return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP3=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP3=FULL/6-31G*
 hartrees
Energy at 0K-195.861155
Energy at 298.15K-195.871220
HF Energy-195.141311
Nuclear repulsion energy171.211524
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 MP3=FULL/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 3211 3013 58.49      
2 A 3198 3000 4.11      
3 A 3185 2988 43.12      
4 A 3182 2985 22.35      
5 A 3177 2981 12.58      
6 A 3155 2960 20.89      
7 A 3151 2957 6.90      
8 A 3100 2909 24.83      
9 A 3097 2906 20.95      
10 A 3091 2900 26.77      
11 A 1797 1686 1.23      
12 A 1569 1472 8.88      
13 A 1560 1464 3.66      
14 A 1559 1463 4.11      
15 A 1548 1452 3.42      
16 A 1546 1450 3.74      
17 A 1495 1403 6.26      
18 A 1472 1381 2.34      
19 A 1466 1375 1.76      
20 A 1389 1303 4.73      
21 A 1344 1261 0.13      
22 A 1323 1241 0.15      
23 A 1207 1133 0.54      
24 A 1133 1063 4.17      
25 A 1101 1033 0.80      
26 A 1088 1021 0.07      
27 A 1076 1009 1.83      
28 A 1011 949 0.22      
29 A 974 914 7.96      
30 A 894 838 1.17      
31 A 816 766 3.09      
32 A 740 694 31.72      
33 A 577 541 5.76      
34 A 479 449 1.18      
35 A 316 297 0.03      
36 A 263 247 0.02      
37 A 229 214 0.01      
38 A 116 109 0.25      
39 A 47 45 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 30838.6 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 28935.8 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 MP3=FULL/6-31G*
ABC
0.36520 0.08642 0.07898

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.173 -0.297 -0.416
H2 2.660 0.671 -0.571
H3 2.928 -1.002 -0.056
H4 1.810 -0.649 -1.387
C5 1.016 -0.174 0.581
H6 0.557 -1.156 0.734
H7 1.413 0.140 1.555
C8 -2.054 -0.683 -0.075
H9 -2.490 -0.933 -1.049
H10 -1.421 -1.517 0.236
H11 -2.884 -0.603 0.637
C12 -0.009 0.830 0.128
H13 0.374 1.844 0.008
C14 -1.300 0.615 -0.154
H15 -1.896 1.467 -0.480

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 H11 C12 H13 C14 H15
C11.09511.09471.09431.53242.16102.15744.25844.74793.85115.17402.51542.82853.59994.4357
H21.09511.77151.76942.17823.07602.52114.93005.41494.70075.81512.76372.63353.98214.6262
H31.09471.77151.77462.17962.50422.48924.99315.50904.38995.86703.46713.82514.52815.4368
H41.09431.76941.77462.17432.51463.07154.08074.32193.71865.11132.79063.19703.57554.3627
C51.53242.17822.17962.17431.09431.09803.18033.93972.80383.92331.50432.19382.55413.5070
H62.16103.07602.50422.51461.09431.75682.77423.53712.07173.48612.15153.09182.71483.7910
H72.15742.52112.48923.07151.09801.75683.91904.81323.53834.45632.12992.52523.24144.1056
C84.25844.93004.99314.08073.18032.77423.91901.09601.09221.09612.55183.50631.50342.1939
H94.74795.41495.50904.32193.93973.53714.81321.09601.77071.76303.26254.12732.14772.5371
H103.85114.70074.38993.71862.80382.07173.53831.09221.77071.77052.74083.81782.17063.1056
H115.17405.81515.86705.11133.92333.48614.45631.09611.76301.77053.25184.12322.14882.5512
C122.51542.76373.46712.79061.50432.15152.12992.55183.26252.74083.25181.09151.33832.0825
H132.82852.63353.82513.19702.19383.09182.52523.50634.12733.81784.12321.09152.08362.3531
C143.59993.98214.52813.57552.55412.71483.24141.50342.14772.17062.14881.33832.08361.0904
H154.43574.62625.43684.36273.50703.79104.10562.19392.53713.10562.55122.08252.35311.0904

picture of 2-Pentene, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 109.587 C1 C5 H7 109.083
C1 C5 C12 111.845 H2 C1 H3 107.995
H2 C1 H4 107.841 H2 C1 C5 110.896
H3 C1 H4 108.327 H3 C1 C5 111.027
H4 C1 C5 110.636 C5 C12 H13 114.435
C5 C12 C14 127.833 H6 C5 H7 106.522
H6 C5 C12 110.788 H7 C5 C12 108.855
C8 C14 C12 127.698 C8 C14 H15 114.591
H9 C8 H10 108.037 H9 C8 H11 107.078
H9 C8 C14 110.447 H10 C8 H11 108.013
H10 C8 C14 112.533 H11 C8 C14 110.534
C12 C14 H15 117.711 H13 C12 C14 117.726
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability