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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: MP2/6-31G(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 MP2/6-31G(2df,p)
 hartrees
Energy at 0K-209.639414
Energy at 298.15K-209.645499
HF Energy-208.830693
Nuclear repulsion energy161.129192
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 MP2/6-31G(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 3725 3518 82.86      
2 A1 3331 3146 0.07      
3 A1 3310 3126 0.66      
4 A1 1517 1433 5.95      
5 A1 1439 1359 4.72      
6 A1 1182 1117 2.33      
7 A1 1119 1057 4.41      
8 A1 1056 997 23.25      
9 A1 890 841 0.09      
10 A2 854 807 0.00      
11 A2 675 637 0.00      
12 A2 623 588 0.00      
13 B1 808 763 13.79      
14 B1 739 698 108.61      
15 B1 650 614 5.96      
16 B1 513 484 63.10      
17 B2 3323 3139 0.82      
18 B2 3300 3117 1.21      
19 B2 1569 1482 3.50      
20 B2 1499 1416 12.56      
21 B2 1314 1241 1.91      
22 B2 1184 1118 2.70      
23 B2 1077 1017 21.90      
24 B2 867 819 0.84      

Unscaled Zero Point Vibrational Energy (zpe) 18281.6 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 17267.0 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 MP2/6-31G(2df,p)
ABC
0.30703 0.30094 0.15198

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.117
H2 0.000 0.000 2.122
C3 0.000 1.122 0.334
C4 0.000 -1.122 0.334
C5 0.000 0.708 -0.984
C6 0.000 -0.708 -0.984
H7 0.000 2.105 0.774
H8 0.000 -2.105 0.774
H9 0.000 1.356 -1.846
H10 0.000 -1.356 -1.846

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00511.36811.36812.21742.21742.13302.13303.25823.2582
H21.00512.11072.11073.18603.18602.49972.49974.19304.1930
C31.36812.11072.24451.38212.25601.07703.25742.19253.3008
C41.36812.11072.24452.25601.38213.25741.07703.30082.1925
C52.21743.18601.38212.25601.41642.24603.31791.07792.2370
C62.21743.18602.25601.38211.41643.31792.24602.23701.0779
H72.13302.49971.07703.25742.24603.31794.21062.72484.3412
H82.13302.49973.25741.07703.31792.24604.21064.34122.7248
H93.25824.19302.19253.30081.07792.23702.72484.34122.7126
H103.25824.19303.30082.19252.23701.07794.34122.72482.7126

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.459 N1 C3 H7 121.003
N1 C4 C6 107.459 N1 C4 H8 121.003
H2 N1 C3 124.889 H2 N1 C4 124.889
C3 N1 C4 110.221 C3 C5 C6 107.430
C3 C5 H9 125.610 C4 C6 C5 107.430
C4 C6 H10 125.610 C5 C3 H7 131.538
C5 C6 H10 126.960 C6 C4 H8 131.538
C6 C5 H9 126.960
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability