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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: PBEPBEultrafine/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBEultrafine/daug-cc-pVDZ
 hartrees
Energy at 0K-148.641409
Energy at 298.15K-148.643765
HF Energy-148.641409
Nuclear repulsion energy59.424906
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 PBEPBEultrafine/daug-cc-pVDZ
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 3497 3497 17.99      
2 A 1243 1243 0.02      
3 A 912 912 8.69      
4 A 699 699 80.56      
5 A 516 516 0.44      
6 B 3497 3497 102.55      
7 B 2168 2168 555.65      
8 B 911 911 378.40      
9 B 519 519 60.07      

Unscaled Zero Point Vibrational Energy (zpe) 6980.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6980.7 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 PBEPBEultrafine/daug-cc-pVDZ
ABC
11.89991 0.33911 0.33890

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/daug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.030
N2 0.000 1.233 -0.086
N3 0.000 -1.233 -0.086
H4 0.629 1.775 0.513
H5 -0.629 -1.775 0.513

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.23831.23831.94361.9436
N21.23832.46571.02363.1302
N31.23832.46573.13021.0236
H41.94361.02363.13023.7655
H51.94363.13021.02363.7655

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.159 C1 N3 H5 118.159
N2 C1 N3 169.225
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.365      
2 N -0.123      
3 N -0.123      
4 H -0.059      
5 H -0.059      


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 1.903 1.903
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.223 4.043 0.000
y 4.043 -16.490 0.000
z 0.000 0.000 -17.732
Traceless
 xyz
x -0.112 4.043 0.000
y 4.043 0.988 0.000
z 0.000 0.000 -0.876
Polar
3z2-r2-1.751
x2-y2-0.733
xy4.043
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.331 0.281 0.000
y 0.281 7.198 0.000
z 0.000 0.000 3.308


<r2> (average value of r2) Å2
<r2> 39.713
(<r2>)1/2 6.302