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All results from a given calculation for C5H8 (1,3-Pentadiene, (Z)-)

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-194.589628
Energy at 298.15K-194.597054
HF Energy-193.952381
Nuclear repulsion energy155.031224
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 MP2/6-31G*
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 3308 3120 13.26      
2 A 3217 3034 4.56      
3 A 3207 3024 31.50      
4 A 3203 3020 14.82      
5 A 3189 3008 13.29      
6 A 3189 3007 7.72      
7 A 3166 2986 18.50      
8 A 3093 2916 23.60      
9 A 1739 1640 4.32      
10 A 1709 1612 3.04      
11 A 1557 1468 9.35      
12 A 1542 1454 6.75      
13 A 1492 1407 3.21      
14 A 1472 1388 1.36      
15 A 1373 1295 0.07      
16 A 1362 1284 0.37      
17 A 1338 1261 0.82      
18 A 1175 1108 0.97      
19 A 1108 1044 0.53      
20 A 1097 1034 0.64      
21 A 1037 978 11.75      
22 A 1026 968 29.09      
23 A 999 942 16.47      
24 A 936 882 3.78      
25 A 921 869 39.50      
26 A 816 770 1.56      
27 A 668 630 4.55      
28 A 573 540 2.11      
29 A 394 371 1.38      
30 A 253 239 2.00      
31 A 218 206 0.74      
32 A 181 170 1.17      
33 A 148 139 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 25352.4 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 23907.3 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 MP2/6-31G*
ABC
0.59333 0.08369 0.07565

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.158 -0.609 -0.116
C2 1.463 0.519 0.109
C3 0.013 0.665 -0.094
C4 -0.892 -0.291 0.180
C5 -2.367 -0.158 -0.050
H6 1.682 -1.504 -0.507
H7 3.225 -0.667 0.077
H8 1.989 1.407 0.461
H9 -0.327 1.628 -0.481
H10 -0.551 -1.234 0.609
H11 -2.614 0.823 -0.467
H12 -2.726 -0.925 -0.745
H13 -2.924 -0.285 0.885

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.34352.49393.08044.54781.08701.08572.10333.36232.87264.99364.93415.1894
C21.34351.47072.49103.89262.12622.12391.09082.18602.71604.12794.51224.5267
C32.49391.47071.34462.51922.76743.48042.18261.09182.10212.65793.23363.2387
C43.08042.49101.34461.49902.92734.13503.35602.10621.09122.14982.14982.1509
C54.54783.89262.51921.49904.29145.61644.65722.74562.21191.09371.09581.0956
H61.08702.12622.76742.92734.29141.85003.08333.72062.51054.88534.45194.9637
H71.08572.12393.48044.13505.61641.85002.44404.26433.85476.04956.01256.2133
H82.10331.09082.18263.35604.65723.08332.44402.50993.66724.73175.39705.2136
H93.36232.18601.09182.10622.74563.72064.26432.50993.07052.42453.51353.5029
H102.87262.71602.10211.09122.21192.51053.85473.66723.07053.10542.58072.5710
H114.99364.12792.65792.14981.09374.88536.04954.73172.42453.10541.77381.7752
H124.93414.51223.23362.14981.09584.45196.01255.39703.51352.58071.77381.7627
H135.18944.52673.23872.15091.09564.96376.21335.21363.50292.57101.77521.7627

picture of 1,3-Pentadiene, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 124.736 C1 C2 H8 119.178
C2 C1 H6 121.690 C2 C1 H7 121.565
C2 C3 C4 124.395 C2 C3 H9 116.313
C3 C2 H8 116.084 C3 C4 C5 124.649
C3 C4 H10 118.944 C4 C3 H9 119.286
C4 C5 H11 111.065 C4 C5 H12 110.935
C4 C5 H13 111.035 C5 C4 H10 116.405
H6 C1 H7 116.743 H11 C5 H12 108.211
H11 C5 H13 108.352 H12 C5 H13 107.095
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability