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: HF/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/aug-cc-pVTZ
 hartrees
Energy at 0K-315.438406
Energy at 298.15K 
HF Energy-315.438406
Nuclear repulsion energy214.998232
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 HF/aug-cc-pVTZ
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' 3759 3422 253.70 234.95 0.28 0.44
2 A' 2587 2355 27.95 253.69 0.07 0.14
3 A' 2269 2066 967.99 9.05 0.73 0.85
4 A' 1435 1307 0.19 44.10 0.18 0.31
5 A' 877 798 474.65 7.17 0.60 0.75
6 A' 691 629 0.92 14.32 0.06 0.11
7 A' 679 618 47.12 7.71 0.41 0.58
8 A' 649 590 0.29 0.29 0.05 0.09
9 A' 504 459 64.30 1.45 0.31 0.47
10 A' 189 172 10.01 0.31 0.71 0.83
11 A' 152 138 12.00 6.71 0.72 0.83
12 A" 2580 2349 58.27 141.30 0.75 0.86
13 A" 1307 1190 4.23 8.33 0.75 0.86
14 A" 806 734 89.60 0.08 0.75 0.86
15 A" 695 633 6.29 1.73 0.75 0.86
16 A" 473 430 8.55 3.55 0.75 0.86
17 A" 442 402 1.09 0.17 0.75 0.86
18 A" 151 137 0.20 7.47 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10121.7 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 9214.8 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 HF/aug-cc-pVTZ
ABC
0.09656 0.09524 0.04811

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -0.055 0.000
C2 0.001 1.269 0.000
N3 0.094 2.443 0.000
C4 0.001 -0.760 1.245
C5 0.001 -0.760 -1.245
N6 0.001 -1.308 2.229
N7 0.001 -1.308 -2.229
H8 -0.700 3.052 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.32432.49981.43011.43012.55732.55733.1857
C21.32431.17752.38002.38003.40753.40751.9161
N32.49981.17753.43703.43704.36434.36431.0010
C41.43012.38003.43702.48941.12713.51724.0708
C51.43012.38003.43702.48943.51721.12714.0708
N62.55733.40754.36431.12713.51724.45894.9471
N72.55733.40754.36433.51721.12714.45894.9471
H83.18571.91611.00104.07084.07084.94714.9471

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.449 C1 C4 N6 179.606
C1 C5 N7 179.606 C2 C1 C4 119.503
C2 C1 C5 119.503 C2 N3 H8 122.968
C4 C1 C5 120.993
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.355      
2 C 0.134      
3 N -0.538      
4 C -0.035      
5 C -0.035      
6 N -0.566      
7 N -0.566      
8 H 0.252      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.421 5.484 0.000 5.665
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.178 -4.825 0.000
y -4.825 -36.055 0.000
z 0.000 0.000 -54.451
Traceless
 xyz
x 7.076 -4.825 0.000
y -4.825 10.259 0.000
z 0.000 0.000 -17.335
Polar
3z2-r2-34.670
x2-y2-2.123
xy-4.825
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.490 -0.045 0.000
y -0.045 12.211 0.000
z 0.000 0.000 9.577


<r2> (average value of r2) Å2
<r2> 207.163
(<r2>)1/2 14.393