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

using model chemistry: M06-2X/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-172.055144
Energy at 298.15K 
HF Energy-172.055144
Nuclear repulsion energy103.358283
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/Def2TZVPP
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 3165 11.56 65.87 0.68 0.81
2 A' 3091 3091 6.55 53.80 0.13 0.23
3 A' 3084 3084 9.88 212.54 0.01 0.01
4 A' 2421 2421 11.06 72.02 0.20 0.34
5 A' 1510 1510 5.60 3.74 0.74 0.85
6 A' 1479 1479 5.28 9.37 0.72 0.84
7 A' 1420 1420 1.44 0.83 0.27 0.43
8 A' 1354 1354 3.30 2.18 0.50 0.67
9 A' 1102 1102 3.80 4.35 0.11 0.20
10 A' 1035 1035 0.68 4.77 0.44 0.61
11 A' 855 855 0.24 5.82 0.09 0.17
12 A' 560 560 0.75 1.69 0.24 0.39
13 A' 213 213 4.44 2.47 0.73 0.85
14 A" 3166 3166 10.54 20.43 0.75 0.86
15 A" 3128 3128 0.06 81.62 0.75 0.86
16 A" 1502 1502 7.54 7.28 0.75 0.86
17 A" 1294 1294 0.00 3.19 0.75 0.86
18 A" 1120 1120 0.36 0.06 0.75 0.86
19 A" 792 792 3.37 0.29 0.75 0.86
20 A" 401 401 0.46 2.05 0.75 0.86
21 A" 222 222 1.05 0.49 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16457.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16457.1 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/Def2TZVPP
ABC
0.93063 0.15861 0.14266

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.507 0.553 0.000
C2 0.000 0.816 0.000
C3 -0.770 -0.428 0.000
N4 -1.354 -1.414 0.000
H5 2.046 1.498 0.000
H6 1.798 -0.014 0.882
H7 1.798 -0.014 -0.882
H8 -0.294 1.392 0.877
H9 -0.294 1.392 -0.877

Atom - Atom Distances (Å)
  C1 C2 C3 N4 H5 H6 H7 H8 H9
C11.52942.47893.47161.08811.08801.08802.17162.1716
C21.52941.46252.60842.15682.16782.16781.09011.0901
C32.47891.46251.14593.41152.74682.74682.07562.0756
N43.47162.60841.14594.47653.56023.56023.12503.1250
H51.08812.15683.41154.47651.76751.76752.50122.5012
H61.08802.16782.74683.56021.76751.76362.52053.0737
H71.08802.16782.74683.56021.76751.76363.07372.5205
H82.17161.09012.07563.12502.50122.52053.07371.7548
H92.17161.09012.07563.12502.50123.07372.52051.7548

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 111.877 C1 C2 H8 110.877
C1 C2 H9 110.877 C2 C1 H5 109.824
C2 C1 H6 110.700 C2 C1 H7 110.700
C2 C3 N4 178.880 C3 C2 H8 107.915
C3 C2 H9 107.915 H5 C1 H6 108.633
H5 C1 H7 108.633 H6 C1 H7 108.289
H8 C2 H9 107.192
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.326      
2 C -0.153      
3 C -0.207      
4 N 0.026      
5 H 0.121      
6 H 0.129      
7 H 0.129      
8 H 0.140      
9 H 0.140      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.333 3.380 0.000 4.107
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.331 -3.730 0.000
y -3.730 -27.749 0.000
z 0.000 0.000 -24.049
Traceless
 xyz
x -1.432 -3.730 0.000
y -3.730 -2.059 0.000
z 0.000 0.000 3.491
Polar
3z2-r26.982
x2-y20.417
xy-3.730
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.148 1.167 0.000
y 1.167 6.444 0.000
z 0.000 0.000 4.717


<r2> (average value of r2) Å2
<r2> 87.443
(<r2>)1/2 9.351