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All results from a given calculation for C5H10O (Pentanal)

using model chemistry: MP2/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-270.489984
Energy at 298.15K-270.500679
HF Energy-269.928451
Nuclear repulsion energy226.150889
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/LANL2DZ
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' 3119 3004 50.49      
2 A' 3041 2928 36.57      
3 A' 3018 2907 18.49      
4 A' 3014 2903 52.69      
5 A' 3006 2895 57.70      
6 A' 2974 2864 104.09      
7 A' 1590 1531 52.77      
8 A' 1546 1489 10.81      
9 A' 1533 1476 3.72      
10 A' 1527 1471 0.69      
11 A' 1502 1447 22.84      
12 A' 1458 1405 5.84      
13 A' 1433 1380 3.54      
14 A' 1419 1366 2.82      
15 A' 1398 1346 7.78      
16 A' 1315 1267 11.64      
17 A' 1146 1104 14.79      
18 A' 1088 1048 0.40      
19 A' 1046 1008 1.18      
20 A' 922 888 0.24      
21 A' 895 862 8.64      
22 A' 671 646 11.30      
23 A' 393 378 1.94      
24 A' 287 277 4.07      
25 A' 137 132 5.71      
26 A" 3119 3004 94.14      
27 A" 3103 2988 25.09      
28 A" 3067 2953 8.79      
29 A" 3052 2939 13.14      
30 A" 1541 1484 8.93      
31 A" 1342 1293 0.20      
32 A" 1330 1281 0.02      
33 A" 1273 1226 0.10      
34 A" 1183 1139 1.06      
35 A" 995 958 0.47      
36 A" 881 849 0.58      
37 A" 775 746 1.66      
38 A" 699 673 6.62      
39 A" 229 220 0.00      
40 A" 153 147 2.37      
41 A" 104 100 1.22      
42 A" 71 68 3.14      

Unscaled Zero Point Vibrational Energy (zpe) 31196.3 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 30045.1 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/LANL2DZ
ABC
0.32880 0.04704 0.04248

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.856 -2.095 0.000
C2 -0.359 -1.155 0.000
C3 0.000 0.360 0.000
C4 -1.274 1.261 0.000
C5 -0.918 2.781 0.000
O6 2.064 -1.704 0.000
H7 0.625 -3.184 0.000
H8 -0.977 -1.407 0.888
H9 -0.977 -1.407 -0.888
H10 0.619 0.589 -0.889
H11 0.619 0.589 0.889
H12 -1.888 1.024 0.892
H13 -1.888 1.024 -0.892
H14 -1.831 3.405 0.000
H15 -0.322 3.040 -0.895
H16 -0.322 3.040 0.895

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.53542.59933.97475.18901.27021.11332.14972.14972.83732.83734.24894.24896.12085.34425.3442
C21.53541.55662.58393.97622.48392.25501.11111.11112.18842.18842.80812.80814.79174.29014.2901
C32.59931.55661.56062.59012.91833.59852.20542.20541.10741.10742.19162.19163.55322.84462.8446
C43.97472.58391.56061.56114.46434.83412.82762.82762.19672.19671.10911.10912.21472.20692.2069
C55.18903.97622.59011.56115.38606.16214.28184.28182.82142.82142.19652.19651.10531.10571.1057
O61.27022.48392.91834.46435.38602.06453.18213.18212.85192.85194.88434.88436.42385.38535.3853
H71.11332.25503.59854.83416.16212.06452.55252.55253.87663.87664.98244.98247.03186.35966.3596
H82.14971.11112.20542.82764.28183.18212.55251.77583.11292.55612.59623.14804.96684.83584.4952
H92.14971.11112.20542.82764.28183.18212.55251.77582.55613.11293.14802.59624.96684.49524.8358
H102.83732.18841.10742.19672.82142.85193.87663.11292.55611.77763.10632.54493.83692.62603.1745
H112.83732.18841.10742.19672.82142.85193.87662.55613.11291.77762.54493.10633.83693.17452.6260
H124.24892.80812.19161.10912.19654.88434.98242.59623.14803.10632.54491.78492.54283.11602.5525
H134.24892.80812.19161.10912.19654.88434.98243.14802.59622.54493.10631.78492.54282.55253.1160
H146.12084.79173.55322.21471.10536.42387.03184.96684.96683.83693.83692.54282.54281.79131.7913
H155.34424.29012.84462.20691.10575.38536.35964.83584.49522.62603.17453.11602.55251.79131.7898
H165.34424.29012.84462.20691.10575.38536.35964.49524.83583.17452.62602.55253.11601.79131.7898

picture of Pentanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 114.419 C1 C2 H8 107.557
C1 C2 H9 107.557 C2 C1 O6 124.316
C2 C1 H7 115.800 C2 C3 C4 111.980
C2 C3 H10 109.309 C2 C3 H11 109.309
C3 C2 H8 110.412 C3 C2 H9 110.412
C3 C4 C5 112.140 C3 C4 H12 109.184
C3 C4 H13 109.184 C4 C3 H10 109.674
C4 C3 H11 109.674 C4 C5 H14 111.166
C4 C5 H15 110.528 C4 C5 H16 110.528
C5 C4 H12 109.524 C5 C4 H13 109.524
O6 C1 H7 119.884 H8 C2 H9 106.096
H10 C3 H11 106.755 H12 C4 H13 107.156
H14 C5 H15 108.229 H14 C5 H16 108.229
H15 C5 H16 108.059
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability