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All results from a given calculation for C5H10O (Pentanal)

using model chemistry: B1B95/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 B1B95/STO-3G
 hartrees
Energy at 0K-268.256296
Energy at 298.15K-268.266625
Nuclear repulsion energy227.591312
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 B1B95/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' 3510 3099 1.45      
2 A' 3375 2980 4.28      
3 A' 3363 2969 1.77      
4 A' 3343 2952 3.42      
5 A' 3337 2947 2.27      
6 A' 3188 2815 48.31      
7 A' 1888 1667 36.00      
8 A' 1697 1498 3.64      
9 A' 1680 1484 0.89      
10 A' 1665 1471 1.96      
11 A' 1645 1453 5.52      
12 A' 1578 1393 0.67      
13 A' 1549 1368 0.15      
14 A' 1492 1317 2.91      
15 A' 1469 1297 30.64      
16 A' 1376 1215 0.24      
17 A' 1225 1082 9.64      
18 A' 1166 1030 0.46      
19 A' 1137 1004 1.22      
20 A' 997 880 0.58      
21 A' 952 840 8.99      
22 A' 689 609 5.91      
23 A' 405 357 0.67      
24 A' 282 249 1.04      
25 A' 129 114 1.69      
26 A" 3511 3100 2.62      
27 A" 3484 3077 2.90      
28 A" 3467 3061 0.45      
29 A" 3443 3041 0.07      
30 A" 1684 1487 4.02      
31 A" 1432 1265 0.01      
32 A" 1409 1244 0.00      
33 A" 1341 1184 0.07      
34 A" 1213 1071 0.09      
35 A" 1031 910 0.93      
36 A" 897 792 0.55      
37 A" 796 703 3.38      
38 A" 730 644 7.83      
39 A" 226 199 0.00      
40 A" 154 136 0.34      
41 A" 102 90 0.64      
42 A" 55 48 0.82      

Unscaled Zero Point Vibrational Energy (zpe) 34054.9 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 30070.5 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 B1B95/STO-3G
ABC
0.32954 0.04773 0.04304

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.808 -2.103 0.000
C2 -0.410 -1.139 0.000
C3 0.000 0.351 0.000
C4 -1.227 1.297 0.000
C5 -0.816 2.786 0.000
O6 2.001 -1.748 0.000
H7 0.506 -3.188 0.000
H8 -1.028 -1.371 0.885
H9 -1.028 -1.371 -0.885
H10 0.623 0.554 -0.885
H11 0.623 0.554 0.885
H12 -1.846 1.087 0.886
H13 -1.846 1.087 -0.886
H14 -1.704 3.433 0.000
H15 -0.217 3.023 -0.889
H16 -0.217 3.023 0.889

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.55352.58383.96245.15171.24531.12582.16502.16502.80702.80704.24374.24376.07895.30295.3029
C21.55351.54512.56893.94542.48702.24491.10351.10352.17152.17152.79342.79344.75084.26004.2600
C32.58381.54511.54902.56792.90023.57512.19162.19161.10091.10092.17632.17633.52122.82442.8244
C43.96242.56891.54901.54434.43754.80812.81752.81752.18062.18061.10131.10132.18832.18832.1883
C55.15173.94542.56791.54435.33806.11844.25484.25482.79892.79892.17492.17491.09811.09801.0980
O61.24532.48702.90024.43755.33802.07563.17783.17782.82552.82554.86094.86096.36915.33635.3363
H71.12582.24493.57514.80816.11842.07562.53722.53723.84723.84724.95974.95976.97976.31596.3159
H82.16501.10352.19162.81754.25483.17782.53721.76903.09192.53562.59093.13814.93074.80704.4678
H92.16501.10352.19162.81754.25483.17782.53721.76902.53563.09193.13812.59094.93074.46784.8070
H102.80702.17151.10092.18062.79892.82553.84723.09192.53561.76963.08492.52593.80532.60793.1540
H112.80702.17151.10092.18062.79892.82553.84722.53563.09191.76962.52593.08493.80533.15402.6079
H124.24372.79342.17631.10132.17494.86094.95972.59093.13813.08492.52591.77222.51103.09052.5298
H134.24372.79342.17631.10132.17494.86094.95973.13812.59092.52593.08491.77222.51102.52983.0905
H146.07894.75083.52122.18831.09816.36916.97974.93074.93073.80533.80532.51102.51101.77981.7798
H155.30294.26002.82442.18831.09805.33636.31594.80704.46782.60793.15403.09052.52981.77981.7783
H165.30294.26002.82442.18831.09805.33636.31594.46784.80703.15402.60792.52983.09051.77981.7783

picture of Pentanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 112.995 C1 C2 H8 107.943
C1 C2 H9 107.943 C2 C1 O6 125.040
C2 C1 H7 112.857 C2 C3 C4 112.243
C2 C3 H10 109.148 C2 C3 H11 109.148
C3 C2 H8 110.568 C3 C2 H9 110.568
C3 C4 C5 112.225 C3 C4 H12 109.229
C3 C4 H13 109.229 C4 C3 H10 109.591
C4 C3 H11 109.591 C4 C5 H14 110.683
C4 C5 H15 110.688 C4 C5 H16 110.688
C5 C4 H12 109.445 C5 C4 H13 109.445
O6 C1 H7 122.102 H8 C2 H9 106.565
H10 C3 H11 106.977 H12 C4 H13 107.135
H14 C5 H15 108.273 H14 C5 H16 108.273
H15 C5 H16 108.142
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.087      
2 C -0.160      
3 C -0.136      
4 C -0.135      
5 C -0.227      
6 O -0.173      
7 H 0.058      
8 H 0.082      
9 H 0.082      
10 H 0.077      
11 H 0.077      
12 H 0.070      
13 H 0.070      
14 H 0.076      
15 H 0.075      
16 H 0.075      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.619 -0.115 0.000 1.623
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.389 2.556 0.000
y 2.556 -34.498 0.000
z 0.000 0.000 -34.512
Traceless
 xyz
x -4.884 2.556 0.000
y 2.556 2.452 0.000
z 0.000 0.000 2.432
Polar
3z2-r24.864
x2-y2-4.891
xy2.556
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.728 -0.227 0.000
y -0.227 4.808 0.000
z 0.000 0.000 3.381


<r2> (average value of r2) Å2
<r2> 254.919
(<r2>)1/2 15.966