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

using model chemistry: B3LYP/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 B3LYP/6-31G*
 hartrees
Energy at 0K-195.289464
Energy at 298.15K-195.296788
Nuclear repulsion energy156.122235
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/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 3139 3014 8.08      
2 A 3130 3006 15.53      
3 A 3124 3000 34.21      
4 A 3056 2935 21.14      
5 A 3020 2900 40.48      
6 A 2074 1991 24.69      
7 A 1533 1472 4.04      
8 A 1518 1458 0.69      
9 A 1504 1444 2.15      
10 A 1444 1387 3.52      
11 A 1396 1341 17.93      
12 A 1361 1307 2.86      
13 A 1166 1119 0.97      
14 A 1099 1056 3.05      
15 A 1006 966 0.34      
16 A 872 837 52.09      
17 A 854 820 2.43      
18 A 643 617 1.78      
19 A 365 351 2.33      
20 A 154 148 0.18      
21 A 3206 3078 6.88      
22 A 3126 3002 33.24      
23 A 3042 2921 23.60      
24 A 1525 1464 5.98      
25 A 1301 1249 0.05      
26 A 1116 1072 2.01      
27 A 1041 999 0.01      
28 A 909 873 11.98      
29 A 799 767 3.03      
30 A 528 507 3.99      
31 A 351 337 4.64      
32 A 249 239 0.06      
33 A 99 95 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 24873.8 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 23886.3 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/6-31G*
ABC
0.34077 0.10544 0.08443

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.470 -1.090 0.000
C2 -1.402 0.438 0.000
C3 0.000 1.014 0.000
C4 1.113 0.325 0.000
C5 2.230 -0.357 0.000
H6 -1.938 0.836 0.874
H7 -1.938 0.836 -0.874
H8 -0.974 -1.507 -0.883
H9 -2.511 -1.431 0.000
H10 -0.974 -1.507 0.883
H11 0.070 2.104 0.000
H12 2.719 -0.654 -0.926
H13 2.719 -0.654 0.926

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.52932.56632.94513.77132.16612.16611.09531.09531.09533.54534.31224.3122
C21.52931.51572.51773.71751.10011.10012.17852.17292.17852.22274.36294.3629
C32.56631.51571.30922.61732.13352.13352.84343.50432.84341.09203.32193.3219
C42.94512.51771.30921.30823.21493.21492.91464.02692.91462.06232.09662.0966
C53.77133.71752.61731.30824.42224.42223.51684.86043.51683.27421.08891.0889
H62.16611.10012.13353.21494.42221.74883.08342.49602.53332.53035.21074.8900
H72.16611.10012.13353.21494.42221.74882.53332.49603.08342.53034.89005.2107
H81.09532.17852.84342.91463.51683.08342.53331.77381.76673.86113.79104.2004
H91.09532.17293.50434.02694.86042.49602.49601.77381.77384.37625.36785.3678
H101.09532.17852.84342.91463.51682.53333.08341.76671.77383.86114.20043.7910
H113.54532.22271.09202.06233.27422.53032.53033.86114.37623.86113.93503.9350
H124.31224.36293.32192.09661.08895.21074.89003.79105.36784.20043.93501.8522
H134.31224.36293.32192.09661.08894.89005.21074.20045.36783.79103.93501.8522

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 27.969 C1 C2 H9 28.140
C1 C2 H10 27.969 C1 C3 C4 93.188
C1 C3 H11 148.719 C2 C1 C3 32.397
C2 C1 H6 28.533 C2 C1 H7 28.533
C3 C1 H6 52.772 C3 C1 H7 52.772
C3 C4 C5 179.668 C4 C3 H11 118.094
C4 C5 H12 121.740 C4 C5 H13 121.740
H6 C1 H7 47.618 H8 C2 H9 48.115
H8 C2 H10 47.842 H9 C2 H10 48.115
H12 C5 H13 116.520
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.445 -0.241   0.208
2 C -0.269 0.341   -0.296
3 C -0.312 -0.338   -0.297
4 C 0.350 0.143   0.154
5 C -0.539 -0.416   -0.525
6 H 0.148 -0.043   -0.002
7 H 0.148 -0.043   -0.002
8 H 0.153 0.056   0.084
9 H 0.141 0.043   0.063
10 H 0.153 0.056   0.084
11 H 0.150 0.126   0.128
12 H 0.161 0.158   0.199
13 H 0.161 0.158   0.199


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.415 0.066 0.000 0.420
CHELPG -0.350 0.096 0.000 0.363
AIM        
ESP 0.378 0.070 0.001 0.385


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.931 -1.581 0.000
y -1.581 -31.279 0.000
z 0.000 0.000 -31.527
Traceless
 xyz
x 1.472 -1.581 0.000
y -1.581 -0.549 0.000
z 0.000 0.000 -0.922
Polar
3z2-r2-1.844
x2-y21.347
xy-1.581
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.156 -2.200 0.000
y -2.200 7.018 0.000
z 0.000 0.000 5.448


<r2> (average value of r2) Å2
<r2> 145.748
(<r2>)1/2 12.073