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All results from a given calculation for CH2CHCH2CH2CH3 (1-pentene)

using model chemistry: mPW1PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/STO-3G
 hartrees
Energy at 0K-194.150339
Energy at 298.15K-194.160288
Nuclear repulsion energy168.561657
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 mPW1PW91/STO-3G
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 3593 3158 0.03      
2 A 3533 3105 2.53      
3 A 3532 3104 1.36      
4 A 3503 3078 2.30      
5 A 3489 3067 1.26      
6 A 3480 3059 1.56      
7 A 3437 3021 19.19      
8 A 3391 2980 4.55      
9 A 3372 2964 1.06      
10 A 3357 2951 2.33      
11 A 1893 1664 2.22      
12 A 1711 1504 3.07      
13 A 1701 1495 4.06      
14 A 1690 1485 0.51      
15 A 1671 1469 1.74      
16 A 1595 1402 1.15      
17 A 1592 1399 0.20      
18 A 1540 1353 1.08      
19 A 1446 1271 0.11      
20 A 1439 1265 1.82      
21 A 1411 1240 7.50      
22 A 1387 1219 0.16      
23 A 1299 1142 1.18      
24 A 1223 1075 1.77      
25 A 1165 1024 0.47      
26 A 1135 997 4.16      
27 A 1122 986 3.12      
28 A 1038 912 1.70      
29 A 1014 891 19.03      
30 A 977 859 4.73      
31 A 956 840 0.44      
32 A 809 711 6.16      
33 A 680 598 4.85      
34 A 450 396 0.89      
35 A 397 349 0.07      
36 A 245 216 0.10      
37 A 236 207 0.09      
38 A 102 89 0.01      
39 A 89 78 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 33348.8 cm-1
Scaled (by 0.8789) Zero Point Vibrational Energy (zpe) 29310.2 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 mPW1PW91/STO-3G
ABC
0.59476 0.06964 0.06855

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/STO-3G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.487 -0.222 -0.308
C2 1.433 0.349 0.270
C3 0.073 -0.318 0.446
C4 -1.060 0.458 -0.285
C5 -2.442 -0.202 -0.083
H6 3.442 0.300 -0.414
H7 2.447 -1.242 -0.702
H8 1.508 1.376 0.652
H9 0.116 -1.350 0.067
H10 -0.173 -0.369 1.521
H11 -1.088 1.493 0.090
H12 -0.829 0.507 -1.360
H13 -3.221 0.365 -0.608
H14 -2.442 -1.229 -0.471
H15 -2.702 -0.239 0.983

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C11.33062.53103.61124.93371.09341.09382.10492.65253.23093.98513.55415.74565.03295.3473
C21.33061.52512.55593.92942.12252.12201.09802.15922.15822.77442.79224.73594.24864.2372
C32.53101.52511.55542.57203.53162.79462.22971.10011.10342.18042.18073.52502.82722.8275
C43.61122.55591.55541.54504.50603.91962.88332.18512.17501.10091.10072.18722.18882.1890
C54.93373.92942.57201.54505.91415.03654.31642.80702.78342.17602.17621.09771.09761.0977
H61.09342.12253.53164.50605.91411.85702.45563.74384.15384.71154.37896.66576.07906.3238
H71.09382.12202.79463.91965.03651.85703.09242.45763.54474.53943.77165.89224.89455.5101
H82.10491.09802.22972.88334.31642.45563.09243.11602.57372.65933.20364.99744.86274.5218
H92.65252.15921.10012.18512.80703.74382.45763.11601.77723.08732.52533.81162.61623.1643
H103.23092.15821.10342.17502.78344.15383.54472.57371.77722.52013.08153.78983.13952.5894
H113.98512.77442.18041.10092.17604.71154.53942.65933.08732.52011.77252.51163.09102.5302
H123.55412.79222.18071.10072.17624.37893.77163.20362.52533.08151.77252.51132.53063.0912
H135.74564.73593.52502.18721.09776.66575.89224.99743.81163.78982.51162.51131.77911.7793
H145.03294.24862.82722.18881.09766.07904.89454.86272.61623.13953.09102.53061.77911.7782
H155.34734.23722.82752.18901.09776.32385.51014.52183.16432.58942.53023.09121.77931.7782

picture of 1-pentene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 124.679 C1 C2 H8 119.853
C2 C1 H6 121.934 C2 C1 H7 121.848
C2 C3 C4 112.130 C2 C3 H9 109.605
C2 C3 H10 109.333 C3 C2 H8 115.466
C3 C4 C5 112.111 C3 C4 H11 109.145
C3 C4 H12 109.176 C4 C3 H9 109.553
C4 C3 H10 108.587 C4 C5 H13 110.575
C4 C5 H14 110.701 C4 C5 H15 110.715
C5 C4 H11 109.511 C5 C4 H12 109.534
H6 C1 H7 116.217 H9 C3 H10 107.517
H11 C4 H12 107.240 H13 C5 H14 108.274
H13 C5 H15 108.287 H14 C5 H15 108.197
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.176      
2 C -0.077      
3 C -0.145      
4 C -0.134      
5 C -0.231      
6 H 0.078      
7 H 0.076      
8 H 0.075      
9 H 0.077      
10 H 0.079      
11 H 0.073      
12 H 0.076      
13 H 0.077      
14 H 0.076      
15 H 0.076      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.314 0.036 0.054 0.321
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.162 0.130 -0.387
y 0.130 -30.175 0.650
z -0.387 0.650 -31.216
Traceless
 xyz
x -0.466 0.130 -0.387
y 0.130 1.014 0.650
z -0.387 0.650 -0.548
Polar
3z2-r2-1.096
x2-y2-0.987
xy0.130
xz-0.387
yz0.650


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.611 -0.270 -0.719
y -0.270 3.777 0.503
z -0.719 0.503 3.118


<r2> (average value of r2) Å2
<r2> 179.253
(<r2>)1/2 13.389