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All results from a given calculation for C5H10O (Pentanal)

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-270.929938
Energy at 298.15K-270.940810
Nuclear repulsion energy230.224212
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/cc-pVDZ
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' 3179 3028 27.72      
2 A' 3089 2942 26.52      
3 A' 3079 2933 20.04      
4 A' 3069 2923 28.88      
5 A' 3060 2914 16.86      
6 A' 2941 2801 163.71      
7 A' 1787 1702 95.07      
8 A' 1505 1434 5.41      
9 A' 1490 1419 0.85      
10 A' 1480 1409 1.24      
11 A' 1451 1382 10.16      
12 A' 1419 1351 8.82      
13 A' 1415 1348 4.81      
14 A' 1412 1345 5.23      
15 A' 1366 1301 14.67      
16 A' 1270 1210 1.77      
17 A' 1151 1096 8.14      
18 A' 1108 1055 0.59      
19 A' 1067 1017 1.28      
20 A' 938 894 3.29      
21 A' 913 870 9.57      
22 A' 695 662 12.96      
23 A' 399 380 1.53      
24 A' 296 282 4.18      
25 A' 139 132 4.19      
26 A" 3175 3025 38.87      
27 A" 3147 2998 29.33      
28 A" 3117 2969 4.52      
29 A" 3106 2958 7.92      
30 A" 1497 1426 6.70      
31 A" 1328 1265 0.22      
32 A" 1311 1249 0.06      
33 A" 1237 1179 0.03      
34 A" 1157 1102 0.21      
35 A" 976 930 0.62      
36 A" 858 817 0.08      
37 A" 752 716 1.58      
38 A" 678 646 2.40      
39 A" 262 249 0.00      
40 A" 189 180 0.93      
41 A" 116 111 0.80      
42 A" 77 73 1.58      

Unscaled Zero Point Vibrational Energy (zpe) 31349.9 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 29860.8 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/cc-pVDZ
ABC
0.33839 0.04902 0.04423

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.796 -2.074 0.000
C2 -0.388 -1.133 0.000
C3 0.000 0.343 0.000
C4 -1.212 1.278 0.000
C5 -0.810 2.754 0.000
O6 1.961 -1.713 0.000
H7 0.533 -3.164 0.000
H8 -1.013 -1.387 0.880
H9 -1.013 -1.387 -0.880
H10 0.634 0.550 -0.881
H11 0.634 0.550 0.881
H12 -1.840 1.062 0.885
H13 -1.840 1.062 -0.885
H14 -1.693 3.414 0.000
H15 -0.206 2.996 -0.891
H16 -0.206 2.996 0.891

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.51312.54503.90705.08841.21951.12142.12572.12572.77232.77234.19184.19186.02645.24445.2444
C21.51311.52592.54693.90952.41992.23081.10851.10852.15672.15672.77652.77654.73034.22764.2276
C32.54501.52591.53012.54352.84133.54762.18912.18911.10521.10522.16472.16473.50682.80612.8061
C43.90702.54691.53011.53024.35994.77212.81292.81292.17122.17121.10651.10652.19022.18162.1816
C55.08843.90952.54351.53025.25686.06894.23824.23822.77912.77912.16922.16921.10241.10351.1035
O61.21952.41992.84134.35995.25682.03603.11823.11822.76682.76684.78894.78896.29605.25945.2594
H71.12142.23083.54764.77216.06892.03602.51452.51453.81813.81814.92754.92756.94496.26806.2680
H82.12571.10852.18912.81294.23823.11822.51451.75983.09242.54192.58533.13034.92814.79554.4567
H92.12571.10852.18912.81294.23823.11822.51451.75982.54193.09243.13032.58534.92814.45674.7955
H102.77232.15671.10522.17122.77912.76683.81813.09242.54191.76243.08292.52683.79472.58683.1354
H112.77232.15671.10522.17122.77912.76683.81812.54193.09241.76242.52683.08293.79473.13542.5868
H124.19182.77652.16471.10652.16924.78894.92752.58533.13033.08292.52681.77022.51703.09262.5319
H134.19182.77652.16471.10652.16924.78894.92753.13032.58532.52683.08291.77022.51702.53193.0926
H146.02644.73033.50682.19021.10246.29606.94494.92814.92813.79473.79472.51702.51701.78371.7837
H155.24444.22762.80612.18161.10355.25946.26804.79554.45672.58683.13543.09262.53191.78371.7814
H165.24444.22762.80612.18161.10355.25946.26804.45674.79553.13542.58682.53193.09261.78371.7814

picture of Pentanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.738 C1 C2 H8 107.353
C1 C2 H9 107.353 C2 C1 O6 124.294
C2 C1 H7 114.907 C2 C3 C4 112.900
C2 C3 H10 109.062 C2 C3 H11 109.062
C3 C2 H8 111.416 C3 C2 H9 111.416
C3 C4 C5 112.431 C3 C4 H12 109.326
C3 C4 H13 109.326 C4 C3 H10 109.904
C4 C3 H11 109.904 C4 C5 H14 111.570
C4 C5 H15 110.819 C4 C5 H16 110.819
C5 C4 H12 109.662 C5 C4 H13 109.662
O6 C1 H7 120.799 H8 C2 H9 105.082
H10 C3 H11 105.753 H12 C4 H13 106.242
H14 C5 H15 107.919 H14 C5 H16 107.919
H15 C5 H16 107.639
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability