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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-311G*
 hartrees
Energy at 0K-148.648274
Energy at 298.15K-148.650637
HF Energy-148.648274
Nuclear repulsion energy59.722177
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 PBEPBEultrafine/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 3509 3473 14.16      
2 A 1253 1240 0.01      
3 A 915 905 8.99      
4 A 716 709 105.89      
5 A 523 518 0.48      
6 B 3510 3474 62.59      
7 B 2200 2177 481.04      
8 B 917 907 432.25      
9 B 526 520 67.20      

Unscaled Zero Point Vibrational Energy (zpe) 7034.4 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 6961.2 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 PBEPBEultrafine/6-311G*
ABC
12.36657 0.34204 0.34204

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.028
N2 0.000 1.226 -0.083
N3 0.000 -1.226 -0.083
H4 0.625 1.783 0.499
H5 -0.625 -1.783 0.499

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.23091.23091.94721.9472
N21.23092.45191.01973.1277
N31.23092.45193.12771.0197
H41.94721.01973.12773.7785
H51.94723.12771.01973.7785

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.514 C1 N3 H5 119.514
N2 C1 N3 169.684
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.474      
2 N -0.564      
3 N -0.564      
4 H 0.327      
5 H 0.327      


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 2.170 2.170
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.693 4.344 0.000
y 4.344 -15.848 0.000
z 0.000 0.000 -17.290
Traceless
 xyz
x -0.124 4.344 0.000
y 4.344 1.144 0.000
z 0.000 0.000 -1.020
Polar
3z2-r2-2.040
x2-y2-0.845
xy4.344
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.027 0.354 0.000
y 0.354 6.143 0.000
z 0.000 0.000 2.003


<r2> (average value of r2) Å2
<r2> 39.154
(<r2>)1/2 6.257