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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: TPSSh/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 TPSSh/3-21G*
 hartrees
Energy at 0K-209.027139
Energy at 298.15K 
HF Energy-209.027139
Nuclear repulsion energy159.651465
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 TPSSh/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 3600 3477 56.91      
2 A1 3301 3188 0.07      
3 A1 3273 3161 5.82      
4 A1 1478 1427 3.55      
5 A1 1401 1353 6.80      
6 A1 1159 1119 0.54      
7 A1 1100 1063 5.76      
8 A1 1029 994 30.46      
9 A1 915 884 0.38      
10 A2 901 870 0.00      
11 A2 714 689 0.00      
12 A2 636 614 0.00      
13 B1 860 831 2.88      
14 B1 748 722 155.22      
15 B1 644 622 2.78      
16 B1 586 566 121.08      
17 B2 3291 3178 6.25      
18 B2 3261 3149 2.74      
19 B2 1566 1512 9.55      
20 B2 1428 1379 8.93      
21 B2 1322 1277 0.00      
22 B2 1171 1131 0.82      
23 B2 1064 1027 27.23      
24 B2 902 871 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 18174.2 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 17550.9 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 TPSSh/3-21G*
ABC
0.29966 0.29684 0.14912

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.133
H2 0.000 0.000 2.147
C3 0.000 1.138 0.331
C4 0.000 -1.138 0.331
C5 0.000 0.717 -0.988
C6 0.000 -0.717 -0.988
H7 0.000 2.127 0.757
H8 0.000 -2.127 0.757
H9 0.000 1.358 -1.856
H10 0.000 -1.358 -1.856

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.01341.39221.39222.23942.23942.16052.16053.28323.2832
H21.01342.14262.14263.21583.21582.54122.54124.22664.2266
C31.39222.14262.27551.38462.27631.07743.29292.19793.3184
C41.39222.14262.27552.27631.38463.29291.07743.31842.1979
C52.23943.21581.38462.27631.43452.24363.33731.07862.2494
C62.23943.21582.27631.38461.43453.33732.24362.24941.0786
H72.16052.54121.07743.29292.24363.33734.25492.72364.3560
H82.16052.54123.29291.07743.33732.24364.25494.35602.7236
H93.28324.22662.19793.31841.07862.24942.72364.35602.7161
H103.28324.22663.31842.19792.24941.07864.35602.72362.7161

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.507 N1 C3 H7 121.536
N1 C4 C6 107.507 N1 C4 H8 121.536
H2 N1 C3 125.187 H2 N1 C4 125.187
C3 N1 C4 109.625 C3 C5 C6 107.680
C3 C5 H9 125.872 C4 C6 C5 107.680
C4 C6 H10 125.872 C5 C3 H7 130.957
C5 C6 H10 126.448 C6 C4 H8 130.957
C6 C5 H9 126.448
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.703      
2 H 0.333      
3 C 0.044      
4 C 0.044      
5 C -0.274      
6 C -0.274      
7 H 0.220      
8 H 0.220      
9 H 0.195      
10 H 0.195      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.989 1.989
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.880 0.000 0.000
y 0.000 7.412 0.000
z 0.000 0.000 7.297


<r2> (average value of r2) Å2
<r2> 86.362
(<r2>)1/2 9.293