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All results from a given calculation for CH2CH(CH3)2 (Isobutyl radical)

using model chemistry: MP3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A'
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-157.290805
Energy at 298.15K 
HF Energy-156.681061
Nuclear repulsion energy126.650586
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 MP3/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP3/6-31+G**
ABC
0.28174 0.26578 0.15501

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.280 0.243 0.000
C2 0.875 1.205 0.000
H3 -1.212 0.819 0.000
H4 1.333 1.525 0.925
H5 1.333 1.525 -0.925
C6 -0.280 -0.624 -1.264
C7 -0.280 -0.624 1.264
H8 0.623 -1.232 -1.299
H9 -1.142 -1.291 -1.277
H10 -0.312 -0.012 -2.166
H11 0.623 -1.232 1.299
H12 -1.142 -1.291 1.277
H13 -0.312 -0.012 2.166

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 C6 C7 H8 H9 H10 H11 H12 H13
C11.50301.09612.25832.25831.53331.53332.16312.17402.18092.16312.17402.1809
C21.50302.12271.08041.08042.50572.50572.77323.45362.75342.77323.45362.7534
H31.09612.12272.79882.79882.13362.13363.04392.46732.48833.04392.46732.4883
H42.25831.08042.79881.84933.46592.70863.61244.34753.82362.87163.76542.5710
H52.25831.08042.79881.84932.70863.46592.87163.76542.57103.61244.34753.8236
C61.53332.50572.13363.46592.70862.52871.08931.08971.09012.78472.76503.4844
C71.53332.50572.13362.70863.46592.52872.78472.76503.48441.08931.08971.0901
H82.16312.77323.04393.61242.87161.08932.78471.76631.76522.59733.12303.7903
H92.17403.45362.46734.34753.76541.08972.76501.76631.76453.12302.55383.7650
H102.18092.75342.48833.82362.57101.09013.48441.76521.76453.79033.76504.3314
H112.16312.77323.04392.87163.61242.78471.08932.59733.12303.79031.76631.7652
H122.17403.45362.46733.76544.34752.76501.08973.12302.55383.76501.76631.7645
H132.18092.75342.48832.57103.82363.48441.09013.79033.76504.33141.76521.7645

picture of Isobutyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.023 C1 C2 H5 121.023
C1 C6 H8 109.985 C1 C6 H9 110.820
C1 C6 H10 111.351 C1 C7 H11 109.985
C1 C7 H12 110.820 C1 C7 H13 111.351
C2 C1 H3 108.499 C2 C1 C6 111.226
C2 C1 C7 111.226 H3 C1 C6 107.300
H3 C1 C7 107.300 H4 C2 H5 117.703
C6 C1 C7 111.095 H8 C6 H9 108.313
H8 C6 H10 108.186 H9 C6 H10 108.085
H11 C7 H12 108.313 H11 C7 H13 108.186
H12 C7 H13 108.085
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability