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

using model chemistry: B1B95/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/CEP-31G*
 hartrees
Energy at 0K-50.162781
Energy at 298.15K-50.173363
Nuclear repulsion energy136.100441
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 B1B95/CEP-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 3199 3062 16.58      
2 A 3163 3027 33.30      
3 A 3158 3022 23.10      
4 A 3155 3020 72.99      
5 A 3153 3018 25.65      
6 A 3149 3015 9.55      
7 A 3117 2983 3.98      
8 A 3080 2948 5.51      
9 A 3069 2938 22.65      
10 A 3068 2937 24.25      
11 A 1819 1741 204.44      
12 A 1514 1449 6.55      
13 A 1505 1441 29.71      
14 A 1496 1432 4.11      
15 A 1483 1419 1.25      
16 A 1470 1407 11.21      
17 A 1454 1392 13.50      
18 A 1417 1357 5.45      
19 A 1399 1339 4.75      
20 A 1386 1327 59.45      
21 A 1334 1277 0.28      
22 A 1316 1260 2.34      
23 A 1258 1204 37.73      
24 A 1171 1121 2.20      
25 A 1137 1088 0.24      
26 A 1078 1032 24.53      
27 A 1006 963 1.31      
28 A 962 921 1.67      
29 A 946 905 12.76      
30 A 925 885 3.27      
31 A 909 870 5.01      
32 A 731 700 5.14      
33 A 586 561 0.31      
34 A 516 494 7.19      
35 A 476 456 4.10      
36 A 320 306 3.17      
37 A 317 303 0.10      
38 A 269 258 0.62      
39 A 250 240 0.04      
40 A 207 198 0.53      
41 A 163 156 0.18      
42 A 60 57 3.43      

Unscaled Zero Point Vibrational Energy (zpe) 31094.3 cm-1
Scaled (by 0.9572) Zero Point Vibrational Energy (zpe) 29763.5 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 B1B95/CEP-31G*
ABC
0.14937 0.09029 0.07835

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.620 -0.890 -0.724
C2 0.828 -0.137 -0.166
H3 1.225 1.936 0.313
H4 2.365 0.770 1.055
H5 0.699 0.984 1.714
C6 1.313 0.949 0.799
H7 -0.795 -0.862 -1.312
C8 -0.684 -0.262 -0.397
H9 -0.933 1.678 -1.409
H10 -0.822 -2.024 0.916
H11 -1.304 1.717 0.337
H12 -1.222 -0.484 1.729
H13 -2.380 -1.217 0.596
H14 -2.444 0.961 -0.798
C15 -1.308 -1.045 0.783
C16 -1.374 1.105 -0.577

Atom - Atom Distances (Å)
  O1 C2 H3 H4 H5 C6 H7 C8 H9 H10 H11 H12 H13 H14 C15 C16
O11.22743.03562.54523.20982.40792.48562.41083.68563.15294.05833.77564.22504.46683.29653.6008
C21.22742.16352.16242.19191.53132.11551.53522.81802.73072.86932.81263.46993.50922.50742.5614
H33.03562.16351.79141.77291.10293.81452.99662.77304.49852.53893.72134.79773.95623.93982.8708
H42.54522.16241.79141.80411.09814.27283.53194.21624.24143.85703.85935.16535.15814.10634.0942
H53.20982.19191.77291.80411.10173.84682.81443.59103.46462.53882.41823.94694.02393.00233.0924
C62.40791.53131.10291.09811.10173.49032.62403.23263.66262.76583.05674.28634.08263.29333.0231
H72.48562.11553.81454.27283.84683.49031.10042.54612.51283.10313.09382.50582.51202.16442.1781
C82.41081.53522.99663.53192.81442.62401.10042.20252.20142.19932.20332.18452.18061.54671.5415
H93.68562.81802.77304.21623.59103.23262.54612.20254.37291.78463.82133.80691.78083.51541.1021
H103.15292.73074.49854.24143.46463.66262.51282.20144.37293.81591.78631.78353.80511.10093.5104
H114.05832.86932.53893.85702.53882.76583.10312.19931.78463.81592.60563.13551.77742.79761.1023
H123.77562.81263.72133.85932.41823.05673.09382.20333.82131.78632.60561.77823.15721.10302.8046
H134.22503.46994.79775.16533.94694.28632.50582.18453.80691.78353.13551.77822.58631.10202.7887
H144.46683.50923.95625.15814.02394.08262.51202.18061.78083.80511.77743.15722.58632.79541.1021
C153.29652.50743.93984.10633.00233.29332.16441.54673.51541.10092.79761.10301.10202.79542.5446
C163.60082.56142.87084.09423.09243.02312.17811.54151.10213.51041.10232.80462.78871.10212.5446

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 121.182 O1 C2 C8 121.136
C2 C6 H3 109.352 C2 C6 H4 109.548
C2 C6 H5 111.665 C2 C8 H7 105.583
C2 C8 C15 108.898 C2 C8 C16 112.716
H3 C6 H4 108.955 H3 C6 H5 107.065
H4 C6 H5 110.189 C6 C2 C8 117.677
H7 C8 C15 108.524 H7 C8 C16 109.939
C8 C15 H10 111.386 C8 C15 H12 111.408
C8 C15 H13 109.991 C8 C16 H9 111.767
C8 C16 H11 111.498 C8 C16 H14 110.038
H9 C16 H11 108.107 H9 C16 H14 107.789
H10 C15 H12 108.296 H10 C15 H13 108.117
H11 C16 H14 107.469 H12 C15 H13 107.501
C15 C8 C16 110.967
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.063      
2 C -0.278      
3 H 0.152      
4 H 0.199      
5 H 0.145      
6 C -0.404      
7 H 0.156      
8 C 0.170      
9 H 0.173      
10 H 0.191      
11 H 0.147      
12 H 0.131      
13 H 0.169      
14 H 0.168      
15 C -0.537      
16 C -0.520      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.147 1.718 1.284 3.034
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.310 3.677 2.899
y 3.677 -38.195 -1.342
z 2.899 -1.342 -37.611
Traceless
 xyz
x -2.407 3.677 2.899
y 3.677 0.766 -1.342
z 2.899 -1.342 1.642
Polar
3z2-r23.283
x2-y2-2.115
xy3.677
xz2.899
yz-1.342


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.704 -0.208 -0.145
y -0.208 8.098 0.329
z -0.145 0.329 7.421


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000