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

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-194.630148
Energy at 298.15K-194.637468
HF Energy-193.947855
Nuclear repulsion energy155.768767
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/cc-pVDZ
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 3275 3120 1.42      
2 A 3188 3037 22.05      
3 A 3187 3036 25.44      
4 A 3182 3031 6.92      
5 A 3177 3026 1.93      
6 A 3117 2969 15.91      
7 A 3088 2941 16.78      
8 A 3071 2925 34.88      
9 A 2046 1949 10.99      
10 A 1500 1429 4.29      
11 A 1492 1421 6.95      
12 A 1484 1414 0.14      
13 A 1472 1402 2.37      
14 A 1415 1348 3.09      
15 A 1364 1300 13.94      
16 A 1350 1286 0.22      
17 A 1288 1226 0.04      
18 A 1154 1099 1.49      
19 A 1102 1050 2.09      
20 A 1095 1043 2.22      
21 A 1017 968 0.31      
22 A 1002 955 0.43      
23 A 892 849 14.02      
24 A 878 836 8.55      
25 A 850 810 43.01      
26 A 793 755 2.58      
27 A 626 596 2.04      
28 A 514 489 4.93      
29 A 356 339 2.63      
30 A 325 310 5.08      
31 A 273 260 0.02      
32 A 149 142 0.30      
33 A 102 97 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 24910.8 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 23727.5 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/cc-pVDZ
ABC
0.33292 0.10703 0.08503

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.396 0.489 0.000
C2 1.469 -1.037 -0.000
C3 -0.018 1.037 0.000
C4 -1.112 0.289 -0.001
C5 -2.206 -0.459 0.000
H6 1.926 0.895 -0.882
H7 1.926 0.894 0.883
H8 0.969 -1.454 0.889
H9 2.518 -1.377 0.000
H10 0.969 -1.453 -0.890
H11 -0.139 2.129 0.001
H12 -2.672 -0.776 0.940
H13 -2.674 -0.777 -0.938

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.52781.51562.51573.72381.10651.10652.17892.17772.17882.24604.36194.3635
C21.52782.55152.90223.72012.17182.17181.10241.10211.10243.55114.25444.2557
C31.51562.55151.32532.64992.13952.13942.82223.50052.82231.09933.34833.3498
C42.51572.90221.32531.32463.22103.22142.85663.99402.85632.08132.10982.1099
C53.72383.72012.64991.32464.43634.43613.44334.81163.44383.31141.09571.0956
H61.10652.17182.13953.22104.43631.76483.09332.50782.53552.56315.22024.8942
H71.10652.17182.13943.22144.43611.76482.53562.50773.09332.56284.89215.2214
H82.17891.10242.82222.85663.44333.09332.53561.78751.77893.85403.70344.1308
H92.17771.10213.50053.99404.81162.50782.50771.78751.78754.39915.30795.3093
H102.17881.10242.82232.85633.44382.53553.09331.77891.78753.85424.13053.7053
H112.24603.55111.09932.08133.31142.56312.56283.85404.39913.85423.96663.9681
H124.36194.25443.34832.10981.09575.22024.89213.70345.30794.13053.96661.8776
H134.36354.25573.34982.10991.09564.89425.22144.13085.30933.70533.96811.8776

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 110.838 C1 C2 H9 110.762
C1 C2 H10 110.833 C1 C3 C4 124.505
C1 C3 H11 117.516 C2 C1 C3 113.938
C2 C1 H6 110.034 C2 C1 H7 110.034
C3 C1 H6 108.358 C3 C1 H7 108.351
C3 C4 C5 179.897 C4 C3 H11 117.979
C4 C5 H12 121.025 C4 C5 H13 121.044
H6 C1 H7 105.785 H8 C2 H9 108.360
H8 C2 H10 107.574 H9 C2 H10 108.361
H12 C5 H13 117.931
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability