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All results from a given calculation for C5H8O (Cyclopentanone)

using model chemistry: B3LYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYP/STO-3G
 hartrees
Energy at 0K-267.180609
Energy at 298.15K-267.189918
HF Energy-267.180609
Nuclear repulsion energy230.016409
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 B3LYP/STO-3G
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 3458 3086 0.50      
2 A 3444 3073 0.02      
3 A 3351 2990 2.49      
4 A 3334 2975 2.83      
5 A 1867 1666 40.21      
6 A 1681 1500 0.10      
7 A 1640 1464 0.11      
8 A 1478 1319 1.40      
9 A 1429 1275 0.11      
10 A 1330 1187 0.25      
11 A 1281 1143 0.11      
12 A 1139 1017 0.81      
13 A 1068 953 0.13      
14 A 972 868 0.16      
15 A 855 763 0.06      
16 A 770 687 1.17      
17 A 589 526 0.66      
18 A 216 192 0.01      
19 B 3466 3093 3.80      
20 B 3444 3074 0.20      
21 B 3350 2989 3.17      
22 B 3332 2973 0.99      
23 B 1670 1490 0.95      
24 B 1640 1464 6.18      
25 B 1471 1313 2.69      
26 B 1407 1256 0.73      
27 B 1356 1210 0.11      
28 B 1238 1104 0.63      
29 B 1190 1062 64.67      
30 B 1057 943 9.56      
31 B 1005 897 0.85      
32 B 895 799 8.45      
33 B 612 546 2.73      
34 B 462 412 2.85      
35 B 453 404 2.59      
36 B 94 84 1.78      

Unscaled Zero Point Vibrational Energy (zpe) 29020.7 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 25898.1 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 B3LYP/STO-3G
ABC
0.21115 0.10613 0.07598

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.201
C2 0.000 0.000 0.953
C3 0.000 1.276 0.021
C4 0.000 -1.276 0.021
C5 0.288 0.728 -1.407
C6 -0.288 -0.728 -1.407
H7 -0.998 1.749 0.070
H8 0.998 -1.749 0.070
H9 0.742 2.018 0.362
H10 -0.742 -2.018 0.362
H11 -0.169 1.350 -2.195
H12 0.169 -1.350 -2.195
H13 1.376 0.697 -1.584
H14 -1.376 -0.697 -1.584

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.24762.52562.52563.69223.69222.93182.93182.82902.82904.60124.60124.08714.0871
C21.24761.58031.58032.48712.48712.19882.19882.22972.22973.42933.42932.96942.9694
C32.52561.58032.55291.55722.47861.10513.18601.10283.39402.22383.44042.19252.8925
C42.52561.58032.55292.47861.55723.18601.10513.39401.10283.44042.22382.89252.1925
C53.69222.48711.55722.47861.56632.20832.97022.23613.42531.10222.22531.10302.1983
C63.69222.48712.47861.55721.56632.97022.20833.42532.23612.22531.10222.19831.1030
H72.93182.19881.10513.18602.20832.97024.02701.78463.78672.44434.01133.07852.9767
H82.93182.19883.18601.10512.97022.20834.02703.78671.78464.01132.44432.97673.0785
H92.82902.22971.10283.39402.23613.42531.78463.78674.29992.79534.26682.43593.9554
H102.82902.22973.39401.10283.42532.23613.78671.78464.29994.26682.79533.95542.4359
H114.60123.42932.22383.44041.10222.22532.44434.01132.79534.26682.72041.78512.4536
H124.60123.42933.44042.22382.22531.10224.01132.44434.26682.79532.72042.45361.7851
H134.08712.96942.19252.89251.10302.19833.07852.97672.43593.95541.78512.45363.0856
H144.08712.96942.89252.19252.19831.10302.97673.07853.95542.43592.45361.78513.0856

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 126.128 O1 C2 C4 126.128
C2 C3 C5 104.871 C2 C3 H7 108.630
C2 C3 H9 111.157 C2 C4 C6 104.871
C2 C4 H8 108.630 C2 C4 H10 111.157
C3 C2 C4 107.744 C3 C5 C6 105.033
C3 C5 H11 112.356 C3 C5 H13 109.832
C4 C6 C5 105.033 C4 C6 H12 112.356
C4 C6 H14 109.832 C5 C3 H7 110.950
C5 C3 H9 113.308 C5 C6 H12 111.830
C5 C6 H14 109.667 C6 C4 H8 110.950
C6 C4 H10 113.308 C6 C5 H11 111.830
C6 C5 H13 109.667 H7 C3 H9 107.855
H8 C4 H10 107.855 H11 C5 H13 108.093
H12 C6 H14 108.093
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.183      
2 C 0.157      
3 C -0.158      
4 C -0.158      
5 C -0.134      
6 C -0.134      
7 H 0.080      
8 H 0.080      
9 H 0.081      
10 H 0.081      
11 H 0.073      
12 H 0.073      
13 H 0.071      
14 H 0.071      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.747 1.747
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.756 -0.146 0.000
y -0.146 -33.157 0.000
z 0.000 0.000 -38.966
Traceless
 xyz
x 3.306 -0.146 0.000
y -0.146 2.705 0.000
z 0.000 0.000 -6.010
Polar
3z2-r2-12.020
x2-y20.401
xy-0.146
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.385 0.011 0.000
y 0.011 4.325 0.000
z 0.000 0.000 5.036


<r2> (average value of r2) Å2
<r2> 157.457
(<r2>)1/2 12.548