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

using model chemistry: QCISD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at QCISD/cc-pVTZ
 hartrees
Energy at 0K-271.262584
Energy at 298.15K 
HF Energy-270.117154
Nuclear repulsion energy240.469182
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 QCISD/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at QCISD/cc-pVTZ
ABC
0.23530 0.07038 0.05880

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.372 -0.693 0.219
C2 -0.083 0.076 0.406
C3 1.046 -0.688 -0.304
C4 2.438 -0.145 0.007
C5 -0.224 1.523 -0.048
O6 -2.386 -0.247 -0.260
H7 -1.329 -1.749 0.552
H8 0.126 0.042 1.483
H9 0.999 -1.741 -0.013
H10 0.867 -0.655 -1.383
H11 3.207 -0.753 -0.471
H12 2.559 0.879 -0.347
H13 2.626 -0.152 1.083
H14 -0.387 1.569 -1.126
H15 -1.079 1.998 0.431
H16 0.669 2.098 0.191

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.51282.47363.85522.51011.20711.10732.09342.60272.75314.63074.27094.12542.81022.71523.4580
C21.51281.53682.56231.52262.41912.21461.09802.15642.15323.50422.86172.80132.16022.16392.1674
C32.47361.53681.52632.56193.46032.73842.13871.09381.09402.16832.17792.16902.79633.50192.8538
C43.85522.56231.52633.14204.83274.13052.75022.14882.15841.09021.08971.09193.49304.13992.8622
C52.51011.52262.56193.14202.80203.50482.15883.48572.77704.13842.87193.49371.09091.08891.0891
O61.20712.41913.46034.83272.80202.00783.07103.70873.46555.61955.07205.18932.83642.68803.8777
H71.10732.21462.73844.13053.50482.00782.48802.39613.12474.75524.77754.29763.83533.75644.3494
H82.09341.09802.13872.75022.15883.07102.48802.48653.04143.73453.15762.53963.06632.52582.4880
H92.60272.15641.09382.14883.48573.70872.39612.48651.75332.46143.06672.52353.75704.30023.8582
H102.75312.15321.09402.15842.77703.46553.12473.04141.75332.51272.50683.06952.56543.75623.1766
H114.63073.50422.16831.09024.13845.61954.75523.73452.46142.51271.75961.76424.32785.17133.8732
H124.27092.86172.17791.08972.87195.07204.77753.15763.06672.50681.75961.76393.12383.88432.3121
H134.12542.80132.16901.09193.49375.18934.29762.53962.52353.06951.76421.76394.11284.33223.1120
H142.81022.16022.79633.49301.09092.83643.83533.06633.75702.56544.32783.12384.11281.75721.7692
H152.71522.16393.50194.13991.08892.68803.75642.52584.30023.75625.17133.88434.33221.75721.7672
H163.45802.16742.85382.86221.08913.87774.34942.48803.85823.17663.87322.31213.11201.76921.7672

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 108.406 C1 C2 C5 111.569
C1 C2 H8 105.507 C2 C1 O6 125.214
C2 C1 H7 114.503 C2 C3 C4 113.540
C2 C3 H9 108.947 C2 C3 H10 108.690
C2 C5 H14 110.408 C2 C5 H15 110.818
C2 C5 H16 111.090 C3 C2 C5 113.728
C3 C2 H8 107.352 C3 C4 H11 110.828
C3 C4 H12 111.625 C3 C4 H13 110.781
C4 C3 H9 109.076 C4 C3 H10 109.821
C5 C2 H8 109.871 O6 C1 H7 120.279
H9 C3 H10 106.526 H11 C4 H12 107.644
H11 C4 H13 107.901 H12 C4 H13 107.908
H14 C5 H15 107.440 H14 C5 H16 108.506
H15 C5 H16 108.466
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability