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

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G4
 hartrees
Energy at 0K-270.370856
Energy at 298.15K-270.363317
HF Energy-270.565389
Nuclear repulsion energy230.187484
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 B3LYP/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' 3243 3129 5.97      
2 A' 3171 3060 10.68      
3 A' 3153 3043 10.23      
4 A' 3142 3032 10.80      
5 A' 3033 2927 2.93      
6 A' 1792 1730 120.51      
7 A' 1485 1433 8.02      
8 A' 1464 1413 11.00      
9 A' 1407 1358 92.57      
10 A' 1375 1327 9.64      
11 A' 1223 1180 10.98      
12 A' 1190 1148 83.93      
13 A' 1110 1071 14.43      
14 A' 1064 1027 9.67      
15 A' 967 933 52.51      
16 A' 918 886 12.49      
17 A' 805 777 2.40      
18 A' 749 723 0.14      
19 A' 590 569 9.67      
20 A' 371 358 4.34      
21 A' 238 230 4.20      
22 A" 3229 3116 0.33      
23 A" 3141 3031 15.10      
24 A" 3092 2984 8.34      
25 A" 1476 1425 7.22      
26 A" 1453 1403 2.75      
27 A" 1212 1169 0.11      
28 A" 1131 1092 1.07      
29 A" 1097 1058 1.10      
30 A" 1051 1014 4.15      
31 A" 874 843 0.00      
32 A" 831 802 3.62      
33 A" 604 583 1.37      
34 A" 256 247 0.40      
35 A" 149 144 0.06      
36 A" 67 65 1.80      

Unscaled Zero Point Vibrational Energy (zpe) 26076.5 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 25163.8 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 B3LYP/6-31G(2df,p)
ABC
0.24039 0.08733 0.07638

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.481 -0.559 0.000
C2 -0.283 -0.758 0.000
C3 0.300 -2.158 0.000
C4 0.697 0.368 0.000
C5 0.300 1.636 0.744
C6 0.300 1.636 -0.744
H7 -0.501 -2.898 0.000
H8 0.938 -2.302 -0.880
H9 0.938 -2.302 0.880
H10 1.747 0.098 0.000
H11 -0.662 1.599 1.243
H12 1.084 2.166 1.271
H13 -0.662 1.599 -1.243
H14 1.084 2.166 -1.271

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.21392.39332.36732.92282.92282.53603.10813.10813.29422.62213.95282.62213.9528
C21.21391.51671.49352.57392.57392.15122.15592.15592.20352.69193.46982.69193.4698
C32.39331.51672.55783.86653.86651.09041.09631.09632.68034.07314.57544.07314.5754
C42.36731.49352.55781.52271.52273.47962.82162.82161.08432.21542.23572.21542.2357
C52.92282.57393.86651.52271.48864.66414.30693.99122.23951.08391.08392.20822.2270
C62.92282.57393.86651.52271.48864.66413.99124.30692.23952.20822.22701.08391.0839
H72.53602.15121.09043.47964.66414.66411.78901.78903.74574.66915.45724.66915.4572
H83.10812.15591.09632.82164.30693.99121.78901.75962.68064.72064.96104.23194.4875
H93.10812.15591.09632.82163.99124.30691.78901.75962.68064.23194.48754.72064.9610
H103.29422.20352.68031.08432.23952.23953.74572.68062.68063.09912.51693.09912.5169
H112.62212.69194.07312.21541.08392.20824.66914.72064.23193.09911.83622.48633.1134
H123.95283.46984.57542.23571.08392.22705.45724.96104.48752.51691.83623.11342.5425
H132.62212.69194.07312.21542.20821.08394.66914.23194.72063.09912.48633.11341.8362
H143.95283.46984.57542.23572.22701.08395.45724.48754.96102.51693.11342.54251.8362

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 122.233 O1 C2 C4 121.701
C2 C3 H7 109.907 C2 C3 H8 110.246
C2 C3 H9 110.246 C2 C4 C5 117.456
C2 C4 C6 117.456 C2 C4 H10 116.289
C3 C2 C4 116.066 C4 C5 C6 60.646
C4 C5 H11 115.787 C4 C5 H12 117.142
C4 C6 C5 60.646 C4 C6 H13 115.787
C4 C6 H14 117.142 C5 C4 C6 58.709
C5 C4 H10 117.320 C5 C6 H13 117.676
C5 C6 H14 118.975 C6 C4 H10 117.320
C6 C5 H11 117.676 C6 C5 H12 118.975
H7 C3 H8 109.769 H7 C3 H9 109.769
H8 C3 H9 106.856 H11 C5 H12 115.480
H13 C6 H14 115.480
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.328      
2 C 0.389      
3 C -0.485      
4 C -0.101      
5 C -0.246      
6 C -0.246      
7 H 0.140      
8 H 0.139      
9 H 0.139      
10 H 0.085      
11 H 0.139      
12 H 0.117      
13 H 0.139      
14 H 0.117      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.675 0.017 0.000 2.675
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 168.282
(<r2>)1/2 12.972