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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: LSDA/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at LSDA/6-311G*
 hartrees
Energy at 0K-148.011368
Energy at 298.15K-148.013710
HF Energy-148.011368
Nuclear repulsion energy60.184532
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 LSDA/6-311G*
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 3550 3492 25.11      
2 A 1297 1276 0.13      
3 A 856 842 16.52      
4 A 678 667 122.02      
5 A 538 529 2.00      
6 B 3549 3491 130.50      
7 B 2279 2241 528.88      
8 B 867 853 450.44      
9 B 540 532 80.82      

Unscaled Zero Point Vibrational Energy (zpe) 7076.7 cm-1
Scaled (by 0.9837) Zero Point Vibrational Energy (zpe) 6961.4 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 LSDA/6-311G*
ABC
13.32293 0.34687 0.34676

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.021
N2 0.000 1.214 -0.078
N3 0.000 -1.214 -0.078
H4 0.608 1.808 0.483
H5 -0.608 -1.808 0.483

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.21811.21811.96231.9623
N21.21812.42831.01823.1329
N31.21812.42833.13291.0182
H41.96231.01823.13293.8140
H51.96233.13291.01823.8140

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 122.427 C1 N3 H5 122.427
N2 C1 N3 170.716
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.470      
2 N -0.583      
3 N -0.583      
4 H 0.348      
5 H 0.348      


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 2.200 2.200
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.779 4.491 0.000
y 4.491 -15.230 0.000
z 0.000 0.000 -17.380
Traceless
 xyz
x -0.474 4.491 0.000
y 4.491 1.850 0.000
z 0.000 0.000 -1.376
Polar
3z2-r2-2.751
x2-y2-1.550
xy4.491
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.975 0.313 0.000
y 0.313 6.072 0.000
z 0.000 0.000 1.947


<r2> (average value of r2) Å2
<r2> 38.749
(<r2>)1/2 6.225