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All results from a given calculation for C5H8 (1,4-Pentadiene)

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-195.200390
Energy at 298.15K-195.207908
Nuclear repulsion energy155.360077
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 B1B95/6-31+G**
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 3255 3113 14.52      
2 A 3172 3034 4.04      
3 A 3160 3023 5.16      
4 A 3041 2909 20.41      
5 A 1732 1657 1.12      
6 A 1472 1408 8.00      
7 A 1443 1381 0.14      
8 A 1316 1259 0.33      
9 A 1258 1203 0.02      
10 A 1086 1039 3.15      
11 A 1027 982 12.94      
12 A 947 906 48.78      
13 A 916 876 5.14      
14 A 681 651 13.31      
15 A 372 356 0.52      
16 A 297 284 0.08      
17 A 91 87 0.03      
18 A 3255 3113 17.97      
19 A 3171 3033 9.32      
20 A 3160 3023 24.46      
21 A 3091 2956 12.08      
22 A 1718 1644 32.27      
23 A 1450 1387 3.89      
24 A 1326 1268 0.30      
25 A 1294 1238 4.19      
26 A 1171 1121 4.12      
27 A 1031 986 18.70      
28 A 978 935 3.29      
29 A 946 905 47.71      
30 A 892 853 10.46      
31 A 615 588 14.12      
32 A 451 431 3.15      
33 A 103 99 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 24955.5 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 23872.4 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 B1B95/6-31+G**
ABC
0.67362 0.07829 0.07770

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.658
C2 0.000 1.247 -0.181
C3 0.000 -1.247 -0.181
C4 0.958 2.172 -0.171
C5 -0.958 -2.172 -0.171
H6 -0.882 -0.009 1.309
H7 0.882 0.009 1.309
H8 -0.854 1.369 -0.845
H9 0.854 -1.369 -0.845
H10 0.905 3.052 -0.803
H11 -0.905 -3.052 -0.803
H12 1.828 2.082 0.475
H13 -1.828 -2.082 0.475

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.50261.50262.51492.51491.09661.09662.20532.20533.50303.50302.77622.7762
C21.50262.49351.33233.55092.13862.12851.08892.83102.11354.43702.11343.8533
C31.50262.49353.55091.33232.12852.13862.83101.08894.43702.11353.85332.1134
C42.51491.33233.55094.74863.21492.62272.09363.60671.08475.58281.08685.1259
C52.51493.55091.33234.74862.62273.21493.60672.09365.58281.08475.12591.0868
H61.09662.13862.12853.21492.62271.76492.55723.08334.12633.70493.52272.4264
H71.09662.12852.13862.62273.21491.76493.08332.55723.70494.12632.42643.5227
H82.20531.08892.83102.09363.60672.55723.08333.22772.43494.42193.07253.8208
H92.20532.83101.08893.60672.09363.08332.55723.22774.42192.43493.82083.0725
H103.50302.11354.43701.08475.58284.12633.70492.43494.42196.36701.85095.9547
H113.50304.43702.11355.58281.08473.70494.12634.42192.43496.36705.95471.8509
H122.77622.11343.85331.08685.12593.52272.42643.07253.82081.85095.95475.5402
H132.77623.85332.11345.12591.08682.42643.52273.82083.07255.95471.85095.5402

picture of 1,4-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 124.925 C1 C2 H8 115.715
C1 C3 C5 124.925 C1 C3 H9 115.715
C2 C1 C3 112.146 C2 C1 H6 109.746
C2 C1 H7 108.956 C2 C4 H10 121.619
C2 C4 H12 121.440 C3 C1 H6 108.956
C3 C1 H7 109.746 C3 C5 H11 121.619
C3 C5 H13 121.440 C4 C2 H8 119.355
C5 C3 H9 119.355 H6 C1 H7 107.164
H10 C4 H12 116.941 H11 C5 H13 116.941
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.408      
2 C 0.048      
3 C 0.048      
4 C -0.437      
5 C -0.437      
6 H 0.161      
7 H 0.161      
8 H 0.147      
9 H 0.147      
10 H 0.147      
11 H 0.147      
12 H 0.138      
13 H 0.138      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.143 0.143
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.020 0.990 0.000
y 0.990 -32.353 0.000
z 0.000 0.000 -32.843
Traceless
 xyz
x 1.578 0.990 0.000
y 0.990 -0.421 0.000
z 0.000 0.000 -1.156
Polar
3z2-r2-2.312
x2-y21.333
xy0.990
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.131 2.860 0.000
y 2.860 11.494 0.000
z 0.000 0.000 7.053


<r2> (average value of r2) Å2
<r2> 158.653
(<r2>)1/2 12.596