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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/cc-pVDZ
 hartrees
Energy at 0K-172.075704
Energy at 298.15K 
HF Energy-172.075704
Nuclear repulsion energy102.395027
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 B3LYPultrafine/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' 3128 3034 16.86 82.40 0.71 0.83
2 A' 3047 2956 18.29 120.63 0.01 0.02
3 A' 3044 2953 7.28 130.75 0.07 0.13
4 A' 2361 2290 7.73 62.17 0.26 0.41
5 A' 1478 1433 4.87 8.22 0.74 0.85
6 A' 1445 1401 4.14 16.15 0.71 0.83
7 A' 1399 1357 0.36 1.64 0.59 0.74
8 A' 1338 1298 4.70 3.93 0.54 0.70
9 A' 1086 1053 3.28 3.55 0.14 0.24
10 A' 1025 994 0.45 5.14 0.49 0.65
11 A' 845 820 0.19 4.98 0.14 0.25
12 A' 545 529 0.89 1.56 0.32 0.49
13 A' 213 206 3.37 2.57 0.73 0.85
14 A" 3132 3038 15.99 34.65 0.75 0.86
15 A" 3081 2988 1.87 102.51 0.75 0.86
16 A" 1467 1423 6.48 15.03 0.75 0.86
17 A" 1276 1238 0.00 5.30 0.75 0.86
18 A" 1100 1067 0.58 0.16 0.75 0.86
19 A" 787 763 3.72 0.39 0.75 0.86
20 A" 395 383 0.11 2.59 0.75 0.86
21 A" 225 218 0.78 0.48 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16206.7 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 15720.5 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 B3LYPultrafine/cc-pVDZ
ABC
0.93049 0.15485 0.13975

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.519 0.573 0.000
C2 0.000 0.812 0.000
C3 -0.772 -0.437 0.000
N4 -1.369 -1.433 0.000
H5 2.048 1.537 0.000
H6 1.829 0.006 0.891
H7 1.829 0.006 -0.891
H8 -0.302 1.398 0.884
H9 -0.302 1.398 -0.884

Atom - Atom Distances (Å)
  C1 C2 C3 N4 H5 H6 H7 H8 H9
C11.53732.50303.51601.10051.10051.10052.18552.1855
C21.53731.46752.62922.17312.18822.18821.10301.1030
C32.50301.46751.16183.44242.78502.78502.08982.0898
N43.51602.62921.16184.52793.61883.61883.15193.1519
H51.10052.17313.44244.52791.78491.78492.51482.5148
H61.10052.18822.78503.61881.78491.78182.54503.1030
H71.10052.18822.78503.61881.78491.78183.10302.5450
H82.18551.10302.08983.15192.51482.54503.10301.7688
H92.18551.10302.08983.15192.51483.10302.54501.7688

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 112.800 C1 C2 H8 110.656
C1 C2 H9 110.656 C2 C1 H5 109.831
C2 C1 H6 111.031 C2 C1 H7 111.031
C2 C3 N4 179.197 C3 C2 H8 107.941
C3 C2 H9 107.941 H5 C1 H6 108.375
H5 C1 H7 108.375 H6 C1 H7 108.109
H8 C2 H9 106.597
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.020      
2 C -0.007      
3 C -0.115      
4 N -0.105      
5 H 0.030      
6 H 0.045      
7 H 0.045      
8 H 0.064      
9 H 0.064      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.160 3.139 0.000 3.810
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.872 -3.521 0.000
y -3.521 -27.240 0.000
z 0.000 0.000 -23.768
Traceless
 xyz
x -1.368 -3.521 0.000
y -3.521 -1.920 0.000
z 0.000 0.000 3.288
Polar
3z2-r26.576
x2-y20.368
xy-3.521
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.554 1.174 0.000
y 1.174 5.951 0.000
z 0.000 0.000 4.187


<r2> (average value of r2) Å2
<r2> 88.679
(<r2>)1/2 9.417