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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: TPSSh/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 TPSSh/6-311G*
 hartrees
Energy at 0K-148.820961
Energy at 298.15K-148.823372
HF Energy-148.820961
Nuclear repulsion energy60.028112
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 TPSSh/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 3571 3439 14.96      
2 A 1273 1226 0.02      
3 A 949 914 8.34      
4 A 751 724 109.43      
5 A 535 516 0.18      
6 B 3571 3439 66.59      
7 B 2225 2143 543.27      
8 B 947 912 460.66      
9 B 537 517 74.63      

Unscaled Zero Point Vibrational Energy (zpe) 7179.3 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 6915.1 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 TPSSh/6-311G*
ABC
12.40345 0.34557 0.34554

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.024
N2 0.000 1.220 -0.082
N3 0.000 -1.220 -0.082
H4 0.625 1.766 0.501
H5 -0.625 -1.766 0.501

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22501.22501.93301.9330
N21.22502.44081.01373.1064
N31.22502.44083.10641.0137
H41.93301.01373.10643.7467
H51.93303.10641.01373.7467

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.108 C1 N3 H5 119.108
N2 C1 N3 170.044
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.555      
2 N -0.609      
3 N -0.609      
4 H 0.331      
5 H 0.331      


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 2.224 2.224
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.004 0.350 0.000
y 0.350 6.051 0.000
z 0.000 0.000 1.976


<r2> (average value of r2) Å2
<r2> 38.854
(<r2>)1/2 6.233