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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: BLYP/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-148.816182
Energy at 298.15K-148.818542
HF Energy-148.816182
Nuclear repulsion energy59.753464
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/aug-cc-pVTZ
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 3483 3471 17.78      
2 A 1238 1234 0.02      
3 A 908 905 11.66      
4 A 694 691 83.19      
5 A 524 522 0.42      
6 B 3481 3469 105.68      
7 B 2144 2136 587.89      
8 B 905 902 418.29      
9 B 528 526 58.61      

Unscaled Zero Point Vibrational Energy (zpe) 6951.5 cm-1
Scaled (by 0.9966) Zero Point Vibrational Energy (zpe) 6927.8 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/aug-cc-pVTZ
ABC
12.55253 0.34223 0.34210

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

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 1.789 0.498
H5 -0.616 -1.789 0.498

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.23021.23021.95011.9501
N21.23022.45031.01803.1315
N31.23022.45033.13151.0180
H41.95011.01803.13153.7853
H51.95013.13151.01803.7853

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 120.020 C1 N3 H5 120.020
N2 C1 N3 169.602
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.165      
2 N -0.212      
3 N -0.212      
4 H 0.129      
5 H 0.129      


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 1.881 1.881
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.319 4.020 0.000
y 4.020 -16.492 0.000
z 0.000 0.000 -17.822
Traceless
 xyz
x -0.162 4.020 0.000
y 4.020 1.079 0.000
z 0.000 0.000 -0.916
Polar
3z2-r2-1.832
x2-y2-0.827
xy4.020
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.316 0.272 0.000
y 0.272 7.215 0.000
z 0.000 0.000 3.288


<r2> (average value of r2) Å2
<r2> 39.527
(<r2>)1/2 6.287