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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: BLYP/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-148.812729
Energy at 298.15K-148.815082
HF Energy-148.812729
Nuclear repulsion energy59.755965
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/6-311+G(3df,2p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3489 3470 18.87      
2 A 1240 1233 0.02      
3 A 900 895 11.28      
4 A 693 690 85.51      
5 A 524 521 0.39      
6 B 3488 3469 107.55      
7 B 2149 2137 585.03      
8 B 898 893 418.99      
9 B 527 524 60.36      

Unscaled Zero Point Vibrational Energy (zpe) 6953.4 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 6915.2 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 BLYP/6-311+G(3df,2p)
ABC
12.58924 0.34225 0.34213

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311+G(3df,2p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.028
N2 0.000 1.225 -0.083
N3 0.000 -1.225 -0.083
H4 0.616 1.792 0.497
H5 -0.616 -1.792 0.497

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22991.22991.95191.9519
N21.22992.44981.01863.1333
N31.22992.44983.13331.0186
H41.95191.01863.13333.7896
H51.95193.13331.01863.7896

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 120.187 C1 N3 H5 120.187
N2 C1 N3 169.596
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.127      
2 N -0.791      
3 N -0.791      
4 H 0.228      
5 H 0.228      


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 1.912 1.912
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.322 4.077 0.000
y 4.077 -16.476 0.000
z 0.000 0.000 -17.827
Traceless
 xyz
x -0.170 4.077 0.000
y 4.077 1.098 0.000
z 0.000 0.000 -0.928
Polar
3z2-r2-1.856
x2-y2-0.846
xy4.077
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.149 0.249 0.000
y 0.249 7.123 0.000
z 0.000 0.000 3.123


<r2> (average value of r2) Å2
<r2> 39.529
(<r2>)1/2 6.287