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/6-311G**

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/6-311G**
 hartrees
Energy at 0K-317.268720
Energy at 298.15K 
HF Energy-317.268720
Nuclear repulsion energy212.686049
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/6-311G**
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' 3519 3403 114.55 452.73 0.31 0.48
2 A' 2350 2272 7.65 215.47 0.12 0.21
3 A' 2159 2087 558.01 8.21 0.33 0.50
4 A' 1334 1290 3.51 43.11 0.21 0.34
5 A' 848 820 454.70 8.11 0.75 0.86
6 A' 656 634 2.45 13.94 0.10 0.18
7 A' 627 606 14.45 5.79 0.68 0.81
8 A' 595 575 0.36 0.10 0.51 0.68
9 A' 447 432 31.04 1.21 0.39 0.57
10 A' 178 172 6.60 0.23 0.70 0.82
11 A' 138 133 8.43 9.00 0.73 0.84
12 A" 2338 2261 25.96 174.43 0.75 0.86
13 A" 1220 1179 1.44 8.04 0.75 0.86
14 A" 738 713 88.04 1.06 0.75 0.86
15 A" 635 614 3.81 1.03 0.75 0.86
16 A" 426 412 8.39 5.60 0.75 0.86
17 A" 396 383 0.50 0.24 0.75 0.86
18 A" 135 131 0.00 10.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9369.4 cm-1
Scaled (by 0.9668) Zero Point Vibrational Energy (zpe) 9058.4 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/6-311G**
ABC
0.09427 0.09413 0.04726

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.006 -0.058 0.000
C2 -0.006 1.281 0.000
N3 0.127 2.472 0.000
C4 -0.006 -0.762 1.241
C5 -0.006 -0.762 -1.241
N6 -0.006 -1.330 2.246
N7 -0.006 -1.330 -2.246
H8 -0.658 3.120 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33912.53351.42601.42602.58092.58093.2447
C21.33911.19832.38962.38963.44373.44371.9515
N32.53351.19833.46563.46564.41744.41741.0181
C41.42602.38963.46562.48101.15493.53244.1270
C51.42602.38963.46562.48103.53241.15494.1270
N62.58093.44374.41741.15493.53244.49195.0271
N72.58093.44374.41743.53241.15494.49195.0271
H83.24471.95151.01814.12704.12705.02715.0271

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.624 C1 C4 N6 179.923
C1 C5 N7 179.923 C2 C1 C4 119.550
C2 C1 C5 119.550 C2 N3 H8 123.191
C4 C1 C5 120.900
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.007      
2 C 0.307      
3 N -0.339      
4 C 0.086      
5 C 0.086      
6 N -0.202      
7 N -0.202      
8 H 0.256      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.384 5.318 0.000 5.495
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.922 -4.660 0.000
y -4.660 -34.673 0.000
z 0.000 0.000 -52.407
Traceless
 xyz
x 5.619 -4.660 0.000
y -4.660 10.491 0.000
z 0.000 0.000 -16.109
Polar
3z2-r2-32.219
x2-y2-3.248
xy-4.660
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.954 -0.041 0.000
y -0.041 11.997 0.000
z 0.000 0.000 9.224


<r2> (average value of r2) Å2
<r2> 209.739
(<r2>)1/2 14.482