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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-33.612665
Energy at 298.15K-33.622642
HF Energy-33.163647
Nuclear repulsion energy94.712271
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' 3106 3032 38.61      
2 A' 3070 2996 44.83      
3 A' 3068 2995 58.36      
4 A' 3061 2987 18.82      
5 A' 2969 2897 24.98      
6 A' 2957 2886 49.22      
7 A' 2955 2884 52.83      
8 A' 1667 1627 0.02      
9 A' 1534 1498 6.68      
10 A' 1532 1495 9.18      
11 A' 1516 1480 1.30      
12 A' 1458 1423 5.24      
13 A' 1448 1413 3.72      
14 A' 1402 1369 6.49      
15 A' 1344 1311 0.68      
16 A' 1333 1301 0.29      
17 A' 1154 1126 0.99      
18 A' 1091 1064 2.39      
19 A' 1044 1019 1.08      
20 A' 951 929 5.99      
21 A' 851 831 0.07      
22 A' 569 555 0.51      
23 A' 361 353 0.14      
24 A' 207 202 0.21      
25 A" 3072 2999 56.44      
26 A" 3046 2973 38.44      
27 A" 3005 2933 26.77      
28 A" 1527 1490 7.03      
29 A" 1494 1458 7.39      
30 A" 1281 1250 0.60      
31 A" 1130 1103 2.37      
32 A" 1074 1048 0.48      
33 A" 965 941 41.25      
34 A" 820 801 2.56      
35 A" 691 674 0.10      
36 A" 290 283 2.10      
37 A" 213 208 2.56      
38 A" 175 171 0.82      
39 A" 83 81 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 29755.5 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 29041.4 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
0.42752 0.07909 0.06938

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 -0.739 -1.257 0.000
C2 -0.995 -0.190 0.000
H3 -0.288 1.817 0.000
C4 0.000 0.755 0.000
H5 -2.994 -0.273 0.891
H6 -2.994 -0.273 -0.891
H7 -2.645 1.238 0.000
C8 -2.492 0.145 0.000
H9 1.963 0.977 -0.886
H10 1.963 0.977 0.886
C11 1.516 0.484 0.000
H12 3.014 -1.128 0.000
H13 1.525 -1.541 0.895
H14 1.525 -1.541 -0.895
C15 1.916 -1.026 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 H7 C8 H9 H10 C11 H12 H13 H14 C15
H11.09753.10752.14372.61712.61713.14052.24543.61593.61592.84893.75532.45042.45042.6646
C21.09752.12831.37232.19042.19042.18271.53453.30083.30082.59994.11752.99562.99563.0286
H33.10752.12831.10073.53363.53362.42722.76662.56122.56122.24364.42513.91993.91993.5980
C42.14371.37231.10073.28883.28882.68912.56582.16502.16501.54023.55412.89772.89772.6162
H52.61712.19043.53363.28881.78191.78881.10495.41235.11234.65946.13414.69355.02165.0468
H62.61712.19043.53363.28881.78191.78881.10495.11235.41234.65946.13415.02164.69355.0468
H73.14052.18272.42722.68911.78881.78881.10374.70004.70004.22936.13445.09065.09065.0925
C82.24541.53452.76662.56581.10491.10491.10374.61804.61804.02275.65194.44754.44754.5612
H93.61593.30082.56122.16505.41235.11234.70004.61801.77181.10782.51373.11442.55542.1908
H103.61593.30082.56122.16505.11235.41234.70004.61801.77181.10782.51372.55543.11442.1908
C112.84892.59992.24361.54024.65944.65944.22934.02271.10781.10782.20062.21362.21361.5624
H123.75534.11754.42513.55416.13416.13416.13445.65192.51372.51372.20061.78591.78591.1032
H132.45042.99563.91992.89774.69355.02165.09064.44753.11442.55542.21361.78591.78911.1035
H142.45042.99563.91992.89775.02164.69355.09064.44752.55543.11442.21361.78591.78911.1035
C152.66463.02863.59802.61625.04685.04685.09254.56122.19082.19081.56241.10321.10351.1035

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 120.034 H1 C2 C8 116.121
C2 C4 H3 118.350 C2 C4 C11 126.330
C2 C8 H5 111.132 C2 C8 H6 111.132
C2 C8 H7 110.595 H3 C4 C11 115.320
C4 C2 C8 123.845 C4 C11 H9 108.592
C4 C11 H10 108.592 C4 C11 C15 114.963
H5 C8 H6 107.488 H5 C8 H7 108.182
H6 C8 H7 108.182 H9 C11 H10 106.198
H9 C11 C15 109.069 H10 C11 C15 109.069
C11 C15 H12 110.097 C11 C15 H13 111.098
C11 C15 H14 111.098 H12 C15 H13 108.061
H12 C15 H14 108.061 H13 C15 H14 108.316
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability