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All results from a given calculation for C5H8O (Cyclopentanone)

using model chemistry: LSDA/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at LSDA/6-31G*
 hartrees
Energy at 0K-269.104090
Energy at 298.15K-269.113598
HF Energy-269.104090
Nuclear repulsion energy236.391869
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 LSDA/6-31G*
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 3070 3012 4.76      
2 A 3059 3002 14.62      
3 A 2989 2933 17.52      
4 A 2975 2919 3.69      
5 A 1842 1807 201.97      
6 A 1465 1437 3.26      
7 A 1400 1374 0.01      
8 A 1308 1283 0.12      
9 A 1270 1246 4.96      
10 A 1185 1163 0.27      
11 A 1157 1136 0.00      
12 A 1034 1015 0.81      
13 A 931 913 1.14      
14 A 916 899 0.25      
15 A 815 799 0.86      
16 A 703 690 0.92      
17 A 546 536 6.56      
18 A 244 239 0.13      
19 B 3070 3012 7.69      
20 B 3063 3006 18.34      
21 B 2997 2941 31.03      
22 B 2975 2920 1.14      
23 B 1451 1424 9.67      
24 B 1401 1374 29.03      
25 B 1308 1283 3.38      
26 B 1259 1236 15.22      
27 B 1222 1199 12.03      
28 B 1154 1132 74.12      
29 B 1127 1106 1.88      
30 B 973 955 10.92      
31 B 899 882 1.52      
32 B 837 821 13.44      
33 B 572 562 2.82      
34 B 460 452 4.48      
35 B 437 429 2.59      
36 B 112 110 5.24      

Unscaled Zero Point Vibrational Energy (zpe) 26111.3 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 25623.0 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 LSDA/6-31G*
ABC
0.22464 0.11253 0.08130

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.127
C2 0.000 0.000 0.915
C3 0.000 1.226 0.022
C4 0.000 -1.226 0.022
C5 0.314 0.696 -1.365
C6 -0.314 -0.696 -1.365
H7 -1.026 1.647 0.062
H8 1.026 -1.647 0.062
H9 0.674 2.005 0.415
H10 -0.674 -2.005 0.415
H11 -0.057 1.338 -2.180
H12 0.057 -1.338 -2.180
H13 1.410 0.608 -1.493
H14 -1.410 -0.608 -1.493

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.21182.43532.43533.57403.57402.83322.83322.72072.72074.51054.51053.93153.9315
C21.21181.51641.51642.40422.40422.11922.11922.17332.17333.37263.37262.85542.8554
C32.43531.51642.45211.51782.39121.10943.05061.10233.32392.20643.38112.16002.7652
C42.43531.51642.45212.39121.51783.05061.10943.32391.10233.38112.20642.76522.1600
C53.57402.40421.51782.39121.52732.17582.83392.23883.38251.10242.20671.10692.1651
C63.57402.40422.39121.51781.52732.83392.17583.38252.23882.20671.10242.16511.1069
H72.83322.11921.10943.05062.17582.83393.88011.77263.68562.46193.88733.07062.7653
H82.83322.11923.05061.10942.83392.17583.88013.68561.77263.88732.46192.76533.0706
H92.72072.17331.10233.32392.23883.38251.77263.68564.23042.77814.27742.47713.8482
H102.72072.17333.32391.10233.38252.23883.68561.77264.23044.27742.77813.84822.4771
H114.51053.37262.20643.38111.10242.20672.46193.88732.77814.27742.67901.77742.4675
H124.51053.37263.38112.20642.20671.10243.88732.46194.27742.77812.67902.46751.7774
H133.93152.85542.16002.76521.10692.16513.07062.76532.47713.84821.77742.46753.0704
H143.93152.85542.76522.16002.16511.10692.76533.07063.84822.47712.46751.77743.0704

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 126.049 O1 C2 C4 126.049
C2 C3 C5 104.808 C2 C3 H7 106.591
C2 C3 H9 111.195 C2 C4 C6 104.808
C2 C4 H8 106.591 C2 C4 H10 111.195
C3 C2 C4 107.902 C3 C5 C6 103.489
C3 C5 H11 113.774 C3 C5 H13 109.772
C4 C6 C5 103.489 C4 C6 H12 113.774
C4 C6 H14 109.772 C5 C3 H7 110.860
C5 C3 H9 116.502 C5 C6 H12 113.112
C5 C6 H14 109.522 C6 C4 H8 110.860
C6 C4 H10 116.502 C6 C5 H11 113.112
C6 C5 H13 109.522 H7 C3 H9 106.530
H8 C4 H10 106.530 H11 C5 H13 107.127
H12 C6 H14 107.127
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.393      
2 C 0.390      
3 C -0.411      
4 C -0.411      
5 C -0.343      
6 C -0.343      
7 H 0.204      
8 H 0.204      
9 H 0.202      
10 H 0.202      
11 H 0.175      
12 H 0.175      
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 -2.872 2.872
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.663 -0.289 0.000
y -0.289 -34.353 0.000
z 0.000 0.000 -43.556
Traceless
 xyz
x 4.291 -0.289 0.000
y -0.289 4.757 0.000
z 0.000 0.000 -9.048
Polar
3z2-r2-18.096
x2-y2-0.310
xy-0.289
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.567 0.026 0.000
y 0.026 8.039 0.000
z 0.000 0.000 8.648


<r2> (average value of r2) Å2
<r2> 151.130
(<r2>)1/2 12.293