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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: TPSSh/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-148.848813
Energy at 298.15K-148.851221
HF Energy-148.848813
Nuclear repulsion energy60.127857
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/aug-cc-pVTZ
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 3572 3447 20.86      
2 A 1273 1229 0.01      
3 A 931 899 10.29      
4 A 726 701 86.68      
5 A 539 520 0.37      
6 B 3570 3445 122.26      
7 B 2205 2128 633.15      
8 B 925 892 426.22      
9 B 543 524 70.80      

Unscaled Zero Point Vibrational Energy (zpe) 7141.4 cm-1
Scaled (by 0.9652) Zero Point Vibrational Energy (zpe) 6892.9 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/aug-cc-pVTZ
ABC
12.47053 0.34675 0.34666

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/aug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.024
N2 0.000 1.218 -0.082
N3 0.000 -1.218 -0.082
H4 0.619 1.766 0.503
H5 -0.619 -1.766 0.503

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22281.22281.93121.9312
N21.22282.43641.01253.1030
N31.22282.43643.10301.0125
H41.93121.01253.10303.7420
H51.93123.10301.01253.7420

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.231 C1 N3 H5 119.231
N2 C1 N3 170.023
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.215      
2 N -0.244      
3 N -0.244      
4 H 0.136      
5 H 0.136      


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 1.930 1.930
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 3.158 0.269 0.000
y 0.269 6.875 0.000
z 0.000 0.000 3.129


<r2> (average value of r2) Å2
<r2> 38.954
(<r2>)1/2 6.241