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All results from a given calculation for C5H8O (Cyclopentanone)

using model chemistry: HF/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-268.931635
Energy at 298.15K-268.941593
HF Energy-268.931635
Nuclear repulsion energy236.865830
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 HF/6-311G**
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 3247 2950 6.06      
2 A 3229 2933 37.60      
3 A 3173 2882 16.86      
4 A 3167 2877 12.96      
5 A 2019 1835 332.75      
6 A 1633 1484 0.96      
7 A 1576 1432 0.32      
8 A 1467 1333 0.20      
9 A 1431 1300 0.03      
10 A 1326 1204 0.07      
11 A 1284 1167 2.13      
12 A 1097 997 0.35      
13 A 1044 948 0.04      
14 A 952 865 0.29      
15 A 878 798 0.61      
16 A 765 695 0.17      
17 A 606 551 5.96      
18 A 253 230 0.07      
19 B 3248 2951 46.68      
20 B 3232 2937 53.15      
21 B 3174 2884 49.19      
22 B 3169 2879 20.11      
23 B 1616 1468 4.37      
24 B 1577 1433 19.48      
25 B 1462 1329 1.92      
26 B 1426 1295 12.22      
27 B 1365 1240 0.92      
28 B 1276 1159 20.79      
29 B 1266 1150 46.57      
30 B 1030 936 10.66      
31 B 996 905 1.47      
32 B 912 828 6.88      
33 B 626 569 3.28      
34 B 511 464 8.53      
35 B 489 444 7.39      
36 B 102 92 5.92      

Unscaled Zero Point Vibrational Energy (zpe) 28311.2 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 25720.8 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 HF/6-311G**
ABC
0.22261 0.11343 0.08123

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.106
C2 0.000 0.000 0.923
C3 0.000 1.237 0.035
C4 0.000 -1.237 0.035
C5 0.303 0.707 -1.370
C6 -0.303 -0.707 -1.370
H7 -0.998 1.668 0.084
H8 0.998 -1.668 0.084
H9 0.695 1.980 0.408
H10 -0.695 -1.980 0.408
H11 -0.096 1.336 -2.157
H12 0.096 -1.336 -2.157
H13 1.379 0.644 -1.518
H14 -1.379 -0.644 -1.518

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.18332.41282.41283.56113.56112.80522.80522.69902.69904.46934.46933.93143.9314
C21.18331.52311.52312.41932.41932.11752.11752.16012.16013.35913.35912.87702.8770
C32.41281.52312.47461.53242.41841.08843.07281.08293.31202.19683.38182.16002.8025
C42.41281.52312.47462.41841.53243.07281.08843.31201.08293.38182.19682.80252.1600
C53.56112.41931.53242.41841.53922.17572.87122.22173.37331.08352.19911.08752.1628
C63.56112.41932.41841.53241.53922.87122.17573.37332.22172.19911.08352.16281.0875
H72.80522.11751.08843.07282.17572.87123.88841.75133.67492.43923.90493.04422.8393
H82.80522.11753.07281.08842.87122.17573.88843.67491.75133.90492.43922.83933.0442
H92.69902.16011.08293.31202.22173.37331.75133.67494.19562.76114.23462.44213.8594
H102.69902.16013.31201.08293.37332.22173.67491.75134.19564.23462.76113.85942.4421
H114.46933.35912.19683.38181.08352.19912.43923.90492.76114.23462.67831.75002.4439
H124.46933.35913.38182.19682.19911.08353.90492.43924.23462.76112.67832.44391.7500
H133.93142.87702.16002.80251.08752.16283.04422.83932.44213.85941.75002.44393.0437
H143.93142.87702.80252.16002.16281.08752.83933.04423.85942.44212.44391.75003.0437

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 125.672 O1 C2 C4 125.672
C2 C3 C5 104.708 C2 C3 H7 107.182
C2 C3 H9 110.839 C2 C4 C6 104.708
C2 C4 H8 107.182 C2 C4 H10 110.839
C3 C2 C4 108.657 C3 C5 C6 103.880
C3 C5 H11 113.122 C3 C5 H13 109.911
C4 C6 C5 103.880 C4 C6 H12 113.122
C4 C6 H14 109.911 C5 C3 H7 111.102
C5 C3 H9 115.236 C5 C6 H12 112.811
C5 C6 H14 109.654 C6 C4 H8 111.102
C6 C4 H10 115.236 C6 C5 H11 112.811
C6 C5 H13 109.654 H7 C3 H9 107.521
H8 C4 H10 107.521 H11 C5 H13 107.433
H12 C6 H14 107.433
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.405      
2 C 0.303      
3 C -0.222      
4 C -0.222      
5 C -0.208      
6 C -0.208      
7 H 0.130      
8 H 0.130      
9 H 0.135      
10 H 0.135      
11 H 0.110      
12 H 0.110      
13 H 0.106      
14 H 0.106      


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 -3.293 3.293
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.310 -0.177 0.000
y -0.177 -35.295 0.000
z 0.000 0.000 -45.594
Traceless
 xyz
x 5.134 -0.177 0.000
y -0.177 5.157 0.000
z 0.000 0.000 -10.292
Polar
3z2-r2-20.583
x2-y2-0.015
xy-0.177
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.487 0.063 0.000
y 0.063 7.790 0.000
z 0.000 0.000 8.447


<r2> (average value of r2) Å2
<r2> 151.681
(<r2>)1/2 12.316