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

using model chemistry: HF/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-195.208214
Energy at 298.15K-195.218729
Nuclear repulsion energy170.688473
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/6-311+G(3df,2p)
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 3351 3045 21.30      
2 A 3276 2977 3.84      
3 A 3263 2965 30.14      
4 A 3211 2917 67.93      
5 A 3210 2916 88.87      
6 A 3186 2895 7.74      
7 A 3166 2877 11.47      
8 A 3150 2862 25.67      
9 A 3145 2858 52.41      
10 A 3135 2849 14.41      
11 A 1837 1669 18.13      
12 A 1626 1478 6.90      
13 A 1615 1467 5.73      
14 A 1611 1463 0.36      
15 A 1605 1458 4.12      
16 A 1573 1429 1.80      
17 A 1537 1397 1.40      
18 A 1510 1372 0.14      
19 A 1437 1306 0.62      
20 A 1425 1294 0.88      
21 A 1407 1278 5.23      
22 A 1369 1244 0.08      
23 A 1293 1175 0.24      
24 A 1205 1095 1.02      
25 A 1137 1033 10.83      
26 A 1113 1011 2.55      
27 A 1098 998 1.11      
28 A 1066 969 59.60      
29 A 1011 918 0.27      
30 A 952 865 5.18      
31 A 939 853 0.08      
32 A 799 726 1.59      
33 A 696 632 10.85      
34 A 466 424 1.62      
35 A 409 372 0.19      
36 A 265 241 0.02      
37 A 247 224 0.09      
38 A 110 100 0.04      
39 A 106 96 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 31777.2 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 28872.7 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/6-311+G(3df,2p)
ABC
0.62064 0.07099 0.06988

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.468 -0.209 -0.303
C2 1.415 0.334 0.271
C3 0.073 -0.322 0.424
C4 -1.050 0.450 -0.275
C5 -2.419 -0.192 -0.079
H6 3.399 0.320 -0.382
H7 2.439 -1.203 -0.713
H8 1.497 1.334 0.666
H9 0.117 -1.335 0.037
H10 -0.163 -0.400 1.483
H11 -1.071 1.470 0.101
H12 -0.826 0.519 -1.335
H13 -3.193 0.373 -0.586
H14 -2.437 -1.203 -0.472
H15 -2.681 -0.242 0.973

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C11.31612.50533.57864.89181.07401.07562.06392.62913.18533.93723.52695.69705.00715.3049
C21.31611.50132.52683.88542.08912.09231.07862.12702.12042.73832.76254.68644.21284.1956
C32.50531.50131.53122.54543.48232.76912.19771.08501.08782.15012.14643.48792.80662.8096
C43.57862.52681.53121.52524.45203.88532.85512.15522.14451.08661.08552.16682.16722.1678
C54.89183.88542.54541.52525.84865.00264.26852.78382.75192.14722.14981.08391.08491.0850
H61.07402.08913.48234.45205.84861.83022.39653.70014.08474.64084.33546.59516.03226.2551
H71.07562.09232.76913.88535.00261.83023.03682.44443.49834.48603.74285.84934.88205.4758
H82.06391.07862.19772.85514.26852.39653.03683.06992.53582.63303.17194.94814.81744.4767
H92.62912.12701.08502.15522.78383.70012.44443.06991.74423.04632.49153.77582.60713.1460
H103.18532.12041.08782.14452.75194.08473.49832.53581.74422.49603.03693.74933.10462.5746
H113.93722.73832.15011.08662.14724.64084.48602.63303.04632.49601.73922.48503.05562.5071
H123.52692.76252.14641.08552.14984.33543.74283.17192.49153.03691.73922.48682.51113.0575
H135.69704.68643.48792.16681.08396.59515.84934.94813.77583.74932.48502.48681.75161.7520
H145.00714.21282.80662.16721.08496.03224.88204.81742.60713.10463.05562.51111.75161.7521
H155.30494.19562.80962.16781.08506.25515.47584.47673.14602.57462.50713.05751.75201.7521

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 125.421 C1 C2 H8 118.722
C2 C1 H6 121.546 C2 C1 H7 121.725
C2 C3 C4 112.858 C2 C3 H9 109.594
C2 C3 H10 108.910 C3 C2 H8 115.856
C3 C4 C5 112.776 C3 C4 H11 109.260
C3 C4 H12 109.033 C4 C3 H9 109.752
C4 C3 H10 108.755 C4 C5 H13 111.168
C4 C5 H14 111.138 C4 C5 H15 111.180
C5 C4 H11 109.453 C5 C4 H12 109.718
H6 C1 H7 116.728 H9 C3 H10 106.782
H11 C4 H12 106.397 H13 C5 H14 107.730
H13 C5 H15 107.764 H14 C5 H15 107.693
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.455      
2 C 0.183      
3 C -0.298      
4 C -0.185      
5 C -0.488      
6 H 0.133      
7 H 0.116      
8 H 0.106      
9 H 0.114      
10 H 0.140      
11 H 0.130      
12 H 0.131      
13 H 0.117      
14 H 0.130      
15 H 0.128      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.423 0.068 0.072 0.434
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.334 0.050 -0.677
y 0.050 -32.963 1.314
z -0.677 1.314 -34.668
Traceless
 xyz
x -0.518 0.050 -0.677
y 0.050 1.538 1.314
z -0.677 1.314 -1.020
Polar
3z2-r2-2.040
x2-y2-1.371
xy0.050
xz-0.677
yz1.314


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.434 -0.453 -0.695
y -0.453 8.087 0.244
z -0.695 0.244 7.858


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000