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All results from a given calculation for C5H10 (1-Butene, 2-methyl-)

using model chemistry: HF/CEP-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 HF/CEP-31G
 hartrees
Energy at 0K-33.154187
Energy at 298.15K-33.164567
Nuclear repulsion energy98.329296
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 HF/CEP-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 3405 3069 49.94      
2 A 3328 3000 23.54      
3 A 3300 2975 74.00      
4 A 3293 2969 96.10      
5 A 3282 2958 120.91      
6 A 3267 2945 57.13      
7 A 3260 2938 18.17      
8 A 3212 2895 56.34      
9 A 3201 2885 66.89      
10 A 3200 2885 53.35      
11 A 1847 1665 28.39      
12 A 1645 1483 5.87      
13 A 1637 1476 8.25      
14 A 1635 1474 13.19      
15 A 1628 1467 11.08      
16 A 1618 1459 7.91      
17 A 1583 1427 1.34      
18 A 1560 1406 4.31      
19 A 1555 1402 3.62      
20 A 1488 1341 1.94      
21 A 1432 1291 2.83      
22 A 1383 1246 1.18      
23 A 1219 1099 0.47      
24 A 1201 1083 5.26      
25 A 1154 1040 3.23      
26 A 1106 997 1.92      
27 A 1094 986 0.70      
28 A 1067 962 89.78      
29 A 1013 913 0.31      
30 A 866 781 2.15      
31 A 822 741 1.02      
32 A 777 701 0.13      
33 A 573 516 11.27      
34 A 453 408 1.54      
35 A 413 373 1.09      
36 A 272 246 0.76      
37 A 230 208 0.52      
38 A 181 163 0.29      
39 A 62 56 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 32130.9 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 28962.8 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 HF/CEP-31G
ABC
0.23603 0.12217 0.09304

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.058 1.312 0.023
H2 0.466 1.872 -0.702
H3 2.103 1.384 -0.271
H4 0.940 1.807 0.989
C5 -1.908 0.093 -0.406
H6 -1.855 1.169 -0.570
H7 -2.904 -0.135 -0.025
H8 -1.791 -0.402 -1.371
C9 -0.824 -0.391 0.593
H10 -0.961 -1.455 0.779
H11 -0.970 0.121 1.547
C12 0.603 -0.142 0.107
C13 1.428 -1.165 -0.227
H14 1.106 -2.195 -0.159
H15 2.437 -0.992 -0.573

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 H8 C9 H10 H11 C12 C13 H14 H15
C11.09101.08781.09213.23532.97634.21863.60562.60163.50792.80281.52612.51673.51202.7500
H21.09101.76231.75812.98072.42803.98013.27262.90873.91093.19162.17493.22054.15253.4786
H31.08781.76231.76624.21563.97505.23834.42313.53064.30693.78742.17272.63693.71652.4176
H41.09211.75811.76623.60523.26374.42514.23232.84643.78172.60852.16633.24804.16683.5374
C53.23532.98074.21563.60521.09011.09091.09061.55122.16682.16702.57383.56893.79204.4807
H62.97632.42803.97503.26371.09011.76061.76462.20213.08292.52312.86744.04224.50064.8048
H74.21863.98015.23834.42511.09091.76061.76672.18492.48252.50593.51014.45694.51055.4367
H83.60563.27264.42314.23231.09061.76461.76672.18922.53373.07642.82593.50013.61664.3427
C92.60162.90873.53062.84641.55122.20212.18492.18921.08871.09251.52862.51832.74713.5148
H103.50793.91094.30693.78172.16683.08292.48252.53371.08871.75302.15012.60822.38793.6862
H112.80283.19163.78742.60852.16702.52312.50593.07641.09251.75302.14933.24793.54744.1638
C121.52612.17492.17272.16632.57382.86743.51012.82591.52862.15012.14931.35502.12992.1316
C132.51673.22052.63693.24803.56894.04224.45693.50012.51832.60823.24791.35501.08121.0807
H143.51204.15253.71654.16683.79204.50064.51053.61662.74712.38793.54742.12991.08121.8410
H152.75003.47862.41763.53744.48074.80485.43674.34273.51483.68624.16382.13161.08071.8410

picture of 1-Butene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C12 C9 116.789 C1 C12 C13 121.626
H2 C1 H3 107.959 H2 C1 H4 107.275
H2 C1 C12 111.316 H3 C1 H4 108.232
H3 C1 C12 111.334 H4 C1 C12 110.568
C5 C9 H10 109.074 C5 C9 H11 108.869
C5 C9 C12 113.378 H6 C5 H7 107.649
H6 C5 H8 108.036 H6 C5 C9 111.778
H7 C5 H8 108.162 H7 C5 C9 110.359
H8 C5 C9 110.722 C9 C12 C13 121.584
H10 C9 H11 106.965 H10 C9 C12 109.317
H11 C9 C12 109.039 C12 C13 H14 121.514
C12 C13 H15 121.727 H14 C13 H15 116.760
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.387      
2 H 0.108      
3 H 0.138      
4 H 0.105      
5 C -0.374      
6 H 0.103      
7 H 0.122      
8 H 0.111      
9 C -0.111      
10 H 0.116      
11 H 0.076      
12 C 0.230      
13 C -0.587      
14 H 0.171      
15 H 0.178      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.461 0.467 0.119 0.666
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.438 0.796 -1.057
y 0.796 -32.729 0.239
z -1.057 0.239 -35.041
Traceless
 xyz
x 0.447 0.796 -1.057
y 0.796 1.511 0.239
z -1.057 0.239 -1.958
Polar
3z2-r2-3.915
x2-y2-0.709
xy0.796
xz-1.057
yz0.239


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.450 -1.338 -0.620
y -1.338 8.484 0.463
z -0.620 0.463 5.782


<r2> (average value of r2) Å2
<r2> 122.693
(<r2>)1/2 11.077