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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: MP2=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-209.680404
Energy at 298.15K 
HF Energy-208.831238
Nuclear repulsion energy161.546878
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(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 A1 3738 3513 82.97      
2 A1 3341 3140 0.09      
3 A1 3319 3120 0.60      
4 A1 1522 1430 6.28      
5 A1 1446 1359 4.38      
6 A1 1188 1116 2.46      
7 A1 1124 1057 4.04      
8 A1 1060 996 23.54      
9 A1 896 842 0.08      
10 A2 859 807 0.00      
11 A2 679 638 0.00      
12 A2 633 595 0.00      
13 B1 812 763 12.83      
14 B1 743 698 109.18      
15 B1 658 619 4.91      
16 B1 527 496 64.38      
17 B2 3332 3132 0.87      
18 B2 3310 3111 1.11      
19 B2 1576 1481 3.42      
20 B2 1507 1416 12.46      
21 B2 1316 1237 2.11      
22 B2 1191 1119 3.00      
23 B2 1081 1016 21.90      
24 B2 871 819 0.83      

Unscaled Zero Point Vibrational Energy (zpe) 18363.6 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 17259.9 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(2df,p)
ABC
0.30867 0.30252 0.15278

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.114
H2 0.000 0.000 2.117
C3 0.000 1.119 0.334
C4 0.000 -1.119 0.334
C5 0.000 0.706 -0.982
C6 0.000 -0.706 -0.982
H7 0.000 2.101 0.771
H8 0.000 -2.101 0.771
H9 0.000 1.354 -1.841
H10 0.000 -1.354 -1.841

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00361.36391.36392.21142.21142.12902.12903.25043.2504
H21.00362.10552.10553.17863.17862.49562.49564.18364.1836
C31.36392.10552.23761.37862.24981.07543.24972.18743.2933
C41.36392.10552.23762.24981.37863.24971.07543.29332.1874
C52.21143.17861.37862.24981.41272.24013.30991.07622.2327
C62.21143.17862.24981.37861.41273.30992.24012.23271.0762
H72.12902.49561.07543.24972.24013.30994.20262.71674.3318
H82.12902.49563.24971.07543.30992.24014.20264.33182.7167
H93.25044.18362.18743.29331.07622.23272.71674.33182.7088
H103.25044.18363.29332.18742.23271.07624.33182.71672.7088

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.478 N1 C3 H7 121.116
N1 C4 C6 107.478 N1 C4 H8 121.116
H2 N1 C3 124.887 H2 N1 C4 124.887
C3 N1 C4 110.227 C3 C5 C6 107.409
C3 C5 H9 125.565 C4 C6 C5 107.409
C4 C6 H10 125.565 C5 C3 H7 131.406
C5 C6 H10 127.026 C6 C4 H8 131.406
C6 C5 H9 127.026
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability