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All results from a given calculation for C5H11N (Piperidine)

using model chemistry: MP2=FULL/3-21G*

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/3-21G*
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/3-21G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (NH axial)

Jump to S1C1
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-249.371290
Energy at 298.15K-249.385666
Nuclear repulsion energy255.861700
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/3-21G*
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' 3402 3225 3.33      
2 A' 3136 2973 75.81      
3 A' 3124 2962 20.36      
4 A' 3116 2954 21.05      
5 A' 3079 2919 29.87      
6 A' 3069 2910 16.93      
7 A' 3069 2909 21.63      
8 A' 1590 1507 4.85      
9 A' 1582 1500 10.90      
10 A' 1572 1490 2.81      
11 A' 1442 1367 0.17      
12 A' 1426 1352 0.43      
13 A' 1373 1301 1.25      
14 A' 1326 1257 5.01      
15 A' 1232 1168 4.53      
16 A' 1076 1020 3.29      
17 A' 1021 968 1.93      
18 A' 947 898 40.38      
19 A' 871 825 2.84      
20 A' 816 773 17.15      
21 A' 735 697 111.56      
22 A' 559 530 1.42      
23 A' 441 418 1.72      
24 A' 399 378 6.15      
25 A' 247 234 5.46      
26 A" 3133 2970 8.95      
27 A" 3117 2955 52.38      
28 A" 3077 2917 23.22      
29 A" 3068 2909 19.82      
30 A" 1575 1493 0.16      
31 A" 1569 1488 4.19      
32 A" 1525 1445 4.00      
33 A" 1427 1353 0.00      
34 A" 1419 1345 0.01      
35 A" 1413 1339 2.74      
36 A" 1353 1283 0.34      
37 A" 1245 1180 6.27      
38 A" 1174 1113 1.04      
39 A" 1085 1029 18.22      
40 A" 1080 1024 2.01      
41 A" 986 935 7.61      
42 A" 864 819 0.01      
43 A" 827 784 0.11      
44 A" 459 435 1.36      
45 A" 245 232 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 35644.3 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 33790.8 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/3-21G*
ABC
0.14635 0.14358 0.08281

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.676 1.321 0.000
H2 0.643 2.417 0.000
H3 1.732 1.017 0.000
C4 -0.008 0.758 1.274
C5 -0.008 0.758 -1.274
C6 -0.008 -0.794 -1.235
C7 -0.008 -0.794 1.235
N8 -0.643 -1.360 0.000
H9 -1.647 -1.135 0.000
H10 0.506 1.112 2.176
H11 0.506 1.112 -2.176
H12 -1.047 1.114 1.313
H13 -1.047 1.114 -1.313
H14 1.029 -1.152 -1.253
H15 1.029 -1.152 1.253
H16 -0.528 -1.207 -2.107
H17 -0.528 -1.207 2.107

Atom - Atom Distances (Å)
  C1 H2 H3 C4 C5 C6 C7 N8 H9 H10 H11 H12 H13 H14 H15 H16 H17
C11.09681.09911.55161.55162.54322.54322.98783.38082.19302.19302.17612.17612.79502.79503.50433.5043
H21.09681.77422.19092.19093.50193.50193.99004.22662.54172.54172.50562.50563.80283.80284.35274.3527
H31.09911.77422.17232.17232.79912.79913.36034.00642.49992.49993.07533.07532.60212.60213.80723.8072
C41.55162.19092.17232.54712.94991.55252.55122.80901.09753.50591.09882.80983.33312.17353.94442.1966
C51.55162.19092.17232.54711.55252.94992.55122.80903.50591.09752.80981.09882.17353.33312.19663.9444
C62.54323.50192.79912.94991.55252.47021.49952.08023.94142.18693.34852.17411.09722.71961.09583.4073
C72.54323.50192.79911.55252.94992.47021.49952.08022.18693.94142.17413.34852.71961.09723.40731.0958
N82.98783.99003.36032.55122.55121.49951.49951.02853.48773.48772.82942.82942.10002.10002.11562.1156
H93.38084.22664.00642.80902.80902.08022.08021.02853.79733.79732.67252.67252.95492.95492.38652.3865
H102.19302.54172.49991.09753.50593.94142.18693.48773.79734.35271.77683.81914.14272.50004.97912.5397
H112.19302.54172.49993.50591.09752.18693.94143.48773.79734.35273.81911.77682.50004.14272.53974.9791
H122.17612.50563.07531.09882.80983.34852.17412.82942.67251.77683.81912.62564.00383.07384.16542.5073
H132.17612.50563.07532.80981.09882.17413.34852.82942.67253.81911.77682.62563.07384.00382.50734.1654
H142.79503.80282.60213.33312.17351.09722.71962.10002.95494.14272.50004.00383.07382.50691.77653.7040
H152.79503.80282.60212.17353.33312.71961.09722.10002.95492.50004.14273.07384.00382.50693.70401.7765
H163.50434.35273.80723.94442.19661.09583.40732.11562.38654.97912.53974.16542.50731.77653.70404.2138
H173.50434.35273.80722.19663.94443.40731.09582.11562.38652.53974.97912.50734.16543.70401.77654.2138

picture of Piperidine state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 C7 110.030 C1 C4 H10 110.577
C1 C4 H12 109.185 C1 C5 C6 110.030
C1 C5 H11 110.577 C1 C5 H13 109.185
H2 C1 H3 107.792 H2 C1 C4 110.457
H2 C1 C5 110.457 H3 C1 C4 108.872
H3 C1 C5 108.872 C4 C1 C5 110.325
C4 C7 N8 113.414 C4 C7 H15 109.010
C4 C7 H17 110.901 C5 C6 N8 113.414
C5 C6 H14 109.010 C5 C6 H16 110.901
C6 C5 H11 110.039 C6 C5 H13 108.969
C6 N8 C7 110.907 C6 N8 H9 109.328
C7 C4 H10 110.039 C7 C4 H12 108.969
C7 N8 H9 109.328 N8 C6 H14 106.922
N8 C6 H16 108.196 N8 C7 H15 106.922
N8 C7 H17 108.196 H10 C4 H12 107.993
H11 C5 H13 107.993 H14 C6 H16 108.203
H15 C7 H17 108.203
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability