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

using model chemistry: MP2=FULL/6-31+G**

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=FULL/6-31+G**
 hartrees
Energy at 0K-157.270497
Energy at 298.15K-157.279175
HF Energy-156.686933
Nuclear repulsion energy122.468720
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=FULL/6-31+G**
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 3259 3061 27.32      
2 A 3218 3023 27.99      
3 A 3213 3018 24.01      
4 A 3212 3017 26.08      
5 A 3155 2963 23.21      
6 A 3124 2934 22.52      
7 A 3119 2929 28.61      
8 A 3066 2880 35.50      
9 A 3043 2858 36.50      
10 A 1551 1457 4.01      
11 A 1546 1452 7.59      
12 A 1537 1443 6.83      
13 A 1523 1431 7.59      
14 A 1520 1428 0.95      
15 A 1471 1381 3.20      
16 A 1457 1369 4.24      
17 A 1446 1358 0.47      
18 A 1351 1269 5.28      
19 A 1303 1224 0.31      
20 A 1220 1146 0.27      
21 A 1174 1102 0.22      
22 A 1110 1042 1.15      
23 A 1068 1003 0.47      
24 A 1013 951 2.03      
25 A 998 937 1.52      
26 A 877 824 0.17      
27 A 792 744 0.78      
28 A 445 418 19.27      
29 A 437 410 8.02      
30 A 268 252 1.61      
31 A 247 232 0.07      
32 A 140 132 0.07      
33 A 72 68 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 26487.1 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 24876.7 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=FULL/6-31+G**
ABC
0.88624 0.12239 0.11521

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.974 -0.049 -0.073
H2 2.057 -0.802 -0.857
H3 2.675 0.753 -0.295
H4 2.306 -0.525 0.858
C5 0.576 0.454 0.038
H6 0.415 1.460 0.404
C7 -0.567 -0.501 0.106
H8 -0.558 -1.021 1.074
H9 -0.425 -1.284 -0.645
C10 -1.926 0.164 -0.091
H11 -2.092 0.931 0.665
H12 -1.984 0.638 -1.069
H13 -2.735 -0.561 -0.016

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 C7 H8 H9 C10 H11 H12 H13
C11.09091.08821.09661.49012.22132.58712.94512.75843.90564.24684.13864.7366
H21.09091.76561.75482.13863.06682.81113.25842.53714.16934.74704.29504.8706
H31.08821.76561.76032.14652.46893.49933.93443.72594.64304.86604.72405.5740
H41.09661.75481.76032.15082.77882.97022.91543.20864.39144.63674.84445.1161
C51.49012.13862.14652.15081.08281.49112.13012.11862.52162.78162.79453.4630
H62.22133.06682.46892.77881.08282.21412.74873.05592.72162.57592.93303.7665
C72.58712.81113.49932.97021.49112.21411.09941.09371.52552.16542.16452.1717
H82.94513.25843.93442.91542.13012.74871.09941.74442.15212.51583.06242.4771
H92.75842.53713.72593.20862.11863.05591.09371.74442.15773.06592.51052.5001
C103.90564.16934.64304.39142.52162.72161.52552.15212.15771.08951.08881.0889
H114.24684.74704.86604.63672.78162.57592.16542.51583.06591.08951.76211.7619
H124.13864.29504.72404.84442.79452.93302.16453.06242.51051.08881.76211.7639
H134.73664.87065.57405.11613.46303.76652.17172.47712.50011.08891.76191.7639

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 118.533 C1 C5 C7 120.412
H2 C1 H3 108.235 H2 C1 H4 106.684
H2 C1 C5 110.963 H3 C1 H4 107.357
H3 C1 C5 111.772 H4 C1 C5 111.599
C5 C7 H8 109.706 C5 C7 H9 109.132
C5 C7 C10 113.414 H6 C5 C7 117.810
C7 C10 H11 110.693 C7 C10 H12 110.663
C7 C10 H13 111.236 H8 C7 H9 105.387
H8 C7 C10 109.062 H9 C7 C10 109.830
H11 C10 H12 107.985 H11 C10 H13 107.957
H12 C10 H13 108.186
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability