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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: QCISD(T)/cc-pVTZ

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(T)/cc-pVTZ
 hartrees
Energy at 0K-209.793590
Energy at 298.15K 
HF Energy-208.883287
Nuclear repulsion energy160.739003
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(T)/cc-pVTZ
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 3702 3511        
2 A1 3279 3110        
3 A1 3257 3090        
4 A1 1507 1430        
5 A1 1422 1349        
6 A1 1166 1106        
7 A1 1094 1038        
8 A1 1032 979        
9 A1 889 843        
10 A2 855 811        
11 A2 689 654        
12 A2 615 584        
13 B1 825 783        
14 B1 732 694        
15 B1 634 601        
16 B1 438 416        
17 B2 3272 3104        
18 B2 3246 3079        
19 B2 1571 1491        
20 B2 1464 1388        
21 B2 1309 1242        
22 B2 1158 1099        
23 B2 1065 1011        
24 B2 868 823        

Unscaled Zero Point Vibrational Energy (zpe) 18044.1 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 17116.6 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(T)/cc-pVTZ
ABC
0.30464 0.30012 0.15118

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.123
H2 0.000 0.000 2.126
C3 0.000 1.125 0.332
C4 0.000 -1.125 0.332
C5 0.000 0.714 -0.985
C6 0.000 -0.714 -0.985
H7 0.000 2.111 0.766
H8 0.000 -2.111 0.766
H9 0.000 1.363 -1.845
H10 0.000 -1.363 -1.845

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00281.37491.37492.22512.22512.14082.14083.26593.2659
H21.00282.11692.11693.19123.19122.51102.51104.19824.1982
C31.37492.11692.24981.37952.26201.07703.26462.19043.3062
C41.37492.11692.24982.26201.37953.26461.07703.30622.1904
C52.22513.19121.37952.26201.42832.23933.32331.07772.2483
C62.22513.19122.26201.37951.42833.32332.23932.24831.0777
H72.14082.51101.07703.26462.23933.32334.22162.71584.3455
H82.14082.51103.26461.07703.32332.23934.22164.34552.7158
H93.26594.19822.19043.30621.07772.24832.71584.34552.7259
H103.26594.19823.30622.19042.24831.07774.34552.71582.7259

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.773 N1 C3 H7 121.176
N1 C4 C6 107.773 N1 C4 H8 121.176
H2 N1 C3 125.096 H2 N1 C4 125.096
C3 N1 C4 109.809 C3 C5 C6 107.322
C3 C5 H9 125.663 C4 C6 C5 107.322
C4 C6 H10 125.663 C5 C3 H7 131.051
C5 C6 H10 127.015 C6 C4 H8 131.051
C6 C5 H9 127.015
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability