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

using model chemistry: PBE1PBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBE1PBE/6-31G*
 hartrees
Energy at 0K-271.454127
Energy at 298.15K 
HF Energy-271.454127
Nuclear repulsion energy244.603116
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 PBE1PBE/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 3186 3027 17.93      
2 A 3165 3008 3.46      
3 A 3156 2999 23.74      
4 A 3154 2998 15.20      
5 A 3152 2995 48.04      
6 A 3146 2990 3.14      
7 A 3101 2947 3.92      
8 A 3087 2934 2.42      
9 A 3072 2919 15.11      
10 A 3069 2917 22.34      
11 A 1846 1754 167.63      
12 A 1539 1463 23.43      
13 A 1532 1455 9.90      
14 A 1521 1445 6.33      
15 A 1514 1438 0.24      
16 A 1500 1425 5.75      
17 A 1498 1424 3.25      
18 A 1443 1372 3.95      
19 A 1422 1351 6.05      
20 A 1405 1336 42.29      
21 A 1367 1299 0.40      
22 A 1347 1280 1.67      
23 A 1279 1215 55.52      
24 A 1201 1142 1.58      
25 A 1146 1089 0.08      
26 A 1092 1037 30.42      
27 A 1024 973 2.42      
28 A 980 931 2.13      
29 A 975 927 20.85      
30 A 943 896 1.35      
31 A 922 876 5.00      
32 A 730 694 3.46      
33 A 624 593 0.03      
34 A 533 506 5.94      
35 A 492 468 6.48      
36 A 332 316 1.96      
37 A 276 262 1.35      
38 A 247 235 0.33      
39 A 235 223 0.13      
40 A 198 189 0.24      
41 A 73 69 2.02      
42 A 112i 106i 2.25      

Unscaled Zero Point Vibrational Energy (zpe) 31204.7 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 29653.9 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 PBE1PBE/6-31G*
ABC
0.15227 0.08529 0.08412

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.601 -0.251 -1.113
C2 0.815 -0.043 -0.212
H3 1.945 1.168 1.140
H4 1.967 -0.551 1.517
H5 0.530 0.422 1.922
C6 1.322 0.269 1.184
H7 -0.797 -0.307 -1.519
C8 -0.687 -0.091 -0.451
H9 -0.893 2.066 -0.728
H10 -0.880 -2.192 0.116
H11 -1.265 1.516 0.917
H12 -1.237 -1.058 1.433
H13 -2.402 -1.286 0.124
H14 -2.411 1.219 -0.394
C15 -1.332 -1.223 0.354
C16 -1.345 1.257 -0.145

Atom - Atom Distances (Å)
  O1 C2 H3 H4 H5 C6 H7 C8 H9 H10 H11 H12 H13 H14 C15 C16
O11.21322.68442.67243.28732.37142.43332.38783.42583.38203.93163.89734.31534.33293.42053.4481
C21.21322.13842.13942.20251.51802.09231.52202.76282.75692.83452.81933.46463.46912.51452.5220
H32.68442.13841.75951.78011.09514.09513.32353.51444.50783.23683.89435.09384.61904.13223.5333
H42.67242.13941.75951.78141.09484.11393.33634.48003.57293.88343.24534.64435.09483.56264.1233
H53.28732.20251.78011.78141.09263.75972.71543.42803.47582.33052.35623.83983.82782.93822.9130
C62.37141.51801.09511.09481.09263.48302.61513.43423.47052.88462.89304.17184.16303.15563.1394
H72.43332.09234.09514.11393.75973.48301.09612.50402.49723.07903.07812.49622.48992.15242.1531
C82.38781.52203.32353.33632.71542.61511.09612.18502.18482.18802.18742.16682.16581.53081.5307
H93.42582.76283.51444.48003.42803.43422.50402.18504.34161.77413.81453.77341.77073.49061.0953
H103.38202.75694.50783.57293.47583.47052.49722.18484.34163.81341.77431.77113.77361.09533.4902
H113.93162.83453.23683.88342.33052.88463.07902.18801.77413.81342.62543.12591.76682.79751.0961
H123.89732.81933.89433.24532.35622.89303.07812.18743.81451.77432.62541.76713.14671.09632.8037
H134.31533.46465.09384.64433.83984.17182.49622.16683.77341.77113.12591.76712.55751.09572.7665
H144.33293.46914.61905.09483.82784.16302.48992.16581.77073.77361.76683.14672.55752.77251.0957
C153.42052.51454.13223.56262.93823.15562.15241.53083.49061.09532.79751.09631.09572.77252.5297
C163.44812.52203.53334.12332.91303.13942.15311.53071.09533.49021.09612.80372.76651.09572.5297

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 120.106 O1 C2 C8 121.206
C2 C6 H3 108.763 C2 C6 H4 108.859
C2 C6 H5 114.074 C2 C8 H7 104.936
C2 C8 C15 110.905 C2 C8 C16 111.412
H3 C6 H4 106.928 H3 C6 H5 108.919
H4 C6 H5 109.058 C6 C2 C8 118.688
H7 C8 C15 108.918 H7 C8 C16 108.983
C8 C15 H10 111.521 C8 C15 H12 111.671
C8 C15 H13 110.062 C8 C16 H9 111.548
C8 C16 H11 111.739 C8 C16 H14 109.996
H9 C16 H11 108.109 H9 C16 H14 107.843
H10 C15 H12 108.110 H10 C15 H13 107.866
H11 C16 H14 107.435 H12 C15 H13 107.443
C15 C8 C16 111.439
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.443      
2 C 0.465      
3 H 0.212      
4 H 0.212      
5 H 0.178      
6 C -0.613      
7 H 0.193      
8 C -0.231      
9 H 0.188      
10 H 0.189      
11 H 0.173      
12 H 0.173      
13 H 0.184      
14 H 0.184      
15 C -0.531      
16 C -0.531      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.864 0.458 1.999 2.771
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.071 0.997 4.357
y 0.997 -36.847 -0.628
z 4.357 -0.628 -39.537
Traceless
 xyz
x -1.879 0.997 4.357
y 0.997 2.957 -0.628
z 4.357 -0.628 -1.078
Polar
3z2-r2-2.157
x2-y2-3.224
xy0.997
xz4.357
yz-0.628


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.781 -0.020 -0.080
y -0.020 7.406 0.138
z -0.080 0.138 7.898


<r2> (average value of r2) Å2
<r2> 179.336
(<r2>)1/2 13.392