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: TPSSh/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-196.570477
Energy at 298.15K-196.580479
HF Energy-196.570477
Nuclear repulsion energy170.871091
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 TPSSh/6-31G(2df,p)
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 3144 3034 61.59      
2 A 3121 3012 16.89      
3 A 3113 3004 30.06      
4 A 3109 3000 33.06      
5 A 3103 2995 29.25      
6 A 3073 2966 7.19      
7 A 3064 2957 24.84      
8 A 3031 2925 35.78      
9 A 3018 2913 32.96      
10 A 3009 2903 31.95      
11 A 1730 1669 2.45      
12 A 1519 1466 3.12      
13 A 1510 1457 4.30      
14 A 1505 1453 2.64      
15 A 1495 1442 3.46      
16 A 1488 1436 0.59      
17 A 1440 1389 6.14      
18 A 1411 1362 0.24      
19 A 1406 1357 2.89      
20 A 1331 1284 9.51      
21 A 1300 1254 0.18      
22 A 1278 1233 0.11      
23 A 1171 1130 0.39      
24 A 1090 1052 3.88      
25 A 1060 1023 0.80      
26 A 1041 1004 0.04      
27 A 1030 994 2.79      
28 A 1015 979 0.72      
29 A 937 904 9.67      
30 A 860 830 1.45      
31 A 786 758 3.28      
32 A 722 697 23.85      
33 A 562 542 6.02      
34 A 466 450 1.04      
35 A 295 285 0.03      
36 A 253 244 0.01      
37 A 213 206 0.00      
38 A 145 140 0.30      
39 A 58 56 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 29949.8 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 28901.5 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 TPSSh/6-31G(2df,p)
ABC
0.37178 0.08526 0.07803

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.193 -0.284 -0.412
H2 2.675 0.692 -0.542
H3 2.950 -0.987 -0.050
H4 1.854 -0.621 -1.397
C5 1.013 -0.190 0.571
H6 0.560 -1.179 0.697
H7 1.401 0.101 1.558
C8 -2.067 -0.676 -0.083
H9 -2.511 -0.913 -1.058
H10 -1.445 -1.522 0.219
H11 -2.899 -0.600 0.629
C12 -0.012 0.820 0.133
H13 0.371 1.835 0.026
C14 -1.303 0.616 -0.147
H15 -1.892 1.478 -0.459

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 H11 C12 H13 C14 H15
C11.09581.09501.09471.53832.16702.15734.29044.78943.89405.20702.52542.82843.61964.4488
H21.09581.77091.76842.18543.08282.52574.95625.45284.73815.84022.77362.63373.99824.6346
H31.09501.77091.77442.18492.51132.48375.02685.55374.43555.90133.47483.82394.54645.4489
H41.09471.76841.77442.18302.52403.07504.13614.38823.78245.16742.81103.20253.61414.3956
C51.53832.18542.18492.18301.09491.09943.18573.94882.81773.93401.50382.19302.55523.5044
H62.16703.08282.51132.52401.09491.75622.78613.54712.08973.50822.15373.09332.72123.7958
H72.15732.52572.48373.07501.09941.75623.91384.81353.53894.45462.13112.53263.23784.0994
C84.29044.95625.02684.13613.18572.78613.91381.09751.09281.09762.55033.50131.50182.1935
H94.78945.45285.55374.38823.94883.54714.81351.09751.77111.75903.26564.12702.15062.5417
H103.89404.73814.43553.78242.81772.08973.53891.09281.77111.77042.74643.82162.17363.1082
H115.20705.84025.90135.16743.93403.50824.45461.09761.75901.77043.25494.12152.15122.5528
C122.52542.77363.47482.81101.50382.15372.13112.55033.26562.74643.25491.09071.33672.0778
H132.82842.63373.82393.20252.19303.09332.53263.50134.12703.82164.12151.09072.07842.3416
C143.61963.99824.54643.61412.55522.72123.23781.50182.15062.17362.15121.33672.07841.0897
H154.44884.63465.44894.39563.50443.79584.09942.19352.54173.10822.55282.07782.34161.0897

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 109.613 C1 C5 H7 108.599
C1 C5 C12 112.224 H2 C1 H3 107.872
H2 C1 H4 107.664 H2 C1 C5 111.014
H3 C1 H4 108.256 H3 C1 C5 111.016
H4 C1 C5 110.882 C5 C12 H13 114.455
C5 C12 C14 128.106 H6 C5 H7 106.325
H6 C5 C12 110.968 H7 C5 C12 108.907
C8 C14 C12 127.824 C8 C14 H15 114.723
H9 C8 H10 107.921 H9 C8 H11 106.514
H9 C8 C14 110.697 H10 C8 H11 107.849
H10 C8 C14 112.855 H11 C8 C14 110.743
C12 C14 H15 117.453 H13 C12 C14 117.433
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability