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 HN=C=C(CN)2 (Dicyanoketenimine)

using model chemistry: B3LYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/6-31G*
 hartrees
Energy at 0K-317.182213
Energy at 298.15K 
HF Energy-317.182213
Nuclear repulsion energy211.677955
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 B3LYP/6-31G*
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' 3507 3368 81.78 472.88 0.32 0.48
2 A' 2359 2265 7.73 198.91 0.13 0.22
3 A' 2163 2077 525.48 9.81 0.28 0.44
4 A' 1341 1288 4.75 43.75 0.22 0.35
5 A' 869 835 472.27 11.17 0.74 0.85
6 A' 658 632 2.33 13.19 0.11 0.19
7 A' 625 600 12.48 6.46 0.71 0.83
8 A' 587 564 0.24 0.13 0.33 0.49
9 A' 434 416 27.78 1.24 0.42 0.59
10 A' 176 169 7.84 0.23 0.69 0.82
11 A' 135 129 8.48 9.51 0.73 0.84
12 A" 2347 2253 23.72 175.56 0.75 0.86
13 A" 1226 1177 1.76 7.78 0.75 0.86
14 A" 739 709 93.70 1.73 0.75 0.86
15 A" 625 600 2.29 1.19 0.75 0.86
16 A" 421 405 8.70 6.60 0.75 0.86
17 A" 385 370 0.37 0.22 0.75 0.86
18 A" 131 126 0.02 10.94 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9363.3 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 8991.5 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 B3LYP/6-31G*
ABC
0.09337 0.09334 0.04685

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.007 -0.059 0.000
C2 -0.007 1.285 0.000
N3 0.133 2.483 0.000
C4 -0.007 -0.764 1.245
C5 -0.007 -0.764 -1.245
N6 -0.007 -1.335 2.258
N7 -0.007 -1.335 -2.258
H8 -0.659 3.128 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34402.54631.43021.43022.59342.59343.2532
C21.34401.20662.39692.39693.45843.45841.9552
N32.54631.20663.48013.48014.43804.43801.0210
C41.43022.39693.48012.48931.16323.54884.1375
C51.43022.39693.48012.48933.54881.16324.1375
N62.59343.45844.43801.16323.54884.51585.0439
N72.59343.45844.43803.54881.16324.51585.0439
H83.25321.95521.02104.13754.13755.04395.0439

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.356 C1 C4 N6 179.901
C1 C5 N7 179.901 C2 C1 C4 119.510
C2 C1 C5 119.510 C2 N3 H8 122.514
C4 C1 C5 120.979
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.021      
2 C 0.462      
3 N -0.621      
4 C 0.334      
5 C 0.334      
6 N -0.454      
7 N -0.454      
8 H 0.378      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.441 5.178 0.000 5.374
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.277 -4.786 0.000
y -4.786 -34.349 0.000
z 0.000 0.000 -51.707
Traceless
 xyz
x 5.751 -4.786 0.000
y -4.786 10.143 0.000
z 0.000 0.000 -15.894
Polar
3z2-r2-31.788
x2-y2-2.928
xy-4.786
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.548 -0.056 0.000
y -0.056 11.839 0.000
z 0.000 0.000 8.961


<r2> (average value of r2) Å2
<r2> 211.020
(<r2>)1/2 14.527