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: HSEh1PBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/6-31G(2df,p)
 hartrees
Energy at 0K-316.862863
Energy at 298.15K 
HF Energy-316.862863
Nuclear repulsion energy212.935412
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 HSEh1PBE/6-31G(2df,p)
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' 3579 3427 134.27 394.74 0.31 0.47
2 A' 2382 2281 8.80 207.69 0.11 0.20
3 A' 2196 2103 555.05 7.51 0.36 0.53
4 A' 1354 1296 1.63 40.07 0.21 0.35
5 A' 831 796 447.81 7.39 0.71 0.83
6 A' 666 637 2.25 14.40 0.09 0.16
7 A' 636 609 17.31 3.87 0.68 0.81
8 A' 595 570 0.17 0.25 0.47 0.64
9 A' 459 440 35.47 1.26 0.43 0.60
10 A' 181 173 7.89 0.24 0.70 0.83
11 A' 135 130 9.17 8.09 0.73 0.84
12 A" 2371 2271 27.98 165.26 0.75 0.86
13 A" 1243 1190 0.85 7.32 0.75 0.86
14 A" 743 712 82.20 1.15 0.75 0.86
15 A" 634 607 3.42 0.81 0.75 0.86
16 A" 436 418 8.10 3.84 0.75 0.86
17 A" 402 385 0.60 0.18 0.75 0.86
18 A" 131 126 0.02 9.31 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9486.5 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 9085.2 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 HSEh1PBE/6-31G(2df,p)
ABC
0.09474 0.09417 0.04739

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.006 -0.062 0.000
C2 -0.006 1.275 0.000
N3 0.125 2.465 0.000
C4 -0.006 -0.759 1.239
C5 -0.006 -0.759 -1.239
N6 -0.006 -1.324 2.248
N7 -0.006 -1.324 -2.248
H8 -0.656 3.114 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33692.53051.42221.42222.57822.57823.2415
C21.33691.19732.38232.38233.43663.43661.9503
N32.53051.19733.45713.45714.40814.40811.0155
C41.42222.38233.45712.47861.15613.53284.1183
C51.42222.38233.45712.47863.53281.15614.1183
N62.57823.43664.40811.15613.53284.49615.0172
N72.57823.43664.40813.53281.15614.49615.0172
H83.24151.95031.01554.11834.11835.01725.0172

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.720 C1 C4 N6 179.875
C1 C5 N7 179.875 C2 C1 C4 119.373
C2 C1 C5 119.373 C2 N3 H8 123.405
C4 C1 C5 121.254
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.204      
2 C 0.463      
3 N -0.498      
4 C 0.283      
5 C 0.283      
6 N -0.330      
7 N -0.330      
8 H 0.334      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.311 5.236 0.000 5.397
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.057 -4.450 0.000
y -4.450 -33.843 0.000
z 0.000 0.000 -51.578
Traceless
 xyz
x 5.653 -4.450 0.000
y -4.450 10.475 0.000
z 0.000 0.000 -16.128
Polar
3z2-r2-32.256
x2-y2-3.214
xy-4.450
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.202 -0.065 0.000
y -0.065 11.931 0.000
z 0.000 0.000 9.293


<r2> (average value of r2) Å2
<r2> 208.710
(<r2>)1/2 14.447