
4 H 0.311      
5 H 0.311      


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 2.251 2.251
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.479 4.529 0.000
y 4.529 -14.604 0.000
z 0.000 0.000 -17.098
Traceless
 xyz
x -0.628 4.529 0.000
y 4.529 2.184 0.000
z 0.000 0.000 -1.556
Polar
3z2-r2-3.113
x2-y2-1.875
xy4.529
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.286 0.389 0.000
y 0.389 5.603 0.000
z 0.000 0.000 1.230


<r2> (average value of r2) Å2
<r2> 38.995
(<r2>)1/2 6.245