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

using model chemistry: MP2/CEP-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/CEP-31G
 hartrees
Energy at 0K-32.363446
Energy at 298.15K-32.370729
HF Energy-31.964657
Nuclear repulsion energy81.358726
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/CEP-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 3242 3133 48.92      
2 A 3151 3045 18.24      
3 A 3138 3032 63.59      
4 A 3135 3030 46.07      
5 A 3131 3025 9.98      
6 A 3121 3016 9.73      
7 A 3019 2917 53.04      
8 A 1687 1630 5.23      
9 A 1620 1566 4.61      
10 A 1527 1475 7.88      
11 A 1470 1420 1.81      
12 A 1458 1409 4.72      
13 A 1348 1302 1.90      
14 A 1332 1288 1.26      
15 A 1314 1270 0.46      
16 A 1217 1176 0.97      
17 A 1107 1070 1.11      
18 A 992 959 9.08      
19 A 907 876 2.91      
20 A 470 454 0.01      
21 A 441 426 0.30      
22 A 191 185 0.95      
23 A 3106 3002 50.05      
24 A 1499 1448 9.97      
25 A 1085 1049 0.53      
26 A 1036 1001 106.87      
27 A 987 954 1.03      
28 A 825 797 15.17      
29 A 816 789 52.11      
30 A 630 609 3.85      
31 A 243 234 5.08      
32 A 197 191 0.00      
33 A 131 127 0.84      

Unscaled Zero Point Vibrational Energy (zpe) 24785.2 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 23949.9 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/CEP-31G
ABC
0.89795 0.06786 0.06387

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.487 0.818 0.000
C2 -1.453 -0.115 0.000
C3 0.000 0.258 0.000
C4 1.034 -0.675 0.000
C5 2.530 -0.309 0.000
H6 -2.283 1.901 0.000
H7 -3.543 0.505 0.000
H8 -1.691 -1.194 0.000
H9 0.241 1.337 0.000
H10 0.779 -1.752 0.000
H11 2.663 0.794 0.000
H12 3.044 -0.722 0.897
H13 3.044 -0.722 -0.897

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.39232.54923.82435.14221.10201.10132.16312.77724.15575.15025.81115.8111
C21.39231.50002.54923.98812.17962.18001.10502.23112.76814.21534.62594.6259
C32.54921.50001.39272.59302.81263.55162.22881.10562.15552.71663.32143.3214
C43.82432.54921.39271.54074.19964.72662.77402.16251.10642.19382.20192.2019
C55.14223.98812.59301.54075.29626.12764.31342.81922.26921.11061.11301.1130
H61.10202.17962.81264.19965.29621.88013.15042.58654.76635.06856.00516.0051
H71.10132.18003.55164.72666.12761.88012.51303.87464.87596.21286.76036.7603
H82.16311.10502.22882.77404.31343.15042.51303.18422.53264.78664.84294.8429
H92.77722.23111.10562.16252.81922.58653.87463.18423.13522.48203.59153.5915
H104.15572.76812.15551.10642.26924.76634.87592.53263.13523.16712.64512.6451
H115.15024.21532.71662.19381.11065.06856.21284.78662.48203.16711.80171.8017
H125.81114.62593.32142.20191.11306.00516.76034.84293.59152.64511.80171.7933
H135.81114.62593.32142.20191.11306.00516.76034.84293.59152.64511.80171.7933

picture of 1,3-Pentadiene, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 123.571 C1 C2 H8 119.592
C2 C1 H6 121.380 C2 C1 H7 121.468
C2 C3 C4 123.549 C2 C3 H9 116.990
C3 C2 H8 116.837 C3 C4 C5 124.174
C3 C4 H10 118.754 C4 C3 H9 119.461
C4 C5 H11 110.628 C4 C5 H12 111.124
C4 C5 H13 111.124 C5 C4 H10 117.072
H6 C1 H7 117.152 H11 C5 H12 108.245
H11 C5 H13 108.245 H12 C5 H13 107.345
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability