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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: HSEh1PBE/aug-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 HSEh1PBE/aug-cc-pVDZ
 hartrees
Energy at 0K-148.649623
Energy at 298.15K-148.652039
HF Energy-148.649623
Nuclear repulsion energy59.994062
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 HSEh1PBE/aug-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 3619 3482 23.56      
2 A 1297 1248 0.00      
3 A 934 898 10.50      
4 A 730 702 88.46      
5 A 540 520 0.22      
6 B 3617 3480 141.95      
7 B 2243 2158 690.15      
8 B 934 898 407.64      
9 B 544 523 73.00      

Unscaled Zero Point Vibrational Energy (zpe) 7227.8 cm-1
Scaled (by 0.9622) Zero Point Vibrational Energy (zpe) 6954.6 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 HSEh1PBE/aug-cc-pVDZ
ABC
12.14830 0.34542 0.34533

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.018
N2 0.000 1.222 -0.081
N3 0.000 -1.222 -0.081
H4 0.627 1.753 0.515
H5 -0.627 -1.753 0.515

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22611.22611.92631.9263
N21.22612.44401.01493.0978
N31.22612.44403.09781.0149
H41.92631.01493.09783.7224
H51.92633.09781.01493.7224

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.240 C1 N3 H5 118.240
N2 C1 N3 170.655
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.187      
2 N -0.119      
3 N -0.119      
4 H 0.026      
5 H 0.026      


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 1.991 1.991
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.037 4.139 0.000
y 4.139 -16.622 0.000
z 0.000 0.000 -17.545
Traceless
 xyz
x 0.047 4.139 0.000
y 4.139 0.669 0.000
z 0.000 0.000 -0.715
Polar
3z2-r2-1.431
x2-y2-0.415
xy4.139
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.077 0.265 0.000
y 0.265 6.809 0.000
z 0.000 0.000 3.049


<r2> (average value of r2) Å2
<r2> 39.120
(<r2>)1/2 6.255