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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: B2PLYP/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 B2PLYP/6-311G**
 hartrees
Energy at 0K-148.686672
Energy at 298.15K-148.689066
HF Energy-148.525147
Nuclear repulsion energy60.035083
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/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 3616 3616 26.54      
2 A 1268 1268 0.01      
3 A 925 925 8.03      
4 A 737 737 100.57      
5 A 530 530 0.20      
6 B 3615 3615 116.51      
7 B 2224 2224 534.80      
8 B 919 919 446.41      
9 B 534 534 79.43      

Unscaled Zero Point Vibrational Energy (zpe) 7184.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7184.4 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/6-311G**
ABC
12.26511 0.34563 0.34562

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.020
N2 0.000 1.221 -0.081
N3 0.000 -1.221 -0.081
H4 0.627 1.754 0.508
H5 -0.627 -1.754 0.508

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22571.22571.92521.9252
N21.22572.44291.01183.0972
N31.22572.44293.09721.0118
H41.92521.01183.09723.7248
H51.92523.09721.01183.7248

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.423 C1 N3 H5 118.423
N2 C1 N3 170.480
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.392      
2 N -0.420      
3 N -0.420      
4 H 0.225      
5 H 0.225      


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 2.144 2.144
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.666 4.218 0.000
y 4.218 -16.381 0.000
z 0.000 0.000 -17.228
Traceless
 xyz
x 0.138 4.218 0.000
y 4.218 0.566 0.000
z 0.000 0.000 -0.704
Polar
3z2-r2-1.408
x2-y2-0.285
xy4.218
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.036 0.343 0.000
y 0.343 6.102 0.000
z 0.000 0.000 2.014


<r2> (average value of r2) Å2
<r2> 38.903
(<r2>)1/2 6.237