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

using model chemistry: HF/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-270.098868
Energy at 298.15K-270.109810
Nuclear repulsion energy245.584617
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 HF/6-311G**
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 3281 2981 18.52      
2 A 3240 2944 55.60      
3 A 3236 2940 50.57      
4 A 3234 2938 53.55      
5 A 3224 2929 26.53      
6 A 3221 2927 13.45      
7 A 3203 2910 1.07      
8 A 3178 2887 7.19      
9 A 3165 2875 14.44      
10 A 3160 2871 32.89      
11 A 1985 1803 251.49      
12 A 1629 1480 17.92      
13 A 1623 1475 6.29      
14 A 1613 1465 2.26      
15 A 1607 1460 1.08      
16 A 1597 1451 8.82      
17 A 1584 1439 11.33      
18 A 1545 1404 4.73      
19 A 1526 1386 3.71      
20 A 1520 1381 35.88      
21 A 1469 1334 1.96      
22 A 1457 1323 2.15      
23 A 1367 1242 45.71      
24 A 1284 1167 4.54      
25 A 1224 1112 1.10      
26 A 1189 1080 15.15      
27 A 1097 997 2.34      
28 A 1040 945 0.70      
29 A 1026 933 16.19      
30 A 1005 913 0.50      
31 A 957 869 3.44      
32 A 770 700 4.10      
33 A 652 592 1.06      
34 A 565 513 13.30      
35 A 533 484 5.90      
36 A 356 323 1.57      
37 A 291 264 1.47      
38 A 276 251 0.44      
39 A 255 232 0.44      
40 A 227 206 0.69      
41 A 138 126 0.02      
42 A 56 51 4.41      

Unscaled Zero Point Vibrational Energy (zpe) 32802.1 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 29800.8 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 HF/6-311G**
ABC
0.15266 0.09047 0.08015

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.558 -0.841 -0.788
C2 0.822 -0.139 -0.173
H3 1.313 1.855 0.418
H4 2.396 0.614 1.047
H5 0.788 0.854 1.755
C6 1.363 0.854 0.836
H7 -0.806 -0.793 -1.299
C8 -0.687 -0.231 -0.379
H9 -0.899 1.711 -1.343
H10 -0.853 -2.014 0.856
H11 -1.301 1.727 0.369
H12 -1.241 -0.527 1.715
H13 -2.379 -1.196 0.562
H14 -2.405 1.009 -0.786
C15 -1.323 -1.040 0.761
C16 -1.356 1.138 -0.542

Atom - Atom Distances (Å)
  O1 C2 H3 H4 H5 C6 H7 C8 H9 H10 H11 H12 H13 H14 C15 C16
O11.18862.96412.48723.15192.35542.41932.36203.58563.14614.01323.76824.17704.37393.27723.5305
C21.18862.13772.12952.16921.51592.08441.52542.78462.71672.87782.82303.44943.47982.50672.5509
H32.96412.13771.76371.75111.08643.80152.99802.83084.45592.61703.72544.79123.99873.93042.9250
H42.48722.12951.76371.77421.08124.21173.50064.21584.18373.92013.87015.12955.15484.08074.1079
H53.15192.16921.75111.77421.08463.81842.81193.63033.42402.65432.45423.95604.08383.00513.1543
C62.35541.51591.08641.08121.08463.46082.61873.25603.62472.84223.07604.27534.10593.28783.0613
H72.41932.08443.80154.21173.81843.46081.08442.50612.47813.06203.05712.46962.46332.13832.1453
C82.36201.52542.99803.50062.81192.61871.08442.17892.17562.18422.18652.16292.15811.53591.5321
H93.58562.78462.83084.21583.63033.25602.50612.17894.32651.75893.80563.77771.75303.48981.0864
H103.14612.71674.45594.18373.42403.62472.47812.17564.32653.79881.75981.75583.77451.08513.4843
H114.01322.87782.61703.92012.65432.84223.06202.18421.75893.79882.62623.12091.75192.79481.0861
H123.76822.82303.72543.87012.45423.07603.05712.18653.80561.75982.62621.75263.15821.08652.8070
H134.17703.44944.79125.12953.95604.27532.46962.16293.77771.75583.12091.75262.58461.08552.7766
H144.37393.47983.99875.15484.08384.10592.46332.15811.75303.77451.75193.15822.58462.78671.0854
C153.27722.50673.93044.08073.00513.28782.13831.53593.48981.08512.79481.08651.08552.78672.5380
C163.53052.55092.92504.10793.15433.06132.14531.53211.08643.48431.08612.80702.77661.08542.5380

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 120.649 O1 C2 C8 120.482
C2 C6 H3 109.353 C2 C6 H4 109.010
C2 C6 H5 111.988 C2 C8 H7 104.747
C2 C8 C15 109.937 C2 C8 C16 113.090
H3 C6 H4 108.911 H3 C6 H5 107.522
H4 C6 H5 110.002 C6 C2 C8 118.867
H7 C8 C15 108.146 H7 C8 C16 108.944
C8 C15 H10 111.038 C8 C15 H12 111.832
C8 C15 H13 110.007 C8 C16 H9 111.499
C8 C16 H11 111.944 C8 C16 H14 109.893
H9 C16 H11 108.122 H9 C16 H14 107.641
H10 C15 H12 108.261 H10 C15 H13 107.970
H11 C16 H14 107.565 H12 C15 H13 107.589
C15 C8 C16 111.635
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.403      
2 C 0.315      
3 H 0.116      
4 H 0.129      
5 H 0.108      
6 C -0.266      
7 H 0.129      
8 C -0.260      
9 H 0.103      
10 H 0.110      
11 H 0.091      
12 H 0.088      
13 H 0.102      
14 H 0.102      
15 C -0.225      
16 C -0.238      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.093 1.749 1.530 3.127
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.452 3.598 3.276
y 3.598 -39.281 -1.597
z 3.276 -1.597 -39.114
Traceless
 xyz
x -2.254 3.598 3.276
y 3.598 1.001 -1.597
z 3.276 -1.597 1.253
Polar
3z2-r22.506
x2-y2-2.171
xy3.598
xz3.276
yz-1.597


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.751 -0.132 -0.085
y -0.132 8.061 0.298
z -0.085 0.298 7.637


<r2> (average value of r2) Å2
<r2> 179.507
(<r2>)1/2 13.398