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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/cc-pVDZ
 hartrees
Energy at 0K-148.649662
Energy at 298.15K 
HF Energy-148.494333
Nuclear repulsion energy59.647809
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 B2PLYP=FULLultrafine/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 3581 3431 24.71      
2 A 1264 1211 0.00      
3 A 956 916 7.06      
4 A 749 718 86.02      
5 A 517 495 0.16      
6 B 3581 3432 94.32      
7 B 2219 2126 483.42      
8 B 948 908 405.69      
9 B 522 500 67.78      

Unscaled Zero Point Vibrational Energy (zpe) 7167.9 cm-1
Scaled (by 0.9582) Zero Point Vibrational Energy (zpe) 6868.3 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 B2PLYP=FULLultrafine/cc-pVDZ
ABC
11.64156 0.34187 0.34179

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.022
N2 0.000 1.230 -0.084
N3 0.000 -1.230 -0.084
H4 0.639 1.742 0.523
H5 -0.639 -1.742 0.523

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.23451.23451.92261.9226
N21.23452.45991.01993.1003
N31.23452.45993.10031.0199
H41.92261.01993.10033.7119
H51.92263.10031.01993.7119

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 116.718 C1 N3 H5 116.718
N2 C1 N3 170.189
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.119      
2 N -0.199      
3 N -0.199      
4 H 0.139      
5 H 0.139      


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 2.063 2.063
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.479 3.980 0.000
y 3.980 -16.221 0.000
z 0.000 0.000 -17.006
Traceless
 xyz
x 0.135 3.980 0.000
y 3.980 0.521 0.000
z 0.000 0.000 -0.656
Polar
3z2-r2-1.312
x2-y2-0.258
xy3.980
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.950 0.414 0.000
y 0.414 5.926 0.000
z 0.000 0.000 1.920


<r2> (average value of r2) Å2
<r2> 39.066
(<r2>)1/2 6.250