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

using model chemistry: MP2/SDD

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/SDD
 hartrees
Energy at 0K-194.305928
Energy at 298.15K-194.313199
HF Energy-193.872120
Nuclear repulsion energy153.709183
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/SDD
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 3228 3116 11.31      
2 A 3142 3033 16.83      
3 A 3131 3023 7.48      
4 A 3131 3022 47.45      
5 A 3125 3016 46.87      
6 A 3068 2961 23.40      
7 A 3025 2920 22.12      
8 A 3020 2915 52.67      
9 A 1984 1915 15.39      
10 A 1544 1491 6.11      
11 A 1536 1483 8.18      
12 A 1528 1475 0.88      
13 A 1511 1459 4.10      
14 A 1460 1409 7.19      
15 A 1413 1364 8.31      
16 A 1352 1305 2.21      
17 A 1303 1257 0.06      
18 A 1158 1118 0.67      
19 A 1145 1105 2.92      
20 A 1104 1065 3.04      
21 A 1054 1018 0.00      
22 A 999 964 1.03      
23 A 927 895 16.98      
24 A 900 869 81.77      
25 A 836 807 1.82      
26 A 819 791 7.05      
27 A 626 605 3.14      
28 A 528 510 5.56      
29 A 351 339 5.19      
30 A 314 303 11.08      
31 A 255 246 0.03      
32 A 146 141 0.88      
33 A 93 90 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 24875.7 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 24012.5 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/SDD
ABC
0.32517 0.10334 0.08222

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.417 0.506 0.000
C2 1.505 -1.050 -0.000
C3 -0.028 1.049 0.000
C4 -1.134 0.287 -0.001
C5 -2.243 -0.469 0.000
H6 1.942 0.908 -0.889
H7 1.941 0.908 0.890
H8 1.011 -1.472 0.893
H9 2.563 -1.372 0.001
H10 1.012 -1.471 -0.894
H11 -0.145 2.142 0.001
H12 -2.714 -0.788 0.936
H13 -2.717 -0.789 -0.934

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55871.54402.56033.78821.10831.10832.20762.19942.20752.26244.42974.4316
C21.55872.59952.95873.79352.19502.19491.10441.10511.10443.59364.33044.3319
C31.54402.59951.34242.68522.16572.16552.86863.54552.86921.09923.38633.3879
C42.56032.95871.34241.34283.26063.26072.91414.05162.91482.10122.12932.1295
C53.78823.79352.68521.34284.49464.49393.52014.89003.52203.34901.09531.0953
H61.10832.19502.16573.26064.49461.77993.11582.52542.55462.58245.28104.9579
H71.10832.19492.16553.26074.49391.77992.55502.52493.11572.58204.95485.2820
H82.20761.10442.86862.91413.52013.11582.55501.79291.78723.89743.78764.2068
H92.19941.10513.54554.05164.89002.52542.52491.79291.79284.43605.39105.3930
H102.20751.10442.86922.91483.52202.55463.11571.78721.79283.89804.20793.7911
H112.26243.59361.09922.10123.34902.58242.58203.89744.43603.89804.00734.0091
H124.42974.33043.38632.12931.09535.28104.95483.78765.39104.20794.00731.8703
H134.43164.33193.38792.12951.09534.95795.28204.20685.39303.79114.00911.8703

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 110.827 C1 C2 H9 110.150
C1 C2 H10 110.821 C1 C3 C4 124.861
C1 C3 H11 116.719 C2 C1 C3 113.822
C2 C1 H6 109.619 C2 C1 H7 109.612
C3 C1 H6 108.360 C3 C1 H7 108.344
C3 C4 C5 179.701 C4 C3 H11 118.420
C4 C5 H12 121.366 C4 C5 H13 121.384
H6 C1 H7 106.839 H8 C2 H9 108.472
H8 C2 H10 108.017 H9 C2 H10 108.472
H12 C5 H13 117.250
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability