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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: QCISD/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/6-31+G**
 hartrees
Energy at 0K-209.566087
Energy at 298.15K 
HF Energy-208.827163
Nuclear repulsion energy160.595104
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 QCISD/6-31+G**
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 3763 3558 75.16      
2 A1 3339 3157 0.14      
3 A1 3317 3136 4.16      
4 A1 1543 1459 15.68      
5 A1 1466 1386 4.08      
6 A1 1190 1125 2.38      
7 A1 1115 1054 11.55      
8 A1 1057 1000 32.18      
9 A1 904 855 0.59      
10 A2 811 766 0.00      
11 A2 681 643 0.00      
12 A2 586 554 0.00      
13 B1 808 764 3.44      
14 B1 726 686 193.43      
15 B1 620 586 0.37      
16 B1 401 379 79.74      
17 B2 3333 3151 4.92      
18 B2 3306 3125 3.07      
19 B2 1620 1531 1.79      
20 B2 1505 1423 12.83      
21 B2 1346 1272 1.07      
22 B2 1189 1124 1.49      
23 B2 1096 1036 21.69      
24 B2 883 835 1.99      

Unscaled Zero Point Vibrational Energy (zpe) 18301.9 cm-1
Scaled (by 0.9454) Zero Point Vibrational Energy (zpe) 17302.6 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 QCISD/6-31+G**
ABC
0.30374 0.29993 0.15091

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.124
H2 0.000 0.000 2.129
C3 0.000 1.127 0.331
C4 0.000 -1.127 0.331
C5 0.000 0.715 -0.984
C6 0.000 -0.715 -0.984
H7 0.000 2.113 0.765
H8 0.000 -2.113 0.765
H9 0.000 1.362 -1.846
H10 0.000 -1.362 -1.846

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00451.37791.37792.22652.22652.14322.14323.26803.2680
H21.00452.12142.12143.19413.19412.51482.51484.20204.2020
C31.37792.12142.25401.37872.26381.07703.26882.19043.3075
C41.37792.12142.25402.26381.37873.26881.07703.30752.1904
C52.22653.19411.37872.26381.43042.23913.32541.07792.2493
C62.22653.19412.26381.37871.43043.32542.23912.24931.0779
H72.14322.51481.07703.26882.23913.32544.22582.71704.3470
H82.14322.51483.26881.07703.32542.23914.22584.34702.7170
H93.26804.20202.19043.30751.07792.24932.71704.34702.7247
H103.26804.20203.30752.19042.24931.07794.34702.71702.7247

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.745 N1 C3 H7 121.140
N1 C4 C6 107.745 N1 C4 H8 121.140
H2 N1 C3 125.124 H2 N1 C4 125.124
C3 N1 C4 109.751 C3 C5 C6 107.380
C3 C5 H9 125.722 C4 C6 C5 107.380
C4 C6 H10 125.722 C5 C3 H7 131.115
C5 C6 H10 126.898 C6 C4 H8 131.115
C6 C5 H9 126.898
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability