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All results from a given calculation for C5H10O (Pentanal)

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-270.939346
Energy at 298.15K-270.950188
Nuclear repulsion energy230.963299
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 MP2/6-31+G**
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' 3209 3018 32.30      
2 A' 3123 2937 29.71      
3 A' 3113 2928 24.71      
4 A' 3101 2917 26.55      
5 A' 3087 2904 21.13      
6 A' 3005 2827 130.59      
7 A' 1759 1655 113.94      
8 A' 1552 1460 7.86      
9 A' 1539 1447 0.82      
10 A' 1531 1440 1.04      
11 A' 1495 1406 15.77      
12 A' 1457 1370 4.11      
13 A' 1451 1365 4.30      
14 A' 1439 1353 5.49      
15 A' 1400 1317 12.32      
16 A' 1305 1228 3.94      
17 A' 1167 1098 8.97      
18 A' 1114 1047 0.44      
19 A' 1076 1012 1.76      
20 A' 946 890 1.43      
21 A' 922 867 10.70      
22 A' 697 656 11.40      
23 A' 405 381 1.91      
24 A' 297 280 4.10      
25 A' 140 132 5.19      
26 A" 3206 3016 45.62      
27 A" 3181 2992 28.16      
28 A" 3148 2961 6.48      
29 A" 3132 2946 7.59      
30 A" 1544 1452 8.03      
31 A" 1351 1271 0.32      
32 A" 1335 1256 0.19      
33 A" 1267 1191 0.20      
34 A" 1181 1111 0.48      
35 A" 994 935 0.31      
36 A" 876 824 0.10      
37 A" 764 719 0.79      
38 A" 687 646 2.47      
39 A" 254 239 0.00      
40 A" 160 151 1.58      
41 A" 111 104 0.81      
42 A" 75 71 2.86      

Unscaled Zero Point Vibrational Energy (zpe) 31796.1 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 29907.5 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 MP2/6-31+G**
ABC
0.34356 0.04906 0.04433

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.813 -2.060 0.000
C2 -0.368 -1.127 0.000
C3 0.000 0.349 0.000
C4 -1.225 1.259 0.000
C5 -0.852 2.738 0.000
O6 1.986 -1.699 0.000
H7 0.567 -3.138 0.000
H8 -0.982 -1.383 0.872
H9 -0.982 -1.383 -0.872
H10 0.620 0.564 -0.873
H11 0.620 0.564 0.873
H12 -1.840 1.036 0.877
H13 -1.840 1.036 -0.877
H14 -1.739 3.372 0.000
H15 -0.260 2.987 -0.882
H16 -0.260 2.987 0.882

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.50512.54283.89495.07901.22721.10552.10712.10712.77292.77294.17064.17066.00185.23485.2348
C21.50511.52092.53503.89502.42222.21821.09671.09672.14452.14452.75932.75934.70314.20854.2085
C32.54281.52091.52602.53642.85303.53312.17342.17341.09281.09282.15112.15113.48742.79352.7935
C43.89492.53501.52601.52554.36594.74842.79252.79252.15662.15661.09411.09412.17472.16702.1670
C55.07903.89502.53641.52555.26736.04534.21414.21412.76702.76702.15492.15491.09011.09091.0909
O61.22722.42222.85304.36595.26732.02033.10923.10922.78432.78434.78434.78436.29235.27095.2709
H71.10552.21823.53314.74846.04532.02032.49832.49833.80453.80454.89784.89786.90676.24346.2434
H82.10711.09672.17342.79254.21413.10922.49831.74373.06672.52152.56653.10564.89314.76364.4292
H92.10711.09672.17342.79254.21413.10922.49831.74372.52153.06673.10562.56654.89314.42924.7636
H102.77292.14451.09282.15662.76702.78433.80453.06672.52151.74703.05632.50543.76992.57763.1184
H112.77292.14451.09282.15662.76702.78433.80452.52153.06671.74702.50543.05633.76993.11842.5776
H124.17062.75932.15111.09412.15494.78434.89782.56653.10563.05632.50541.75372.49753.06562.5111
H134.17062.75932.15111.09412.15494.78434.89783.10562.56652.50543.05631.75372.49752.51113.0656
H146.00184.70313.48742.17471.09016.29236.90674.89314.89313.76993.76992.49752.49751.76441.7644
H155.23484.20852.79352.16701.09095.27096.24344.76364.42922.57763.11843.06562.51111.76441.7631
H165.23484.20852.79352.16701.09095.27096.24344.42924.76363.11842.57762.51113.06561.76441.7631

picture of Pentanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 114.348 C1 C2 H8 107.117
C1 C2 H9 107.117 C2 C1 O6 124.560
C2 C1 H7 115.511 C2 C3 C4 112.607
C2 C3 H10 109.170 C2 C3 H11 109.170
C3 C2 H8 111.222 C3 C2 H9 111.222
C3 C4 C5 112.443 C3 C4 H12 109.260
C3 C4 H13 109.260 C4 C3 H10 109.774
C4 C3 H11 109.774 C4 C5 H14 111.405
C4 C5 H15 110.738 C4 C5 H16 110.738
C5 C4 H12 109.585 C5 C4 H13 109.585
O6 C1 H7 119.929 H8 C2 H9 105.301
H10 C3 H11 106.135 H12 C4 H13 106.532
H14 C5 H15 107.999 H14 C5 H16 107.999
H15 C5 H16 107.827
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability