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

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-196.434816
Energy at 298.15K-196.444530
Nuclear repulsion energy174.612059
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 B1B95/6-31+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 3166 3029 49.12      
2 A 3159 3022 22.06      
3 A 3145 3008 14.59      
4 A 3142 3005 11.27      
5 A 3046 2914 18.28      
6 A 3043 2911 71.91      
7 A 3037 2905 31.73      
8 A 1764 1687 1.89      
9 A 1494 1429 13.61      
10 A 1490 1426 3.31      
11 A 1476 1412 2.90      
12 A 1415 1353 5.28      
13 A 1413 1352 2.09      
14 A 1406 1345 8.63      
15 A 1359 1300 2.22      
16 A 1240 1186 4.43      
17 A 1133 1084 10.15      
18 A 1065 1018 6.53      
19 A 963 921 3.87      
20 A 952 911 0.53      
21 A 781 747 1.90      
22 A 518 496 2.25      
23 A 367 351 0.39      
24 A 278 266 0.19      
25 A 3099 2965 17.02      
26 A 3097 2962 27.14      
27 A 3095 2960 19.69      
28 A 1487 1423 24.09      
29 A 1480 1416 1.45      
30 A 1468 1404 0.90      
31 A 1094 1046 0.01      
32 A 1054 1008 1.77      
33 A 1008 964 3.24      
34 A 825 789 14.59      
35 A 447 428 3.70      
36 A 262 251 2.22      
37 A 182 174 1.60      
38 A 134 129 0.06      
39 A 117 112 1.06      

Unscaled Zero Point Vibrational Energy (zpe) 29849.7 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 28554.2 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 B1B95/6-31+G**
ABC
0.26959 0.11756 0.08575

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.501 0.494 0.000
H2 -1.962 -0.494 0.000
H3 -1.869 1.037 0.878
H4 -1.869 1.037 -0.878
C5 0.264 -2.090 0.000
H6 0.643 -2.625 -0.878
H7 0.643 -2.625 0.878
H8 -0.823 -2.181 0.000
C9 0.735 -0.670 0.000
H10 1.818 -0.548 0.000
C11 0.000 0.451 0.000
C12 0.660 1.801 0.000
H13 1.749 1.720 0.000
H14 0.361 2.385 0.878
H15 0.361 2.385 -0.878

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 H8 C9 H10 C11 C12 H13 H14 H15
C11.08961.09601.09603.12893.88463.88462.75972.52033.47801.50122.52513.47292.79542.7954
H21.08961.76661.76662.73923.47803.47802.03632.70233.77992.17723.48384.32053.80163.8016
H31.09601.76661.75603.88544.77474.44013.49583.23464.10762.14622.78353.78462.60583.1425
H41.09601.76661.75603.88544.44014.77473.49583.23464.10762.14622.78353.78463.14252.6058
C53.12892.73923.88543.88541.09551.09551.09061.49572.18892.55463.91124.08904.56144.5614
H63.88463.47804.77474.44011.09551.75581.76472.14482.54273.26274.51244.56885.31635.0178
H73.88463.47804.44014.77471.09551.75581.76472.14482.54273.26274.51244.56885.01785.3163
H82.75972.03633.49583.49581.09061.76471.76472.17003.10472.75784.24944.67254.79834.7983
C92.52032.70233.23463.23461.49572.14482.14482.17001.08991.34052.47262.59653.20093.2009
H103.47803.77994.10764.10762.18892.54272.54273.10471.08992.07422.61922.26923.39063.3906
C111.50122.17722.14622.14622.55463.26273.26272.75781.34052.07421.50272.16062.15462.1546
C122.52513.48382.78352.78353.91124.51244.51244.24942.47262.61921.50271.09201.09621.0962
H133.47294.32053.78463.78464.08904.56884.56884.67252.59652.26922.16061.09201.77181.7718
H142.79543.80162.60583.14254.56145.31635.01784.79833.20093.39062.15461.09621.77181.7570
H152.79543.80163.14252.60584.56145.01785.31634.79833.20093.39062.15461.09621.77181.7570

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 124.872 C1 C11 C12 114.406
H2 C1 H3 107.857 H2 C1 H4 107.857
H2 C1 C11 113.405 H3 C1 H4 106.471
H3 C1 C11 110.482 H4 C1 C11 110.482
C5 C9 H10 114.777 C5 C9 C11 128.423
H6 C5 H7 106.521 H6 C5 H8 107.654
H6 C5 C9 110.787 H7 C5 H8 107.654
H7 C5 C9 110.787 H8 C5 C9 113.145
C9 C11 C12 120.723 H10 C9 C11 116.801
C11 C12 H13 111.780 C11 C12 H14 111.033
C11 C12 H15 111.033 H13 C12 H14 108.130
H13 C12 H15 108.130 H14 C12 H15 106.524
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.673      
2 H 0.148      
3 H 0.164      
4 H 0.164      
5 C -0.702      
6 H 0.165      
7 H 0.165      
8 H 0.148      
9 C -0.037      
10 H 0.128      
11 C 0.449      
12 C -0.597      
13 H 0.156      
14 H 0.161      
15 H 0.161      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.203 0.052 0.000 0.209
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.575 -0.356 0.000
y -0.356 -32.260 0.000
z 0.000 0.000 -34.626
Traceless
 xyz
x 0.868 -0.356 0.000
y -0.356 1.341 0.000
z 0.000 0.000 -2.209
Polar
3z2-r2-4.417
x2-y2-0.316
xy-0.356
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.058 -1.129 0.000
y -1.129 11.367 0.000
z 0.000 0.000 6.909


<r2> (average value of r2) Å2
<r2> 150.690
(<r2>)1/2 12.276