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All results from a given calculation for CH3CHCH2CH3 (2-Butyl radical)

using model chemistry: MP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-157.296126
Energy at 298.15K-157.304733
HF Energy-156.711039
Nuclear repulsion energy122.074655
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 MP2/6-311G**
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 3208 3049 26.81      
2 A 3167 3010 27.54      
3 A 3162 3005 30.06      
4 A 3160 3003 20.07      
5 A 3106 2952 24.79      
6 A 3079 2926 22.54      
7 A 3074 2921 24.97      
8 A 3022 2872 33.58      
9 A 3003 2853 34.02      
10 A 1527 1451 3.54      
11 A 1519 1443 6.96      
12 A 1510 1435 5.77      
13 A 1498 1424 7.47      
14 A 1491 1416 0.78      
15 A 1443 1371 2.63      
16 A 1427 1356 4.55      
17 A 1415 1345 0.80      
18 A 1325 1259 5.64      
19 A 1290 1225 0.13      
20 A 1201 1141 0.32      
21 A 1159 1101 0.13      
22 A 1093 1039 1.03      
23 A 1057 1004 0.56      
24 A 997 947 2.41      
25 A 980 932 1.52      
26 A 866 823 0.20      
27 A 782 743 0.84      
28 A 436 414 11.49      
29 A 429 408 9.38      
30 A 262 249 1.03      
31 A 246 234 0.01      
32 A 131 125 0.08      
33 A 62 58 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 26063.7 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 24765.7 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 MP2/6-311G**
ABC
0.87996 0.12176 0.11455

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.980 -0.047 -0.069
H2 2.063 -0.827 -0.835
H3 2.680 0.754 -0.318
H4 2.317 -0.496 0.879
C5 0.576 0.454 0.032
H6 0.410 1.464 0.399
C7 -0.569 -0.506 0.101
H8 -0.556 -1.031 1.072
H9 -0.430 -1.288 -0.657
C10 -1.931 0.166 -0.087
H11 -2.094 0.925 0.685
H12 -1.984 0.659 -1.062
H13 -2.745 -0.562 -0.025

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 C7 H8 H9 C10 H11 H12 H13
C11.09571.09321.10151.49462.22892.59502.94932.77373.91654.25614.14684.7530
H21.09571.77421.76352.14613.08292.81193.24592.54204.18324.76094.31744.8834
H31.09321.77421.76822.15442.48433.50993.94843.73654.65424.88194.72425.5903
H41.10151.76351.76822.15712.77632.98872.92853.24574.40624.63874.85775.1425
C51.49462.14612.15442.15711.08711.49552.13742.12672.52582.78892.79083.4731
H62.22893.08292.48432.77631.08712.21982.75883.06542.72042.57792.91783.7732
C72.59502.81193.50992.98871.49552.21981.10381.09831.53042.17152.17062.1807
H82.94933.24593.94842.92852.13742.75881.10381.75252.16032.51873.07372.4933
H92.77372.54203.73653.24572.12673.06541.09831.75252.16623.07712.52362.5073
C103.91654.18324.65424.40622.52582.72041.53042.16032.16621.09441.09361.0937
H114.25614.76094.88194.63872.78892.57792.17152.51873.07711.09441.77001.7707
H124.14684.31744.72424.85772.79082.91782.17063.07372.52361.09361.77001.7730
H134.75304.88345.59035.14253.47313.77322.18072.49332.50731.09371.77071.7730

picture of 2-Butyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 118.539 C1 C5 C7 120.426
H2 C1 H3 108.297 H2 C1 H4 106.756
H2 C1 C5 110.957 H3 C1 H4 107.342
H3 C1 C5 111.783 H4 C1 C5 111.482
C5 C7 H8 109.717 C5 C7 H9 109.196
C5 C7 C10 113.167 H6 C5 C7 117.655
C7 C10 H11 110.549 C7 C10 H12 110.519
C7 C10 H13 111.319 H8 C7 H9 105.468
H8 C7 C10 109.115 H9 C7 C10 109.891
H11 C10 H12 107.989 H11 C10 H13 108.045
H12 C10 H13 108.309
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability