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All results from a given calculation for C5H10O (Pentanal)

using model chemistry: MP2/aug-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/aug-cc-pVDZ
 hartrees
Energy at 0K-270.981555
Energy at 298.15K-270.992338
Nuclear repulsion energy229.855299
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/aug-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' 3152 3023 31.25      
2 A' 3067 2941 30.19      
3 A' 3057 2931 23.48      
4 A' 3046 2921 23.35      
5 A' 3034 2910 21.30      
6 A' 2948 2827 132.06      
7 A' 1733 1662 116.05      
8 A' 1496 1435 6.75      
9 A' 1482 1421 0.86      
10 A' 1471 1411 1.32      
11 A' 1437 1378 13.84      
12 A' 1404 1347 8.03      
13 A' 1397 1339 5.68      
14 A' 1395 1338 3.59      
15 A' 1354 1299 10.98      
16 A' 1262 1210 2.38      
17 A' 1142 1095 8.09      
18 A' 1095 1050 0.29      
19 A' 1057 1014 1.43      
20 A' 929 891 3.45      
21 A' 904 867 8.87      
22 A' 685 657 12.08      
23 A' 396 380 1.73      
24 A' 290 278 4.02      
25 A' 135 130 4.97      
26 A" 3146 3017 44.65      
27 A" 3123 2995 27.19      
28 A" 3091 2965 4.04      
29 A" 3077 2951 7.53      
30 A" 1490 1429 6.75      
31 A" 1318 1264 0.23      
32 A" 1301 1247 0.06      
33 A" 1228 1177 0.13      
34 A" 1146 1099 0.58      
35 A" 966 926 0.15      
36 A" 849 815 0.15      
37 A" 742 711 1.17      
38 A" 666 638 2.37      
39 A" 251 241 0.00      
40 A" 174 167 1.63      
41 A" 110 105 1.07      
42 A" 75 72 2.34      

Unscaled Zero Point Vibrational Energy (zpe) 31060.2 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 29786.7 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/aug-cc-pVDZ
ABC
0.34105 0.04864 0.04397

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.839 -2.060 0.000
C2 -0.355 -1.132 0.000
C3 0.000 0.353 0.000
C4 -1.244 1.249 0.000
C5 -0.885 2.740 0.000
O6 2.007 -1.688 0.000
H7 0.599 -3.152 0.000
H8 -0.972 -1.400 0.880
H9 -0.972 -1.400 -0.880
H10 0.625 0.578 -0.882
H11 0.625 0.578 0.882
H12 -1.863 1.016 0.885
H13 -1.863 1.016 -0.885
H14 -1.787 3.372 0.000
H15 -0.289 2.998 -0.891
H16 -0.289 2.998 0.891

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.51202.55513.91015.10001.22641.11762.11882.11882.78952.78954.18874.18876.03345.25855.2585
C21.51201.52742.54193.90812.42702.23341.10751.10752.15882.15882.76992.76994.72644.22584.2258
C32.55511.52741.53282.54522.86333.55592.18952.18951.10361.10362.16632.16633.50782.80562.8056
C43.91012.54191.53281.53314.38174.77112.80472.80472.17242.17241.10501.10502.19122.18252.1825
C55.10003.90812.54521.53315.28916.07554.23324.23322.78052.78052.17022.17021.10131.10231.1023
O61.22642.42702.86334.38175.28912.03123.12023.12022.79722.79724.80384.80386.32485.29445.2944
H71.11762.23343.55594.77116.07552.03122.51202.51203.83223.83224.92084.92086.94636.27726.2772
H82.11881.10752.18952.80474.23323.12022.51201.75903.09262.54192.57523.12184.92044.79014.4511
H92.11881.10752.18952.80474.23323.12022.51201.75902.54193.09263.12182.57524.92044.45114.7901
H102.78952.15881.10362.17242.78052.79723.83223.09262.54191.76373.08242.52563.79482.58733.1362
H112.78952.15881.10362.17242.78052.79723.83222.54193.09261.76372.52563.08243.79483.13622.5873
H124.18872.76992.16631.10502.17024.80384.92082.57523.12183.08242.52561.77052.51783.09162.5307
H134.18872.76992.16631.10502.17024.80384.92083.12182.57522.52563.08241.77052.51782.53073.0916
H146.03344.72643.50782.19121.10136.32486.94634.92044.92043.79483.79482.51782.51781.78211.7821
H155.25854.22582.80562.18251.10235.29446.27724.79014.45112.58733.13623.09162.53071.78211.7811
H165.25854.22582.80562.18251.10235.29446.27724.45114.79013.13622.58732.53073.09161.78211.7811

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 106.957
C1 C2 H9 106.957 C2 C1 O6 124.492
C2 C1 H7 115.463 C2 C3 C4 112.323
C2 C3 H10 109.214 C2 C3 H11 109.214
C3 C2 H8 111.400 C3 C2 H9 111.400
C3 C4 C5 112.230 C3 C4 H12 109.345
C3 C4 H13 109.345 C4 C3 H10 109.905
C4 C3 H11 109.905 C4 C5 H14 111.509
C4 C5 H15 110.760 C4 C5 H16 110.760
C5 C4 H12 109.638 C5 C4 H13 109.638
O6 C1 H7 120.045 H8 C2 H9 105.154
H10 C3 H11 106.082 H12 C4 H13 106.479
H14 C5 H15 107.940 H14 C5 H16 107.940
H15 C5 H16 107.786
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability