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All results from a given calculation for C5H8O (Cyclopentanone)

using model chemistry: wB97X-D/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at wB97X-D/6-31+G**
 hartrees
Energy at 0K-270.510072
Energy at 298.15K-270.519767
HF Energy-270.510072
Nuclear repulsion energy235.428116
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 wB97X-D/6-31+G**
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 3150 3000 9.79      
2 A 3143 2993 18.07      
3 A 3076 2929 25.14      
4 A 3070 2924 5.22      
5 A 1866 1777 278.16      
6 A 1528 1455 2.38      
7 A 1467 1397 0.06      
8 A 1357 1292 0.10      
9 A 1322 1259 1.72      
10 A 1229 1170 0.02      
11 A 1190 1133 0.46      
12 A 1052 1002 0.83      
13 A 980 933 0.22      
14 A 914 870 0.61      
15 A 827 788 1.03      
16 A 727 692 1.33      
17 A 577 550 5.71      
18 A 238 227 0.12      
19 B 3153 3003 30.86      
20 B 3145 2995 22.48      
21 B 3080 2933 43.10      
22 B 3070 2923 8.33      
23 B 1512 1440 6.72      
24 B 1467 1397 24.93      
25 B 1350 1286 0.90      
26 B 1313 1250 13.27      
27 B 1273 1212 1.71      
28 B 1186 1129 20.81      
29 B 1177 1121 49.03      
30 B 985 938 11.26      
31 B 937 893 0.99      
32 B 859 818 9.44      
33 B 596 567 2.51      
34 B 481 458 3.83      
35 B 460 438 5.65      
36 B 113 107 6.21      

Unscaled Zero Point Vibrational Energy (zpe) 26934.4 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 25649.6 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 wB97X-D/6-31+G**
ABC
0.22124 0.11184 0.08025

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.131
C2 0.000 0.000 0.924
C3 0.000 1.241 0.031
C4 0.000 -1.241 0.031
C5 0.299 0.711 -1.378
C6 -0.299 -0.711 -1.378
H7 -1.005 1.680 0.084
H8 1.005 -1.680 0.084
H9 0.703 1.988 0.407
H10 -0.703 -1.988 0.407
H11 -0.113 1.341 -2.170
H12 0.113 -1.341 -2.170
H13 1.383 0.654 -1.533
H14 -1.383 -0.654 -1.533

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.20712.43942.43943.59233.59232.83222.83222.72382.72384.50614.50613.97013.9701
C21.20711.52891.52892.42732.42732.13002.13002.17112.17113.37343.37342.89402.8940
C32.43941.52892.48181.53432.42531.09763.08931.09253.32592.20543.39412.16822.8194
C42.43941.52892.48182.42531.53433.08931.09763.32591.09253.39412.20542.81942.1682
C53.59232.42731.53432.42531.54252.18532.88962.23123.38701.09282.20711.09632.1723
C63.59232.42732.42531.53431.54252.88962.18533.38702.23122.20711.09282.17231.0963
H72.83222.13001.09763.08932.18532.88963.91491.76463.69462.44703.93113.06042.8646
H82.83222.13003.08931.09762.88962.18533.91493.69461.76463.93112.44702.86463.0604
H92.72382.17111.09253.32592.23123.38701.76463.69464.21722.77884.25062.45003.8852
H102.72382.17113.32591.09253.38702.23123.69461.76464.21724.25062.77883.88522.4500
H114.50613.37342.20543.39411.09282.20712.44703.93112.77884.25062.69141.76522.4496
H124.50613.37343.39412.20542.20711.09283.93112.44704.25062.77882.69142.44961.7652
H133.97012.89402.16822.81941.09632.17233.06042.86462.45003.88521.76522.44963.0604
H143.97012.89402.81942.16822.17231.09632.86463.06043.88522.45002.44961.76523.0604

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 125.743 O1 C2 C4 125.743
C2 C3 C5 104.820 C2 C3 H7 107.242
C2 C3 H9 110.734 C2 C4 C6 104.820
C2 C4 H8 107.242 C2 C4 H10 110.734
C3 C2 C4 108.513 C3 C5 C6 104.046
C3 C5 H11 113.099 C3 C5 H13 109.895
C4 C6 C5 104.046 C4 C6 H12 113.099
C4 C6 H14 109.895 C5 C3 H7 111.180
C5 C3 H9 115.260 C5 C6 H12 112.642
C5 C6 H14 109.653 C6 C4 H8 111.180
C6 C4 H10 115.260 C6 C5 H11 112.642
C6 C5 H13 109.653 H7 C3 H9 107.362
H8 C4 H10 107.362 H11 C5 H13 107.479
H12 C6 H14 107.479
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.439      
2 C 0.092      
3 C -0.200      
4 C -0.200      
5 C -0.333      
6 C -0.333      
7 H 0.192      
8 H 0.192      
9 H 0.188      
10 H 0.188      
11 H 0.161      
12 H 0.161      
13 H 0.166      
14 H 0.166      


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 -3.367 3.367
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.160 -0.201 0.000
y -0.201 -34.908 0.000
z 0.000 0.000 -45.488
Traceless
 xyz
x 5.038 -0.201 0.000
y -0.201 5.416 0.000
z 0.000 0.000 -10.453
Polar
3z2-r2-20.907
x2-y2-0.252
xy-0.201
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.044 0.059 0.000
y 0.059 8.686 0.000
z 0.000 0.000 9.547


<r2> (average value of r2) Å2
<r2> 153.041
(<r2>)1/2 12.371