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All results from a given calculation for C5H8O (Cyclopentanone)

using model chemistry: B2PLYP/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 B2PLYP/6-31G**
 hartrees
Energy at 0K-270.291890
Energy at 298.15K-270.301538
HF Energy-270.005132
Nuclear repulsion energy235.126934
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 B2PLYP/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 3162 3162 5.98      
2 A 3149 3149 19.09      
3 A 3088 3088 23.05      
4 A 3083 3083 4.48      
5 A 1827 1827 182.41      
6 A 1545 1545 0.64      
7 A 1487 1487 0.03      
8 A 1371 1371 0.65      
9 A 1332 1332 0.75      
10 A 1244 1244 0.01      
11 A 1195 1195 0.30      
12 A 1052 1052 0.65      
13 A 979 979 0.14      
14 A 913 913 0.24      
15 A 826 826 0.79      
16 A 721 721 1.29      
17 A 570 570 4.47      
18 A 239 239 0.07      
19 B 3163 3163 28.75      
20 B 3154 3154 26.71      
21 B 3093 3093 36.43      
22 B 3082 3082 7.52      
23 B 1531 1531 3.86      
24 B 1487 1487 15.61      
25 B 1368 1368 4.06      
26 B 1322 1322 6.90      
27 B 1273 1273 2.25      
28 B 1183 1183 18.05      
29 B 1176 1176 56.06      
30 B 986 986 9.26      
31 B 939 939 0.71      
32 B 860 860 9.45      
33 B 589 589 2.43      
34 B 471 471 4.52      
35 B 452 452 4.20      
36 B 102 102 4.84      

Unscaled Zero Point Vibrational Energy (zpe) 27006.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 27006.8 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 B2PLYP/6-31G**
ABC
0.22087 0.11134 0.08000

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.138
C2 0.000 0.000 0.922
C3 0.000 1.242 0.027
C4 0.000 -1.242 0.027
C5 0.306 0.708 -1.377
C6 -0.306 -0.708 -1.377
H7 -1.005 1.676 0.074
H8 1.005 -1.676 0.074
H9 0.694 1.993 0.406
H10 -0.694 -1.993 0.406
H11 -0.091 1.339 -2.174
H12 0.091 -1.339 -2.174
H13 1.388 0.641 -1.522
H14 -1.388 -0.641 -1.522

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.21502.44862.44863.59863.59862.84252.84252.73002.73004.51564.51563.96603.9660
C21.21501.53101.53102.42582.42582.13092.13092.17282.17283.37493.37492.88322.8832
C32.44861.53102.48401.53342.42291.09593.08681.09053.33032.20543.39342.16522.8057
C42.44861.53102.48402.42291.53343.08681.09593.33031.09053.39342.20542.80572.1652
C53.59862.42581.53342.42291.54292.18172.87762.23193.38781.09072.20721.09422.1703
C63.59862.42582.42291.53341.54292.87762.18173.38782.23192.20721.09072.17031.0942
H72.84252.13091.09593.08682.18172.87763.90891.76013.69742.44973.91723.05692.8392
H82.84252.13093.08681.09592.87762.18173.90893.69741.76013.91722.44972.83923.0569
H92.73002.17281.09053.33032.23193.38781.76013.69744.22102.77494.25702.45483.8716
H102.73002.17283.33031.09053.38782.23193.69741.76014.22104.25702.77493.87162.4548
H114.51563.37492.20543.39341.09072.20722.44973.91722.77494.25702.68401.76082.4551
H124.51563.37493.39342.20542.20721.09073.91722.44974.25702.77492.68402.45511.7608
H133.96602.88322.16522.80571.09422.17033.05692.83922.45483.87161.76082.45513.0578
H143.96602.88322.80572.16522.17031.09422.83923.05693.87162.45482.45511.76083.0578

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 125.784 O1 C2 C4 125.784
C2 C3 C5 104.675 C2 C3 H7 107.261
C2 C3 H9 110.843 C2 C4 C6 104.675
C2 C4 H8 107.261 C2 C4 H10 110.843
C3 C2 C4 108.433 C3 C5 C6 103.921
C3 C5 H11 113.292 C3 C5 H13 109.851
C4 C6 C5 103.921 C4 C6 H12 113.292
C4 C6 H14 109.851 C5 C3 H7 111.059
C5 C3 H9 115.521 C5 C6 H12 112.753
C5 C6 H14 109.592 C6 C4 H8 111.059
C6 C4 H10 115.521 C6 C5 H11 112.753
C6 C5 H13 109.592 H7 C3 H9 107.229
H8 C4 H10 107.229 H11 C5 H13 107.398
H12 C6 H14 107.398
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.437      
2 C 0.414      
3 C -0.269      
4 C -0.269      
5 C -0.217      
6 C -0.217      
7 H 0.138      
8 H 0.138      
9 H 0.136      
10 H 0.136      
11 H 0.111      
12 H 0.111      
13 H 0.112      
14 H 0.112      


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 -2.881 2.881
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.036 -0.205 0.000
y -0.205 -34.995 0.000
z 0.000 0.000 -44.140
Traceless
 xyz
x 4.531 -0.205 0.000
y -0.205 4.594 0.000
z 0.000 0.000 -9.125
Polar
3z2-r2-18.250
x2-y2-0.042
xy-0.205
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.379 0.044 0.000
y 0.044 7.728 0.000
z 0.000 0.000 8.469


<r2> (average value of r2) Å2
<r2> 153.107
(<r2>)1/2 12.374