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

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G**
 hartrees
Energy at 0K-194.659576
Energy at 298.15K-194.666965
HF Energy-193.946082
Nuclear repulsion energy157.092455
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/6-31G**
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 3319 3102 3.24      
2 A 3237 3025 24.55      
3 A 3235 3023 27.57      
4 A 3227 3016 3.68      
5 A 3226 3014 7.88      
6 A 3160 2953 18.16      
7 A 3137 2932 16.73      
8 A 3115 2911 32.44      
9 A 2076 1940 9.92      
10 A 1564 1461 3.55      
11 A 1558 1456 5.76      
12 A 1546 1445 0.09      
13 A 1529 1429 1.10      
14 A 1470 1374 3.31      
15 A 1415 1322 14.89      
16 A 1386 1295 0.53      
17 A 1328 1240 0.05      
18 A 1177 1100 0.89      
19 A 1142 1067 1.88      
20 A 1124 1050 2.73      
21 A 1050 981 0.15      
22 A 1022 955 0.35      
23 A 925 865 12.90      
24 A 890 832 20.63      
25 A 878 820 31.11      
26 A 816 763 2.33      
27 A 641 599 1.62      
28 A 528 493 4.80      
29 A 367 343 2.44      
30 A 334 312 4.35      
31 A 274 256 0.03      
32 A 155 145 0.17      
33 A 93 87 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 25471.6 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 23800.6 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/6-31G**
ABC
0.33871 0.10859 0.08627

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.386 0.489 -0.000
C2 1.462 -1.029 0.000
C3 -0.022 1.028 0.001
C4 -1.104 0.284 -0.001
C5 -2.189 -0.455 0.000
H6 1.909 0.888 -0.872
H7 1.910 0.889 0.871
H8 0.970 -1.440 0.879
H9 2.497 -1.363 -0.001
H10 0.968 -1.440 -0.877
H11 -0.140 2.107 0.002
H12 -2.652 -0.772 0.924
H13 -2.655 -0.771 -0.923

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.52031.50732.49833.69691.09251.09252.16032.16002.16042.22324.33014.3316
C21.52032.53642.88243.69532.15342.15321.08771.08781.08763.52114.22434.2266
C31.50732.53641.31312.62542.12422.12402.80063.47302.80071.08513.31813.3195
C42.49832.88241.31311.31233.19473.19582.83643.96002.83482.06202.08962.0898
C53.69693.69532.62541.31234.39984.40063.42294.77293.42143.28011.08111.0811
H61.09252.15342.12423.19474.39981.74313.06082.48432.51152.53945.17594.8564
H71.09252.15322.12403.19584.40061.74312.51112.48433.06072.53804.85585.1779
H82.16031.08772.80062.83643.42293.06082.51111.76431.75633.81773.68314.1023
H92.16001.08783.47303.96004.77292.48432.48431.76431.76434.35785.26505.2670
H102.16041.08762.80072.83483.42142.51153.06071.75631.76433.81874.09863.6844
H112.22323.52111.08512.06203.28012.53942.53803.81774.35783.81873.93043.9320
H124.33014.22433.31812.08961.08115.17594.85583.68315.26504.09863.93041.8467
H134.33164.22663.31952.08981.08114.85645.17794.10235.26703.68443.93201.8467

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 110.768 C1 C2 H9 110.736
C1 C2 H10 110.772 C1 C3 C4 124.554
C1 C3 H11 117.165 C2 C1 C3 113.809
C2 C1 H6 109.927 C2 C1 H7 109.914
C3 C1 H6 108.531 C3 C1 H7 108.512
C3 C4 C5 179.743 C4 C3 H11 118.282
C4 C5 H12 121.334 C4 C5 H13 121.351
H6 C1 H7 105.826 H8 C2 H9 108.391
H8 C2 H10 107.679 H9 C2 H10 108.391
H12 C5 H13 117.315
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability