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All results from a given calculation for C5H10 (2-Pentene, (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 CS 1A'
Energy calculated at MP2/CEP-31G
 hartrees
Energy at 0K-33.555701
Energy at 298.15K-33.565757
HF Energy-33.148284
Nuclear repulsion energy94.105774
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' 3161 3055 38.47      
2 A' 3129 3023 63.22      
3 A' 3125 3020 74.13      
4 A' 3120 3015 15.60      
5 A' 3030 2928 32.32      
6 A' 3021 2919 49.59      
7 A' 3019 2917 63.11      
8 A' 1686 1629 0.02      
9 A' 1537 1485 5.51      
10 A' 1529 1477 10.56      
11 A' 1518 1466 1.67      
12 A' 1460 1411 5.84      
13 A' 1452 1403 3.96      
14 A' 1405 1358 6.48      
15 A' 1354 1308 0.46      
16 A' 1337 1292 0.26      
17 A' 1162 1123 2.02      
18 A' 1100 1063 2.39      
19 A' 1057 1021 1.96      
20 A' 961 928 7.22      
21 A' 859 830 0.01      
22 A' 570 550 0.68      
23 A' 361 349 0.13      
24 A' 207 200 0.27      
25 A" 3136 3031 76.50      
26 A" 3107 3003 50.87      
27 A" 3074 2970 36.33      
28 A" 1527 1476 6.39      
29 A" 1500 1450 9.38      
30 A" 1299 1256 0.14      
31 A" 1138 1099 3.81      
32 A" 1088 1051 0.87      
33 A" 1014 979 57.34      
34 A" 848 820 5.12      
35 A" 727 702 0.45      
36 A" 294 284 2.52      
37 A" 219 212 2.09      
38 A" 193 187 1.94      
39 A" 109 105 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 30215.9 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 29197.6 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/CEP-31G
ABC
0.42108 0.07823 0.06858

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)
H1 -0.733 -1.272 0.000
C2 -1.001 -0.201 0.000
H3 -0.301 1.828 0.000
C4 0.000 0.763 0.000
H5 -3.012 -0.287 0.897
H6 -3.012 -0.287 -0.897
H7 -2.663 1.235 0.000
C8 -2.507 0.136 0.000
H9 1.972 0.991 -0.892
H10 1.972 0.991 0.892
C11 1.524 0.494 0.000
H12 3.036 -1.121 0.000
H13 1.535 -1.543 0.900
H14 1.535 -1.543 -0.900
C15 1.928 -1.023 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 H7 C8 H9 H10 C11 H12 H13 H14 C15
H11.10333.12992.16272.63972.63973.16382.26403.63803.63802.86563.77232.45562.45562.6732
C21.10332.14691.38992.20382.20382.19691.54293.32553.32552.61904.14053.00723.00723.0427
H33.12992.14691.10693.55403.55402.43582.78052.58162.58162.26074.45323.94283.94283.6196
C42.16271.38991.10693.31363.31362.70472.58402.17682.17681.54773.57302.91282.91282.6288
H52.63972.20383.55403.31361.79401.80101.11295.44805.14584.68956.17104.71785.04845.0751
H62.63972.20383.55403.31361.79401.80101.11295.14585.44804.68956.17105.04844.71785.0751
H73.16382.19692.43582.70471.80101.80101.11074.72714.72714.25246.16715.11435.11435.1171
C82.26401.54292.78052.58401.11291.11291.11074.64664.64664.04675.68344.46834.46834.5841
H93.63803.32552.58162.17685.44805.14584.72714.64661.78431.11542.52713.13412.57112.2035
H103.63803.32552.58162.17685.14585.44804.72714.64661.78431.11542.52712.57113.13412.2035
C112.86562.61902.26071.54774.68954.68954.25244.04671.11541.11542.21192.22662.22661.5701
H123.77234.14054.45323.57306.17106.17106.16715.68342.52712.52712.21191.80011.80011.1119
H132.45563.00723.94282.91284.71785.04845.11434.46833.13412.57112.22661.80011.80001.1110
H142.45563.00723.94282.91285.04844.71785.11434.46832.57113.13412.22661.80011.80001.1110
C152.67323.04273.61962.62885.07515.07515.11714.58412.20352.20351.57011.11191.11101.1110

picture of 2-Pentene, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 119.882 H1 C2 C8 116.660
C2 C4 H3 118.166 C2 C4 C11 126.049
C2 C8 H5 111.116 C2 C8 H6 111.116
C2 C8 H7 110.710 H3 C4 C11 115.786
C4 C2 C8 123.458 C4 C11 H9 108.561
C4 C11 H10 108.561 C4 C11 C15 114.945
H5 C8 H6 107.408 H5 C8 H7 108.177
H6 C8 H7 108.177 H9 C11 H10 106.229
H9 C11 C15 109.096 H10 C11 C15 109.096
C11 C15 H12 109.944 C11 C15 H13 111.139
C11 C15 H14 111.139 H12 C15 H13 108.151
H12 C15 H14 108.151 H13 C15 H14 108.210
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability