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All results from a given calculation for C5H8O (Cyclopentanone)

using model chemistry: B3LYP/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-270.595630
Energy at 298.15K-270.605228
HF Energy-270.595630
Nuclear repulsion energy234.612142
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/6-31+G**
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 3114 3003 6.04      
2 A 3101 2990 25.11      
3 A 3042 2933 26.19      
4 A 3036 2927 3.68      
5 A 1815 1750 267.10      
6 A 1516 1462 1.64      
7 A 1455 1403 0.03      
8 A 1344 1296 0.29      
9 A 1308 1262 1.16      
10 A 1220 1176 0.02      
11 A 1176 1134 0.59      
12 A 1035 998 0.76      
13 A 965 931 0.15      
14 A 895 863 0.36      
15 A 812 783 1.56      
16 A 711 686 1.44      
17 A 568 547 5.74      
18 A 229 221 0.14      
19 B 3115 3003 25.77      
20 B 3106 2994 33.34      
21 B 3048 2939 45.01      
22 B 3035 2927 7.40      
23 B 1502 1448 5.06      
24 B 1455 1403 21.59      
25 B 1344 1296 2.22      
26 B 1299 1252 7.63      
27 B 1256 1211 1.78      
28 B 1169 1127 6.46      
29 B 1155 1113 66.34      
30 B 970 936 10.49      
31 B 926 893 0.91      
32 B 844 814 9.96      
33 B 588 567 2.55      
34 B 471 454 4.94      
35 B 451 435 3.73      
36 B 105 101 5.95      

Unscaled Zero Point Vibrational Energy (zpe) 26589.9 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 25638.0 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/6-31+G**
ABC
0.21983 0.11094 0.07958

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.139
C2 0.000 0.000 0.924
C3 0.000 1.244 0.031
C4 0.000 -1.244 0.031
C5 0.296 0.715 -1.383
C6 -0.296 -0.715 -1.383
H7 -1.006 1.683 0.089
H8 1.006 -1.683 0.089
H9 0.699 1.995 0.410
H10 -0.699 -1.995 0.410
H11 -0.121 1.344 -2.174
H12 0.121 -1.344 -2.174
H13 1.381 0.667 -1.544
H14 -1.381 -0.667 -1.544

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.21442.44732.44733.60593.60592.83652.83652.73112.73114.51944.51943.98893.9889
C21.21441.53141.53142.43382.43382.13142.13142.17562.17563.37993.37992.90562.9056
C32.44731.53142.48771.53852.43421.09943.09581.09363.33482.21113.40262.17252.8349
C42.44731.53142.48772.43421.53853.09581.09943.33481.09363.40262.21112.83492.1725
C53.60592.43381.53852.43421.54822.19122.90252.23893.39821.09382.21321.09742.1790
C63.60592.43382.43421.53851.54822.90252.19123.39822.23892.21321.09382.17901.0974
H72.83652.13141.09943.09582.19122.90253.92211.76293.70472.45403.94483.06552.8862
H82.83652.13143.09581.09942.90252.19123.92213.70471.76293.94482.45402.88623.0655
H92.73112.17561.09363.33482.23893.39821.76293.70474.22762.78794.26142.45823.9019
H102.73112.17563.33481.09363.39822.23893.70471.76294.22764.26142.78793.90192.4582
H114.51943.37992.21113.40261.09382.21322.45403.94482.78794.26142.69951.76432.4552
H124.51943.37993.40262.21112.21321.09383.94482.45404.26142.78792.69952.45521.7643
H133.98892.90562.17252.83491.09742.17903.06552.88622.45823.90191.76432.45523.0666
H143.98892.90562.83492.17252.17901.09742.88623.06553.90192.45822.45521.76433.0666

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 125.682 O1 C2 C4 125.682
C2 C3 C5 104.893 C2 C3 H7 107.087
C2 C3 H9 110.851 C2 C4 C6 104.893
C2 C4 H8 107.087 C2 C4 H10 110.851
C3 C2 C4 108.635 C3 C5 C6 104.108
C3 C5 H11 113.194 C3 C5 H13 109.881
C4 C6 C5 104.108 C4 C6 H12 113.194
C4 C6 H14 109.881 C5 C3 H7 111.239
C5 C3 H9 115.512 C5 C6 H12 112.660
C5 C6 H14 109.722 C6 C4 H8 111.239
C6 C4 H10 115.512 C6 C5 H11 112.660
C6 C5 H13 109.722 H7 C3 H9 107.002
H8 C4 H10 107.002 H11 C5 H13 107.260
H12 C6 H14 107.260
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.443      
2 C 0.128      
3 C -0.180      
4 C -0.180      
5 C -0.307      
6 C -0.307      
7 H 0.176      
8 H 0.176      
9 H 0.172      
10 H 0.172      
11 H 0.145      
12 H 0.145      
13 H 0.152      
14 H 0.152      


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 -3.331 3.331
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.586 -0.199 0.000
y -0.199 -35.443 0.000
z 0.000 0.000 -45.932
Traceless
 xyz
x 5.101 -0.199 0.000
y -0.199 5.316 0.000
z 0.000 0.000 -10.417
Polar
3z2-r2-20.834
x2-y2-0.144
xy-0.199
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.133 0.071 0.000
y 0.071 8.991 0.000
z 0.000 0.000 9.762


<r2> (average value of r2) Å2
<r2> 154.340
(<r2>)1/2 12.423