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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: wB97X-D/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at wB97X-D/Def2TZVPP
 hartrees
Energy at 0K-148.792957
Energy at 298.15K-148.795373
HF Energy-148.792957
Nuclear repulsion energy60.436149
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 wB97X-D/Def2TZVPP
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 3655 3491 28.60      
2 A 1307 1249 0.02      
3 A 920 879 13.08      
4 A 733 700 97.30      
5 A 549 524 0.27      
6 B 3652 3488 158.76      
7 B 2252 2151 733.43      
8 B 920 879 441.14      
9 B 553 528 87.14      

Unscaled Zero Point Vibrational Energy (zpe) 7269.4 cm-1
Scaled (by 0.9552) Zero Point Vibrational Energy (zpe) 6943.7 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 wB97X-D/Def2TZVPP
ABC
12.60553 0.35013 0.35007

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/Def2TZVPP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.011
N2 0.000 1.213 -0.077
N3 0.000 -1.213 -0.077
H4 0.620 1.751 0.508
H5 -0.620 -1.751 0.508

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.21611.21611.92271.9227
N21.21612.42581.00823.0840
N31.21612.42583.08401.0082
H41.92271.00823.08403.7151
H51.92273.08401.00823.7151

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.336 C1 N3 H5 119.336
N2 C1 N3 171.640
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.179      
2 N -0.260      
3 N -0.260      
4 H 0.170      
5 H 0.170      


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 2.058 2.058
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.760 4.199 0.000
y 4.199 -16.322 0.000
z 0.000 0.000 -17.283
Traceless
 xyz
x 0.043 4.199 0.000
y 4.199 0.699 0.000
z 0.000 0.000 -0.742
Polar
3z2-r2-1.484
x2-y2-0.438
xy4.199
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.590 0.254 0.000
y 0.254 6.413 0.000
z 0.000 0.000 2.564


<r2> (average value of r2) Å2
<r2> 38.582
(<r2>)1/2 6.211