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: B2PLYP=FULLultrafine/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULLultrafine/3-21G*
 hartrees
Energy at 0K-315.052262
Energy at 298.15K 
HF Energy-314.802281
Nuclear repulsion energy211.411438
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/3-21G*
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' 3508 3508 159.18 469.80 0.32 0.48
2 A' 2262 2262 1.65 134.92 0.12 0.21
3 A' 2201 2201 423.64 9.50 0.30 0.46
4 A' 1326 1326 0.62 46.30 0.27 0.42
5 A' 783 783 295.24 21.19 0.62 0.77
6 A' 737 737 361.10 4.04 0.36 0.53
7 A' 660 660 3.09 11.36 0.12 0.21
8 A' 625 625 0.14 0.70 0.11 0.19
9 A' 505 505 46.15 1.11 0.74 0.85
10 A' 187 187 3.07 0.64 0.74 0.85
11 A' 153 153 5.93 8.43 0.73 0.84
12 A" 2257 2257 9.32 127.49 0.75 0.86
13 A" 1203 1203 0.16 5.04 0.75 0.86
14 A" 774 774 108.26 1.03 0.75 0.86
15 A" 669 669 9.19 0.94 0.75 0.86
16 A" 496 496 11.32 5.97 0.75 0.86
17 A" 455 455 1.31 0.09 0.75 0.86
18 A" 150 150 0.40 10.68 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9475.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9475.8 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/3-21G*
ABC
0.09407 0.09241 0.04674

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.001 -0.054 0.000
C2 -0.001 1.289 0.000
N3 0.091 2.487 0.000
C4 -0.001 -0.762 1.235
C5 -0.001 -0.762 -1.235
N6 -0.001 -1.350 2.252
N7 -0.001 -1.350 -2.252
H8 -0.615 3.223 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34302.54311.42361.42362.59862.59863.3344
C21.34301.20192.39402.39403.46943.46942.0297
N32.54311.20193.47723.47724.45044.45041.0203
C41.42362.39403.47722.47041.17503.53694.2171
C51.42362.39403.47722.47043.53691.17504.2171
N62.59863.46944.45041.17503.53694.50495.1346
N72.59863.46944.45043.53691.17504.50495.1346
H83.33442.02971.02034.21714.21715.13465.1346

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.614 C1 C4 N6 179.782
C1 C5 N7 179.782 C2 C1 C4 119.811
C2 C1 C5 119.811 C2 N3 H8 131.770
C4 C1 C5 120.377
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.013      
2 C 0.580      
3 N -0.711      
4 C 0.336      
5 C 0.336      
6 N -0.444      
7 N -0.444      
8 H 0.361      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.492 5.796 0.000 5.985
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.169 -4.956 -0.000
y -4.956 -32.562 0.046
z -0.000 0.046 -51.971
Traceless
 xyz
x 4.098 -4.956 -0.000
y -4.956 12.508 0.046
z -0.000 0.046 -16.605
Polar
3z2-r2-33.210
x2-y2-5.607
xy-4.956
xz-0.000
yz0.046


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.670 -0.049 -0.000
y -0.049 11.083 -0.004
z -0.000 -0.004 7.726


<r2> (average value of r2) Å2
<r2> 211.476
(<r2>)1/2 14.542