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All results from a given calculation for C5H10O (2-methylbutyraldehyde)

using model chemistry: CCD/TZVP

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/TZVP
 hartrees
Energy at 0K-271.100213
Energy at 298.15K-271.111071
HF Energy-270.110088
Nuclear repulsion energy240.527338
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/TZVP
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 3169 3004 19.30      
2 A 3159 2994 29.57      
3 A 3154 2990 33.97      
4 A 3145 2981 36.46      
5 A 3102 2941 21.94      
6 A 3081 2921 13.77      
7 A 3070 2911 21.80      
8 A 3060 2901 30.12      
9 A 3039 2881 17.89      
10 A 2959 2805 95.94      
11 A 1852 1756 139.97      
12 A 1539 1459 1.91      
13 A 1531 1451 8.16      
14 A 1525 1446 7.08      
15 A 1524 1445 6.43      
16 A 1512 1433 0.61      
17 A 1477 1400 7.40      
18 A 1454 1378 0.78      
19 A 1452 1376 5.48      
20 A 1418 1345 2.57      
21 A 1399 1326 1.76      
22 A 1341 1271 1.47      
23 A 1309 1241 0.32      
24 A 1226 1162 1.07      
25 A 1195 1133 3.67      
26 A 1145 1085 2.67      
27 A 1071 1015 0.08      
28 A 1041 987 9.09      
29 A 999 947 4.21      
30 A 958 908 1.79      
31 A 929 881 13.53      
32 A 810 768 5.54      
33 A 795 754 2.22      
34 A 677 642 9.06      
35 A 415 393 0.59      
36 A 390 369 0.48      
37 A 308 292 3.77      
38 A 258 245 1.65      
39 A 244 232 2.52      
40 A 204 194 0.15      
41 A 96 91 2.27      
42 A 74 70 5.24      

Unscaled Zero Point Vibrational Energy (zpe) 31551.6 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 29910.9 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/TZVP
ABC
0.23431 0.07065 0.05902

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.384 -0.682 0.223
C2 -0.088 0.074 0.423
C3 1.037 -0.711 -0.273
C4 2.431 -0.141 -0.022
C5 -0.202 1.521 -0.041
O6 -2.377 -0.233 -0.290
H7 -1.367 -1.731 0.577
H8 0.109 0.046 1.504
H9 1.008 -1.750 0.073
H10 0.835 -0.733 -1.349
H11 3.195 -0.788 -0.456
H12 2.546 0.849 -0.464
H13 2.627 -0.058 1.051
H14 -0.323 1.566 -1.125
H15 -1.070 2.004 0.408
H16 0.687 2.090 0.233

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.51332.47103.86102.51371.20481.10742.09692.62362.72034.63024.27294.14242.82792.71063.4596
C21.51331.53792.56701.52372.41702.21751.09902.15602.15463.50612.88512.78972.16292.16572.1679
C32.47101.53791.52752.56343.44732.74592.14241.09471.09532.16742.17942.16962.78613.50362.8677
C43.86102.56701.52753.11354.81674.16102.78452.15022.15861.09141.09061.09303.42294.12822.8427
C52.51371.52372.56343.11352.80523.50922.15793.48902.80464.12822.85983.41841.09211.09011.0902
O61.20482.41703.44734.81672.80522.00413.07793.72713.41955.60225.04335.18342.85552.68323.8802
H71.10742.21752.74594.16103.50922.00412.48892.42803.09174.77174.80134.35603.85483.75084.3513
H82.09691.09902.14242.78452.15793.07792.48892.46563.04503.74953.23332.56053.06712.53452.4745
H92.62362.15601.09472.15023.48903.72712.42802.46561.75692.44703.06732.53743.76854.30353.8559
H102.72032.15461.09532.15862.80463.41953.09173.04501.75692.52372.49223.06982.58383.76923.2389
H114.63023.50612.16741.09144.12825.60224.77173.74952.44702.52371.76171.76784.28565.17023.8788
H124.27292.88512.17941.09062.85985.04334.80133.23333.06732.49221.76171.76763.02973.89422.3405
H134.14242.78972.16961.09303.41845.18344.35602.56052.53743.06981.76781.76764.00914.28153.0071
H142.82792.16292.78613.42291.09212.85553.85483.06713.76852.58384.28563.02974.00911.76071.7718
H152.71062.16573.50364.12821.09012.68323.75082.53454.30353.76925.17023.89424.28151.76071.7676
H163.45962.16792.86772.84271.09023.88024.35132.47453.85593.23893.87882.34053.00711.77181.7676

picture of 2-methylbutyraldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 108.162 C1 C2 C5 111.726
C1 C2 H8 105.688 C2 C1 O6 125.171
C2 C1 H7 114.710 C2 C3 C4 113.733
C2 C3 H9 108.796 C2 C3 H10 108.653
C2 C5 H14 110.466 C2 C5 H15 110.815
C2 C5 H16 110.974 C3 C2 C5 113.704
C3 C2 H8 107.507 C3 C4 H11 110.599
C3 C4 H12 111.607 C3 C4 H13 110.674
C4 C3 H9 109.052 C4 C3 H10 109.672
C5 C2 H8 109.662 O6 C1 H7 120.112
H9 C3 H10 106.695 H11 C4 H12 107.679
H11 C4 H13 108.055 H12 C4 H13 108.090
H14 C5 H15 107.582 H14 C5 H16 108.564
H15 C5 H16 108.333
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability