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All results from a given calculation for C5H11 (2-Methylbut-2-yl radical)

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-196.996005
Energy at 298.15K-197.006719
Nuclear repulsion energy181.247032
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 B3PW91/6-31G
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 3140 3008 41.75      
2 A 3136 3004 34.62      
3 A 3126 2994 44.51      
4 A 3117 2986 25.24      
5 A 3076 2946 30.80      
6 A 3065 2935 34.01      
7 A 3056 2927 19.47      
8 A 3053 2924 34.84      
9 A 2964 2839 70.42      
10 A 2956 2831 40.31      
11 A 2934 2810 44.72      
12 A 1550 1484 4.48      
13 A 1544 1478 8.40      
14 A 1536 1471 4.00      
15 A 1527 1462 7.66      
16 A 1526 1461 18.02      
17 A 1514 1450 2.28      
18 A 1512 1448 1.89      
19 A 1460 1398 2.84      
20 A 1451 1390 9.10      
21 A 1440 1379 6.18      
22 A 1405 1346 0.90      
23 A 1334 1278 2.33      
24 A 1315 1260 8.75      
25 A 1278 1224 4.55      
26 A 1134 1086 0.68      
27 A 1089 1043 3.98      
28 A 1068 1023 5.61      
29 A 1029 986 2.23      
30 A 1012 969 2.24      
31 A 973 931 0.48      
32 A 960 919 0.29      
33 A 797 763 2.86      
34 A 746 714 1.37      
35 A 459 439 1.30      
36 A 384 368 0.02      
37 A 311 298 2.28      
38 A 269 258 0.45      
39 A 202 193 1.48      
40 A 123 118 0.04      
41 A 109 104 0.04      
42 A 29 28 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 32355.0 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 30986.4 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 B3PW91/6-31G
ABC
0.24193 0.11354 0.08447

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.645 1.482 0.067
H2 0.243 2.020 -0.286
H3 -1.509 1.856 -0.497
H4 -0.800 1.787 1.120
C5 2.061 -0.037 -0.221
H6 2.208 0.975 0.171
H7 2.940 -0.629 0.058
H8 2.029 0.027 -1.315
C9 0.778 -0.682 0.327
H10 0.739 -1.732 0.003
H11 0.856 -0.722 1.433
C12 -0.507 -0.004 -0.072
C13 -1.756 -0.830 -0.140
H14 -1.559 -1.828 -0.551
H15 -2.211 -0.983 0.857
H16 -2.524 -0.351 -0.761

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 H8 C9 H10 H11 C12 C13 H14 H15 H16
C11.09621.09681.10683.11732.90034.16103.34362.60323.49982.99601.49902.57343.48953.02532.7520
H21.09621.77161.76542.74632.27253.79612.86722.82133.79483.29322.16823.48344.25714.04253.6736
H31.09681.77161.76694.05013.87805.12604.06543.51394.26253.99482.15482.72043.68473.22252.4429
H41.10681.76541.76693.64853.25694.57734.12653.03523.99943.02192.17103.05784.05443.11993.3287
C53.11732.74634.05013.64851.09561.09591.09601.53692.16092.15832.57223.89924.05254.50654.6269
H62.90032.27253.87803.25691.09561.76661.77212.19403.08432.50992.89604.36674.75114.88205.0016
H74.16103.79615.12604.57731.09591.76661.77402.17942.46292.49873.50544.70454.69625.22495.5318
H83.34362.86724.06544.12651.09601.77211.77402.18242.54803.08022.82384.05424.11074.86964.6012
C92.60322.82133.51393.03521.53692.19402.17942.18241.09961.10911.50632.58092.74753.05073.4921
H103.49983.79484.26253.99942.16093.08432.46292.54801.09961.75452.13102.65632.36563.16093.6238
H112.99603.29323.99483.02192.15832.50992.49873.08021.10911.75452.15293.05053.31523.13124.0460
C121.49902.16822.15482.17102.57222.89603.50542.82381.50632.13102.15291.49932.16022.17412.1596
C132.57343.48342.72043.05783.89924.36674.70454.05422.58092.65633.05051.49931.09731.10681.0975
H143.48954.25713.68474.05444.05254.75114.69624.11072.74752.36563.31522.16021.09731.76681.7769
H153.02534.04253.22253.11994.50654.88205.22494.86963.05073.16093.13122.17411.10681.76681.7652
H162.75203.67362.44293.32874.62695.00165.53184.60123.49213.62384.04602.15961.09751.77691.7652

picture of 2-Methylbut-2-yl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C12 C9 120.038 C1 C12 C13 118.247
H2 C1 H3 107.767 H2 C1 H4 106.517
H2 C1 C12 112.397 H3 C1 H4 106.603
H3 C1 C12 111.269 H4 C1 C12 111.962
C5 C9 H10 108.962 C5 C9 H11 108.220
C5 C9 C12 115.386 H6 C5 H7 107.429
H6 C5 H8 107.916 H6 C5 C9 111.807
H7 C5 H8 108.055 H7 C5 C9 110.624
H8 C5 C9 110.854 C9 C12 C13 118.345
H10 C9 H11 105.194 H10 C9 C12 108.718
H11 C9 C12 109.873 C12 C13 H14 111.659
C12 C13 H15 112.200 C12 C13 H16 111.598
H14 C13 H15 106.560 H14 C13 H16 108.106
H15 C13 H16 106.409
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.533      
2 H 0.168      
3 H 0.161      
4 H 0.159      
5 C -0.477      
6 H 0.158      
7 H 0.155      
8 H 0.162      
9 C -0.348      
10 H 0.156      
11 H 0.154      
12 C 0.134      
13 C -0.532      
14 H 0.161      
15 H 0.160      
16 H 0.161      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.040 -0.003 0.231 0.235
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.514 -0.132 0.147
y -0.132 -33.385 0.047
z 0.147 0.047 -34.347
Traceless
 xyz
x 0.353 -0.132 0.147
y -0.132 0.546 0.047
z 0.147 0.047 -0.898
Polar
3z2-r2-1.797
x2-y2-0.129
xy-0.132
xz0.147
yz0.047


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 156.567
(<r2>)1/2 12.513