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

using model chemistry: QCISD/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 QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-269.916496
Energy at 298.15K-269.925205
HF Energy-268.863289
Nuclear repulsion energy230.708613
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 QCISD/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' 3296 3123 3.56      
2 A' 3226 3056 6.71      
3 A' 3204 3036 7.12      
4 A' 3195 3027 7.34      
5 A' 3083 2921 2.23      
6 A' 1816 1720 105.40      
7 A' 1521 1441 11.03      
8 A' 1496 1417 11.62      
9 A' 1447 1371 90.98      
10 A' 1408 1334 6.46      
11 A' 1244 1179 7.03      
12 A' 1216 1152 75.90      
13 A' 1128 1069 10.72      
14 A' 1089 1032 8.95      
15 A' 992 940 37.71      
16 A' 944 895 7.91      
17 A' 814 771 1.49      
18 A' 764 723 0.16      
19 A' 595 563 13.10      
20 A' 373 353 3.96      
21 A' 243 230 4.14      
22 A" 3283 3111 0.38      
23 A" 3191 3023 9.49      
24 A" 3155 2989 6.34      
25 A" 1506 1426 7.68      
26 A" 1475 1398 2.65      
27 A" 1230 1165 0.17      
28 A" 1153 1093 1.31      
29 A" 1119 1060 1.43      
30 A" 1071 1014 3.30      
31 A" 914 866 0.72      
32 A" 854 809 4.38      
33 A" 610 577 1.70      
34 A" 266 252 0.52      
35 A" 152 144 0.02      
36 A" 69 66 1.62      

Unscaled Zero Point Vibrational Energy (zpe) 26569.3 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 25171.8 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 QCISD/6-31G(2df,p)
ABC
0.24060 0.08807 0.07699

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.476 -0.546 0.000
C2 -0.280 -0.755 0.000
C3 0.296 -2.155 0.000
C4 0.705 0.369 0.000
C5 0.296 1.625 0.746
C6 0.296 1.625 -0.746
H7 -0.507 -2.890 0.000
H8 0.930 -2.295 -0.881
H9 0.930 -2.295 0.881
H10 1.754 0.101 0.000
H11 -0.665 1.580 1.242
H12 1.075 2.167 1.266
H13 -0.665 1.580 -1.242
H14 1.075 2.167 -1.266

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.21402.39432.36512.89992.89992.53713.10303.10303.29462.59193.93342.59193.9334
C21.21401.51411.49462.56012.56012.14712.14782.14782.20752.67263.46122.67263.4612
C32.39431.51412.55653.85303.85301.08911.09411.09412.68614.05174.57064.05174.5706
C42.36511.49462.55651.51731.51733.47702.81452.81451.08282.21052.23042.21052.2304
C52.89992.56013.85301.51731.49214.64654.29133.97342.23721.08241.08222.20842.2248
C62.89992.56013.85301.51731.49214.64653.97344.29132.23722.20842.22481.08241.0822
H72.53712.14711.08913.47704.64654.64651.78781.78783.74984.64225.44824.64225.4482
H83.10302.14781.09412.81454.29133.97341.78781.76112.68244.69744.95384.20624.4811
H93.10302.14781.09412.81453.97344.29131.78781.76112.68244.20624.48114.69744.9538
H103.29462.20752.68611.08282.23722.23723.74982.68242.68243.09542.51653.09542.5165
H112.59192.67264.05172.21051.08242.20844.64224.69744.20623.09541.83672.48343.1084
H123.93343.46124.57062.23041.08222.22485.44824.95384.48112.51651.83673.10842.5323
H132.59192.67264.05172.21052.20841.08244.64224.20624.69743.09542.48343.10841.8367
H143.93343.46124.57062.23042.22481.08225.44824.48114.95382.51653.10842.53231.8367

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 122.336 O1 C2 C4 121.308
C2 C3 H7 110.067 C2 C3 H8 109.826
C2 C3 H9 109.826 C2 C4 C5 116.419
C2 C4 C6 116.419 C2 C4 H10 116.941
C3 C2 C4 116.356 C4 C5 C6 60.549
C4 C5 H11 115.466 C4 C5 H12 117.199
C4 C6 C5 60.549 C4 C6 H13 115.466
C4 C6 H14 117.199 C5 C4 C6 58.903
C5 C4 H10 117.755 C5 C6 H13 117.254
C5 C6 H14 118.723 C6 C4 H10 117.755
C6 C5 H11 117.254 C6 C5 H12 118.723
H7 C3 H8 109.943 H7 C3 H9 109.943
H8 C3 H9 107.190 H11 C5 H12 116.104
H13 C6 H14 116.104
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability