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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: QCISD/3-21G

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/3-21G
 hartrees
Energy at 0K-208.137271
Energy at 298.15K-208.143391
HF Energy-207.643400
Nuclear repulsion energy158.858633
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/3-21G
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 3605 3494 62.87      
2 A1 3259 3159 0.15      
3 A1 3232 3132 4.34      
4 A1 1484 1438 4.29      
5 A1 1395 1352 9.29      
6 A1 1162 1126 0.02      
7 A1 1074 1041 15.02      
8 A1 1018 987 24.40      
9 A1 927 898 0.79      
10 A2 829 804 0.00      
11 A2 707 685 0.00      
12 A2 624 605 0.00      
13 B1 832 806 1.70      
14 B1 733 711 135.20      
15 B1 636 617 0.32      
16 B1 555 538 135.99      
17 B2 3249 3149 6.37      
18 B2 3221 3122 2.10      
19 B2 1572 1524 10.79      
20 B2 1441 1396 13.97      
21 B2 1334 1293 0.32      
22 B2 1175 1139 0.00      
23 B2 1064 1031 16.43      
24 B2 914 885 0.86      

Unscaled Zero Point Vibrational Energy (zpe) 18020.2 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 17465.2 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/3-21G
ABC
0.29616 0.29421 0.14759

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.142
H2 0.000 0.000 2.154
C3 0.000 1.143 0.331
C4 0.000 -1.143 0.331
C5 0.000 0.725 -0.992
C6 0.000 -0.725 -0.992
H7 0.000 2.138 0.757
H8 0.000 -2.138 0.757
H9 0.000 1.368 -1.863
H10 0.000 -1.368 -1.863

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.01201.40131.40132.25292.25292.17202.17203.30153.3015
H21.01202.15162.15163.22763.22762.55362.55364.24334.2433
C31.40132.15162.28551.38672.28801.08233.30802.20533.3338
C41.40132.15162.28552.28801.38673.30801.08233.33382.2053
C52.25293.22761.38672.28801.44912.24793.35391.08322.2664
C62.25293.22762.28801.38671.44913.35392.24792.26641.0832
H72.17202.55361.08233.30802.24793.35394.27532.73084.3761
H82.17202.55363.30801.08233.35392.24794.27534.37612.7308
H93.30154.24332.20533.33381.08322.26642.73084.37612.7351
H103.30154.24333.33382.20532.26641.08324.37612.73082.7351

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.814 N1 C3 H7 121.451
N1 C4 C6 107.814 N1 C4 H8 121.451
H2 N1 C3 125.366 H2 N1 C4 125.366
C3 N1 C4 109.269 C3 C5 C6 107.552
C3 C5 H9 126.036 C4 C6 C5 107.552
C4 C6 H10 126.036 C5 C3 H7 130.735
C5 C6 H10 126.412 C6 C4 H8 130.735
C6 C5 H9 126.412
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability