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

using model chemistry: wB97X-D/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 wB97X-D/daug-cc-pVDZ
 hartrees
Energy at 0K-172.026337
Energy at 298.15K 
HF Energy-172.026337
Nuclear repulsion energy102.729652
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 wB97X-D/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' 3158 3158 17.51 67.02 0.68 0.81
2 A' 3078 3078 7.13 112.48 0.06 0.11
3 A' 3066 3066 16.75 179.14 0.00 0.01
4 A' 2378 2378 11.39 86.78 0.15 0.26
5 A' 1485 1485 5.97 2.70 0.73 0.85
6 A' 1453 1453 5.95 7.36 0.70 0.82
7 A' 1405 1405 1.98 0.80 0.36 0.53
8 A' 1338 1338 3.90 2.35 0.41 0.58
9 A' 1094 1094 3.62 6.04 0.12 0.21
10 A' 1034 1034 0.87 3.36 0.48 0.65
11 A' 850 850 0.21 6.25 0.06 0.12
12 A' 549 549 0.78 1.40 0.15 0.26
13 A' 210 210 4.55 1.99 0.70 0.82
14 A" 3159 3159 16.53 19.76 0.75 0.86
15 A" 3124 3124 0.29 81.27 0.75 0.86
16 A" 1479 1479 8.20 4.89 0.75 0.86
17 A" 1279 1279 0.00 1.96 0.75 0.86
18 A" 1105 1105 0.47 0.07 0.75 0.86
19 A" 785 785 3.42 0.36 0.75 0.86
20 A" 385 385 0.40 1.27 0.75 0.86
21 A" 220 220 1.12 0.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16316.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16316.2 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 wB97X-D/daug-cc-pVDZ
ABC
0.93123 0.15615 0.14079

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.513 0.568 0.000
C2 0.000 0.814 0.000
C3 -0.770 -0.434 0.000
N4 -1.362 -1.429 0.000
H5 2.041 1.529 0.000
H6 1.817 0.003 0.889
H7 1.817 0.003 -0.889
H8 -0.300 1.392 0.883
H9 -0.300 1.392 -0.883

Atom - Atom Distances (Å)
  C1 C2 C3 N4 H5 H6 H7 H8 H9
C11.53282.49303.50041.09631.09601.09602.17882.1788
C21.53281.46652.62412.16272.17902.17901.09781.0978
C32.49301.46651.15773.42842.76962.76962.08282.0828
N43.50042.62411.15774.50873.59783.59783.14163.1416
H51.09632.16273.42844.50871.77981.77982.50602.5060
H61.09602.17902.76963.59781.77981.77742.53213.0906
H71.09602.17902.76963.59781.77981.77743.09062.5321
H82.17881.09782.08283.14162.50602.53213.09061.7668
H92.17881.09782.08283.14162.50603.09062.53211.7668

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 112.425 C1 C2 H8 110.753
C1 C2 H9 110.753 C2 C1 H5 109.570
C2 C1 H6 110.875 C2 C1 H7 110.875
C2 C3 N4 179.101 C3 C2 H8 107.767
C3 C2 H9 107.767 H5 C1 H6 108.551
H5 C1 H7 108.551 H6 C1 H7 108.351
H8 C2 H9 107.163
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.045      
2 C -0.419      
3 C 0.816      
4 N -0.480      
5 H -0.309      
6 H -0.137      
7 H -0.137      
8 H -0.190      
9 H -0.190      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.383 3.470 0.000 4.209
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.382 -3.874 0.000
y -3.874 -27.880 0.000
z 0.000 0.000 -23.985
Traceless
 xyz
x -1.449 -3.874 0.000
y -3.874 -2.197 0.000
z 0.000 0.000 3.646
Polar
3z2-r27.292
x2-y20.498
xy-3.874
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.662 1.148 0.000
y 1.148 6.877 0.000
z 0.000 0.000 5.197


<r2> (average value of r2) Å2
<r2> 88.411
(<r2>)1/2 9.403