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All results from a given calculation for C5H10O (Pentanal)

using model chemistry: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-271.423632
Energy at 298.15K-271.434260
Nuclear repulsion energy229.285534
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/cc-pVDZ
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' 3052 3034 29.61      
2 A' 2972 2955 34.88      
3 A' 2965 2948 20.06      
4 A' 2946 2929 28.68      
5 A' 2931 2914 20.33      
6 A' 2752 2736 192.75      
7 A' 1766 1755 141.98      
8 A' 1433 1425 5.73      
9 A' 1418 1409 0.33      
10 A' 1409 1401 1.19      
11 A' 1377 1369 8.95      
12 A' 1353 1346 8.84      
13 A' 1349 1341 1.03      
14 A' 1340 1332 11.08      
15 A' 1306 1298 22.70      
16 A' 1220 1213 2.11      
17 A' 1104 1098 9.05      
18 A' 1062 1056 0.51      
19 A' 1025 1019 1.43      
20 A' 902 897 2.72      
21 A' 874 869 14.94      
22 A' 675 671 10.74      
23 A' 386 383 1.77      
24 A' 281 280 3.87      
25 A' 132 131 4.44      
26 A" 3043 3025 42.91      
27 A" 3015 2997 28.04      
28 A" 2978 2961 7.21      
29 A" 2959 2941 7.66      
30 A" 1419 1410 6.63      
31 A" 1273 1265 0.23      
32 A" 1252 1245 0.01      
33 A" 1179 1173 0.00      
34 A" 1103 1097 0.15      
35 A" 938 933 1.10      
36 A" 823 818 0.10      
37 A" 725 721 3.09      
38 A" 642 638 3.34      
39 A" 240 239 0.00      
40 A" 195 194 0.32      
41 A" 112 111 0.84      
42 A" 61 60 1.24      

Unscaled Zero Point Vibrational Energy (zpe) 29992.2 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 29818.2 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/cc-pVDZ
ABC
0.34135 0.04825 0.04366

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.804 -2.080 0.000
C2 -0.371 -1.130 0.000
C3 0.000 0.352 0.000
C4 -1.216 1.285 0.000
C5 -0.833 2.767 0.000
O6 1.975 -1.738 0.000
H7 0.518 -3.178 0.000
H8 -1.007 -1.399 0.878
H9 -1.007 -1.399 -0.878
H10 0.642 0.563 -0.883
H11 0.642 0.563 0.883
H12 -1.851 1.062 0.887
H13 -1.851 1.062 -0.887
H14 -1.728 3.421 0.000
H15 -0.228 3.026 -0.894
H16 -0.228 3.026 0.894

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.51172.56143.92485.11641.21951.13472.12482.12482.79152.79154.20844.20846.05675.28595.2859
C21.51171.52722.55803.92402.42352.23291.11661.11662.16142.16142.78932.78934.74934.25354.2535
C32.56141.52721.53272.55512.87503.56752.20172.20171.11181.11182.17202.17203.52292.82922.8292
C43.92482.55801.53271.53074.39504.78772.83112.83112.17992.17991.11361.11362.19732.19272.1927
C55.11643.92402.55511.53075.30846.09674.26064.26062.79532.79532.17472.17471.10871.11031.1103
O61.21952.42352.87504.39505.30842.04873.12633.12632.80162.80164.82304.82306.35075.32425.3242
H71.13472.23293.56754.78776.09672.04872.50232.50233.84593.84594.93724.93726.97136.31266.3126
H82.12481.11662.20172.83114.26063.12632.50231.75633.10912.56242.60133.14374.95224.82964.4928
H92.12481.11662.20172.83114.26063.12632.50231.75632.56243.10913.14372.60134.95224.49284.8296
H102.79152.16141.11182.17992.79532.80163.84593.10912.56241.76523.09782.54263.81692.61233.1590
H112.79152.16141.11182.17992.79532.80163.84592.56243.10911.76522.54263.09783.81693.15902.6123
H124.20842.78932.17201.11362.17474.82304.93722.60133.14373.09782.54261.77422.52383.10882.5482
H134.20842.78932.17201.11362.17474.82304.93723.14372.60132.54263.09781.77422.52382.54823.1088
H146.05674.74933.52292.19731.10876.35076.97134.95224.95223.81693.81692.52382.52381.79071.7907
H155.28594.25352.82922.19271.11035.32426.31264.82964.49282.61233.15903.10882.54821.79071.7875
H165.28594.25352.82922.19271.11035.32426.31264.49284.82963.15902.61232.54823.10881.79071.7875

picture of Pentanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 114.888 C1 C2 H8 106.920
C1 C2 H9 106.920 C2 C1 O6 124.737
C2 C1 H7 114.330 C2 C3 C4 113.433
C2 C3 H10 108.960 C2 C3 H11 108.960
C3 C2 H8 111.825 C3 C2 H9 111.825
C3 C4 C5 113.040 C3 C4 H12 109.308
C3 C4 H13 109.308 C4 C3 H10 110.023
C4 C3 H11 110.023 C4 C5 H14 111.720
C4 C5 H15 111.247 C4 C5 H16 111.247
C5 C4 H12 109.647 C5 C4 H13 109.647
O6 C1 H7 120.933 H8 C2 H9 103.701
H10 C3 H11 105.098 H12 C4 H13 105.621
H14 C5 H15 107.602 H14 C5 H16 107.602
H15 C5 H16 107.204
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.126      
2 C -0.082      
3 C -0.034      
4 C -0.075      
5 C -0.046      
6 O -0.167      
7 H -0.013      
8 H 0.048      
9 H 0.048      
10 H 0.031      
11 H 0.031      
12 H 0.020      
13 H 0.020      
14 H 0.027      
15 H 0.034      
16 H 0.034      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.345 0.059 0.000 2.345
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.960 3.741 0.000
y 3.741 -37.564 0.000
z 0.000 0.000 -37.400
Traceless
 xyz
x -6.478 3.741 0.000
y 3.741 3.115 0.000
z 0.000 0.000 3.362
Polar
3z2-r26.725
x2-y2-6.396
xy3.741
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.262 -0.523 0.000
y -0.523 10.734 0.000
z 0.000 0.000 7.183


<r2> (average value of r2) Å2
<r2> 254.325
(<r2>)1/2 15.948