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All results from a given calculation for C5H10 (2-Butene, 2-methyl-)

using model chemistry: B2PLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/6-31G*
 hartrees
Energy at 0K-196.276487
Energy at 298.15K-196.286323
HF Energy-196.061413
Nuclear repulsion energy174.152150
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 B2PLYP/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' 3186 3024 44.60      
2 A' 3174 3012 33.24      
3 A' 3161 3001 9.28      
4 A' 3156 2995 14.46      
5 A' 3069 2913 13.11      
6 A' 3065 2909 63.38      
7 A' 3057 2902 25.51      
8 A' 1767 1677 0.70      
9 A' 1550 1471 9.91      
10 A' 1549 1470 1.35      
11 A' 1535 1457 1.28      
12 A' 1472 1398 0.87      
13 A' 1461 1387 0.58      
14 A' 1458 1384 4.76      
15 A' 1407 1335 3.84      
16 A' 1264 1200 4.21      
17 A' 1158 1099 7.79      
18 A' 1093 1038 5.92      
19 A' 993 942 1.50      
20 A' 983 933 1.65      
21 A' 783 743 1.57      
22 A' 529 502 2.08      
23 A' 387 367 0.32      
24 A' 304 289 0.22      
25 A" 3117 2958 29.28      
26 A" 3114 2955 40.16      
27 A" 3109 2951 11.76      
28 A" 1541 1463 16.73      
29 A" 1534 1456 0.88      
30 A" 1522 1445 0.75      
31 A" 1132 1075 0.16      
32 A" 1086 1031 0.67      
33 A" 1043 990 1.90      
34 A" 839 797 11.48      
35 A" 448 426 1.96      
36 A" 265 252 1.34      
37 A" 186 177 1.04      
38 A" 143 136 0.14      
39 A" 120 114 0.50      

Unscaled Zero Point Vibrational Energy (zpe) 30379.2 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 28836.0 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 B2PLYP/6-31G*
ABC
0.26789 0.11685 0.08520

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.508 0.491 0.000
H2 -1.965 -0.500 0.000
H3 -1.876 1.033 0.880
H4 -1.876 1.033 -0.880
C5 0.274 -2.099 0.000
H6 0.656 -2.629 -0.880
H7 0.656 -2.629 0.880
H8 -0.813 -2.193 0.000
C9 0.741 -0.669 0.000
H10 1.825 -0.554 0.000
C11 0.000 0.450 0.000
C12 0.652 1.813 0.000
H13 1.743 1.739 0.000
H14 0.349 2.393 0.880
H15 0.349 2.393 -0.880

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 H8 C9 H10 C11 C12 H13 H14 H15
C11.09101.09631.09633.14463.89843.89842.77312.53133.49361.50912.53283.48252.80012.8001
H21.09101.76891.76892.75193.48993.48992.04822.71123.79042.18253.49244.33123.80733.8073
H31.09631.76891.75923.89954.78724.45223.50853.24354.12202.15252.78843.79082.60823.1462
H41.09631.76891.75923.89954.45224.78723.50853.24354.12202.15252.78843.79083.14622.6082
C53.14462.75193.89953.89951.09581.09581.09161.50382.18892.56413.93034.10964.57804.5780
H63.89843.48994.78724.45221.09581.75961.76712.15002.53923.26934.52864.58695.33055.0317
H73.89843.48994.45224.78721.09581.75961.76712.15002.53923.26934.52864.58695.03175.3305
H82.77312.04823.50853.50851.09161.76711.76712.17653.10602.76584.26584.69014.81234.8123
C92.53132.71123.24353.24351.50382.15002.15002.17651.09021.34272.48412.60883.21033.2103
H103.49363.79044.12204.12202.18892.53922.53923.10601.09022.08312.64182.29493.41153.4115
C111.50912.18252.15252.15252.56413.26933.26932.76581.34272.08311.51072.16762.16102.1610
C122.53283.49242.78842.78843.93034.52864.52864.26582.48412.64181.51071.09311.09661.0966
H133.48254.33123.79083.79084.10964.58694.58694.69012.60882.29492.16761.09311.77321.7732
H142.80013.80732.60823.14624.57805.33055.03174.81233.21033.41152.16101.09661.77321.7599
H152.80013.80733.14622.60824.57805.03175.33054.81233.21033.41152.16101.09661.77321.7599

picture of 2-Butene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C11 C9 125.051 C1 C11 C12 114.014
H2 C1 H3 107.940 H2 C1 H4 107.940
H2 C1 C11 113.175 H3 C1 H4 106.709
H3 C1 C11 110.412 H4 C1 C11 110.412
C5 C9 H10 114.148 C5 C9 C11 128.434
H6 C5 H7 106.808 H6 C5 H8 107.771
H6 C5 C9 110.607 H7 C5 H8 107.771
H7 C5 C9 110.607 H8 C5 C9 113.022
C9 C11 C12 120.936 H10 C9 C11 117.419
C11 C12 H13 111.704 C11 C12 H14 110.962
C11 C12 H15 110.962 H13 C12 H14 108.146
H13 C12 H15 108.146 H14 C12 H15 106.729
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.515      
2 H 0.162      
3 H 0.158      
4 H 0.158      
5 C -0.500      
6 H 0.160      
7 H 0.160      
8 H 0.159      
9 C -0.177      
10 H 0.135      
11 C 0.139      
12 C -0.508      
13 H 0.159      
14 H 0.155      
15 H 0.155      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.007 -1.036 0.000
y -1.036 10.100 0.000
z 0.000 0.000 5.651


<r2> (average value of r2) Å2
<r2> 151.313
(<r2>)1/2 12.301