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

using model chemistry: wB97X-D/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-172.016230
Energy at 298.15K 
HF Energy-172.016230
Nuclear repulsion energy102.648922
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/cc-pVDZ
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' 3165 3015 13.82 79.73 0.71 0.83
2 A' 3079 2933 6.41 122.90 0.07 0.13
3 A' 3069 2924 17.91 119.84 0.01 0.01
4 A' 2395 2282 9.28 57.72 0.26 0.42
5 A' 1487 1416 5.85 8.47 0.74 0.85
6 A' 1456 1387 5.35 13.77 0.73 0.84
7 A' 1410 1343 1.00 1.71 0.43 0.60
8 A' 1347 1284 4.31 2.77 0.53 0.69
9 A' 1097 1045 3.60 4.26 0.16 0.28
10 A' 1040 991 0.96 4.39 0.52 0.69
11 A' 856 815 0.22 5.03 0.13 0.23
12 A' 552 526 0.91 1.64 0.36 0.53
13 A' 214 203 3.61 2.65 0.73 0.84
14 A" 3167 3017 12.60 29.78 0.75 0.86
15 A" 3127 2979 0.69 101.21 0.75 0.86
16 A" 1478 1408 7.85 14.33 0.75 0.86
17 A" 1284 1223 0.02 4.95 0.75 0.86
18 A" 1108 1055 0.64 0.08 0.75 0.86
19 A" 794 756 4.28 0.40 0.75 0.86
20 A" 398 379 0.13 2.72 0.75 0.86
21 A" 227 217 0.78 0.52 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16374.6 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 15598.5 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/cc-pVDZ
ABC
0.93162 0.15590 0.14062

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.513 0.570 0.000
C2 0.000 0.813 0.000
C3 -0.768 -0.436 0.000
N4 -1.363 -1.430 0.000
H5 2.044 1.532 0.000
H6 1.820 0.004 0.890
H7 1.820 0.004 -0.890
H8 -0.303 1.394 0.885
H9 -0.303 1.394 -0.885

Atom - Atom Distances (Å)
  C1 C2 C3 N4 H5 H6 H7 H8 H9
C11.53202.49323.50311.09911.09911.09912.18132.1813
C21.53201.46652.62492.16672.18142.18141.10091.1009
C32.49321.46651.15853.43272.77202.77202.08532.0853
N43.50312.62491.15854.51493.60263.60263.14373.1437
H51.09912.16673.43274.51491.78331.78332.51182.5118
H61.09912.18142.77203.60261.78331.78092.53743.0967
H71.09912.18142.77203.60261.78331.78093.09672.5374
H82.18131.10092.08533.14372.51182.53743.09671.7693
H92.18131.10092.08533.14372.51183.09672.53741.7693

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 112.482 C1 C2 H8 110.822
C1 C2 H9 110.822 C2 C1 H5 109.776
C2 C1 H6 110.938 C2 C1 H7 110.938
C2 C3 N4 179.281 C3 C2 H8 107.773
C3 C2 H9 107.773 H5 C1 H6 108.440
H5 C1 H7 108.440 H6 C1 H7 108.231
H8 C2 H9 106.940
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.081      
2 C -0.066      
3 C -0.098      
4 N -0.119      
5 H 0.054      
6 H 0.066      
7 H 0.066      
8 H 0.089      
9 H 0.089      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.215 3.219 0.000 3.908
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.754 -3.553 0.000
y -3.553 -27.118 0.000
z 0.000 0.000 -23.620
Traceless
 xyz
x -1.385 -3.553 0.000
y -3.553 -1.931 0.000
z 0.000 0.000 3.316
Polar
3z2-r26.632
x2-y20.364
xy-3.553
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.466 1.139 0.000
y 1.139 5.882 0.000
z 0.000 0.000 4.153


<r2> (average value of r2) Å2
<r2> 88.157
(<r2>)1/2 9.389