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

using model chemistry: MP2/6-31+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 MP2/6-31+G**
 hartrees
Energy at 0K-157.248708
Energy at 298.15K 
HF Energy-156.683577
Nuclear repulsion energy126.748712
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 MP2/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP2/6-31+G**
ABC
0.28246 0.26636 0.15544

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.271 0.236 0.000
C2 0.874 1.195 0.000
H3 -1.208 0.815 0.000
H4 1.228 1.628 0.925
H5 1.228 1.628 -0.925
C6 -0.271 -0.630 -1.262
C7 -0.271 -0.630 1.262
H8 0.628 -1.247 -1.297
H9 -1.139 -1.290 -1.279
H10 -0.295 -0.013 -2.161
H11 0.628 -1.247 1.297
H12 -1.139 -1.290 1.279
H13 -0.295 -0.013 2.161

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 C6 C7 H8 H9 H10 H11 H12 H13
C11.49331.10112.24482.24481.52991.52992.16542.17172.17552.16542.17172.1755
C21.49332.11571.08071.08072.49602.49602.77553.44382.73752.77553.44382.7375
H31.10112.11572.72902.72902.13432.13433.05012.46362.48783.05012.46362.4878
H42.24481.08072.72901.84943.48162.73043.68214.35543.81212.95983.77352.5571
H52.24481.08072.72901.84942.73043.48162.95983.77352.55713.68214.35543.8121
C61.52992.49602.13433.48162.73042.52341.09141.09081.09082.78152.76483.4780
C71.52992.49602.13432.73043.48162.52342.78152.76483.47801.09141.09081.0908
H82.16542.77553.05013.68212.95981.09142.78151.76821.76672.59413.12433.7859
H92.17173.44382.46364.35543.77351.09082.76481.76821.76693.12432.55773.7652
H102.17552.73752.48783.81212.55711.09083.47801.76671.76693.78593.76524.3223
H112.16542.77553.05012.95983.68212.78151.09142.59413.12433.78591.76821.7667
H122.17173.44382.46363.77354.35542.76481.09083.12432.55773.76521.76821.7669
H132.17552.73752.48782.55713.81213.47801.09083.78593.76524.32231.76671.7669

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 120.562 C1 C2 H5 120.562
C1 C6 H8 110.277 C1 C6 H9 110.813
C1 C6 H10 111.120 C1 C7 H11 110.277
C1 C7 H12 110.813 C1 C7 H13 111.120
C2 C1 H3 108.321 C2 C1 C6 111.299
C2 C1 C7 111.299 H3 C1 C6 107.300
H3 C1 C7 107.300 H4 C2 H5 117.659
C6 C1 C7 111.113 H8 C6 H9 108.245
H8 C6 H10 108.114 H9 C6 H10 108.171
H11 C7 H12 108.245 H11 C7 H13 108.114
H12 C7 H13 108.171
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability