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

using model chemistry: CCD/6-31G**

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/6-31G**
 hartrees
Energy at 0K-270.980240
Energy at 298.15K-270.991110
HF Energy-270.034492
Nuclear repulsion energy240.043996
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/6-31G**
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 3223 3022 19.27      
2 A 3215 3014 24.08      
3 A 3208 3008 34.74      
4 A 3199 2999 33.82      
5 A 3147 2951 22.59      
6 A 3130 2935 13.10      
7 A 3118 2923 20.03      
8 A 3102 2908 30.44      
9 A 3073 2882 17.83      
10 A 2998 2811 100.41      
11 A 1871 1754 113.76      
12 A 1571 1473 2.36      
13 A 1566 1468 6.37      
14 A 1559 1461 3.97      
15 A 1556 1459 6.00      
16 A 1547 1450 0.68      
17 A 1488 1395 6.62      
18 A 1478 1385 1.73      
19 A 1464 1373 4.33      
20 A 1436 1347 3.47      
21 A 1416 1328 2.01      
22 A 1358 1273 0.97      
23 A 1327 1244 0.36      
24 A 1240 1163 1.26      
25 A 1207 1132 4.25      
26 A 1157 1085 2.75      
27 A 1085 1017 0.05      
28 A 1052 987 9.42      
29 A 1007 944 4.52      
30 A 964 904 4.18      
31 A 943 884 10.50      
32 A 818 767 5.62      
33 A 801 751 2.02      
34 A 674 632 9.69      
35 A 415 389 0.61      
36 A 397 372 0.60      
37 A 306 287 4.72      
38 A 266 249 0.75      
39 A 243 228 3.00      
40 A 211 198 0.40      
41 A 95 89 2.23      
42 A 73 69 4.41      

Unscaled Zero Point Vibrational Energy (zpe) 32001.1 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 30004.2 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/6-31G**
ABC
0.23595 0.06993 0.05847

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.373 -0.701 0.213
C2 -0.083 0.071 0.404
C3 1.056 -0.687 -0.301
C4 2.447 -0.136 0.008
C5 -0.233 1.520 -0.049
O6 -2.394 -0.242 -0.255
H7 -1.333 -1.760 0.533
H8 0.123 0.042 1.482
H9 1.017 -1.740 -0.004
H10 0.879 -0.662 -1.380
H11 3.216 -0.747 -0.466
H12 2.565 0.884 -0.356
H13 2.633 -0.135 1.083
H14 -0.398 1.566 -1.125
H15 -1.088 1.987 0.436
H16 0.657 2.099 0.191

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.51552.48293.86752.51071.21331.10652.09832.61492.75894.63904.28304.13872.80792.71243.4595
C21.51551.53922.56991.52512.42282.22051.09872.15772.15533.50852.87232.80792.16132.16352.1697
C32.48291.53921.52792.56833.47862.74792.14031.09411.09412.16692.17902.16962.80553.50582.8575
C43.86752.56991.52793.15114.84934.14742.75822.14862.15921.08991.08931.09123.50384.14622.8698
C52.51071.52512.56833.15112.79593.50802.15743.49122.78784.14822.88543.49761.09011.08841.0887
O61.21332.42283.47864.84932.79592.01273.07163.73353.48605.63615.08585.20322.83022.67383.8717
H71.10652.22052.74794.14743.50802.01272.50392.41033.12324.76554.79274.32123.83223.75604.3557
H82.09831.09872.14032.75822.15743.07162.50392.48653.04313.73923.16992.54783.06482.51882.4870
H92.61492.15771.09412.14863.49123.73352.41032.48651.75282.45603.06632.52373.76654.30253.8607
H102.75892.15531.09412.15922.78783.48603.12323.04311.75282.51072.50653.06952.58113.76643.1850
H114.63903.50852.16691.08994.14825.63614.76553.73922.45602.51071.75981.76424.34115.17813.8834
H124.28302.87232.17901.08932.88545.08584.79273.16993.06632.50651.75981.76413.13613.89722.3270
H134.13872.80792.16961.09123.49765.20324.32122.54782.52373.06951.76421.76414.11784.33253.1132
H142.80792.16132.80553.50381.09012.83023.83223.06483.76652.58114.34113.13614.11781.75801.7691
H152.71242.16353.50584.14621.08842.67383.75602.51884.30253.76645.17813.89724.33251.75801.7664
H163.45952.16972.85752.86981.08873.87174.35572.48703.86073.18503.88342.32703.11321.76911.7664

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 108.741 C1 C2 C5 111.326
C1 C2 H8 105.663 C2 C1 O6 124.847
C2 C1 H7 114.855 C2 C3 C4 113.836
C2 C3 H9 108.877 C2 C3 H10 108.693
C2 C5 H14 110.360 C2 C5 H15 110.637
C2 C5 H16 111.116 C3 C2 C5 113.885
C3 C2 H8 107.279 C3 C4 H11 110.624
C3 C4 H12 111.632 C3 C4 H13 110.761
C4 C3 H9 108.941 C4 C3 H10 109.770
C5 C2 H8 109.549 O6 C1 H7 120.297
H9 C3 H10 106.461 H11 C4 H12 107.711
H11 C4 H13 107.966 H12 C4 H13 108.005
H14 C5 H15 107.603 H14 C5 H16 108.568
H15 C5 H16 108.453
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability