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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: B3LYP/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYP/LANL2DZ
 hartrees
Energy at 0K-148.746100
Energy at 298.15K-148.748306
HF Energy-148.746100
Nuclear repulsion energy59.330577
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 B3LYP/LANL2DZ
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 3689 3545 16.02      
2 A 1274 1224 0.02      
3 A 726 698 16.29      
4 A 637 613 196.61      
5 A 529 508 0.38      
6 B 3689 3545 233.55      
7 B 2257 2169 603.53      
8 B 721 693 615.55      
9 B 536 515 86.53      

Unscaled Zero Point Vibrational Energy (zpe) 7028.0 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 6755.3 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 B3LYP/LANL2DZ
ABC
16.47902 0.33359 0.33352

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.038
N2 0.000 1.231 -0.075
N3 0.000 -1.231 -0.075
H4 0.550 1.926 0.414
H5 -0.550 -1.926 0.414

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.23641.23642.03832.0383
N21.23642.46251.01253.2423
N31.23642.46253.24231.0125
H42.03831.01253.24234.0065
H52.03833.24231.01254.0065

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 129.747 C1 N3 H5 129.747
N2 C1 N3 169.488
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.101      
2 N -0.353      
3 N -0.353      
4 H 0.303      
5 H 0.303      


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 2.318 2.318
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.227 4.870 0.000
y 4.870 -14.323 0.000
z 0.000 0.000 -17.879
Traceless
 xyz
x -1.126 4.870 0.000
y 4.870 3.230 0.000
z 0.000 0.000 -2.104
Polar
3z2-r2-4.208
x2-y2-2.904
xy4.870
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.709 0.220 0.000
y 0.220 6.534 0.000
z 0.000 0.000 1.691


<r2> (average value of r2) Å2
<r2> 39.971
(<r2>)1/2 6.322