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

using model chemistry: BLYP/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 BLYP/6-31G
 hartrees
Energy at 0K-196.371026
Energy at 298.15K-196.380802
Nuclear repulsion energy172.338023
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 BLYP/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 3066 3043 66.81      
2 A 3058 3035 39.76      
3 A 3043 3020 9.29      
4 A 3039 3016 14.19      
5 A 2947 2925 16.79      
6 A 2944 2921 96.71      
7 A 2938 2915 31.43      
8 A 1693 1680 0.67      
9 A 1507 1496 10.50      
10 A 1505 1494 1.38      
11 A 1492 1480 1.51      
12 A 1431 1420 1.20      
13 A 1422 1411 2.23      
14 A 1411 1400 2.72      
15 A 1382 1372 4.89      
16 A 1216 1207 5.92      
17 A 1123 1115 11.57      
18 A 1064 1056 7.01      
19 A 965 958 0.80      
20 A 952 945 2.88      
21 A 753 747 1.81      
22 A 523 519 2.13      
23 A 381 378 0.39      
24 A 297 295 0.18      
25 A 2986 2963 80.28      
26 A 2984 2962 20.22      
27 A 2981 2958 10.78      
28 A 1499 1487 18.75      
29 A 1493 1482 1.01      
30 A 1483 1472 1.21      
31 A 1108 1100 1.69      
32 A 1063 1055 0.14      
33 A 1021 1013 1.87      
34 A 826 820 13.05      
35 A 443 440 2.44      
36 A 257 255 1.58      
37 A 184 183 1.23      
38 A 153 152 0.10      
39 A 121 120 0.82      

Unscaled Zero Point Vibrational Energy (zpe) 29377.4 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 29154.1 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 BLYP/6-31G
ABC
0.26221 0.11441 0.08340

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.523 0.500 0.000
H2 -1.986 -0.498 0.000
H3 -1.899 1.047 0.886
H4 -1.899 1.047 -0.886
C5 0.269 -2.118 0.000
H6 0.651 -2.661 -0.886
H7 0.651 -2.661 0.886
H8 -0.828 -2.212 0.000
C9 0.744 -0.679 0.000
H10 1.837 -0.563 0.000
C11 0.000 0.457 0.000
C12 0.670 1.827 0.000
H13 1.769 1.746 0.000
H14 0.370 2.419 0.887
H15 0.370 2.419 -0.887

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 H8 C9 H10 C11 C12 H13 H14 H15
C11.10001.10741.10743.17293.93743.93742.79942.55563.52451.52362.56303.51992.83822.8382
H21.10001.78301.78302.77713.52393.52392.06852.73643.82402.20343.52964.37443.85353.8535
H31.10741.78301.77303.93764.83664.49993.54273.27914.16402.17742.82733.83802.65243.1906
H41.10741.78301.77303.93764.49994.83663.54273.27914.16402.17742.82733.83803.19062.6524
C53.17292.77713.93763.93761.10721.10721.10121.51542.20852.58883.96564.14494.62454.6245
H63.93743.52394.83664.49991.10721.77291.78162.17312.56823.30584.57494.63235.38835.0881
H73.93743.52394.49994.83661.10721.77291.78162.17312.56823.30584.57494.63235.08815.3883
H82.79942.06853.54273.54271.10121.78161.78162.19563.13402.79374.30764.73364.86514.8651
C92.55562.73643.27913.27911.51542.17312.17312.19561.09921.35792.50742.63273.24453.2445
H103.52453.82404.16404.16402.20852.56822.56823.13401.09922.10132.66012.30993.43993.4399
C111.52362.20342.17742.17742.58883.30583.30582.79371.35792.10131.52552.18912.18552.1855
C122.56303.52962.82732.82733.96564.57494.57494.30762.50742.66011.52551.10241.10761.1076
H133.51994.37443.83803.83804.14494.63234.63234.73362.63272.30992.18911.10241.78781.7878
H142.83823.85352.65243.19064.62455.38835.08814.86513.24453.43992.18551.10761.78781.7737
H152.83823.85353.19062.65244.62455.08815.38834.86513.24453.43992.18551.10761.78781.7737

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 124.877 C1 C11 C12 114.406
H2 C1 H3 107.748 H2 C1 H4 107.748
H2 C1 C11 113.261 H3 C1 H4 106.364
H3 C1 C11 110.709 H4 C1 C11 110.709
C5 C9 H10 114.335 C5 C9 C11 128.488
H6 C5 H7 106.372 H6 C5 H8 107.554
H6 C5 C9 110.952 H7 C5 H8 107.554
H7 C5 C9 110.952 H8 C5 C9 113.142
C9 C11 C12 120.718 H10 C9 C11 117.177
C11 C12 H13 111.815 C11 C12 H14 111.211
C11 C12 H15 111.211 H13 C12 H14 107.989
H13 C12 H15 107.989 H14 C12 H15 106.393
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.436      
2 H 0.126      
3 H 0.127      
4 H 0.127      
5 C -0.417      
6 H 0.128      
7 H 0.128      
8 H 0.125      
9 C -0.106      
10 H 0.080      
11 C 0.179      
12 C -0.433      
13 H 0.123      
14 H 0.124      
15 H 0.124      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.197 0.055 0.000 0.204
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.436 -0.281 0.000
y -0.281 -31.965 0.000
z 0.000 0.000 -34.262
Traceless
 xyz
x 0.677 -0.281 0.000
y -0.281 1.384 0.000
z 0.000 0.000 -2.061
Polar
3z2-r2-4.123
x2-y2-0.471
xy-0.281
xz0.000
yz0.000


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> 154.128
(<r2>)1/2 12.415