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All results from a given calculation for C2H5CN (ethyl cyanide)

using model chemistry: wB97X-D/daug-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 wB97X-D/daug-cc-pVTZ
 hartrees
Energy at 0K-172.070241
Energy at 298.15K 
HF Energy-172.070241
Nuclear repulsion energy103.299560
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 wB97X-D/daug-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' 3149 3149 15.62 66.41 0.68 0.81
2 A' 3077 3077 6.15 108.50 0.06 0.12
3 A' 3068 3068 14.95 186.48 0.00 0.01
4 A' 2390 2390 12.14 87.51 0.15 0.25
5 A' 1511 1511 6.13 2.76 0.73 0.85
6 A' 1482 1482 6.15 7.43 0.69 0.82
7 A' 1427 1427 1.91 0.47 0.46 0.63
8 A' 1359 1359 3.39 2.49 0.43 0.60
9 A' 1102 1102 3.99 4.73 0.11 0.19
10 A' 1029 1029 0.51 4.37 0.40 0.57
11 A' 848 848 0.17 6.06 0.06 0.12
12 A' 556 556 0.80 1.38 0.15 0.26
13 A' 213 213 4.59 1.92 0.70 0.82
14 A" 3152 3152 14.70 19.20 0.75 0.86
15 A" 3116 3116 0.16 82.47 0.75 0.86
16 A" 1505 1505 8.25 4.90 0.75 0.86
17 A" 1299 1299 0.00 1.94 0.75 0.86
18 A" 1122 1122 0.44 0.07 0.75 0.86
19 A" 798 798 3.60 0.37 0.75 0.86
20 A" 395 395 0.49 1.26 0.75 0.86
21 A" 217 217 1.11 0.28 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16406.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16406.7 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 wB97X-D/daug-cc-pVTZ
ABC
0.94020 0.15771 0.14216

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.509 0.561 0.000
C2 0.000 0.810 0.000
C3 -0.768 -0.432 0.000
N4 -1.359 -1.416 0.000
H5 2.039 1.512 0.000
H6 1.810 -0.002 0.882
H7 1.810 -0.002 -0.882
H8 -0.296 1.386 0.877
H9 -0.296 1.386 -0.877

Atom - Atom Distances (Å)
  C1 C2 C3 N4 H5 H6 H7 H8 H9
C11.52982.48493.48321.08851.08821.08822.16992.1699
C21.52981.46072.60742.15642.17042.17041.09031.0903
C32.48491.46071.14673.41492.75862.75862.07362.0736
N43.48322.60741.14674.48493.58003.58003.12233.1223
H51.08852.15643.41494.48491.76661.76662.49702.4970
H61.08822.17042.75863.58001.76661.76392.52163.0744
H71.08822.17042.75863.58001.76661.76393.07442.5216
H82.16991.09032.07363.12232.49702.52163.07441.7539
H92.16991.09032.07363.12232.49703.07442.52161.7539

picture of ethyl cyanide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 112.374 C1 C2 H8 110.710
C1 C2 H9 110.710 C2 C1 H5 109.741
C2 C1 H6 110.874 C2 C1 H7 110.874
C2 C3 N4 179.252 C3 C2 H8 107.872
C3 C2 H9 107.872 H5 C1 H6 108.503
H5 C1 H7 108.503 H6 C1 H7 108.274
H8 C2 H9 107.095
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.078      
2 C 0.047      
3 C 0.521      
4 N -1.210      
5 H 0.384      
6 H 0.289      
7 H 0.289      
8 H 0.379      
9 H 0.379      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.366 3.429 0.000 4.166
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.257 -3.852 0.000
y -3.852 -27.701 0.000
z 0.000 0.000 -23.836
Traceless
 xyz
x -1.488 -3.852 0.000
y -3.852 -2.155 0.000
z 0.000 0.000 3.643
Polar
3z2-r27.286
x2-y20.444
xy-3.852
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.568 1.125 0.000
y 1.125 6.758 0.000
z 0.000 0.000 5.116


<r2> (average value of r2) Å2
<r2> 87.615
(<r2>)1/2 9.360