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

using model chemistry: M06-2X/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at M06-2X/6-311G*
 hartrees
Energy at 0K-172.028233
Energy at 298.15K 
HF Energy-172.028233
Nuclear repulsion energy103.188819
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 M06-2X/6-311G*
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' 3171 3171 15.53 72.43 0.70 0.82
2 A' 3099 3099 8.32 60.53 0.14 0.24
3 A' 3092 3092 12.99 159.64 0.01 0.02
4 A' 2426 2426 8.24 60.29 0.25 0.40
5 A' 1527 1527 7.94 6.66 0.74 0.85
6 A' 1495 1495 6.21 12.48 0.74 0.85
7 A' 1433 1433 3.14 2.18 0.23 0.37
8 A' 1365 1365 2.82 3.20 0.57 0.73
9 A' 1108 1108 5.17 3.46 0.15 0.26
10 A' 1037 1037 1.19 5.56 0.48 0.65
11 A' 857 857 0.31 5.03 0.14 0.25
12 A' 562 562 0.98 2.06 0.36 0.53
13 A' 215 215 4.05 2.95 0.73 0.84
14 A" 3174 3174 15.02 23.33 0.75 0.86
15 A" 3136 3136 0.43 92.59 0.75 0.86
16 A" 1520 1520 10.01 11.79 0.75 0.86
17 A" 1307 1307 0.04 5.58 0.75 0.86
18 A" 1129 1129 0.34 0.04 0.75 0.86
19 A" 796 796 4.20 0.38 0.75 0.86
20 A" 404 404 0.21 3.18 0.75 0.86
21 A" 225 225 0.82 0.58 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16538.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16538.0 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 M06-2X/6-311G*
ABC
0.92592 0.15823 0.14226

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.509 0.551 0.000
C2 0.000 0.817 0.000
C3 -0.771 -0.427 0.000
N4 -1.357 -1.415 0.000
H5 2.053 1.496 0.000
H6 1.802 -0.016 0.883
H7 1.802 -0.016 -0.883
H8 -0.292 1.397 0.878
H9 -0.292 1.397 -0.878

Atom - Atom Distances (Å)
  C1 C2 C3 N4 H5 H6 H7 H8 H9
C11.53212.48133.47531.09021.08991.08992.17502.1750
C21.53211.46412.61222.16242.17332.17331.09211.0921
C32.48131.46411.14823.41702.75192.75192.08042.0804
N43.47532.61221.14824.48333.56603.56603.13233.1323
H51.09022.16243.41704.48331.76891.76892.50642.5064
H61.08992.17332.75193.56601.76891.76592.52703.0801
H71.08992.17332.75193.56601.76891.76593.08012.5270
H82.17501.09212.08043.13232.50642.52703.08011.7562
H92.17501.09212.08043.13232.50643.08012.52701.7562

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 111.796 C1 C2 H8 110.845
C1 C2 H9 110.845 C2 C1 H5 109.955
C2 C1 H6 110.835 C2 C1 H7 110.835
C2 C3 N4 178.865 C3 C2 H8 108.071
C3 C2 H9 108.071 H5 C1 H6 108.465
H5 C1 H7 108.465 H6 C1 H7 108.210
H8 C2 H9 107.033
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.665      
2 C -0.514      
3 C 0.156      
4 N -0.275      
5 H 0.243      
6 H 0.249      
7 H 0.249      
8 H 0.279      
9 H 0.279      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.241 3.277 0.000 3.970
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.309 -3.624 0.000
y -3.624 -27.595 0.000
z 0.000 0.000 -23.994
Traceless
 xyz
x -1.514 -3.624 0.000
y -3.624 -1.944 0.000
z 0.000 0.000 3.458
Polar
3z2-r26.917
x2-y20.286
xy-3.624
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.498 1.145 0.000
y 1.145 5.924 0.000
z 0.000 0.000 4.162


<r2> (average value of r2) Å2
<r2> 87.608
(<r2>)1/2 9.360