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

using model chemistry: CISD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CISD/6-31G
 hartrees
Energy at 0K-194.297586
Energy at 298.15K-194.305248
Nuclear repulsion energy154.355804
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 CISD/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 3296 3091 24.67      
2 A 3220 3020 2.11      
3 A 3203 3004 10.01      
4 A 3074 2883 27.25      
5 A 1782 1671 0.31      
6 A 1573 1475 7.61      
7 A 1540 1445 0.03      
8 A 1395 1308 0.00      
9 A 1328 1245 0.00      
10 A 1146 1075 1.49      
11 A 1070 1003 13.64      
12 A 1008 945 52.06      
13 A 954 894 3.94      
14 A 702 659 8.77      
15 A 391 367 0.45      
16 A 308 289 0.22      
17 A 88 82 0.01      
18 A 3296 3091 30.83      
19 A 3217 3017 9.87      
20 A 3203 3004 33.36      
21 A 3115 2922 19.54      
22 A 1769 1659 12.47      
23 A 1541 1445 3.19      
24 A 1404 1316 0.76      
25 A 1392 1305 2.81      
26 A 1234 1157 2.07      
27 A 1072 1005 16.12      
28 A 1012 949 19.33      
29 A 1006 944 32.58      
30 A 953 894 6.11      
31 A 634 595 12.16      
32 A 469 440 1.90      
33 A 91 85 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 25743.4 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 24142.1 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 CISD/6-31G
ABC
0.66748 0.07703 0.07642

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.663
C2 0.000 1.260 -0.185
C3 0.000 -1.260 -0.185
C4 0.962 2.191 -0.171
C5 -0.962 -2.191 -0.171
H6 -0.882 -0.007 1.318
H7 0.882 0.007 1.318
H8 -0.855 1.376 -0.849
H9 0.855 -1.376 -0.849
H10 0.917 3.073 -0.801
H11 -0.917 -3.073 -0.801
H12 1.831 2.108 0.476
H13 -1.831 -2.108 0.476

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.51881.51882.53432.53431.09851.09852.21632.21633.52553.52552.79862.7986
C21.51882.51951.33903.58262.15462.14601.08912.84912.12344.47152.12353.8899
C31.51882.51953.58261.33902.14602.15462.84911.08914.47152.12343.88992.1235
C42.53431.33903.58264.78613.23272.64412.10403.63241.08475.62511.08675.1674
C52.53433.58261.33904.78612.64413.23273.63242.10405.62511.08475.16741.0867
H61.09852.15462.14603.23272.64411.76502.57093.09634.14923.72673.54222.4539
H71.09852.14602.15462.64413.23271.76503.09632.57093.72674.14922.45393.5422
H82.21631.08912.84912.10403.63242.57093.09633.23932.45464.44933.08363.8528
H92.21632.84911.08913.63242.10403.09632.57093.23934.44932.45463.85283.0836
H103.52552.12344.47151.08475.62514.14923.72672.45464.44936.41411.84306.0023
H113.52554.47152.12345.62511.08473.72674.14924.44932.45466.41416.00231.8430
H122.79862.12353.88991.08675.16743.54222.45393.08363.85281.84306.00235.5845
H132.79863.88992.12355.16741.08672.45393.54223.85283.08366.00231.84305.5845

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 124.830 C1 C2 H8 115.403
C1 C3 C5 124.830 C1 C3 H9 115.403
C2 C1 C3 112.079 C2 C1 H6 109.769
C2 C1 H7 109.095 C2 C4 H10 122.004
C2 C4 H12 121.844 C3 C1 H6 109.095
C3 C1 H7 109.769 C3 C5 H11 122.004
C3 C5 H13 121.844 C4 C2 H8 119.764
C5 C3 H9 119.764 H6 C1 H7 106.898
H10 C4 H12 116.152 H11 C5 H13 116.152
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at CISD/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.410      
2 C -0.109      
3 C -0.109      
4 C -0.366      
5 C -0.366      
6 H 0.177      
7 H 0.177      
8 H 0.180      
9 H 0.180      
10 H 0.164      
11 H 0.164      
12 H 0.159      
13 H 0.159      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


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> 0.000
(<r2>)1/2 0.000