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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: B1B95/aug-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 B1B95/aug-cc-pVDZ
 hartrees
Energy at 0K-148.753372
Energy at 298.15K-148.755780
HF Energy-148.753372
Nuclear repulsion energy60.015872
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 B1B95/aug-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 3610 3458 23.05      
2 A 1293 1239 0.00      
3 A 929 890 9.96      
4 A 728 697 87.81      
5 A 537 514 0.25      
6 B 3608 3456 139.91      
7 B 2238 2144 682.57      
8 B 929 890 404.14      
9 B 540 517 71.92      

Unscaled Zero Point Vibrational Energy (zpe) 7205.4 cm-1
Scaled (by 0.9579) Zero Point Vibrational Energy (zpe) 6902.0 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 B1B95/aug-cc-pVDZ
ABC
12.14484 0.34566 0.34560

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.019
N2 0.000 1.222 -0.082
N3 0.000 -1.222 -0.082
H4 0.627 1.751 0.514
H5 -0.627 -1.751 0.514

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22571.22571.92491.9249
N21.22572.44321.01423.0961
N31.22572.44323.09611.0142
H41.92491.01423.09613.7204
H51.92493.09611.01423.7204

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.174 C1 N3 H5 118.174
N2 C1 N3 170.580
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.139      
2 N -0.071      
3 N -0.071      
4 H 0.002      
5 H 0.002      


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 1.979 1.979
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.985 4.115 0.000
y 4.115 -16.610 0.000
z 0.000 0.000 -17.502
Traceless
 xyz
x 0.071 4.115 0.000
y 4.115 0.633 0.000
z 0.000 0.000 -0.704
Polar
3z2-r2-1.408
x2-y2-0.375
xy4.115
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.066 0.271 0.000
y 0.271 6.813 0.000
z 0.000 0.000 3.038


<r2> (average value of r2) Å2
<r2> 39.075
(<r2>)1/2 6.251