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

using model chemistry: SVWN/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at SVWN/6-311+G(3df,2p)
 hartrees
Energy at 0K-171.153375
Energy at 298.15K 
HF Energy-171.153375
Nuclear repulsion energy103.616369
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 SVWN/6-311+G(3df,2p)
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' 3071 3071 5.73 74.25 0.69 0.81
2 A' 2986 2986 10.76 117.73 0.01 0.02
3 A' 2969 2969 1.37 191.03 0.03 0.06
4 A' 2321 2321 14.89 103.28 0.18 0.31
5 A' 1431 1431 9.26 3.18 0.73 0.84
6 A' 1391 1391 10.06 8.64 0.63 0.77
7 A' 1345 1345 4.78 0.67 0.61 0.76
8 A' 1288 1288 2.22 3.12 0.49 0.66
9 A' 1062 1062 3.61 6.76 0.15 0.26
10 A' 1025 1025 1.12 1.26 0.75 0.85
11 A' 853 853 0.67 4.63 0.07 0.13
12 A' 544 544 1.05 1.37 0.20 0.33
13 A' 203 203 4.03 2.01 0.72 0.84
14 A" 3070 3070 4.42 31.59 0.75 0.86
15 A" 3005 3005 0.01 82.87 0.75 0.86
16 A" 1422 1422 11.27 5.40 0.75 0.86
17 A" 1228 1228 0.15 1.94 0.75 0.86
18 A" 1056 1056 0.44 0.22 0.75 0.86
19 A" 754 754 5.66 0.49 0.75 0.86
20 A" 388 388 0.17 1.23 0.75 0.86
21 A" 214 214 1.00 0.38 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 15812.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15812.0 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 SVWN/6-311+G(3df,2p)
ABC
0.94139 0.16008 0.14419

See section I.F.4 to change rotational constant units
Geometric Data calculated at SVWN/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.494 0.554 0.000
C2 0.000 0.802 0.000
C3 -0.759 -0.420 0.000
N4 -1.350 -1.411 0.000
H5 2.038 1.507 0.000
H6 1.798 -0.016 0.887
H7 1.798 -0.016 -0.887
H8 -0.300 1.392 0.881
H9 -0.300 1.392 -0.881

Atom - Atom Distances (Å)
  C1 C2 C3 N4 H5 H6 H7 H8 H9
C11.51462.45443.45711.09711.09721.09722.16702.1670
C21.51461.43792.59222.15692.16542.16541.10211.1021
C32.45441.43791.15443.39632.73642.73642.06622.0662
N43.45712.59221.15444.47163.55583.55583.12063.1206
H51.09712.15693.39634.47161.77841.77842.50112.5011
H61.09722.16542.73643.55581.77841.77362.52653.0836
H71.09722.16542.73643.55581.77841.77363.08362.5265
H82.16701.10212.06623.12062.50112.52653.08361.7623
H92.16701.10212.06623.12062.50113.08362.52651.7623

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 112.440 C1 C2 H8 110.836
C1 C2 H9 110.836 C2 C1 H5 110.331
C2 C1 H6 111.000 C2 C1 H7 111.000
C2 C3 N4 178.948 C3 C2 H8 108.152
C3 C2 H9 108.152 H5 C1 H6 108.281
H5 C1 H7 108.281 H6 C1 H7 107.844
H8 C2 H9 106.174
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.582      
2 C -0.207      
3 C 0.791      
4 N -0.971      
5 H 0.170      
6 H 0.196      
7 H 0.196      
8 H 0.204      
9 H 0.204      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.371 3.456 0.000 4.191
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.412 -3.856 0.000
y -3.856 -27.909 0.000
z 0.000 0.000 -24.128
Traceless
 xyz
x -1.394 -3.856 0.000
y -3.856 -2.139 0.000
z 0.000 0.000 3.533
Polar
3z2-r27.066
x2-y20.497
xy-3.856
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.788 1.252 0.000
y 1.252 7.044 0.000
z 0.000 0.000 5.196


<r2> (average value of r2) Å2
<r2> 86.917
(<r2>)1/2 9.323