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

using model chemistry: M06-2X/daug-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 M06-2X/daug-cc-pVDZ
 hartrees
Energy at 0K-172.010725
Energy at 298.15K 
HF Energy-172.010725
Nuclear repulsion energy102.869397
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/daug-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' 3169 3169 13.37 70.10 0.69 0.82
2 A' 3095 3095 5.50 99.92 0.07 0.13
3 A' 3082 3082 12.93 209.94 0.00 0.01
4 A' 2414 2414 11.24 85.08 0.15 0.25
5 A' 1480 1480 5.98 2.58 0.73 0.84
6 A' 1448 1448 5.85 7.59 0.70 0.83
7 A' 1393 1393 2.28 0.80 0.36 0.53
8 A' 1330 1330 3.74 2.18 0.39 0.56
9 A' 1093 1093 3.66 7.02 0.12 0.22
10 A' 1034 1034 1.33 3.05 0.56 0.72
11 A' 854 854 0.23 6.33 0.06 0.12
12 A' 550 550 0.85 1.33 0.16 0.27
13 A' 209 209 4.35 2.00 0.70 0.82
14 A" 3172 3172 12.25 20.06 0.75 0.86
15 A" 3138 3138 0.06 87.42 0.75 0.86
16 A" 1474 1474 8.21 5.05 0.75 0.86
17 A" 1272 1272 0.01 1.91 0.75 0.86
18 A" 1102 1102 0.43 0.08 0.75 0.86
19 A" 774 774 3.65 0.36 0.75 0.86
20 A" 390 390 0.38 1.26 0.75 0.86
21 A" 219 219 1.03 0.30 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16345.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16345.5 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 M06-2X/daug-cc-pVDZ
ABC
0.92273 0.15727 0.14150

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.510 0.559 0.000
C2 0.000 0.820 0.000
C3 -0.771 -0.429 0.000
N4 -1.356 -1.426 0.000
H5 2.047 1.512 0.000
H6 1.803 -0.010 0.888
H7 1.803 -0.010 -0.888
H8 -0.297 1.396 0.883
H9 -0.297 1.396 -0.883

Atom - Atom Distances (Å)
  C1 C2 C3 N4 H5 H6 H7 H8 H9
C11.53202.48553.48601.09461.09441.09442.17822.1782
C21.53201.46802.62362.16142.17412.17411.09591.0959
C32.48551.46801.15583.42252.75462.75462.08302.0830
N43.48602.62361.15584.49653.57373.57373.14153.1415
H51.09462.16143.42254.49651.77921.77922.50782.5078
H61.09442.17412.75463.57371.77921.77542.52703.0859
H71.09442.17412.75463.57371.77921.77543.08592.5270
H82.17821.09592.08303.14152.50782.52703.08591.7669
H92.17821.09592.08303.14152.50783.08592.52701.7669

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 111.874 C1 C2 H8 110.880
C1 C2 H9 110.880 C2 C1 H5 109.623
C2 C1 H6 110.638 C2 C1 H7 110.638
C2 C3 N4 178.735 C3 C2 H8 107.790
C3 C2 H9 107.790 H5 C1 H6 108.735
H5 C1 H7 108.735 H6 C1 H7 108.421
H8 C2 H9 107.445
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.401      
2 C -0.421      
3 C 1.202      
4 N -0.682      
5 H -0.428      
6 H -0.239      
7 H -0.239      
8 H -0.297      
9 H -0.297      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.334 3.404 0.000 4.128
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.397 -3.723 0.000
y -3.723 -27.849 0.000
z 0.000 0.000 -24.117
Traceless
 xyz
x -1.414 -3.723 0.000
y -3.723 -2.092 0.000
z 0.000 0.000 3.506
Polar
3z2-r27.012
x2-y20.452
xy-3.723
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.597 1.130 0.000
y 1.130 6.793 0.000
z 0.000 0.000 5.119


<r2> (average value of r2) Å2
<r2> 88.077
(<r2>)1/2 9.385