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

using model chemistry: M06-2X/aug-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 M06-2X/aug-cc-pVTZ
 hartrees
Energy at 0K-172.053863
Energy at 298.15K 
HF Energy-172.053863
Nuclear repulsion energy103.383117
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/aug-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' 3162 3022 10.81 62.96 0.68 0.81
2 A' 3090 2953 5.71 60.90 0.11 0.19
3 A' 3083 2946 9.68 224.74 0.00 0.01
4 A' 2418 2311 12.30 86.71 0.15 0.26
5 A' 1510 1443 5.51 2.58 0.73 0.85
6 A' 1478 1413 5.46 7.62 0.70 0.83
7 A' 1419 1356 1.53 0.56 0.38 0.55
8 A' 1353 1293 3.41 2.47 0.42 0.59
9 A' 1101 1052 3.99 5.56 0.10 0.19
10 A' 1033 987 0.62 4.20 0.44 0.61
11 A' 854 816 0.22 6.40 0.07 0.12
12 A' 559 534 0.82 1.36 0.16 0.28
13 A' 212 203 4.76 2.00 0.70 0.83
14 A" 3163 3023 9.76 18.77 0.75 0.86
15 A" 3126 2987 0.02 77.25 0.75 0.86
16 A" 1502 1436 7.70 4.97 0.75 0.86
17 A" 1293 1236 0.00 2.01 0.75 0.86
18 A" 1120 1070 0.38 0.06 0.75 0.86
19 A" 791 756 3.59 0.38 0.75 0.86
20 A" 400 382 0.61 1.31 0.75 0.86
21 A" 219 210 1.12 0.28 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16441.8 cm-1
Scaled (by 0.9557) Zero Point Vibrational Energy (zpe) 15713.4 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/aug-cc-pVTZ
ABC
0.92941 0.15880 0.14279

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.506 0.551 0.000
C2 0.000 0.816 0.000
C3 -0.770 -0.427 0.000
N4 -1.353 -1.413 0.000
H5 2.047 1.495 0.000
H6 1.797 -0.016 0.882
H7 1.797 -0.016 -0.882
H8 -0.293 1.392 0.877
H9 -0.293 1.392 -0.877

Atom - Atom Distances (Å)
  C1 C2 C3 N4 H5 H6 H7 H8 H9
C11.52952.47763.46931.08781.08771.08772.17142.1714
C21.52951.46202.60782.15662.16742.16741.08981.0898
C32.47761.46201.14603.41012.74482.74482.07502.0750
N43.46932.60781.14604.47433.55693.55693.12473.1247
H51.08782.15663.41014.47431.76741.76742.50122.5012
H61.08772.16742.74483.55691.76741.76322.52003.0731
H71.08772.16742.74483.55691.76741.76323.07312.5200
H82.17141.08982.07503.12472.50122.52003.07311.7547
H92.17141.08982.07503.12472.50123.07312.52001.7547

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 111.812 C1 C2 H8 110.884
C1 C2 H9 110.884 C2 C1 H5 109.820
C2 C1 H6 110.680 C2 C1 H7 110.680
C2 C3 N4 178.808 C3 C2 H8 107.922
C3 C2 H9 107.922 H5 C1 H6 108.656
H5 C1 H7 108.656 H6 C1 H7 108.288
H8 C2 H9 107.235
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.845      
2 C -0.227      
3 C 0.360      
4 N -0.578      
5 H 0.211      
6 H 0.277      
7 H 0.277      
8 H 0.262      
9 H 0.262      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.363 3.426 0.000 4.162
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.393 -3.787 0.000
y -3.787 -27.847 0.000
z 0.000 0.000 -24.056
Traceless
 xyz
x -1.441 -3.787 0.000
y -3.787 -2.122 0.000
z 0.000 0.000 3.564
Polar
3z2-r27.127
x2-y20.454
xy-3.787
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.520 1.119 0.000
y 1.119 6.687 0.000
z 0.000 0.000 5.032


<r2> (average value of r2) Å2
<r2> 87.415
(<r2>)1/2 9.350