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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: PBE1PBE/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBE1PBE/daug-cc-pVDZ
 hartrees
Energy at 0K-148.637477
Energy at 298.15K-148.639897
HF Energy-148.637477
Nuclear repulsion energy59.993745
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 PBE1PBE/daug-cc-pVDZ
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 3619 3619 24.41      
2 A 1297 1297 0.00      
3 A 938 938 10.33      
4 A 732 732 87.28      
5 A 540 540 0.22      
6 B 3617 3617 143.41      
7 B 2243 2243 686.26      
8 B 938 938 404.09      
9 B 543 543 72.50      

Unscaled Zero Point Vibrational Energy (zpe) 7232.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7232.5 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 PBE1PBE/daug-cc-pVDZ
ABC
12.06443 0.34550 0.34542

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/daug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.018
N2 0.000 1.222 -0.081
N3 0.000 -1.222 -0.081
H4 0.629 1.748 0.518
H5 -0.629 -1.748 0.518

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22631.22631.92341.9234
N21.22632.44451.01493.0943
N31.22632.44453.09431.0149
H41.92341.01493.09433.7147
H51.92343.09431.01493.7147

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 117.925 C1 N3 H5 117.925
N2 C1 N3 170.725
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.369      
2 N -0.162      
3 N -0.162      
4 H -0.023      
5 H -0.023      


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 1.985 1.985
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.039 4.124 0.000
y 4.124 -16.638 0.000
z 0.000 0.000 -17.543
Traceless
 xyz
x 0.052 4.124 0.000
y 4.124 0.653 0.000
z 0.000 0.000 -0.705
Polar
3z2-r2-1.410
x2-y2-0.401
xy4.124
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.164 0.258 0.000
y 0.258 6.826 0.000
z 0.000 0.000 3.139


<r2> (average value of r2) Å2
<r2> 39.108
(<r2>)1/2 6.254