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All results from a given calculation for CH3CH(CH3)CH3 (Isobutane)

using model chemistry: CCSD=FULL/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CCSD=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-158.216574
Energy at 298.15K 
HF Energy-157.356874
Nuclear repulsion energy135.337834
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 CCSD=FULL/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD=FULL/aug-cc-pVTZ
ABC
0.26339 0.26339 0.15289

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 -0.000 0.378
H2 0.000 -0.000 1.471
C3 -0.000 1.444 -0.096
C4 1.251 -0.722 -0.096
C5 -1.251 -0.722 -0.096
H6 -0.000 1.485 -1.187
H7 1.286 -0.742 -1.187
H8 -1.286 -0.743 -1.187
H9 0.883 1.975 0.259
H10 -0.883 1.975 0.259
H11 1.269 -1.752 0.259
H12 2.152 -0.222 0.259
H13 -2.152 -0.223 0.259
H14 -1.268 -1.752 0.259

Atom - Atom Distances (Å)
  C1 H2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14
C11.09291.51991.51991.51992.15742.15732.15732.16632.16632.16632.16632.16632.1663
H21.09292.13092.13092.13093.04453.04443.04442.47912.47912.47912.47912.47912.4791
C31.51992.13092.50122.50121.09142.76142.76141.08971.08973.45692.74482.74483.4569
C41.51992.13092.50122.50132.76141.09142.76152.74483.45691.08971.08973.45702.7448
C51.51992.13092.50122.50132.76142.76151.09143.45692.74482.74483.45701.08971.0897
H62.15743.04451.09142.76142.76142.57242.57241.76381.76383.76573.10453.10453.7657
H72.15733.04442.76141.09142.76152.57242.57253.10453.76571.76381.76383.76573.1046
H82.15733.04442.76142.76151.09142.57242.57253.76573.10453.10463.76571.76381.7638
H92.16632.47911.08972.74483.45691.76383.10453.76571.76583.74642.53733.74644.3030
H102.16632.47911.08973.45692.74481.76383.76573.10451.76584.30303.74642.53733.7464
H112.16632.47913.45691.08972.74483.76571.76383.10463.74644.30301.76573.74652.5374
H122.16632.47912.74481.08973.45703.10451.76383.76572.53733.74641.76574.30313.7465
H132.16632.47912.74483.45701.08973.10453.76571.76383.74642.53733.74654.30311.7657
H142.16632.47913.45692.74481.08973.76573.10461.76384.30303.74642.53743.74651.7657

picture of Isobutane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H6 110.334 C1 C3 H9 111.146
C1 C3 H10 111.146 C1 C4 H7 110.334
C1 C4 H11 111.147 C1 C4 H12 111.147
C1 C5 H8 110.334 C1 C5 H13 111.147
C1 C5 H14 111.147 H2 C1 C3 108.175
H2 C1 C4 108.174 H2 C1 C5 108.174
C3 C1 C4 110.735 C3 C1 C5 110.735
C4 C1 C5 110.739 H6 C3 H9 107.931
H6 C3 H10 107.931 H7 C4 H11 107.931
H7 C4 H12 107.931 H8 C5 H13 107.931
H8 C5 H14 107.931 H9 C3 H10 108.227
H11 C4 H12 108.226 H13 C5 H14 108.226
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability