return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: B97D3/daug-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 B97D3/daug-cc-pVDZ
 hartrees
Energy at 0K-148.721487
Energy at 298.15K-148.723859
HF Energy-148.721487
Nuclear repulsion energy59.551406
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 B97D3/daug-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 3506 3506 15.33      
2 A 1242 1242 0.03      
3 A 936 936 8.25      
4 A 707 707 79.77      
5 A 517 517 0.23      
6 B 3506 3506 89.28      
7 B 2165 2165 564.13      
8 B 933 933 381.61      
9 B 520 520 57.42      

Unscaled Zero Point Vibrational Energy (zpe) 7015.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7015.5 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 B97D3/daug-cc-pVDZ
ABC
11.89616 0.34052 0.34030

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/daug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.030
N2 0.000 1.231 -0.086
N3 0.000 -1.231 -0.086
H4 0.629 1.765 0.514
H5 -0.629 -1.765 0.514

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.23631.23631.93501.9350
N21.23632.46171.01973.1192
N31.23632.46173.11921.0197
H41.93501.01973.11923.7470
H51.93503.11921.01973.7470

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 117.801 C1 N3 H5 117.801
N2 C1 N3 169.262
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.113      
2 N -0.004      
3 N -0.004      
4 H -0.053      
5 H -0.053      


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 1.906 1.906
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.098 4.006 0.000
y 4.006 -16.569 0.000
z 0.000 0.000 -17.598
Traceless
 xyz
x -0.015 4.006 0.000
y 4.006 0.779 0.000
z 0.000 0.000 -0.764
Polar
3z2-r2-1.528
x2-y2-0.529
xy4.006
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.319 0.274 0.000
y 0.274 7.135 0.000
z 0.000 0.000 3.297


<r2> (average value of r2) Å2
<r2> 39.540
(<r2>)1/2 6.288