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All results from a given calculation for C5H10O (Pentanal)

using model chemistry: PBEPBE/STO-3G

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/STO-3G
 hartrees
Energy at 0K-268.017204
Energy at 298.15K-268.027374
Nuclear repulsion energy225.594220
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/STO-3G
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' 3416 3121 2.38      
2 A' 3281 2998 6.65      
3 A' 3269 2986 1.77      
4 A' 3248 2968 3.09      
5 A' 3243 2963 4.89      
6 A' 3042 2779 69.31      
7 A' 1803 1648 39.12      
8 A' 1658 1515 3.75      
9 A' 1641 1499 1.08      
10 A' 1625 1484 1.94      
11 A' 1601 1463 7.19      
12 A' 1535 1402 0.58      
13 A' 1495 1366 0.37      
14 A' 1446 1321 3.24      
15 A' 1423 1300 27.49      
16 A' 1335 1219 0.53      
17 A' 1190 1087 10.53      
18 A' 1129 1031 0.50      
19 A' 1101 1006 1.67      
20 A' 969 886 0.82      
21 A' 908 829 12.93      
22 A' 670 612 4.04      
23 A' 397 363 0.80      
24 A' 277 253 0.73      
25 A' 126 115 1.49      
26 A" 3418 3122 4.08      
27 A" 3388 3095 4.57      
28 A" 3369 3078 0.37      
29 A" 3341 3052 0.25      
30 A" 1647 1504 4.15      
31 A" 1398 1277 0.01      
32 A" 1375 1257 0.00      
33 A" 1307 1194 0.11      
34 A" 1174 1072 0.09      
35 A" 1002 915 1.00      
36 A" 872 797 0.58      
37 A" 778 711 4.22      
38 A" 705 644 8.23      
39 A" 221 202 0.00      
40 A" 151 138 0.18      
41 A" 100 92 0.56      
42 A" 45 41 0.63      

Unscaled Zero Point Vibrational Energy (zpe) 33057.7 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 30201.5 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/STO-3G
ABC
0.32431 0.04683 0.04224

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.804 -2.125 0.000
C2 -0.419 -1.142 0.000
C3 0.000 0.357 0.000
C4 -1.231 1.316 0.000
C5 -0.811 2.813 0.000
O6 2.015 -1.781 0.000
H7 0.478 -3.216 0.000
H8 -1.043 -1.374 0.891
H9 -1.043 -1.374 -0.891
H10 0.628 0.558 -0.892
H11 0.628 0.558 0.892
H12 -1.856 1.108 0.893
H13 -1.856 1.108 -0.893
H14 -1.702 3.468 0.000
H15 -0.206 3.049 -0.896
H16 -0.206 3.049 0.896

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.56942.60873.99765.19541.25881.13832.18412.18412.83312.83314.28064.28066.12915.34715.3471
C21.56941.55592.58823.97412.51662.25981.11251.11252.18702.18702.81462.81464.78534.29054.2905
C32.60871.55591.56062.58672.93753.60422.20872.20871.10951.10952.19252.19253.54672.84482.8448
C43.99762.58821.56061.55514.48624.84312.84002.84002.19702.19701.10991.10992.20352.20372.2037
C55.19543.97412.58671.55515.39346.16504.28744.28742.81962.81962.19082.19081.10621.10611.1061
O61.25882.51662.93754.48625.39342.10243.21113.21112.86182.86184.91184.91186.43195.39095.3909
H71.13832.25983.60424.84316.16502.10242.54952.54953.88093.88094.99374.99377.03066.36516.3651
H82.18411.11252.20872.84004.28743.21112.54951.78243.11582.55512.61153.16294.96784.84334.5015
H92.18411.11252.20872.84004.28743.21112.54951.78242.55513.11583.16292.61154.96784.50154.8433
H102.83312.18701.10952.19702.81962.86183.88093.11582.55511.78383.10822.54453.83322.62663.1772
H112.83312.18701.10952.19702.81962.86183.88092.55513.11581.78382.54453.10823.83323.17722.6266
H124.28062.81462.19251.10992.19084.91184.99372.61153.16293.10822.54451.78632.52893.11312.5478
H134.28062.81462.19251.10992.19084.91184.99373.16292.61152.54453.10821.78632.52892.54783.1131
H146.12914.78533.54672.20351.10626.43197.03064.96784.96783.83323.83322.52892.52891.79321.7932
H155.34714.29052.84482.20371.10615.39096.36514.84334.50152.62663.17723.11312.54781.79321.7916
H165.34714.29052.84482.20371.10615.39096.36514.50154.84333.17722.62662.54783.11311.79321.7916

picture of Pentanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.164 C1 C2 H8 107.832
C1 C2 H9 107.832 C2 C1 O6 125.343
C2 C1 H7 112.157 C2 C3 C4 112.293
C2 C3 H10 109.125 C2 C3 H11 109.125
C3 C2 H8 110.631 C3 C2 H9 110.631
C3 C4 C5 112.237 C3 C4 H12 109.204
C3 C4 H13 109.204 C4 C3 H10 109.575
C4 C3 H11 109.575 C4 C5 H14 110.650
C4 C5 H15 110.670 C4 C5 H16 110.670
C5 C4 H12 109.447 C5 C4 H13 109.447
O6 C1 H7 122.500 H8 C2 H9 106.469
H10 C3 H11 107.004 H12 C4 H13 107.169
H14 C5 H15 108.299 H14 C5 H16 108.299
H15 C5 H16 108.161
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.069      
2 C -0.162      
3 C -0.141      
4 C -0.139      
5 C -0.232      
6 O -0.153      
7 H 0.057      
8 H 0.084      
9 H 0.084      
10 H 0.078      
11 H 0.078      
12 H 0.073      
13 H 0.073      
14 H 0.078      
15 H 0.077      
16 H 0.077      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.539 -0.062 0.000 1.540
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.942 2.500 0.000
y 2.500 -34.541 0.000
z 0.000 0.000 -34.450
Traceless
 xyz
x -4.447 2.500 0.000
y 2.500 2.155 0.000
z 0.000 0.000 2.292
Polar
3z2-r24.584
x2-y2-4.401
xy2.500
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.838 -0.296 0.000
y -0.296 4.986 0.000
z 0.000 0.000 3.404


<r2> (average value of r2) Å2
<r2> 259.101
(<r2>)1/2 16.097