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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: BLYP/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 BLYP/6-311G*
 hartrees
Energy at 0K-148.787166
Energy at 298.15K-148.789530
HF Energy-148.787166
Nuclear repulsion energy59.636776
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/6-311G*
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 3470 3461 11.00      
2 A 1237 1234 0.00      
3 A 927 925 9.25      
4 A 717 716 102.88      
5 A 520 518 0.35      
6 B 3470 3462 49.41      
7 B 2165 2160 470.67      
8 B 927 925 443.45      
9 B 522 521 61.26      

Unscaled Zero Point Vibrational Energy (zpe) 6977.8 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 6960.3 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/6-311G*
ABC
12.38503 0.34099 0.34098

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/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 1.228 -0.083
N3 0.000 -1.228 -0.083
H4 0.624 1.788 0.499
H5 -0.624 -1.788 0.499

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.23271.23271.95131.9513
N21.23272.45531.02083.1339
N31.23272.45533.13391.0208
H41.95131.02083.13393.7871
H51.95133.13391.02083.7871

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.677 C1 N3 H5 119.677
N2 C1 N3 169.667
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.426      
2 N -0.529      
3 N -0.529      
4 H 0.316      
5 H 0.316      


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 2.154 2.154
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.764 4.291 0.000
y 4.291 -16.043 0.000
z 0.000 0.000 -17.350
Traceless
 xyz
x -0.067 4.291 0.000
y 4.291 1.014 0.000
z 0.000 0.000 -0.947
Polar
3z2-r2-1.894
x2-y2-0.721
xy4.291
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.036 0.380 0.000
y 0.380 6.179 0.000
z 0.000 0.000 2.008


<r2> (average value of r2) Å2
<r2> 39.313
(<r2>)1/2 6.270