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

using model chemistry: wB97X-D/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at wB97X-D/3-21G*
 hartrees
Energy at 0K-270.217015
Energy at 298.15K-270.227792
HF Energy-270.217015
Nuclear repulsion energy244.221363
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/3-21G*
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 3202 3035 6.52      
2 A 3166 3000 38.30      
3 A 3160 2995 23.45      
4 A 3157 2992 15.81      
5 A 3154 2989 0.13      
6 A 3150 2986 5.67      
7 A 3132 2969 1.23      
8 A 3086 2925 4.16      
9 A 3081 2920 11.56      
10 A 3078 2918 14.97      
11 A 1789 1696 105.26      
12 A 1583 1500 28.92      
13 A 1576 1493 9.91      
14 A 1565 1483 4.81      
15 A 1560 1479 5.32      
16 A 1546 1466 16.17      
17 A 1526 1447 12.88      
18 A 1481 1403 13.58      
19 A 1461 1385 15.62      
20 A 1445 1370 50.71      
21 A 1381 1308 0.90      
22 A 1365 1294 1.63      
23 A 1274 1208 40.98      
24 A 1224 1160 3.38      
25 A 1156 1095 2.38      
26 A 1131 1072 33.79      
27 A 1057 1002 6.11      
28 A 1008 956 0.06      
29 A 983 932 2.65      
30 A 967 916 30.41      
31 A 908 861 6.34      
32 A 723 686 4.15      
33 A 627 594 0.28      
34 A 528 500 6.12      
35 A 494 469 4.51      
36 A 349 331 2.17      
37 A 296 281 1.66      
38 A 271 257 0.11      
39 A 262 249 0.06      
40 A 225 213 0.19      
41 A 161 153 0.37      
42 A 57 54 2.51      

Unscaled Zero Point Vibrational Energy (zpe) 31673.2 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 30019.8 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 wB97X-D/3-21G*
ABC
0.15064 0.09066 0.07994

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.656 -0.845 -0.721
C2 0.831 -0.112 -0.175
H3 1.119 1.950 0.365
H4 2.283 0.815 1.091
H5 0.608 0.931 1.717
C6 1.236 0.960 0.822
H7 -0.763 -0.889 -1.309
C8 -0.668 -0.279 -0.405
H9 -0.946 1.637 -1.423
H10 -0.765 -2.018 0.918
H11 -1.325 1.673 0.315
H12 -1.172 -0.478 1.713
H13 -2.334 -1.242 0.612
H14 -2.441 0.897 -0.820
C15 -1.269 -1.055 0.786
C16 -1.383 1.067 -0.596

Atom - Atom Distances (Å)
  O1 C2 H3 H4 H5 C6 H7 C8 H9 H10 H11 H12 H13 H14 C15 C16
O11.23123.04602.53563.19322.41062.49002.41243.66423.15014.03753.74914.22534.45343.29693.5923
C21.23122.15112.13782.17211.51842.10521.52562.78892.71512.84202.77653.45113.48472.49412.5433
H33.04602.15111.78041.76851.09673.79582.95932.74994.42712.46093.60064.70883.89753.86142.8222
H42.53562.13781.78041.79251.09074.23603.48504.17444.16503.78983.74175.07725.09704.02594.0435
H53.19322.17211.76851.79251.09453.78882.75683.57453.34982.50142.27073.82083.96722.88713.0553
C62.41061.51841.09671.09071.09453.45772.58193.20333.58882.70712.94334.19954.02783.21492.9801
H72.49002.10523.79584.23603.78883.45771.09462.53572.49693.08543.07762.50692.49962.16202.1723
C82.41241.52562.95933.48502.75682.58191.09462.18782.18702.18252.18672.17662.16831.54351.5361
H93.66422.78892.74994.17443.57453.20332.53572.18784.34421.77893.78973.78901.77373.49751.0953
H103.15012.71514.42714.16503.34983.58882.49692.18704.34423.78171.77971.77663.78521.09453.4913
H114.03752.84202.46093.78982.50142.70713.08542.18251.77893.78172.57073.09891.77042.76921.0957
H123.74912.77653.60063.74172.27072.94333.07762.18673.78971.77972.57071.77323.14961.09602.7865
H134.22533.45114.70885.07723.82084.19952.50692.17663.78901.77663.09891.77322.57661.09512.7739
H144.45343.48473.89755.09703.96724.02782.49962.16831.77373.78521.77043.14962.57662.78671.0951
C153.29692.49413.86144.02592.88713.21492.16201.54353.49751.09452.76921.09601.09512.78672.5349
C163.59232.54332.82224.04353.05532.98012.17231.53611.09533.49131.09572.78652.77391.09512.5349

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 122.148 O1 C2 C8 121.745
C2 C6 H3 109.635 C2 C6 H4 108.934
C2 C6 H5 111.430 C2 C8 H7 105.742
C2 C8 C15 108.708 C2 C8 C16 112.338
H3 C6 H4 108.959 H3 C6 H5 107.627
H4 C6 H5 110.217 C6 C2 C8 116.032
H7 C8 C15 108.885 H7 C8 C16 110.197
C8 C15 H10 110.849 C8 C15 H12 110.739
C8 C15 H13 109.990 C8 C16 H9 111.388
C8 C16 H11 110.937 C8 C16 H14 109.852
H9 C16 H11 108.569 H9 C16 H14 108.151
H10 C15 H12 108.677 H10 C15 H13 108.455
H11 C16 H14 107.831 H12 C15 H13 108.052
C15 C8 C16 110.796
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.457      
2 C 0.471      
3 H 0.241      
4 H 0.248      
5 H 0.226      
6 C -0.703      
7 H 0.248      
8 C -0.383      
9 H 0.216      
10 H 0.226      
11 H 0.206      
12 H 0.205      
13 H 0.220      
14 H 0.219      
15 C -0.587      
16 C -0.593      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.039 1.551 1.237 2.844
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.895 3.327 2.649
y 3.327 -38.257 -1.254
z 2.649 -1.254 -38.167
Traceless
 xyz
x -2.683 3.327 2.649
y 3.327 1.273 -1.254
z 2.649 -1.254 1.409
Polar
3z2-r22.818
x2-y2-2.637
xy3.327
xz2.649
yz-1.254


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.086 -0.143 -0.083
y -0.143 7.324 0.355
z -0.083 0.355 6.839


<r2> (average value of r2) Å2
<r2> 179.081
(<r2>)1/2 13.382