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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: wB97X-D/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 wB97X-D/6-311G**
 hartrees
Energy at 0K-148.768993
Energy at 298.15K-148.771399
HF Energy-148.768993
Nuclear repulsion energy60.341781
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 wB97X-D/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 3648 3489 29.96      
2 A 1306 1249 0.11      
3 A 913 873 10.47      
4 A 741 709 107.15      
5 A 539 515 0.15      
6 B 3646 3487 135.60      
7 B 2267 2169 665.65      
8 B 914 874 438.13      
9 B 542 518 90.44      

Unscaled Zero Point Vibrational Energy (zpe) 7257.3 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 6941.6 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 wB97X-D/6-311G**
ABC
12.38640 0.34929 0.34919

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.011
N2 0.000 1.215 -0.078
N3 0.000 -1.215 -0.078
H4 0.626 1.745 0.512
H5 -0.626 -1.745 0.512

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.21821.21821.92081.9208
N21.21822.43011.01053.0827
N31.21822.43013.08271.0105
H41.92081.01053.08273.7085
H51.92083.08271.01053.7085

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.754 C1 N3 H5 118.754
N2 C1 N3 171.684
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.425      
2 N -0.450      
3 N -0.450      
4 H 0.237      
5 H 0.237      


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 2.199 2.199
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.502 4.310 0.000
y 4.310 -16.385 0.000
z 0.000 0.000 -17.059
Traceless
 xyz
x 0.220 4.310 0.000
y 4.310 0.396 0.000
z 0.000 0.000 -0.615
Polar
3z2-r2-1.231
x2-y2-0.117
xy4.310
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.027 0.328 0.000
y 0.328 5.931 0.000
z 0.000 0.000 1.996


<r2> (average value of r2) Å2
<r2> 38.552
(<r2>)1/2 6.209