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All results from a given calculation for C5H10O (3-Pentanone)

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-271.443853
Energy at 298.15K 
HF Energy-271.443853
Nuclear repulsion energy237.808132
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 PBEPBE/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 A1 3074 3042 23.50      
2 A1 2994 2963 3.59      
3 A1 2961 2930 24.29      
4 A1 1747 1729 98.03      
5 A1 1447 1432 5.43      
6 A1 1405 1391 13.68      
7 A1 1359 1345 8.00      
8 A1 1296 1283 9.54      
9 A1 1085 1074 1.11      
10 A1 998 988 1.75      
11 A1 760 753 2.97      
12 A1 398 394 0.38      
13 A1 186 184 0.56      
14 A2 3075 3043 0.00      
15 A2 2983 2952 0.00      
16 A2 1440 1426 0.00      
17 A2 1216 1204 0.00      
18 A2 959 949 0.00      
19 A2 681 674 0.00      
20 A2 182 180 0.00      
21 A2 32 31 0.00      
22 B1 3076 3044 32.99      
23 B1 2993 2962 15.94      
24 B1 1441 1426 11.65      
25 B1 1258 1245 0.50      
26 B1 1096 1085 0.20      
27 B1 794 786 10.79      
28 B1 453 448 0.24      
29 B1 152 151 0.26      
30 B1 67 67 0.19      
31 B2 3074 3042 12.49      
32 B2 2993 2962 37.96      
33 B2 2952 2921 12.92      
34 B2 1447 1432 10.70      
35 B2 1391 1377 2.68      
36 B2 1359 1345 2.43      
37 B2 1329 1315 29.71      
38 B2 1105 1093 60.89      
39 B2 971 961 22.78      
40 B2 953 944 15.26      
41 B2 602 596 2.20      
42 B2 294 291 12.41      

Unscaled Zero Point Vibrational Energy (zpe) 30037.2 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 29727.8 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 PBEPBE/6-31G(2df,p)
ABC
0.29426 0.06466 0.05518

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.290
C2 0.000 0.000 0.069
C3 0.000 1.298 -0.737
C4 0.000 -1.298 -0.737
C5 0.000 2.554 0.133
C6 0.000 -2.554 0.133
H7 0.876 1.276 -1.414
H8 -0.876 1.276 -1.414
H9 -0.876 -1.276 -1.414
H10 0.876 -1.276 -1.414
H11 0.000 3.463 -0.488
H12 -0.885 2.576 0.787
H13 0.885 2.576 0.787
H14 0.000 -3.463 -0.488
H15 0.885 -2.576 0.787
H16 -0.885 -2.576 0.787

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.22112.40732.40732.80412.80413.11583.11583.11583.11583.89322.77002.77003.89322.77002.7700
C21.22111.52811.52812.55472.55472.14352.14352.14352.14353.50782.81692.81693.50782.81692.8169
C32.40731.52812.59641.52743.94901.10711.10712.80182.80182.17942.17682.17684.76804.25634.2563
C42.40731.52812.59643.94901.52742.80182.80181.10711.10714.76804.25634.25632.17942.17682.1768
C52.80412.55471.52743.94905.10782.18922.18924.22204.22201.10091.10061.10066.04915.24695.2469
C62.80412.55473.94901.52745.10784.22204.22202.18922.18926.04915.24695.24691.10091.10061.1006
H73.11582.14351.10712.80182.18924.22201.75113.09462.55152.53183.10392.55664.90744.43654.7729
H83.11582.14351.10712.80182.18924.22201.75112.55153.09462.53182.55663.10394.90744.77294.4365
H93.11582.14352.80181.10714.22202.18923.09462.55151.75114.90744.43654.77292.53183.10392.5566
H103.11582.14352.80181.10714.22202.18922.55153.09461.75114.90744.77294.43652.53182.55663.1039
H113.89323.50782.17944.76801.10096.04912.53182.53184.90744.90741.78741.78746.92666.23576.2357
H122.77002.81692.17684.25631.10065.24693.10392.55664.43654.77291.78741.76926.23575.44785.1525
H132.77002.81692.17684.25631.10065.24692.55663.10394.77294.43651.78741.76926.23575.15255.4478
H143.89323.50784.76802.17946.04911.10094.90744.90742.53182.53186.92666.23576.23571.78741.7874
H152.77002.81694.25632.17685.24691.10064.43654.77293.10392.55666.23575.44785.15251.78741.7692
H162.77002.81694.25632.17685.24691.10064.77294.43652.55663.10396.23575.15255.44781.78741.7692

picture of 3-Pentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 121.839 O1 C2 C4 121.839
C2 C3 C5 113.462 C2 C3 H7 107.786
C2 C3 H8 107.786 C2 C4 C6 113.462
C2 C4 H9 107.786 C2 C4 H10 107.786
C3 C2 C4 116.321 C3 C5 H11 110.995
C3 C5 H12 110.805 C3 C5 H13 110.805
C4 C6 H14 110.995 C4 C6 H15 110.805
C4 C6 H16 110.805 C5 C3 H7 111.401
C5 C3 H8 111.401 C6 C4 H9 111.401
C6 C4 H10 111.401 H7 C3 H8 104.526
H9 C4 H10 104.526 H11 C5 H12 108.564
H11 C5 H13 108.564 H12 C5 H13 106.980
H14 C6 H15 108.564 H14 C6 H16 108.564
H15 C6 H16 106.980
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.271      
2 C 0.364      
3 C -0.303      
4 C -0.303      
5 C -0.408      
6 C -0.408      
7 H 0.131      
8 H 0.131      
9 H 0.131      
10 H 0.131      
11 H 0.120      
12 H 0.142      
13 H 0.142      
14 H 0.120      
15 H 0.142      
16 H 0.142      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.412 2.412
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.535 0.000 0.000
y 0.000 -36.607 0.000
z 0.000 0.000 -40.250
Traceless
 xyz
x 1.894 0.000 0.000
y 0.000 1.785 0.000
z 0.000 0.000 -3.679
Polar
3z2-r2-7.358
x2-y20.073
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.041 0.000 0.000
y 0.000 10.517 0.000
z 0.000 0.000 8.684


<r2> (average value of r2) Å2
<r2> 216.373
(<r2>)1/2 14.710