return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H8O (Methyl cyclopropyl ketone)

using model chemistry: M06-2X/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/6-31G(2df,p)
 hartrees
Energy at 0K-270.442059
Energy at 298.15K-270.450767
HF Energy-270.442059
Nuclear repulsion energy231.541345
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 M06-2X/6-31G(2df,p)
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' 3275 3119 2.70      
2 A' 3210 3057 6.58      
3 A' 3182 3031 6.27      
4 A' 3169 3018 6.30      
5 A' 3054 2908 1.29      
6 A' 1860 1772 131.70      
7 A' 1502 1430 15.09      
8 A' 1464 1394 11.21      
9 A' 1425 1357 111.38      
10 A' 1371 1306 11.65      
11 A' 1243 1183 0.63      
12 A' 1202 1145 84.65      
13 A' 1116 1063 12.68      
14 A' 1072 1021 11.51      
15 A' 983 936 46.35      
16 A' 951 906 1.73      
17 A' 814 775 2.10      
18 A' 767 731 0.16      
19 A' 601 572 12.74      
20 A' 377 359 4.31      
21 A' 255 243 3.87      
22 A" 3262 3107 1.00      
23 A" 3168 3017 8.05      
24 A" 3129 2980 4.48      
25 A" 1474 1404 8.57      
26 A" 1453 1384 3.51      
27 A" 1212 1155 0.14      
28 A" 1135 1081 1.79      
29 A" 1103 1050 1.25      
30 A" 1054 1003 3.85      
31 A" 919 875 0.89      
32 A" 855 814 3.58      
33 A" 604 575 1.41      
34 A" 274 261 0.44      
35 A" 133 127 0.06      
36 A" 77 73 1.72      

Unscaled Zero Point Vibrational Energy (zpe) 26371.8 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 25116.5 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 M06-2X/6-31G(2df,p)
ABC
0.24264 0.08880 0.07762

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.467 -0.539 0.000
C2 -0.279 -0.751 0.000
C3 0.293 -2.149 0.000
C4 0.708 0.368 0.000
C5 0.293 1.618 0.742
C6 0.293 1.618 -0.742
H7 -0.513 -2.882 0.000
H8 0.928 -2.289 -0.880
H9 0.928 -2.289 0.880
H10 1.757 0.099 0.000
H11 -0.669 1.559 1.236
H12 1.068 2.163 1.264
H13 -0.669 1.559 -1.236
H14 1.068 2.163 -1.264

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.20722.38552.35592.88092.88092.53003.09433.09433.28622.56223.91452.56223.9145
C21.20721.51081.49102.54732.54732.14422.14412.14412.20562.64863.44992.64863.4499
C32.38551.51082.55113.84013.84011.08891.09431.09432.68334.02564.56054.02564.5605
C42.35591.49102.55111.51221.51223.47142.80752.80751.08292.20062.22532.20062.2253
C52.88092.54733.84011.51221.48374.63174.27823.96132.23651.08291.08202.20012.2187
C62.88092.54733.84011.51221.48374.63173.96134.27822.23652.20012.21871.08291.0820
H72.53002.14421.08893.47144.63174.63171.78951.78953.74694.61255.43614.61255.4361
H83.09432.14411.09432.80754.27823.96131.78951.75992.67694.67314.94384.18174.4712
H93.09432.14411.09432.80753.96134.27821.78951.75992.67694.18174.47124.67314.9438
H103.28622.20562.68331.08292.23652.23653.74692.67692.67693.08932.51663.08932.5166
H112.56222.64864.02562.20061.08292.20014.61254.67314.18173.08931.83912.47213.1038
H123.91453.44994.56052.22531.08202.21875.43614.94384.47122.51661.83913.10382.5287
H132.56222.64864.02562.20062.20011.08294.61254.18174.67313.08932.47213.10381.8391
H143.91453.44994.56052.22532.21871.08205.43614.47124.94382.51663.10382.52871.8391

picture of Methyl cyclopropyl ketone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 122.324 O1 C2 C4 121.293
C2 C3 H7 110.070 C2 C3 H8 109.743
C2 C3 H9 109.743 C2 C4 C5 116.027
C2 C4 C6 116.027 C2 C4 H10 117.054
C3 C2 C4 116.383 C4 C5 C6 60.622
C4 C5 H11 114.980 C4 C5 H12 117.177
C4 C6 C5 60.622 C4 C6 H13 114.980
C4 C6 H14 117.177 C5 C4 C6 58.756
C5 C4 H10 118.093 C5 C6 H13 117.152
C5 C6 H14 118.877 C6 C4 H10 118.093
C6 C5 H11 117.152 C6 C5 H12 118.877
H7 C3 H8 110.098 H7 C3 H9 110.098
H8 C3 H9 107.040 H11 C5 H12 116.324
H13 C6 H14 116.324
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.362      
2 C 0.411      
3 C -0.513      
4 C -0.164      
5 C -0.273      
6 C -0.273      
7 H 0.159      
8 H 0.155      
9 H 0.155      
10 H 0.113      
11 H 0.158      
12 H 0.137      
13 H 0.158      
14 H 0.137      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.661 -0.058 0.000 2.661
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.940 -0.787 0.000
y -0.787 -33.812 0.000
z 0.000 0.000 -35.563
Traceless
 xyz
x -4.252 -0.787 0.000
y -0.787 3.440 0.000
z 0.000 0.000 0.812
Polar
3z2-r21.625
x2-y2-5.128
xy-0.787
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.770 0.201 0.000
y 0.201 9.357 0.000
z 0.000 0.000 6.772


<r2> (average value of r2) Å2
<r2> 166.110
(<r2>)1/2 12.888