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All results from a given calculation for C5H8 (1,2-Pentadiene)

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 C1 1A'
Energy calculated at BLYP/6-31G**
 hartrees
Energy at 0K-195.185613
Energy at 298.15K-195.192782
Nuclear repulsion energy155.016950
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 3114 3090 8.36      
2 A 3050 3027 11.89      
3 A 3045 3021 34.07      
4 A 3044 3020 31.72      
5 A 3038 3015 17.76      
6 A 2976 2953 22.80      
7 A 2954 2931 24.96      
8 A 2934 2912 42.09      
9 A 2001 1986 20.88      
10 A 1481 1470 3.32      
11 A 1472 1461 4.72      
12 A 1464 1453 1.08      
13 A 1450 1439 1.68      
14 A 1391 1380 2.21      
15 A 1348 1338 19.21      
16 A 1305 1295 4.12      
17 A 1256 1246 0.03      
18 A 1128 1119 0.81      
19 A 1075 1066 1.69      
20 A 1059 1051 2.88      
21 A 1003 995 0.03      
22 A 973 965 0.28      
23 A 874 867 10.67      
24 A 830 823 40.02      
25 A 819 812 8.53      
26 A 773 767 2.71      
27 A 622 617 1.40      
28 A 508 504 3.96      
29 A 353 350 2.27      
30 A 338 335 4.00      
31 A 238 236 0.08      
32 A 150 148 0.19      
33 A 93 92 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 24077.6 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 23892.2 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 BLYP/6-31G**
ABC
0.33729 0.10354 0.08304

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.386 0.513 0.001
C2 -1.543 -1.018 -0.001
C3 0.055 1.016 -0.002
C4 1.139 0.267 0.001
C5 2.228 -0.473 0.000
H6 -1.900 0.943 0.882
H7 -1.905 0.946 -0.875
H8 -1.073 -1.465 -0.891
H9 -2.607 -1.301 0.003
H10 -1.066 -1.468 0.885
H11 0.181 2.108 -0.005
H12 2.704 -0.799 -0.931
H13 2.708 -0.795 0.931

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.53951.52612.53703.74611.10691.10692.19222.18712.19232.23564.39534.3967
C21.53952.58712.97413.81012.18052.18051.10121.10131.10123.57014.35314.3570
C31.52612.58711.31812.63482.14672.14672.86673.52952.86611.09893.34343.3448
C42.53702.97411.31811.31673.23603.23932.94724.06132.94212.07562.11032.1103
C53.74613.81012.63481.31674.45274.45653.56004.90563.55323.29471.09541.0954
H61.10692.18052.14673.23604.45271.75763.10252.51212.55102.54445.24614.9247
H71.10692.18052.14673.23934.45651.75762.55002.51283.10272.54124.92835.2503
H82.19221.10122.86672.94723.56003.10252.55001.78311.77573.88863.83534.2497
H92.18711.10133.52954.06134.90562.51212.51281.78311.78314.40415.41605.4188
H102.19231.10122.86612.94213.55322.55103.10271.77571.78313.89024.23793.8337
H112.23563.57011.09892.07563.29472.54442.54123.88864.40413.89023.95953.9608
H124.39534.35313.34342.11031.09545.24614.92833.83535.41604.23793.95951.8622
H134.39674.35703.34482.11031.09544.92475.25034.24975.41883.83373.96081.8622

picture of 1,2-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H8 111.136 C1 C2 H9 110.734
C1 C2 H10 111.151 C1 C3 C4 126.093
C1 C3 H11 115.833 C2 C1 C3 115.109
C2 C1 H6 109.885 C2 C1 H7 109.882
C3 C1 H6 108.185 C3 C1 H7 108.179
C3 C4 C5 179.548 C4 C3 H11 118.073
C4 C5 H12 121.784 C4 C5 H13 121.793
H6 C1 H7 105.110 H8 C2 H9 108.110
H8 C2 H10 107.459 H9 C2 H10 108.110
H12 C5 H13 116.423
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.154      
2 C -0.287      
3 C -0.253      
4 C 0.328      
5 C -0.404      
6 H 0.095      
7 H 0.094      
8 H 0.101      
9 H 0.086      
10 H 0.101      
11 H 0.087      
12 H 0.104      
13 H 0.104      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.435 0.074 0.000 0.441
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.237 -1.533 0.001
y -1.533 -31.184 -0.000
z 0.001 -0.000 -31.625
Traceless
 xyz
x 1.168 -1.533 0.001
y -1.533 -0.253 -0.000
z 0.001 -0.000 -0.915
Polar
3z2-r2-1.829
x2-y20.948
xy-1.533
xz0.001
yz-0.000


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> 147.885
(<r2>)1/2 12.161