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

using model chemistry: MP2=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-193.326522
Energy at 298.15K-193.334086
HF Energy-192.870334
Nuclear repulsion energy154.394309
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 MP2=FULL/3-21G*
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 3257 3087 15.49      
2 A 3180 3015 3.12      
3 A 3167 3002 3.43      
4 A 3059 2900 17.26      
5 A 1696 1608 0.08      
6 A 1562 1481 7.51      
7 A 1534 1454 0.03      
8 A 1374 1303 0.00      
9 A 1315 1247 0.00      
10 A 1125 1067 0.34      
11 A 1047 993 17.47      
12 A 964 914 43.09      
13 A 929 881 5.64      
14 A 684 649 8.47      
15 A 382 362 0.30      
16 A 313 296 0.49      
17 A 84 80 0.04      
18 A 3257 3087 20.04      
19 A 3180 3014 8.40      
20 A 3167 3002 21.01      
21 A 3107 2946 10.30      
22 A 1682 1595 8.42      
23 A 1525 1445 1.88      
24 A 1376 1305 0.57      
25 A 1362 1291 1.66      
26 A 1201 1138 2.80      
27 A 1048 993 18.24      
28 A 966 915 30.42      
29 A 962 912 12.27      
30 A 925 877 6.72      
31 A 616 584 14.20      
32 A 463 439 1.81      
33 A 88 83 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25297.4 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 23981.9 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 MP2=FULL/3-21G*
ABC
0.62626 0.07841 0.07771

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.705
C2 0.000 1.252 -0.166
C3 0.000 -1.252 -0.166
C4 0.998 2.148 -0.205
C5 -0.998 -2.148 -0.205
H6 -0.889 -0.010 1.351
H7 0.889 0.010 1.351
H8 -0.876 1.378 -0.801
H9 0.876 -1.378 -0.801
H10 0.964 3.018 -0.854
H11 -0.964 -3.018 -0.854
H12 1.884 2.041 0.415
H13 -1.884 -2.041 0.415

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.52491.52492.53752.53751.09911.09912.22192.22193.53113.53112.79302.7930
C21.52492.50321.34193.54332.16412.15291.08942.84382.12674.43092.12413.8381
C31.52492.50323.54331.34192.15292.16412.84381.08944.43092.12673.83812.1241
C42.53751.34193.54334.73703.26182.64722.11143.57851.08575.56411.08745.1226
C52.53753.54331.34194.73702.64723.26183.57852.11145.56411.08575.12261.0874
H61.09912.16412.15293.26182.64721.77832.56153.10194.17893.73083.57402.4481
H71.09912.15292.16412.64723.26181.77833.10192.56153.73084.17892.44813.5740
H82.22191.08942.84382.11143.57852.56153.10193.26592.46484.39773.08833.7671
H92.22192.84381.08943.57852.11143.10192.56153.26594.39772.46483.76713.0883
H103.53112.12674.43091.08575.56414.17893.73082.46484.39776.33671.84735.9430
H113.53114.43092.12675.56411.08573.73084.17894.39772.46486.33675.94301.8473
H122.79302.12413.83811.08745.12263.57402.44813.08833.76711.84735.94305.5558
H132.79303.83812.12415.12261.08742.44813.57403.76713.08835.94301.84735.5558

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 124.407 C1 C2 H8 115.387
C1 C3 C5 124.407 C1 C3 H9 115.387
C2 C1 C3 110.321 C2 C1 H6 110.063
C2 C1 H7 109.181 C2 C4 H10 121.979
C2 C4 H12 121.581 C3 C1 H6 109.181
C3 C1 H7 110.063 C3 C5 H11 121.979
C3 C5 H13 121.581 C4 C2 H8 120.189
C5 C3 H9 120.189 H6 C1 H7 107.996
H10 C4 H12 116.440 H11 C5 H13 116.440
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2=FULL/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.511      
2 C -0.198      
3 C -0.198      
4 C -0.419      
5 C -0.419      
6 H 0.228      
7 H 0.228      
8 H 0.229      
9 H 0.229      
10 H 0.212      
11 H 0.212      
12 H 0.204      
13 H 0.204      


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 7.231 2.681 0.000
y 2.681 8.363 0.000
z 0.000 0.000 4.753


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000