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: PBE1PBE/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 PBE1PBE/6-31G**
 hartrees
Energy at 0K-316.811814
Energy at 298.15K 
HF Energy-316.811814
Nuclear repulsion energy212.188790
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 PBE1PBE/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' 3567 3400 111.96 420.10 0.31 0.48
2 A' 2391 2279 9.96 198.76 0.13 0.22
3 A' 2201 2098 560.94 9.19 0.33 0.49
4 A' 1364 1300 3.60 42.80 0.22 0.36
5 A' 852 812 481.29 9.82 0.75 0.86
6 A' 668 636 2.83 13.06 0.11 0.19
7 A' 631 602 15.81 6.37 0.71 0.83
8 A' 593 565 0.34 0.14 0.32 0.48
9 A' 442 422 32.70 1.19 0.45 0.62
10 A' 175 167 7.30 0.22 0.71 0.83
11 A' 134 128 8.45 9.50 0.73 0.84
12 A" 2381 2269 26.97 174.21 0.75 0.86
13 A" 1253 1194 1.18 7.36 0.75 0.86
14 A" 744 709 97.88 1.23 0.75 0.86
15 A" 630 601 2.61 1.24 0.75 0.86
16 A" 427 407 9.24 6.71 0.75 0.86
17 A" 392 373 0.43 0.26 0.75 0.86
18 A" 130 124 0.00 10.69 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9486.9 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 9041.9 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 PBE1PBE/6-31G**
ABC
0.09401 0.09363 0.04707

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.007 -0.061 0.000
C2 -0.007 1.280 0.000
N3 0.129 2.475 0.000
C4 -0.007 -0.762 1.242
C5 -0.007 -0.762 -1.242
N6 -0.007 -1.330 2.255
N7 -0.007 -1.330 -2.255
H8 -0.658 3.121 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34142.54011.42581.42582.58722.58723.2487
C21.34141.20282.38972.38973.44893.44891.9531
N32.54011.20283.46953.46954.42494.42491.0182
C41.42582.38973.46952.48391.16143.54284.1285
C51.42582.38973.46952.48393.54281.16144.1285
N62.58723.44894.42491.16143.54284.50995.0319
N72.58723.44894.42493.54281.16144.50995.0319
H83.24871.95311.01824.12854.12855.03195.0319

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.520 C1 C4 N6 179.864
C1 C5 N7 179.864 C2 C1 C4 119.416
C2 C1 C5 119.416 C2 N3 H8 122.916
C4 C1 C5 121.167
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.042      
2 C 0.492      
3 N -0.644      
4 C 0.353      
5 C 0.353      
6 N -0.454      
7 N -0.454      
8 H 0.398      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.462 5.263 0.000 5.462
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.374 -4.852 0.000
y -4.852 -33.957 0.000
z 0.000 0.000 -51.631
Traceless
 xyz
x 5.420 -4.852 0.000
y -4.852 10.546 0.000
z 0.000 0.000 -15.965
Polar
3z2-r2-31.931
x2-y2-3.417
xy-4.852
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.547 -0.029 0.000
y -0.029 11.703 0.000
z 0.000 0.000 8.936


<r2> (average value of r2) Å2
<r2> 210.042
(<r2>)1/2 14.493