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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: BLYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at BLYP/TZVP
 hartrees
Energy at 0K-148.808190
Energy at 298.15K-148.810518
HF Energy-148.808190
Nuclear repulsion energy59.719282
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 BLYP/TZVP
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 3486 3477 17.97      
2 A 1244 1241 0.00      
3 A 867 865 9.05      
4 A 691 690 107.54      
5 A 519 518 0.35      
6 B 3485 3476 100.32      
7 B 2162 2157 543.87      
8 B 867 865 429.60      
9 B 521 520 68.29      

Unscaled Zero Point Vibrational Energy (zpe) 6921.4 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 6904.1 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 BLYP/TZVP
ABC
12.73354 0.34158 0.34155

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.028
N2 0.000 1.226 -0.082
N3 0.000 -1.226 -0.082
H4 0.615 1.799 0.493
H5 -0.615 -1.799 0.493

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.23041.23041.95751.9575
N21.23042.45111.01883.1397
N31.23042.45113.13971.0188
H41.95751.01883.13973.8029
H51.95753.13971.01883.8029

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 120.693 C1 N3 H5 120.693
N2 C1 N3 169.772
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.235      
2 N -0.345      
3 N -0.345      
4 H 0.227      
5 H 0.227      


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 2.145 2.145
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.133 4.378 0.000
y 4.378 -16.380 0.000
z 0.000 0.000 -17.707
Traceless
 xyz
x -0.089 4.378 0.000
y 4.378 1.040 0.000
z 0.000 0.000 -0.950
Polar
3z2-r2-1.901
x2-y2-0.753
xy4.378
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.363 0.292 0.000
y 0.292 6.755 0.000
z 0.000 0.000 2.343


<r2> (average value of r2) Å2
<r2> 39.506
(<r2>)1/2 6.285