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 C5H11N (Piperidine)

using model chemistry: MP2=FULL/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes NH axial 1A'

Conformer 1 (NH equatorial)

Jump to S1C2
Vibrational Frequencies calculated at MP2=FULL/6-31G
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/6-31G
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (NH axial)

Jump to S1C1
Energy calculated at MP2=FULL/6-31G
 hartrees
Energy at 0K-250.647818
Energy at 298.15K-250.662183
Nuclear repulsion energy255.602627
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=FULL/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3503 3328 1.27      
2 A' 3116 2960 67.25      
3 A' 3097 2943 58.38      
4 A' 3088 2934 38.11      
5 A' 3049 2897 43.08      
6 A' 3035 2884 31.18      
7 A' 3035 2883 18.81      
8 A' 1570 1492 4.22      
9 A' 1563 1485 8.10      
10 A' 1554 1476 2.47      
11 A' 1438 1366 1.57      
12 A' 1419 1348 0.42      
13 A' 1367 1298 0.36      
14 A' 1313 1248 6.75      
15 A' 1238 1176 3.40      
16 A' 1077 1023 1.73      
17 A' 1038 986 4.92      
18 A' 932 885 21.13      
19 A' 873 829 8.57      
20 A' 827 786 7.98      
21 A' 712 677 159.32      
22 A' 565 537 4.04      
23 A' 444 422 2.16      
24 A' 389 370 8.34      
25 A' 242 230 6.18      
26 A" 3113 2958 26.10      
27 A" 3088 2934 61.85      
28 A" 3047 2895 18.24      
29 A" 3034 2883 31.50      
30 A" 1558 1480 0.15      
31 A" 1550 1473 5.56      
32 A" 1527 1451 5.10      
33 A" 1426 1355 1.66      
34 A" 1411 1340 0.47      
35 A" 1405 1335 1.74      
36 A" 1335 1268 0.70      
37 A" 1241 1179 11.03      
38 A" 1158 1100 1.13      
39 A" 1125 1069 13.95      
40 A" 1100 1045 8.23      
41 A" 984 935 5.50      
42 A" 884 840 0.00      
43 A" 830 789 0.26      
44 A" 459 436 1.22      
45 A" 242 230 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 35499.2 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 33727.8 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 MP2=FULL/6-31G
ABC
0.14571 0.14380 0.08235

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.653 1.334 0.000
H2 0.592 2.433 0.000
H3 1.725 1.071 0.000
C4 -0.008 0.756 1.279
C5 -0.008 0.756 -1.279
C6 -0.008 -0.795 -1.239
C7 -0.008 -0.795 1.239
N8 -0.615 -1.356 0.000
H9 -1.631 -1.245 0.000
H10 0.515 1.113 2.180
H11 0.515 1.113 -2.180
H12 -1.051 1.113 1.345
H13 -1.051 1.113 -1.345
H14 1.030 -1.161 -1.286
H15 1.030 -1.161 1.286
H16 -0.544 -1.214 -2.103
H17 -0.544 -1.214 2.103

Atom - Atom Distances (Å)
  C1 H2 H3 C4 C5 C6 C7 N8 H9 H10 H11 H12 H13 H14 H15 H16 H17
C11.10091.10421.55161.55162.55082.55082.97343.44492.19592.19592.18132.18132.83202.83203.51353.5135
H21.10091.77202.19332.19333.50993.50993.97644.29782.55012.55012.49992.49993.84233.84234.36044.3604
H31.10421.77202.17722.17722.83262.83263.37104.07782.49392.49393.08463.08462.66782.66783.84583.8458
C41.55162.19332.17722.55832.95751.55152.54202.87621.10193.51721.10392.84573.36612.17983.95002.2010
C51.55162.19332.17722.55831.55152.95752.54202.87623.51721.10192.84571.10392.17983.36612.20103.9500
C62.55083.50992.83262.95751.55152.47801.48892.09073.95092.19163.37682.17691.10212.75451.09903.4100
C72.55083.50992.83261.55152.95752.47801.48892.09072.19163.95092.17693.37682.75451.10213.41001.0990
N82.97343.97643.37102.54202.54201.48891.48891.02253.48233.48232.84462.84462.09692.09692.10862.1086
H93.44494.29784.07782.87622.87622.09072.09071.02253.86303.86302.77562.77562.95702.95702.36732.3673
H102.19592.55012.49391.10193.51723.95092.19163.48233.86304.36091.77513.85724.17752.49744.98822.5580
H112.19592.55012.49393.51721.10192.19163.95093.48233.86304.36093.85721.77512.49744.17752.55804.9882
H122.18132.49993.08461.10392.84573.37682.17692.84462.77561.77513.85722.68924.05203.08284.18972.4991
H132.18132.49993.08462.84571.10392.17693.37682.84462.77563.85721.77512.68923.08284.05202.49914.1897
H142.83203.84232.66783.36612.17981.10212.75452.09692.95704.17752.49744.05203.08282.57161.77423.7366
H152.83203.84232.66782.17983.36612.75451.10212.09692.95702.49744.17753.08284.05202.57163.73661.7742
H163.51354.36043.84583.95002.20101.09903.41002.10862.36734.98822.55804.18972.49911.77423.73664.2052
H173.51354.36043.84582.20103.95003.41001.09902.10862.36732.55804.98822.49914.18973.73661.77424.2052

picture of Piperidine state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 C7 110.570 C1 C4 H10 110.547
C1 C4 H12 109.299 C1 C5 C6 110.570
C1 C5 H11 110.547 C1 C5 H13 109.299
H2 C1 H3 106.948 H2 C1 C4 110.406
H2 C1 C5 110.406 H3 C1 C4 108.960
H3 C1 C5 108.960 C4 C1 C5 111.051
C4 C7 N8 113.439 C4 C7 H15 109.291
C4 C7 H17 111.128 C5 C6 N8 113.439
C5 C6 H14 109.291 C5 C6 H16 111.128
C6 C5 H11 110.214 C6 C5 H13 108.961
C6 N8 C7 112.646 C6 N8 H9 111.352
C7 C4 H10 110.214 C7 C4 H12 108.961
C7 N8 H9 111.352 N8 C6 H14 107.117
N8 C6 H16 108.190 N8 C7 H15 107.117
N8 C7 H17 108.190 H10 C4 H12 107.168
H11 C5 H13 107.168 H14 C6 H16 107.430
H15 C7 H17 107.430
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability