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

using model chemistry: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-194.226094
Energy at 298.15K-194.233443
Nuclear repulsion energy156.320558
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 B3LYP/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3195 3083 5.45      
2 A 3130 3020 4.74      
3 A 3128 3019 10.36      
4 A 3128 3018 27.88      
5 A 3123 3014 27.62      
6 A 3059 2952 17.32      
7 A 3053 2946 15.23      
8 A 3031 2924 28.20      
9 A 2078 2005 23.88      
10 A 1568 1513 5.62      
11 A 1563 1508 7.69      
12 A 1546 1492 0.13      
13 A 1526 1473 4.06      
14 A 1464 1413 7.52      
15 A 1422 1372 9.38      
16 A 1350 1302 4.98      
17 A 1332 1285 0.00      
18 A 1177 1136 0.51      
19 A 1141 1101 2.31      
20 A 1103 1065 3.65      
21 A 1071 1033 0.34      
22 A 1009 974 1.00      
23 A 923 890 15.85      
24 A 910 878 69.36      
25 A 835 805 1.80      
26 A 819 791 5.97      
27 A 642 620 1.62      
28 A 532 513 5.99      
29 A 365 352 3.72      
30 A 327 316 6.63      
31 A 246 238 0.07      
32 A 154 148 0.30      
33 A 92 89 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 25020.1 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 24141.9 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 B3LYP/3-21G
ABC
0.33524 0.10735 0.08532

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.387 0.506 0.001
C2 -1.488 -1.031 -0.001
C3 0.045 1.026 -0.001
C4 1.116 0.279 0.001
C5 2.190 -0.465 0.000
H6 -1.902 0.911 0.884
H7 -1.906 0.913 -0.878
H8 -1.000 -1.447 -0.888
H9 -2.537 -1.346 0.002
H10 -0.995 -1.449 0.883
H11 0.159 2.111 -0.004
H12 2.660 -0.792 -0.925
H13 2.663 -0.789 0.924

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.54031.52422.51363.70611.09921.09922.17982.17962.18002.22874.34924.3506
C21.54032.56632.91533.72112.17352.17361.09471.09511.09473.54774.25614.2594
C31.52422.56631.30622.61192.14242.14252.82773.50672.82721.09043.31553.3170
C42.51362.91531.30621.30573.20793.21082.87173.99832.86742.06732.09372.0938
C53.70613.72112.61191.30574.40644.40963.45384.80813.44843.28011.08761.0876
H61.09922.17352.14243.20794.40641.76193.08372.50442.52792.54505.19404.8711
H71.09922.17362.14253.21084.40961.76192.52712.50493.08392.54254.87375.1978
H82.17981.09472.82772.87173.45383.08372.52711.77881.77153.84473.71814.1395
H92.17961.09513.50673.99834.80812.50442.50491.77881.77884.38385.30755.3101
H102.18001.09472.82722.86743.44842.52793.08391.77151.77883.84614.13003.7171
H112.22873.54771.09042.06733.28012.54502.54253.84474.38383.84613.94053.9419
H124.34924.25613.31552.09371.08765.19404.87373.71815.30754.13003.94051.8490
H134.35064.25943.31702.09381.08764.87115.19784.13955.31013.71713.94191.8490

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 110.493 C1 C2 H9 110.456
C1 C2 H10 110.509 C1 C3 C4 125.093
C1 C3 H11 115.957 C2 C1 C3 113.741
C2 C1 H6 109.735 C2 C1 H7 109.736
C3 C1 H6 108.413 C3 C1 H7 108.417
C3 C4 C5 179.762 C4 C3 H11 118.950
C4 C5 H12 121.780 C4 C5 H13 121.789
H6 C1 H7 106.536 H8 C2 H9 108.649
H8 C2 H10 108.016 H9 C2 H10 108.647
H12 C5 H13 116.430
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.416     0.173
2 C -0.554     -0.381
3 C -0.300     -0.327
4 C 0.155     0.144
5 C -0.491     -0.545
6 H 0.204     0.018
7 H 0.204     0.018
8 H 0.198     0.113
9 H 0.185     0.090
10 H 0.198     0.114
11 H 0.206     0.153
12 H 0.206     0.215
13 H 0.206     0.215


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.382 0.036 -0.001 0.384
CHELPG        
AIM        
ESP -0.351 0.018 -0.001 0.352


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.956 -1.931 0.000
y -1.931 -31.145 -0.001
z 0.000 -0.001 -32.042
Traceless
 xyz
x 1.637 -1.931 0.000
y -1.931 -0.146 -0.001
z 0.000 -0.001 -1.491
Polar
3z2-r2-2.982
x2-y21.189
xy-1.931
xz0.000
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.298 -2.454 0.003
y -2.454 6.751 -0.002
z 0.003 -0.002 4.981


<r2> (average value of r2) Å2
<r2> 144.548
(<r2>)1/2 12.023