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All results from a given calculation for C5H10 (2-Pentene, (E)-)

using model chemistry: MP2/CEP-121G*

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-121G*
 hartrees
Energy at 0K-33.907833
Energy at 298.15K-33.917860
HF Energy-33.251768
Nuclear repulsion energy95.901657
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-121G*
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' 3190 3040 26.64      
2 A' 3162 3013 35.91      
3 A' 3158 3009 26.71      
4 A' 3150 3001 22.15      
5 A' 3066 2922 22.90      
6 A' 3054 2910 42.87      
7 A' 3053 2909 34.72      
8 A' 1710 1630 0.05      
9 A' 1545 1472 6.05      
10 A' 1534 1462 10.29      
11 A' 1518 1447 2.35      
12 A' 1453 1384 8.38      
13 A' 1445 1377 0.67      
14 A' 1400 1334 6.73      
15 A' 1337 1274 1.04      
16 A' 1330 1268 0.03      
17 A' 1161 1107 0.86      
18 A' 1109 1057 3.29      
19 A' 1042 993 1.91      
20 A' 962 917 5.64      
21 A' 871 830 0.05      
22 A' 577 550 0.58      
23 A' 366 349 0.19      
24 A' 211 201 0.24      
25 A" 3164 3015 37.92      
26 A" 3135 2987 26.18      
27 A" 3096 2949 20.28      
28 A" 1539 1466 8.11      
29 A" 1513 1441 7.65      
30 A" 1303 1242 0.58      
31 A" 1123 1070 2.19      
32 A" 1066 1016 0.69      
33 A" 981 935 42.46      
34 A" 819 780 1.81      
35 A" 691 658 0.17      
36 A" 307 292 1.88      
37 A" 217 207 2.31      
38 A" 183 175 1.34      
39 A" 99 94 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 30320.3 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 28889.2 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-121G*
ABC
0.43991 0.08129 0.07134

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.732 -1.232 0.000
C2 -0.986 -0.171 0.000
H3 -0.284 1.809 0.000
C4 0.000 0.753 0.000
H5 -2.959 -0.247 0.883
H6 -2.959 -0.247 -0.883
H7 -2.610 1.255 0.000
C8 -2.460 0.171 0.000
H9 1.935 0.969 -0.877
H10 1.935 0.969 0.877
C11 1.491 0.476 0.000
H12 2.973 -1.113 0.000
H13 1.494 -1.520 0.888
H14 1.494 -1.520 -0.888
C15 1.882 -1.010 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 H7 C8 H9 H10 C11 H12 H13 H14 C15
H11.09043.07392.11572.58992.58993.11592.22483.56793.56792.80363.70682.41392.41392.6242
C21.09042.10091.35112.16332.16332.16151.51313.25583.25582.55974.06862.95892.95892.9880
H33.07392.10091.09373.48743.48742.39072.72362.52982.52982.22004.37583.87743.87743.5555
C42.11571.35111.09373.24583.24582.65762.52762.13562.13561.51653.50992.86142.86142.5791
H52.58992.16333.48743.24581.76581.77691.09695.34135.04324.59406.05924.63134.95824.9801
H62.58992.16333.48743.24581.76581.77691.09695.04325.34134.59406.05924.95824.63134.9801
H73.11592.16152.39072.65761.77691.77691.09494.63764.63764.17416.06395.03285.03285.0308
C82.22481.51312.72362.52761.09691.09691.09494.55214.55213.96245.58174.39044.39044.4995
H93.56793.25582.52982.13565.34135.04324.63764.55211.75311.09952.48623.08302.52842.1652
H103.56793.25582.52982.13565.04325.34134.63764.55211.75311.09952.48622.52843.08302.1652
C112.80362.55972.22001.51654.59404.59404.17413.96241.09951.09952.17282.18482.18481.5367
H123.70684.06864.37583.50996.05926.05926.06395.58172.48622.48622.17281.77211.77211.0950
H132.41392.95893.87742.86144.63134.95825.03284.39043.08302.52842.18481.77211.77541.0952
H142.41392.95893.87742.86144.95824.63135.03284.39042.52843.08302.18481.77211.77541.0952
C152.62422.98803.55552.57914.98014.98015.03084.49952.16522.16521.53671.09501.09521.0952

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 119.740 H1 C2 C8 116.471
C2 C4 H3 118.103 C2 C4 C11 126.313
C2 C8 H5 110.957 C2 C8 H6 110.957
C2 C8 H7 110.931 H3 C4 C11 115.584
C4 C2 C8 123.789 C4 C11 H9 108.384
C4 C11 H10 108.384 C4 C11 C15 115.281
H5 C8 H6 107.205 H5 C8 H7 108.328
H6 C8 H7 108.328 H9 C11 H10 105.729
H9 C11 C15 109.316 H10 C11 C15 109.316
C11 C15 H12 110.179 C11 C15 H13 111.116
C11 C15 H14 111.116 H12 C15 H13 108.011
H12 C15 H14 108.011 H13 C15 H14 108.293
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability