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All results from a given calculation for C5H8O (Cyclopentanone)

using model chemistry: HF/SDD

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/SDD
 hartrees
Energy at 0K-268.785229
Energy at 298.15K-268.795204
HF Energy-268.785229
Nuclear repulsion energy235.191793
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/SDD
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 3301 2972 5.89      
2 A 3287 2960 37.20      
3 A 3226 2905 4.18      
4 A 3220 2899 42.79      
5 A 1901 1712 282.20      
6 A 1663 1498 3.38      
7 A 1616 1455 1.47      
8 A 1487 1339 0.01      
9 A 1452 1308 0.13      
10 A 1349 1215 0.31      
11 A 1301 1171 2.46      
12 A 1138 1025 0.46      
13 A 1087 979 0.43      
14 A 963 867 1.38      
15 A 897 808 0.00      
16 A 794 715 0.01      
17 A 624 562 8.77      
18 A 238 215 0.00      
19 B 3305 2975 72.03      
20 B 3291 2963 45.08      
21 B 3222 2901 41.01      
22 B 3220 2899 42.39      
23 B 1653 1489 8.31      
24 B 1616 1455 33.88      
25 B 1493 1344 1.02      
26 B 1451 1307 2.97      
27 B 1388 1250 0.40      
28 B 1305 1175 17.42      
29 B 1298 1169 49.27      
30 B 1057 952 20.62      
31 B 1021 920 3.40      
32 B 931 838 7.82      
33 B 643 579 3.59      
34 B 512 461 3.96      
35 B 490 441 15.11      
36 B 101 91 8.52      

Unscaled Zero Point Vibrational Energy (zpe) 28770.5 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 25905.0 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 HF/SDD
ABC
0.22047 0.11152 0.07981

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.136
C2 0.000 0.000 0.915
C3 0.000 1.244 0.037
C4 0.000 -1.244 0.037
C5 0.292 0.717 -1.382
C6 -0.292 -0.717 -1.382
H7 -0.984 1.698 0.092
H8 0.984 -1.698 0.092
H9 0.710 1.973 0.400
H10 -0.710 -1.973 0.400
H11 -0.138 1.339 -2.155
H12 0.138 -1.339 -2.155
H13 1.363 0.680 -1.554
H14 -1.363 -0.680 -1.554

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.22052.43982.43983.60193.60192.83352.83352.72172.72174.49674.49673.99193.9919
C21.22051.52261.52262.42422.42422.12852.12852.15912.15913.35223.35222.90142.9014
C32.43981.52262.48701.54102.43761.08573.10271.08103.31382.19773.38982.16912.8440
C42.43981.52262.48702.43761.54103.10271.08573.31381.08103.38982.19772.84402.1691
C53.60192.42421.54102.43761.54892.18302.91332.21993.37901.08132.20221.08492.1729
C63.60192.42422.43761.54101.54892.91332.18303.37902.21992.20221.08132.17291.0849
H72.83352.12851.08573.10272.18302.91333.92591.74383.69442.42783.94153.04232.9176
H82.83352.12853.10271.08572.91332.18303.92593.69441.74383.94152.42782.91763.0423
H92.72172.15911.08103.31382.21993.37901.74383.69444.19352.76584.22202.43253.8931
H102.72172.15913.31381.08103.37902.21993.69441.74384.19354.22202.76583.89312.4325
H114.49673.35222.19773.38981.08132.20222.42783.94152.76584.22202.69251.74562.4369
H124.49673.35223.38982.19772.20221.08133.94152.42784.22202.76582.69252.43691.7456
H133.99192.90142.16912.84401.08492.17293.04232.91762.43253.89311.74562.43693.0461
H143.99192.90142.84402.16912.17291.08492.91763.04233.89312.43252.43691.74563.0461

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 125.246 O1 C2 C4 125.246
C2 C3 C5 104.614 C2 C3 H7 108.216
C2 C3 H9 110.903 C2 C4 C6 104.614
C2 C4 H8 108.216 C2 C4 H10 110.903
C3 C2 C4 109.508 C3 C5 C6 104.165
C3 C5 H11 112.704 C3 C5 H13 110.180
C4 C6 C5 104.165 C4 C6 H12 112.704
C4 C6 H14 110.180 C5 C3 H7 111.240
C5 C3 H9 114.560 C5 C6 H12 112.488
C5 C6 H14 109.925 C6 C4 H8 111.240
C6 C4 H10 114.560 C6 C5 H11 112.488
C6 C5 H13 109.925 H7 C3 H9 107.189
H8 C4 H10 107.189 H11 C5 H13 107.384
H12 C6 H14 107.384
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.363      
2 C 0.340      
3 C -0.449      
4 C -0.449      
5 C -0.355      
6 C -0.355      
7 H 0.210      
8 H 0.210      
9 H 0.229      
10 H 0.229      
11 H 0.201      
12 H 0.201      
13 H 0.175      
14 H 0.175      


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 -3.951 3.951
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.581 -0.174 0.000
y -0.174 -35.204 0.000
z 0.000 0.000 -48.048
Traceless
 xyz
x 6.045 -0.174 0.000
y -0.174 6.611 0.000
z 0.000 0.000 -12.655
Polar
3z2-r2-25.311
x2-y2-0.377
xy-0.174
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.974 0.049 0.000
y 0.049 7.147 0.000
z 0.000 0.000 8.249


<r2> (average value of r2) Å2
<r2> 154.163
(<r2>)1/2 12.416