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All results from a given calculation for C5H10O (Pentanal)

using model chemistry: CCD/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 CCD/6-31G
 hartrees
Energy at 0K-270.533229
Energy at 298.15K-270.544070
Nuclear repulsion energy228.000253
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 CCD/6-31G
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' 3090 2965 40.98      
2 A' 3021 2899 32.72      
3 A' 3013 2891 18.18      
4 A' 2997 2875 58.66      
5 A' 2994 2873 17.94      
6 A' 2969 2849 79.88      
7 A' 1728 1658 57.85      
8 A' 1566 1502 8.21      
9 A' 1552 1489 0.70      
10 A' 1547 1485 1.22      
11 A' 1528 1466 12.15      
12 A' 1474 1414 3.05      
13 A' 1457 1398 5.21      
14 A' 1438 1380 0.91      
15 A' 1410 1353 11.29      
16 A' 1329 1275 8.16      
17 A' 1159 1112 11.97      
18 A' 1097 1052 1.31      
19 A' 1058 1016 1.85      
20 A' 936 898 0.87      
21 A' 921 883 7.61      
22 A' 693 665 14.26      
23 A' 404 388 2.09      
24 A' 302 289 4.60      
25 A' 145 139 5.32      
26 A" 3087 2962 66.25      
27 A" 3065 2941 30.23      
28 A" 3026 2903 5.74      
29 A" 3020 2898 11.24      
30 A" 1553 1490 6.47      
31 A" 1357 1302 0.17      
32 A" 1345 1290 0.05      
33 A" 1285 1233 0.12      
34 A" 1197 1148 0.51      
35 A" 1006 965 0.50      
36 A" 888 852 0.29      
37 A" 772 740 0.61      
38 A" 711 682 4.14      
39 A" 242 232 0.00      
40 A" 160 154 1.63      
41 A" 108 103 1.33      
42 A" 74 71 2.67      

Unscaled Zero Point Vibrational Energy (zpe) 31359.7 cm-1
Scaled (by 0.9595) Zero Point Vibrational Energy (zpe) 30089.6 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 CCD/6-31G
ABC
0.33326 0.04789 0.04323

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.837 -2.084 0.000
C2 -0.367 -1.154 0.000
C3 0.000 0.347 0.000
C4 -1.248 1.266 0.000
C5 -0.882 2.770 0.000
O6 2.021 -1.696 0.000
H7 0.614 -3.171 0.000
H8 -0.990 -1.400 0.883
H9 -0.990 -1.400 -0.883
H10 0.625 0.571 -0.883
H11 0.625 0.571 0.883
H12 -1.870 1.036 0.886
H13 -1.870 1.036 -0.886
H14 -1.786 3.401 0.000
H15 -0.285 3.027 -0.892
H16 -0.285 3.027 0.892

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.52132.57163.94595.15001.24681.10872.14092.14092.80602.80604.22494.22496.08025.30865.3086
C21.52131.54562.57533.95812.44902.24261.10831.10832.17692.17692.80032.80034.77104.27604.2760
C32.57161.54561.54962.57862.87413.57112.19412.19411.10471.10472.18092.18093.53772.83872.8387
C43.94592.57531.54961.54864.41154.81142.82052.82052.18462.18461.10661.10662.20192.19662.1966
C55.15003.95812.57861.54865.32706.12654.26474.26472.80892.80892.18372.18371.10261.10351.1035
O61.24682.44902.87414.41155.32702.03823.15183.15182.80452.80454.83654.83656.36205.33135.3313
H71.10872.24263.57114.81146.12652.03822.54682.54683.84403.84404.96534.96536.99626.32586.3258
H82.14091.10832.19412.82054.26473.15182.54681.76613.10042.54842.59083.13734.94644.82184.4831
H92.14091.10832.19412.82054.26473.15182.54681.76612.54843.10043.13732.59084.94644.48314.8218
H102.80602.17691.10472.18462.80892.80453.84403.10042.54841.76563.09392.53823.82172.61973.1645
H112.80602.17691.10472.18462.80892.80453.84402.54843.10041.76562.53823.09393.82173.16452.6197
H124.22492.80032.18091.10662.18374.83654.96532.59083.13733.09392.53821.77262.52653.10422.5441
H134.22492.80032.18091.10662.18374.83654.96533.13732.59082.53823.09391.77262.52652.54413.1042
H146.08024.77103.53772.20191.10266.36206.99624.94644.94643.82173.82172.52652.52651.78571.7857
H155.30864.27602.83872.19661.10355.33136.32584.82184.48312.61973.16453.10422.54411.78571.7845
H165.30864.27602.83872.19661.10355.33136.32584.48314.82183.16452.61972.54413.10421.78571.7845

picture of Pentanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.967 C1 C2 H8 107.981
C1 C2 H9 107.981 C2 C1 O6 124.142
C2 C1 H7 116.132 C2 C3 C4 112.615
C2 C3 H10 109.320 C2 C3 H11 109.320
C3 C2 H8 110.447 C3 C2 H9 110.447
C3 C4 C5 112.665 C3 C4 H12 109.241
C3 C4 H13 109.241 C4 C3 H10 109.641
C4 C3 H11 109.641 C4 C5 H14 111.190
C4 C5 H15 110.716 C4 C5 H16 110.716
C5 C4 H12 109.530 C5 C4 H13 109.530
O6 C1 H7 119.726 H8 C2 H9 105.639
H10 C3 H11 106.094 H12 C4 H13 106.441
H14 C5 H15 108.089 H14 C5 H16 108.089
H15 C5 H16 107.920
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability