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All results from a given calculation for C5H10O (Pentanal)

using model chemistry: MP2=FULL/6-311G*

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=FULL/6-311G*
 hartrees
Energy at 0K-271.066764
Energy at 298.15K-271.077644
Nuclear repulsion energy231.252234
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=FULL/6-311G*
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' 3167 3000 31.69      
2 A' 3091 2927 30.20      
3 A' 3077 2914 22.30      
4 A' 3069 2907 23.57      
5 A' 3056 2895 17.45      
6 A' 2946 2790 157.63      
7 A' 1784 1689 94.38      
8 A' 1548 1466 12.30      
9 A' 1534 1453 1.35      
10 A' 1526 1445 1.01      
11 A' 1493 1414 17.39      
12 A' 1450 1374 6.98      
13 A' 1443 1367 5.22      
14 A' 1433 1357 6.75      
15 A' 1391 1317 12.87      
16 A' 1297 1228 9.91      
17 A' 1161 1100 11.42      
18 A' 1111 1052 0.32      
19 A' 1073 1017 0.77      
20 A' 944 894 0.60      
21 A' 920 871 11.73      
22 A' 704 666 11.95      
23 A' 405 384 1.81      
24 A' 301 285 4.03      
25 A' 142 135 4.67      
26 A" 3166 2998 50.66      
27 A" 3145 2978 23.59      
28 A" 3112 2947 4.65      
29 A" 3097 2933 8.06      
30 A" 1541 1460 10.31      
31 A" 1362 1290 0.18      
32 A" 1344 1273 0.14      
33 A" 1266 1199 0.05      
34 A" 1180 1118 0.40      
35 A" 996 944 0.45      
36 A" 874 828 0.24      
37 A" 754 714 1.55      
38 A" 678 642 4.67      
39 A" 254 240 0.00      
40 A" 178 169 1.34      
41 A" 114 108 0.76      
42 A" 77 73 2.00      

Unscaled Zero Point Vibrational Energy (zpe) 31601.5 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 29929.8 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=FULL/6-311G*
ABC
0.34330 0.04927 0.04450

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.813 -2.059 0.000
C2 -0.374 -1.130 0.000
C3 0.000 0.345 0.000
C4 -1.220 1.260 0.000
C5 -0.839 2.738 0.000
O6 1.971 -1.695 0.000
H7 0.571 -3.144 0.000
H8 -0.992 -1.383 0.872
H9 -0.992 -1.383 -0.872
H10 0.625 0.557 -0.874
H11 0.625 0.557 0.874
H12 -1.839 1.040 0.878
H13 -1.839 1.040 -0.878
H14 -1.722 3.381 0.000
H15 -0.244 2.986 -0.883
H16 -0.244 2.986 0.883

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.50752.53773.89285.07331.21381.11132.11582.11582.76482.76484.17234.17236.00165.22995.2299
C21.50751.52092.53553.89522.41182.22491.09911.09912.14622.14622.76122.76124.70754.21144.2114
C32.53771.52091.52552.53582.83643.53502.17512.17511.09511.09512.15312.15313.49042.79582.7958
C43.89282.53551.52551.52574.34954.75472.79332.79332.15942.15941.09651.09652.17882.17052.1705
C55.07333.89522.53581.52575.24826.04824.21514.21512.76792.76792.15732.15731.09261.09321.0932
O61.21382.41182.83644.34955.24822.01463.10453.10452.76532.76534.77144.77146.27715.25345.2534
H71.11132.22493.53504.75476.04822.01462.51092.51093.80313.80314.90744.90746.91586.24676.2467
H82.11581.09912.17512.79334.21513.10452.51091.74493.07082.52602.56683.10674.89784.76794.4331
H92.11581.09912.17512.79334.21513.10452.51091.74492.52603.07083.10672.56684.89784.43314.7679
H102.76482.14621.09512.15942.76792.76533.80313.07082.52601.74723.06152.51113.77432.57983.1209
H112.76482.14621.09512.15942.76792.76533.80312.52603.07081.74722.51113.06153.77433.12092.5798
H124.17232.76122.15311.09652.15734.77144.90742.56683.10673.06152.51111.75542.50263.07132.5168
H134.17232.76122.15311.09652.15734.77144.90743.10672.56682.51113.06151.75542.50262.51683.0713
H146.00164.70753.49042.17881.09266.27716.91584.89784.89783.77433.77432.50262.50261.76661.7666
H155.22994.21142.79582.17051.09325.25346.24674.76794.43312.57983.12093.07132.51681.76661.7655
H165.22994.21142.79582.17051.09325.25346.24674.43314.76793.12092.57982.51683.07131.76661.7655

picture of Pentanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.852 C1 C2 H8 107.496
C1 C2 H9 107.496 C2 C1 O6 124.468
C2 C1 H7 115.503 C2 C3 C4 112.669
C2 C3 H10 109.168 C2 C3 H11 109.168
C3 C2 H8 111.220 C3 C2 H9 111.220
C3 C4 C5 112.417 C3 C4 H12 109.313
C3 C4 H13 109.313 C4 C3 H10 109.883
C4 C3 H11 109.883 C4 C5 H14 111.566
C4 C5 H15 110.865 C4 C5 H16 110.865
C5 C4 H12 109.632 C5 C4 H13 109.632
O6 C1 H7 120.029 H8 C2 H9 105.085
H10 C3 H11 105.835 H12 C4 H13 106.350
H14 C5 H15 107.843 H14 C5 H16 107.843
H15 C5 H16 107.700
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability