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All results from a given calculation for HN=C=C(CN)2 (Dicyanoketenimine)

using model chemistry: B3PW91/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 B3PW91/aug-cc-pVTZ
 hartrees
Energy at 0K-317.162599
Energy at 298.15K 
HF Energy-317.162599
Nuclear repulsion energy213.213659
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 B3PW91/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' 3543 3419 138.75 392.92 0.29 0.45
2 A' 2353 2271 8.28 288.88 0.09 0.16
3 A' 2168 2092 600.37 8.68 0.36 0.53
4 A' 1341 1294 1.81 43.26 0.18 0.30
5 A' 833 804 445.27 7.57 0.42 0.59
6 A' 659 636 2.36 19.26 0.05 0.10
7 A' 610 589 12.72 3.21 0.60 0.75
8 A' 591 571 0.43 0.57 0.61 0.76
9 A' 449 433 30.59 1.18 0.27 0.43
10 A' 175 169 7.44 0.20 0.67 0.80
11 A' 135 130 9.56 7.68 0.72 0.84
12 A" 2341 2259 32.93 190.38 0.75 0.86
13 A" 1228 1186 0.89 10.59 0.75 0.86
14 A" 735 709 77.01 0.60 0.75 0.86
15 A" 632 610 4.67 0.65 0.75 0.86
16 A" 418 404 7.30 2.42 0.75 0.86
17 A" 394 380 0.61 0.16 0.75 0.86
18 A" 132 127 0.00 8.57 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9368.2 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 9041.2 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 B3PW91/aug-cc-pVTZ
ABC
0.09488 0.09447 0.04750

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.007 -0.061 0.000
C2 -0.007 1.275 0.000
N3 0.130 2.462 0.000
C4 -0.007 -0.759 1.239
C5 -0.007 -0.759 -1.239
N6 -0.007 -1.323 2.244
N7 -0.007 -1.323 -2.244
H8 -0.644 3.120 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33622.52651.42201.42202.57462.57463.2440
C21.33621.19452.38212.38213.43333.43331.9515
N32.52651.19453.45403.45404.40254.40251.0152
C41.42202.38213.45402.47731.15263.52794.1219
C51.42202.38213.45402.47733.52791.15264.1219
N62.57463.43334.40251.15263.52794.48795.0183
N72.57463.43334.40253.52791.15264.48795.0183
H83.24401.95151.01524.12194.12195.01835.0183

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.442 C1 C4 N6 179.865
C1 C5 N7 179.865 C2 C1 C4 119.421
C2 C1 C5 119.421 C2 N3 H8 123.850
C4 C1 C5 121.159
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.037      
2 C 0.196      
3 N -0.458      
4 C 0.111      
5 C 0.111      
6 N -0.591      
7 N -0.591      
8 H 0.184      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.255 5.370 0.000 5.515
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.883 -4.385 0.000
y -4.385 -34.598 0.000
z 0.000 0.000 -52.991
Traceless
 xyz
x 5.911 -4.385 0.000
y -4.385 10.840 0.000
z 0.000 0.000 -16.751
Polar
3z2-r2-33.501
x2-y2-3.286
xy-4.385
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.724 0.024 0.000
y 0.024 13.274 0.000
z 0.000 0.000 10.673


<r2> (average value of r2) Å2
<r2> 208.939
(<r2>)1/2 14.455