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All results from a given calculation for C5H10O (Pentanal)

using model chemistry: MP2/SDD

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/SDD
 hartrees
Energy at 0K-270.495218
Energy at 298.15K-270.505915
HF Energy-269.929525
Nuclear repulsion energy226.196758
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/SDD
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' 3118 3010 49.86      
2 A' 3039 2934 36.18      
3 A' 3017 2912 17.15      
4 A' 3013 2909 53.04      
5 A' 3004 2900 55.56      
6 A' 2971 2868 104.98      
7 A' 1589 1534 53.14      
8 A' 1546 1492 10.70      
9 A' 1533 1479 3.85      
10 A' 1527 1474 0.68      
11 A' 1502 1450 22.93      
12 A' 1458 1408 5.83      
13 A' 1432 1382 3.57      
14 A' 1418 1369 2.95      
15 A' 1398 1349 7.78      
16 A' 1314 1269 11.62      
17 A' 1146 1106 14.87      
18 A' 1088 1051 0.41      
19 A' 1046 1010 1.18      
20 A' 922 890 0.24      
21 A' 895 864 8.72      
22 A' 671 647 11.29      
23 A' 392 379 1.93      
24 A' 287 277 4.06      
25 A' 137 132 5.70      
26 A" 3118 3010 91.45      
27 A" 3101 2994 25.66      
28 A" 3065 2959 8.63      
29 A" 3050 2944 12.78      
30 A" 1541 1488 8.95      
31 A" 1342 1295 0.20      
32 A" 1330 1284 0.02      
33 A" 1273 1228 0.10      
34 A" 1183 1142 1.07      
35 A" 995 960 0.48      
36 A" 881 851 0.58      
37 A" 774 748 1.69      
38 A" 699 674 6.63      
39 A" 229 221 0.00      
40 A" 153 148 2.36      
41 A" 104 101 1.23      
42 A" 71 69 3.14      

Unscaled Zero Point Vibrational Energy (zpe) 31186.2 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 30104.0 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 MP2/SDD
ABC
0.32881 0.04707 0.04250

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.855 -2.095 0.000
C2 -0.359 -1.155 0.000
C3 0.000 0.359 0.000
C4 -1.273 1.261 0.000
C5 -0.917 2.781 0.000
O6 2.063 -1.704 0.000
H7 0.624 -3.184 0.000
H8 -0.978 -1.406 0.888
H9 -0.978 -1.406 -0.888
H10 0.619 0.589 -0.889
H11 0.619 0.589 0.889
H12 -1.887 1.025 0.892
H13 -1.887 1.025 -0.892
H14 -1.829 3.405 0.000
H15 -0.321 3.039 -0.895
H16 -0.321 3.039 0.895

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.53532.59873.97375.18741.27001.11342.14962.14962.83662.83664.24804.24806.11925.34235.3423
C21.53531.55612.58303.97482.48362.25521.11101.11102.18802.18802.80732.80734.79044.28854.2885
C32.59871.55611.56012.58922.91743.59812.20502.20501.10731.10732.19112.19113.55232.84352.8435
C43.97372.58301.56011.56074.46314.83342.82692.82692.19622.19621.10901.10902.21432.20642.2064
C55.18743.97482.58921.56075.38406.16084.28074.28072.82042.82042.19612.19611.10521.10571.1057
O61.27002.48362.91744.46315.38402.06433.18183.18182.85102.85104.88304.88306.42195.38315.3831
H71.11342.25523.59814.83346.16082.06432.55282.55283.87613.87614.98184.98187.03076.35806.3580
H82.14961.11102.20502.82694.28073.18182.55281.77583.11262.55572.59543.14734.96564.83454.4938
H92.14961.11102.20502.82694.28073.18182.55281.77582.55573.11263.14732.59544.96564.49384.8345
H102.83662.18801.10732.19622.82042.85103.87613.11262.55571.77763.10592.54433.83592.62483.1735
H112.83662.18801.10732.19622.82042.85103.87612.55573.11261.77762.54433.10593.83593.17352.6248
H124.24802.80732.19111.10902.19614.88304.98182.59543.14733.10592.54431.78492.54263.11562.5519
H134.24802.80732.19111.10902.19614.88304.98183.14732.59542.54433.10591.78492.54262.55193.1156
H146.11924.79043.55232.21431.10526.42197.03074.96564.96563.83593.83592.54262.54261.79121.7912
H155.34234.28852.84352.20641.10575.38316.35804.83454.49382.62483.17353.11562.55191.79121.7897
H165.34234.28852.84352.20641.10575.38316.35804.49384.83453.17352.62482.55193.11561.79121.7897

picture of Pentanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 114.403 C1 C2 H8 107.557
C1 C2 H9 107.557 C2 C1 O6 124.309
C2 C1 H7 115.819 C2 C3 C4 111.971
C2 C3 H10 109.308 C2 C3 H11 109.308
C3 C2 H8 110.417 C3 C2 H9 110.417
C3 C4 C5 112.123 C3 C4 H12 109.182
C3 C4 H13 109.182 C4 C3 H10 109.675
C4 C3 H11 109.675 C4 C5 H14 111.168
C4 C5 H15 110.520 C4 C5 H16 110.520
C5 C4 H12 109.529 C5 C4 H13 109.529
O6 C1 H7 119.872 H8 C2 H9 106.103
H10 C3 H11 106.765 H12 C4 H13 107.166
H14 C5 H15 108.232 H14 C5 H16 108.232
H15 C5 H16 108.066
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability