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All results from a given calculation for C5H10O (Pentanal)

using model chemistry: QCISD/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 QCISD/cc-pVDZ
 hartrees
Energy at 0K-270.998845
Energy at 298.15K-271.009703
Nuclear repulsion energy229.736179
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 QCISD/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' 3138 3010 35.61      
2 A' 3065 2941 26.56      
3 A' 3053 2929 17.23      
4 A' 3042 2918 56.87      
5 A' 3038 2915 3.87      
6 A' 2930 2811 154.53      
7 A' 1823 1749 121.74      
8 A' 1508 1447 4.74      
9 A' 1494 1433 0.34      
10 A' 1486 1426 1.13      
11 A' 1462 1402 7.53      
12 A' 1433 1375 5.86      
13 A' 1422 1365 3.52      
14 A' 1421 1363 9.82      
15 A' 1378 1322 12.82      
16 A' 1280 1228 1.03      
17 A' 1150 1103 7.38      
18 A' 1101 1057 0.85      
19 A' 1063 1019 2.09      
20 A' 935 897 3.06      
21 A' 911 874 7.90      
22 A' 694 665 15.15      
23 A' 399 383 1.54      
24 A' 296 284 4.36      
25 A' 140 134 4.31      
26 A" 3134 3007 56.67      
27 A" 3113 2987 28.94      
28 A" 3078 2953 1.98      
29 A" 3075 2950 14.56      
30 A" 1497 1436 5.59      
31 A" 1330 1276 0.20      
32 A" 1314 1261 0.09      
33 A" 1242 1191 0.04      
34 A" 1163 1115 0.12      
35 A" 979 939 0.63      
36 A" 860 825 0.03      
37 A" 750 720 1.07      
38 A" 682 654 1.66      
39 A" 256 246 0.00      
40 A" 184 176 1.30      
41 A" 115 110 0.84      
42 A" 76 73 1.82      

Unscaled Zero Point Vibrational Energy (zpe) 31252.9 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 29984.0 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 QCISD/cc-pVDZ
ABC
0.33869 0.04867 0.04396

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.814 -2.075 0.000
C2 -0.380 -1.137 0.000
C3 0.000 0.345 0.000
C4 -1.221 1.274 0.000
C5 -0.832 2.759 0.000
O6 1.973 -1.711 0.000
H7 0.555 -3.168 0.000
H8 -1.003 -1.394 0.882
H9 -1.003 -1.394 -0.882
H10 0.633 0.556 -0.883
H11 0.633 0.556 0.883
H12 -1.850 1.055 0.887
H13 -1.850 1.055 -0.887
H14 -1.724 3.410 0.000
H15 -0.229 3.008 -0.893
H16 -0.229 3.008 0.893

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.51882.55393.91955.10641.21511.12252.13162.13162.78182.78184.20494.20496.04415.26555.2655
C21.51881.53052.55393.92172.42262.23591.11001.11002.16242.16242.78402.78404.74154.24294.2429
C32.55391.53051.53442.55262.85003.55672.19352.19351.10701.10702.17052.17053.51642.81772.8177
C43.91952.55391.53441.53434.37234.78422.81932.81932.17602.17601.10871.10872.19402.18812.1881
C55.10643.92172.55261.53435.27706.08654.24914.24912.78872.78872.17332.17331.10481.10611.1061
O61.21512.42262.85004.37235.27702.03263.12043.12042.77782.77784.80134.80136.31645.28365.2836
H71.12252.23593.55674.78426.08652.03262.52022.52023.82823.82824.93994.93996.96156.28906.2890
H82.13161.11002.19352.81934.24913.12042.52021.76423.09842.54652.59173.13784.93764.80964.4701
H92.13161.11002.19352.81934.24913.12042.52021.76422.54653.09843.13782.59174.93764.47014.8096
H102.78182.16241.10702.17602.78872.77783.82823.09842.54651.76593.08972.53273.80552.59883.1475
H112.78182.16241.10702.17602.78872.77783.82822.54653.09841.76592.53273.08973.80553.14752.5988
H124.20492.78402.17051.10872.17334.80134.93992.59173.13783.08972.53271.77352.51933.09972.5379
H134.20492.78402.17051.10872.17334.80134.93993.13782.59172.53273.08971.77352.51932.53793.0997
H146.04414.74153.51642.19401.10486.31646.96154.93764.93763.80553.80552.51932.51931.78771.7877
H155.26554.24292.81772.18811.10615.28366.28904.80964.47012.59883.14753.09972.53791.78771.7857
H165.26554.24292.81772.18811.10615.28366.28904.47014.80963.14752.59882.53793.09971.78771.7857

picture of Pentanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.756 C1 C2 H8 107.334
C1 C2 H9 107.334 C2 C1 O6 124.407
C2 C1 H7 114.836 C2 C3 C4 112.867
C2 C3 H10 109.085 C2 C3 H11 109.085
C3 C2 H8 111.349 C3 C2 H9 111.349
C3 C4 C5 112.569 C3 C4 H12 109.352
C3 C4 H13 109.352 C4 C3 H10 109.876
C4 C3 H11 109.876 C4 C5 H14 111.434
C4 C5 H15 110.887 C4 C5 H16 110.887
C5 C4 H12 109.575 C5 C4 H13 109.575
O6 C1 H7 120.757 H8 C2 H9 105.250
H10 C3 H11 105.803 H12 C4 H13 106.217
H14 C5 H15 107.914 H14 C5 H16 107.914
H15 C5 H16 107.651
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability