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All results from a given calculation for C5H8O (Cyclopentanone)

using model chemistry: BLYP/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 BLYP/6-31G**
 hartrees
Energy at 0K-270.456180
Energy at 298.15K-270.465600
HF Energy-270.456180
Nuclear repulsion energy232.702485
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 BLYP/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 3036 3013 7.84      
2 A 3025 3001 24.45      
3 A 2969 2946 24.75      
4 A 2958 2936 5.64      
5 A 1759 1745 188.02      
6 A 1485 1473 0.31      
7 A 1425 1415 0.64      
8 A 1309 1299 1.27      
9 A 1270 1260 0.39      
10 A 1190 1181        
11 A 1137 1129 0.26      
12 A 1001 993 0.64      
13 A 939 932 0.12      
14 A 865 858 0.17      
15 A 777 771 1.26      
16 A 682 677 1.88      
17 A 548 544 4.58      
18 A 224 222 0.09      
19 B 3037 3014 34.76      
20 B 3029 3006 32.59      
21 B 2975 2952 41.82      
22 B 2958 2935 9.12      
23 B 1473 1461 2.60      
24 B 1425 1414 12.65      
25 B 1309 1299 6.14      
26 B 1261 1252 3.08      
27 B 1215 1206 0.76      
28 B 1131 1122 0.85      
29 B 1096 1088 82.41      
30 B 943 935 8.74      
31 B 900 893 0.84      
32 B 816 810 12.74      
33 B 569 565 2.58      
34 B 452 449 2.72      
35 B 434 431 3.19      
36 B 102 102 4.64      

Unscaled Zero Point Vibrational Energy (zpe) 25862.8 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 25663.7 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 BLYP/6-31G**
ABC
0.21634 0.10898 0.07818

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.160
C2 0.000 0.000 0.937
C3 0.000 1.255 0.028
C4 0.000 -1.255 0.028
C5 0.298 0.721 -1.394
C6 -0.298 -0.721 -1.394
H7 -1.012 1.698 0.085
H8 1.012 -1.698 0.085
H9 0.701 2.014 0.406
H10 -0.701 -2.014 0.406
H11 -0.121 1.352 -2.192
H12 0.121 -1.352 -2.192
H13 1.389 0.672 -1.555
H14 -1.389 -0.672 -1.555

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.22292.47312.47313.63823.63822.86522.86522.76062.76064.55864.55864.02224.0222
C21.22291.54891.54892.45772.45772.15212.15212.19732.19733.41063.41062.93072.9307
C32.47311.54892.50911.54812.45231.10633.12141.10043.36392.22613.42612.18502.8546
C42.47311.54892.50912.45231.54813.12141.10633.36391.10043.42612.22612.85462.1850
C53.63822.45771.54812.45231.55982.20412.92362.25273.42291.10052.22791.10402.1936
C63.63822.45772.45231.54811.55982.92362.20413.42292.25272.22791.10052.19361.1040
H72.86522.15211.10633.12142.20412.92363.95291.77163.73812.46993.97123.08312.9067
H82.86522.15213.12141.10632.92362.20413.95293.73811.77163.97122.46992.90673.0831
H92.76062.19731.10043.36392.25273.42291.77163.73814.26462.80494.29112.47333.9281
H102.76062.19733.36391.10043.42292.25273.73811.77164.26464.29112.80493.92812.4733
H114.55863.41062.22613.42611.10052.22792.46993.97122.80494.29112.71411.77452.4718
H124.55863.41063.42612.22612.22791.10053.97122.46994.29112.80492.71412.47181.7745
H134.02222.93072.18502.85461.10402.19363.08312.90672.47333.92811.77452.47183.0863
H144.02222.93072.85462.18502.19361.10402.90673.08313.92812.47332.47181.77453.0863

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 125.907 O1 C2 C4 125.907
C2 C3 C5 105.045 C2 C3 H7 107.113
C2 C3 H9 110.941 C2 C4 C6 105.045
C2 C4 H8 107.113 C2 C4 H10 110.941
C3 C2 C4 108.187 C3 C5 C6 104.193
C3 C5 H11 113.306 C3 C5 H13 109.821
C4 C6 C5 104.193 C4 C6 H12 113.306
C4 C6 H14 109.821 C5 C3 H7 111.181
C5 C3 H9 115.514 C5 C6 H12 112.601
C5 C6 H14 109.687 C6 C4 H8 111.181
C6 C4 H10 115.514 C6 C5 H11 112.601
C6 C5 H13 109.687 H7 C3 H9 106.802
H8 C4 H10 106.802 H11 C5 H13 107.214
H12 C6 H14 107.214
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.421      
2 C 0.389      
3 C -0.216      
4 C -0.216      
5 C -0.171      
6 C -0.171      
7 H 0.117      
8 H 0.117      
9 H 0.110      
10 H 0.110      
11 H 0.085      
12 H 0.085      
13 H 0.092      
14 H 0.092      


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 -2.768 2.768
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.025 -0.217 0.000
y -0.217 -34.843 0.000
z 0.000 0.000 -43.800
Traceless
 xyz
x 4.297 -0.217 0.000
y -0.217 4.569 0.000
z 0.000 0.000 -8.866
Polar
3z2-r2-17.733
x2-y2-0.182
xy-0.217
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.587 0.051 0.000
y 0.051 8.192 0.000
z 0.000 0.000 8.853


<r2> (average value of r2) Å2
<r2> 155.898
(<r2>)1/2 12.486