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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: BLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at BLYP/6-31+G**
 hartrees
Energy at 0K-148.761205
Energy at 298.15K-148.763521
HF Energy-148.761205
Nuclear repulsion energy59.321534
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 BLYP/6-31+G**
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 3487 3468 16.62      
2 A 1235 1229 0.00      
3 A 883 879 6.20      
4 A 700 697 104.88      
5 A 511 509 0.18      
6 B 3487 3468 95.76      
7 B 2145 2134 569.27      
8 B 882 878 419.65      
9 B 507 505 63.36      

Unscaled Zero Point Vibrational Energy (zpe) 6919.0 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 6882.3 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 BLYP/6-31+G**
ABC
12.17207 0.33753 0.33734

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.036
N2 0.000 1.234 -0.087
N3 0.000 -1.234 -0.087
H4 0.623 1.794 0.500
H5 -0.623 -1.794 0.500

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.24041.24041.95541.9554
N21.24042.46871.02293.1473
N31.24042.46873.14731.0229
H41.95541.02293.14733.7990
H51.95543.14731.02293.7990

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.214 C1 N3 H5 119.214
N2 C1 N3 168.655
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.505      
2 N -0.546      
3 N -0.546      
4 H 0.294      
5 H 0.294      


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 2.197 2.197
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.320 4.501 0.000
y 4.501 -16.733 0.000
z 0.000 0.000 -17.904
Traceless
 xyz
x -0.001 4.501 0.000
y 4.501 0.879 0.000
z 0.000 0.000 -0.878
Polar
3z2-r2-1.756
x2-y2-0.587
xy4.501
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.576 0.203 0.000
y 0.203 7.121 0.000
z 0.000 0.000 2.568


<r2> (average value of r2) Å2
<r2> 39.977
(<r2>)1/2 6.323