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

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CBS-Q
 hartrees
Energy at 0K-270.054035
Energy at 298.15K-270.046521
HF Energy-268.831988
Nuclear repulsion energy231.312766
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 CBS-Q
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3408 3408 12.79      
2 A' 3332 3332 13.95      
3 A' 3312 3312 7.94      
4 A' 3310 3310 24.24      
5 A' 3190 3190 6.04      
6 A' 1992 1992 201.26      
7 A' 1644 1644 14.06      
8 A' 1602 1602 11.49      
9 A' 1556 1556 89.62      
10 A' 1520 1520 5.09      
11 A' 1316 1316 32.00      
12 A' 1293 1293 69.04      
13 A' 1207 1207 14.54      
14 A' 1176 1176 9.86      
15 A' 1058 1058 45.72      
16 A' 985 985 23.84      
17 A' 866 866 0.48      
18 A' 803 803 0.14      
19 A' 637 637 17.95      
20 A' 396 396 4.69      
21 A' 256 256 4.96      
22 A" 3393 3393 0.29      
23 A" 3304 3304 22.16      
24 A" 3251 3251 17.01      
25 A" 1611 1611 8.38      
26 A" 1590 1590 1.48      
27 A" 1317 1317 0.13      
28 A" 1239 1239 1.11      
29 A" 1211 1211 1.90      
30 A" 1161 1161 3.64      
31 A" 972 972 0.92      
32 A" 898 898 5.67      
33 A" 655 655 4.82      
34 A" 281 281 0.90      
35 A" 153 153 0.00      
36 A" 69 69 1.98      

Unscaled Zero Point Vibrational Energy (zpe) 27980.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 27980.4 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 CBS-Q
ABC
0.23884 0.08782 0.07669

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.464 -0.571 0.000
C2 -0.287 -0.759 0.000
C3 0.298 -2.155 0.000
C4 0.687 0.376 0.000
C5 0.298 1.635 0.742
C6 0.298 1.635 -0.742
H7 -0.499 -2.890 0.000
H8 0.928 -2.296 -0.877
H9 0.928 -2.296 0.877
H10 1.731 0.105 0.000
H11 -0.655 1.617 1.244
H12 1.084 2.160 1.261
H13 -0.655 1.617 -1.244
H14 1.084 2.160 -1.261

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.19202.36912.35002.91922.91922.51133.07703.07703.26542.64403.94202.64403.9420
C21.19201.51321.49552.57372.57372.14092.14672.14672.19482.70723.46262.70723.4626
C32.36911.51322.56043.86153.86151.08391.08921.08922.67564.08434.56334.08434.5633
C42.35001.49552.56041.51211.51213.47402.82272.82271.07852.21062.22052.21062.2205
C52.91922.57373.86151.51211.48424.65354.29783.98342.22331.07691.07812.20272.2150
C62.91922.57373.86151.51211.48424.65353.98344.29782.22332.20272.21501.07691.0781
H72.51132.14091.08393.47404.65354.65351.77711.77713.73334.67785.43984.67785.4398
H83.07702.14671.08922.82274.29783.98341.77711.75402.67924.72414.94504.23724.4752
H93.07702.14671.08922.82273.98344.29781.77711.75402.67924.23724.47524.72414.9450
H103.26542.19482.67561.07852.22332.22333.73332.67922.67923.08602.49653.08602.4965
H112.64402.70724.08432.21061.07692.20274.67784.72414.23723.08601.82112.48763.0970
H123.94203.46264.56332.22051.07812.21505.43984.94504.47522.49651.82113.09702.5227
H132.64402.70724.08432.21062.20271.07694.67784.23724.72413.08602.48763.09701.8211
H143.94203.46264.56332.22052.21501.07815.43984.47524.94502.49653.09702.52271.8211

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 121.812 O1 C2 C4 121.546
C2 C3 H7 109.944 C2 C3 H8 110.083
C2 C3 H9 110.083 C2 C4 C5 117.684
C2 C4 C6 117.684 C2 C4 H10 116.066
C3 C2 C4 116.642 C4 C5 C6 60.608
C4 C5 H11 116.255 C4 C5 H12 117.041
C4 C6 C5 60.608 C4 C6 H13 116.255
C4 C6 H14 117.041 C5 C4 C6 58.785
C5 C4 H10 117.256 C5 C6 H13 117.765
C5 C6 H14 118.793 C6 C4 H10 117.256
C6 C5 H11 117.765 C6 C5 H12 118.793
H7 C3 H8 109.720 H7 C3 H9 109.720
H8 C3 H9 107.251 H11 C5 H12 115.351
H13 C6 H14 115.351
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability