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All results from a given calculation for C5H10O (Pentanal)

using model chemistry: MP2/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 MP2/STO-3G
 hartrees
Energy at 0K-267.014262
Energy at 298.15K-267.024720
Nuclear repulsion energy225.724399
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 MP2/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' 3553 3098 3.42      
2 A' 3406 2970 8.34      
3 A' 3401 2965 1.49      
4 A' 3390 2955 2.61      
5 A' 3373 2941 3.57      
6 A' 3281 2861 50.77      
7 A' 1769 1542 25.74      
8 A' 1746 1522 0.28      
9 A' 1730 1508 0.33      
10 A' 1715 1495 2.37      
11 A' 1703 1485 2.00      
12 A' 1626 1418 0.53      
13 A' 1598 1394 0.27      
14 A' 1528 1333 1.15      
15 A' 1495 1303 37.68      
16 A' 1415 1234 1.52      
17 A' 1251 1091 5.25      
18 A' 1187 1035 0.83      
19 A' 1156 1008 2.47      
20 A' 1017 886 0.26      
21 A' 976 851 5.47      
22 A' 693 604 6.54      
23 A' 415 362 0.55      
24 A' 294 256 0.96      
25 A' 136 118 1.27      
26 A" 3554 3099 4.86      
27 A" 3522 3071 9.07      
28 A" 3510 3060 0.12      
29 A" 3497 3049 1.13      
30 A" 1737 1514 1.43      
31 A" 1473 1285 0.01      
32 A" 1453 1267 0.00      
33 A" 1383 1206 0.01      
34 A" 1247 1088 0.03      
35 A" 1056 921 0.58      
36 A" 913 796 0.12      
37 A" 811 707 1.59      
38 A" 745 650 2.94      
39 A" 241 210 0.00      
40 A" 149 130 0.30      
41 A" 107 93 0.47      
42 A" 58 51 0.80      

Unscaled Zero Point Vibrational Energy (zpe) 34654.4 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 30215.2 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 MP2/STO-3G
ABC
0.32197 0.04705 0.04237

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.807 -2.125 0.000
C2 -0.422 -1.153 0.000
C3 0.000 0.350 0.000
C4 -1.234 1.310 0.000
C5 -0.812 2.811 0.000
O6 2.014 -1.757 0.000
H7 0.520 -3.213 0.000
H8 -1.043 -1.378 0.890
H9 -1.043 -1.378 -0.890
H10 0.626 0.553 -0.890
H11 0.626 0.553 0.890
H12 -1.858 1.104 0.891
H13 -1.858 1.104 -0.891
H14 -1.700 3.466 0.000
H15 -0.209 3.047 -0.894
H16 -0.209 3.047 0.894

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.56742.60353.99615.19511.26161.12532.18452.18452.82762.82764.28074.28076.12755.34605.3460
C21.56741.56142.59363.98342.51012.26511.10791.10792.19112.19112.81952.81954.79254.29924.2992
C32.60351.56141.56362.59162.91493.60082.20592.20591.10661.10662.19412.19413.54952.84862.8486
C43.99612.59361.56361.55944.46764.85132.83832.83832.19682.19681.10681.10682.20552.20582.2058
C55.19513.98342.59161.55945.37176.16974.28924.28922.82132.82132.19142.19141.10351.10341.1034
O61.26162.51012.91494.46765.37172.08653.20613.20612.83782.83784.89624.89626.40905.36825.3682
H71.12532.26513.60084.85136.16972.08652.56882.56883.87093.87095.00845.00847.03816.36516.3651
H82.18451.10792.20592.83834.28923.20612.56881.77963.11142.55232.61283.16184.96894.84334.5029
H92.18451.10792.20592.83834.28923.20612.56881.77962.55233.11143.16182.61284.96894.50294.8433
H102.82762.19111.10662.19682.82132.83783.87093.11142.55231.77923.10562.54463.83272.63013.1776
H112.82762.19111.10662.19682.82132.83783.87092.55233.11141.77922.54463.10563.83273.17762.6301
H124.28072.81952.19411.10682.19144.89625.00842.61283.16183.10562.54461.78162.52913.11092.5483
H134.28072.81952.19411.10682.19144.89625.00843.16182.61282.54463.10561.78162.52912.54833.1109
H146.12754.79253.54952.20551.10356.40907.03814.96894.96893.83273.83272.52912.52911.78831.7883
H155.34604.29922.84862.20581.10345.36826.36514.84334.50292.63013.17763.11092.54831.78831.7873
H165.34604.29922.84862.20581.10345.36826.36514.50294.84333.17762.63012.54833.11091.78831.7873

picture of Pentanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 112.634 C1 C2 H8 108.255
C1 C2 H9 108.255 C2 C1 O6 124.713
C2 C1 H7 113.513 C2 C3 C4 112.188
C2 C3 H10 109.233 C2 C3 H11 109.233
C3 C2 H8 110.312 C3 C2 H9 110.312
C3 C4 C5 112.164 C3 C4 H12 109.300
C3 C4 H13 109.300 C4 C3 H10 109.523
C4 C3 H11 109.523 C4 C5 H14 110.669
C4 C5 H15 110.700 C4 C5 H16 110.700
C5 C4 H12 109.383 C5 C4 H13 109.383
O6 C1 H7 121.774 H8 C2 H9 106.873
H10 C3 H11 107.003 H12 C4 H13 107.183
H14 C5 H15 108.256 H14 C5 H16 108.256
H15 C5 H16 108.166
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability