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All results from a given calculation for C5H10O (Pentanal)

using model chemistry: CID/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at CID/6-31G*
 hartrees
Energy at 0K-270.735798
Energy at 298.15K-270.746822
Nuclear repulsion energy231.987453
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 CID/6-31G*
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' 3243 2996 37.77      
2 A' 3180 2938 26.38      
3 A' 3165 2923 17.47      
4 A' 3153 2912 41.41      
5 A' 3145 2905 14.72      
6 A' 3080 2845 122.86      
7 A' 1948 1800 146.34      
8 A' 1612 1489 6.76      
9 A' 1597 1475 0.51      
10 A' 1591 1470 1.50      
11 A' 1563 1444 11.71      
12 A' 1525 1408 4.20      
13 A' 1520 1404 2.67      
14 A' 1507 1392 12.82      
15 A' 1466 1354 12.18      
16 A' 1364 1259 3.53      
17 A' 1207 1115 10.94      
18 A' 1140 1053 1.04      
19 A' 1107 1022 1.68      
20 A' 977 902 1.40      
21 A' 958 885 7.62      
22 A' 727 671 17.74      
23 A' 417 386 1.97      
24 A' 312 288 5.23      
25 A' 148 137 5.54      
26 A" 3242 2994 65.66      
27 A" 3226 2979 17.66      
28 A" 3185 2942 9.13      
29 A" 3177 2935 9.78      
30 A" 1599 1477 6.73      
31 A" 1409 1302 0.17      
32 A" 1393 1287 0.14      
33 A" 1320 1219 0.03      
34 A" 1243 1148 0.01      
35 A" 1040 960 1.17      
36 A" 912 843 0.03      
37 A" 788 728 1.41      
38 A" 717 662 2.65      
39 A" 261 241 0.00      
40 A" 176 163 1.89      
41 A" 118 109 1.18      
42 A" 79 73 2.87      

Unscaled Zero Point Vibrational Energy (zpe) 32766.7 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 30266.6 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 CID/6-31G*
ABC
0.34766 0.04939 0.04465

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.835 -2.047 0.000
C2 -0.357 -1.132 0.000
C3 0.000 0.345 0.000
C4 -1.229 1.246 0.000
C5 -0.869 2.726 0.000
O6 1.979 -1.676 0.000
H7 0.603 -3.124 0.000
H8 -0.969 -1.391 0.869
H9 -0.969 -1.391 -0.869
H10 0.619 0.563 -0.870
H11 0.619 0.563 0.870
H12 -1.845 1.021 0.873
H13 -1.845 1.021 -0.873
H14 -1.761 3.350 0.000
H15 -0.281 2.984 -0.879
H16 -0.281 2.984 0.879

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.50302.53333.88605.06781.20211.10192.10702.10702.75912.75914.16564.16565.98875.22785.2278
C21.50301.51972.53263.89172.39892.21131.09371.09372.14092.14092.75832.75834.69684.21004.2100
C32.53331.51971.52372.53462.82883.52082.17012.17011.08971.08972.14972.14973.48312.79622.7962
C43.88602.53261.52371.52314.33944.73812.78892.78892.15382.15381.09171.09172.17052.16662.1666
C55.06783.89172.53461.52315.24346.03214.20934.20932.76602.76602.14962.14961.08851.08921.0892
O61.20212.39892.82884.33945.24341.99693.08653.08652.76042.76044.75984.75986.26535.25405.2540
H71.10192.21133.52084.73816.03211.99692.49542.49543.78803.78804.89184.89186.89206.23426.2342
H82.10701.09372.17012.78894.20933.08652.49541.73753.06032.51862.56623.10154.88524.76224.4297
H92.10701.09372.17012.78894.20933.08652.49541.73752.51863.06033.10152.56624.88524.42974.7622
H102.75912.14091.08972.15382.76602.76043.78803.06032.51861.73943.05252.50613.76712.58343.1198
H112.75912.14091.08972.15382.76602.76043.78802.51863.06031.73942.50613.05253.76713.11982.5834
H124.16562.75832.14971.09172.14964.75984.89182.56623.10153.05252.50611.74612.48903.06132.5102
H134.16562.75832.14971.09172.14964.75984.89183.10152.56622.50613.05251.74612.48902.51023.0613
H145.98874.69683.48312.17051.08856.26536.89204.88524.88523.76713.76712.48902.48901.76001.7600
H155.22784.21002.79622.16661.08925.25406.23424.76224.42972.58343.11983.06132.51021.76001.7587
H165.22784.21002.79622.16661.08925.25406.23424.42974.76223.11982.58342.51023.06131.76001.7587

picture of Pentanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.878 C1 C2 H8 107.423
C1 C2 H9 107.423 C2 C1 O6 124.584
C2 C1 H7 115.321 C2 C3 C4 112.640
C2 C3 H10 109.154 C2 C3 H11 109.154
C3 C2 H8 111.232 C3 C2 H9 111.232
C3 C4 C5 112.589 C3 C4 H12 109.443
C3 C4 H13 109.443 C4 C3 H10 109.885
C4 C3 H11 109.885 C4 C5 H14 111.337
C4 C5 H15 110.989 C4 C5 H16 110.989
C5 C4 H12 109.483 C5 C4 H13 109.483
O6 C1 H7 120.095 H8 C2 H9 105.180
H10 C3 H11 105.894 H12 C4 H13 106.197
H14 C5 H15 107.843 H14 C5 H16 107.843
H15 C5 H16 107.681
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability