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

using model chemistry: CID/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 CID/6-31G*
 hartrees
Energy at 0K-195.733676
Energy at 298.15K-195.743604
HF Energy-195.145537
Nuclear repulsion energy174.815569
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 CID/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 3277 3027 40.01      
2 A 3261 3012 33.84      
3 A 3250 3002 8.12      
4 A 3241 2994 15.37      
5 A 3154 2913 8.46      
6 A 3149 2909 63.02      
7 A 3142 2902 22.63      
8 A 1869 1726 0.91      
9 A 1597 1475 5.44      
10 A 1595 1473 7.79      
11 A 1581 1460 1.58      
12 A 1525 1409 1.51      
13 A 1517 1401 2.50      
14 A 1513 1398 4.77      
15 A 1457 1346 2.71      
16 A 1311 1211 3.04      
17 A 1199 1108 6.39      
18 A 1130 1044 4.83      
19 A 1028 949 1.82      
20 A 1018 940 1.19      
21 A 811 749 1.41      
22 A 546 504 1.98      
23 A 402 371 0.33      
24 A 314 290 0.21      
25 A 3206 2962 32.77      
26 A 3204 2959 40.42      
27 A 3199 2955 7.12      
28 A 1587 1466 18.39      
29 A 1579 1459 0.94      
30 A 1568 1448 0.84      
31 A 1173 1084 0.03      
32 A 1131 1045 1.59      
33 A 1077 994 2.24      
34 A 876 809 12.58      
35 A 469 433 2.53      
36 A 274 253 1.50      
37 A 185 171 0.93      
38 A 128 119 0.29      
39 A 106 98 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 31323.2 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 28933.2 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 CID/6-31G*
ABC
0.26980 0.11767 0.08581

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.504 0.495 0.000
H2 -1.966 -0.487 0.000
H3 -1.865 1.037 0.876
H4 -1.865 1.037 -0.876
C5 0.270 -2.092 0.000
H6 0.651 -2.618 -0.876
H7 0.651 -2.618 0.876
H8 -0.812 -2.189 0.000
C9 0.733 -0.665 0.000
H10 1.812 -0.548 0.000
C11 0.000 0.446 0.000
C12 0.657 1.801 0.000
H13 1.742 1.722 0.000
H14 0.357 2.379 0.877
H15 0.357 2.379 -0.877

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 H8 C9 H10 C11 C12 H13 H14 H15
C11.08531.09161.09163.13593.88603.88602.77152.51973.47541.50452.52483.47042.78942.7894
H21.08531.76061.76062.75213.48723.48722.05652.70533.77842.17643.48084.31693.79203.7920
H31.09161.76061.75233.88704.77064.43703.50443.22704.09812.14342.77703.77492.59593.1323
H41.09161.76061.75233.88704.43704.77063.50443.22704.09812.14342.77703.77493.13232.5959
C53.13592.75213.88703.88701.09121.09121.08611.49972.18202.55173.91154.08844.55604.5560
H63.88603.48724.77064.43701.09121.75261.75872.14202.52993.25274.50484.56055.30335.0052
H73.88603.48724.43704.77061.09121.75261.75872.14202.52993.25274.50484.56055.00525.3033
H82.77152.05653.50443.50441.08611.75871.75872.17013.09472.75724.25164.67174.79574.7957
C92.51972.70533.22703.22701.49972.14202.14202.17011.08491.33122.46712.59223.18973.1897
H103.47543.77844.09814.09812.18202.52992.52993.09471.08492.06622.61682.27123.38323.3832
C111.50452.17642.14342.14342.55173.25273.25272.75721.33122.06621.50572.15992.15202.1520
C122.52483.48082.77702.77703.91154.50484.50484.25162.46712.61681.50571.08801.09191.0919
H133.47044.31693.77493.77494.08844.56054.56054.67172.59222.27122.15991.08801.76551.7655
H142.78943.79202.59593.13234.55605.30335.00524.79573.18973.38322.15201.09191.76551.7533
H152.78943.79203.13232.59594.55605.00525.30334.79573.18973.38322.15201.09191.76551.7533

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 125.277 C1 C11 C12 114.014
H2 C1 H3 107.941 H2 C1 H4 107.941
H2 C1 C11 113.367 H3 C1 H4 106.760
H3 C1 C11 110.288 H4 C1 C11 110.288
C5 C9 H10 114.218 C5 C9 C11 128.583
H6 C5 H7 106.846 H6 C5 H8 107.758
H6 C5 C9 110.537 H7 C5 H8 107.758
H7 C5 C9 110.537 H8 C5 C9 113.151
C9 C11 C12 120.709 H10 C9 C11 117.199
C11 C12 H13 111.751 C11 C12 H14 110.877
C11 C12 H15 110.877 H13 C12 H14 108.171
H13 C12 H15 108.171 H14 C12 H15 106.808
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability