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All results from a given calculation for C5H10O (2-Butanone, 3-methyl-)

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-50.184387
Energy at 298.15K-50.195601
Nuclear repulsion energy134.821369
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 B3LYP/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3117 3038 33.16      
2 A 3086 3007 15.34      
3 A 3080 3002 67.73      
4 A 3077 2999 79.88      
5 A 3076 2997 26.78      
6 A 3068 2990 0.62      
7 A 3027 2950 2.39      
8 A 3005 2928 6.73      
9 A 2988 2912 24.23      
10 A 2984 2908 39.39      
11 A 1646 1604 141.45      
12 A 1531 1492 23.80      
13 A 1526 1487 10.88      
14 A 1516 1478 7.98      
15 A 1511 1473 0.20      
16 A 1498 1460 10.93      
17 A 1494 1456 5.18      
18 A 1439 1402 3.80      
19 A 1418 1382 8.03      
20 A 1414 1378 38.51      
21 A 1354 1320 1.18      
22 A 1342 1308 5.96      
23 A 1269 1236 46.75      
24 A 1190 1159 1.49      
25 A 1125 1096 0.22      
26 A 1088 1060 26.82      
27 A 1022 996 3.57      
28 A 975 950 0.77      
29 A 973 948 25.76      
30 A 942 918 1.23      
31 A 893 871 3.82      
32 A 705 687 3.02      
33 A 610 595 0.00      
34 A 518 505 3.76      
35 A 486 474 9.91      
36 A 327 319 2.37      
37 A 269 262 1.61      
38 A 238 232 0.43      
39 A 221 215 0.08      
40 A 190 185 0.24      
41 A 69 67 3.14      

Unscaled Zero Point Vibrational Energy (zpe) 30653.0 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 29871.4 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 B3LYP/CEP-121G
ABC
0.14721 0.08214 0.08116

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.631 -0.203 -1.206
C2 0.839 -0.035 -0.241
H3 2.028 1.101 1.159
H4 2.041 -0.640 1.448
H5 0.618 0.324 1.929
C6 1.396 0.203 1.170
H7 -0.815 -0.233 -1.544
C8 -0.687 -0.069 -0.466
H9 -0.910 2.121 -0.636
H10 -0.883 -2.219 0.004
H11 -1.259 1.497 0.993
H12 -1.223 -1.154 1.389
H13 -2.407 -1.310 0.078
H14 -2.424 1.250 -0.319
C15 -1.333 -1.263 0.302
C16 -1.353 1.285 -0.081

Atom - Atom Distances (Å)
  O1 C2 H3 H4 H5 C6 H7 C8 H9 H10 H11 H12 H13 H14 C15 C16
O11.25962.73022.72123.33692.42262.46932.43643.49003.44214.00933.97344.37944.39803.49003.5188
C21.25962.15992.15992.21091.53632.11491.54232.80392.79222.87552.85753.50213.50812.55342.5634
H32.73022.15991.76561.78491.09814.14393.37333.59064.56423.31463.96385.16254.69384.19763.6058
H42.72122.15991.76561.78541.09724.15633.38044.54713.62283.95753.30494.70205.16113.61724.1906
H53.33692.21091.78491.78541.09393.79822.75523.48473.52502.40242.42213.90443.89462.99532.9741
C62.42261.53631.09811.09721.09393.52852.66273.50163.52452.95882.95864.23654.23263.21763.2085
H72.46932.11494.14394.15633.79823.52851.09832.52542.51883.10263.10152.51492.50812.17582.1759
C82.43641.54233.37333.38042.75522.66271.09832.20872.20932.21532.21512.18972.18701.55911.5574
H93.49002.80393.59064.54713.48473.50162.52542.20874.38761.77963.86423.81141.77583.53721.0979
H103.44212.79224.56423.62283.52503.52452.51882.20934.38763.86341.78011.77643.81041.09803.5362
H114.00932.87553.31463.95752.40242.95883.10262.21531.77963.86342.68073.16731.77252.84581.0986
H123.97342.85753.96383.30492.42212.95863.10152.21513.86421.78012.68071.77333.18531.09872.8508
H134.37943.50215.16254.70203.90444.23652.51492.18973.81141.77643.16731.77332.59111.09822.8050
H144.39803.50814.69385.16113.89464.23262.50812.18701.77583.81041.77253.18532.59112.80961.0982
C153.49002.55344.19763.61722.99533.21762.17581.55913.53721.09802.84581.09871.09822.80962.5762
C163.51882.56343.60584.19062.97413.20852.17591.55741.09793.53621.09862.85082.80501.09822.5762

picture of 2-Butanone, 3-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C6 119.777 O1 C2 C8 120.477
C2 C6 H3 109.012 C2 C6 H4 109.063
C2 C6 H5 113.332 C2 C8 H7 105.197
C2 C8 C15 110.829 C2 C8 C16 111.573
H3 C6 H4 107.074 H3 C6 H5 109.030
H4 C6 H5 109.140 C6 C2 C8 119.746
H7 C8 C15 108.681 H7 C8 C16 108.806
C8 C15 H10 111.314 C8 C15 H12 111.735
C8 C15 H13 109.766 C8 C16 H9 111.392
C8 C16 H11 111.877 C8 C16 H14 109.673
H9 C16 H11 108.231 H9 C16 H14 107.931
H10 C15 H12 108.260 H10 C15 H13 107.977
H11 C16 H14 107.582 H12 C15 H13 107.643
C15 C8 C16 111.502
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.151      
2 C 0.116      
3 H 0.184      
4 H 0.184      
5 H 0.157      
6 C -0.568      
7 H 0.157      
8 C 0.006      
9 H 0.165      
10 H 0.166      
11 H 0.141      
12 H 0.142      
13 H 0.157      
14 H 0.157      
15 C -0.508      
16 C -0.506      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.213 0.428 2.489 3.358
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.711 0.959 5.602
y 0.959 -37.661 -0.636
z 5.602 -0.636 -41.385
Traceless
 xyz
x -2.188 0.959 5.602
y 0.959 3.887 -0.636
z 5.602 -0.636 -1.698
Polar
3z2-r2-3.397
x2-y2-4.050
xy0.959
xz5.602
yz-0.636


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.747 -0.037 -0.203
y -0.037 8.218 0.133
z -0.203 0.133 8.878


<r2> (average value of r2) Å2
<r2> 153.860
(<r2>)1/2 12.404