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All results from a given calculation for C5H10O (Pentanal)

using model chemistry: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-270.285733
Energy at 298.15K-270.296548
Nuclear repulsion energy229.851444
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/3-21G
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' 3112 3003 34.67      
2 A' 3065 2957 25.36      
3 A' 3046 2939 18.77      
4 A' 3037 2930 19.83      
5 A' 3023 2917 14.54      
6 A' 2900 2798 158.34      
7 A' 1739 1678 77.90      
8 A' 1572 1517 7.58      
9 A' 1556 1501 3.09      
10 A' 1544 1490 1.18      
11 A' 1505 1452 19.78      
12 A' 1463 1412 4.26      
13 A' 1442 1391 5.97      
14 A' 1403 1354 1.45      
15 A' 1382 1333 10.23      
16 A' 1311 1265 16.34      
17 A' 1146 1106 16.52      
18 A' 1060 1022 2.05      
19 A' 1022 987 1.98      
20 A' 927 895 0.34      
21 A' 887 856 15.14      
22 A' 695 670 9.74      
23 A' 400 386 2.30      
24 A' 299 288 4.90      
25 A' 142 137 5.11      
26 A" 3116 3006 70.83      
27 A" 3101 2992 1.28      
28 A" 3062 2955 3.78      
29 A" 3047 2940 5.42      
30 A" 1566 1511 8.35      
31 A" 1367 1319 0.17      
32 A" 1350 1302 0.00      
33 A" 1273 1228 0.00      
34 A" 1185 1143 0.33      
35 A" 1014 979 1.02      
36 A" 885 854 0.58      
37 A" 766 739 2.10      
38 A" 695 671 6.98      
39 A" 240 231 0.00      
40 A" 194 187 0.65      
41 A" 109 106 1.26      
42 A" 51 49 1.28      

Unscaled Zero Point Vibrational Energy (zpe) 31348.4 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 30248.1 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/3-21G
ABC
0.32974 0.04920 0.04422

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.776 -2.084 0.000
C2 -0.417 -1.149 0.000
C3 0.000 0.330 0.000
C4 -1.207 1.291 0.000
C5 -0.763 2.770 0.000
O6 1.948 -1.710 0.000
H7 0.506 -3.159 0.000
H8 -1.036 -1.386 0.880
H9 -1.036 -1.386 -0.880
H10 0.627 0.523 -0.879
H11 0.627 0.523 0.879
H12 -1.829 1.094 0.884
H13 -1.829 1.094 -0.884
H14 -1.629 3.442 0.000
H15 -0.158 2.989 -0.887
H16 -0.158 2.989 0.887

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.51552.53543.91425.09181.23081.10842.13132.13132.75492.75494.20254.20256.02615.23345.2334
C21.51551.53712.56503.93442.43162.21171.10121.10122.15852.15852.79372.79374.74834.24004.2400
C32.53541.53711.54292.55642.82143.52562.18902.18901.09651.09652.16992.16993.51222.80722.8072
C43.91422.56501.54291.54384.35514.76852.82312.82312.17382.17381.09831.09832.19172.18382.1838
C55.09183.93442.55641.54385.23726.06324.25664.25662.78462.78462.17362.17361.09551.09621.0962
O61.23082.43162.82144.35515.23722.04413.12823.12822.73992.73994.78674.78676.27235.22565.2256
H71.10842.21173.52564.76856.06322.04412.50912.50913.78723.78724.93154.93156.93756.24676.2467
H82.13131.10122.18902.82314.25663.12822.50911.75993.08242.53142.60353.14464.94304.79904.4617
H92.13131.10122.18902.82314.25663.12822.50911.75992.53143.08243.14462.60354.94304.46174.7990
H102.75492.15851.09652.17382.78462.73993.78723.08242.53141.75763.07602.52113.79202.58773.1329
H112.75492.15851.09652.17382.78462.73993.78722.53143.08241.75762.52113.07603.79203.13292.5877
H124.20252.79372.16991.09832.17364.78674.93152.60353.14463.07602.52111.76732.51673.08502.5261
H134.20252.79372.16991.09832.17364.78674.93153.14462.60352.52113.07601.76732.51672.52613.0850
H146.02614.74833.51222.19171.09556.27236.93754.94304.94303.79203.79202.51672.51671.77631.7763
H155.23344.24002.80722.18381.09625.22566.24674.79904.46172.58773.13293.08502.52611.77631.7746
H165.23344.24002.80722.18381.09625.22566.24674.46174.79903.13292.58772.52613.08501.77631.7746

picture of Pentanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 112.312 C1 C2 H8 108.035
C1 C2 H9 108.035 C2 C1 O6 124.273
C2 C1 H7 113.999 C2 C3 C4 112.771
C2 C3 H10 108.936 C2 C3 H11 108.936
C3 C2 H8 111.055 C3 C2 H9 111.055
C3 C4 C5 111.830 C3 C4 H12 109.327
C3 C4 H13 109.327 C4 C3 H10 109.734
C4 C3 H11 109.734 C4 C5 H14 111.143
C4 C5 H15 110.479 C4 C5 H16 110.479
C5 C4 H12 109.553 C5 C4 H13 109.553
O6 C1 H7 121.728 H8 C2 H9 106.085
H10 C3 H11 106.533 H12 C4 H13 107.135
H14 C5 H15 108.281 H14 C5 H16 108.281
H15 C5 H16 108.079
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.265      
2 C -0.495      
3 C -0.347      
4 C -0.382      
5 C -0.550      
6 O -0.413      
7 H 0.156      
8 H 0.216      
9 H 0.216      
10 H 0.202      
11 H 0.202      
12 H 0.184      
13 H 0.184      
14 H 0.186      
15 H 0.189      
16 H 0.189      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.398 -0.161 0.000 2.404
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.214 3.761 0.000
y 3.761 -36.611 0.000
z 0.000 0.000 -37.291
Traceless
 xyz
x -7.263 3.761 0.000
y 3.761 4.142 0.000
z 0.000 0.000 3.121
Polar
3z2-r26.243
x2-y2-7.603
xy3.761
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.930 -0.350 0.000
y -0.350 8.828 0.000
z 0.000 0.000 6.171


<r2> (average value of r2) Å2
<r2> 251.209
(<r2>)1/2 15.850