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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: mPW1PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-31G**
 hartrees
Energy at 0K-210.125928
Energy at 298.15K-210.132025
HF Energy-210.125928
Nuclear repulsion energy161.346824
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 mPW1PW91/6-31G**
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 3740 3559 65.52      
2 A1 3313 3153 0.11      
3 A1 3291 3132 4.00      
4 A1 1537 1462 9.84      
5 A1 1461 1390 3.95      
6 A1 1199 1141 3.41      
7 A1 1114 1060 8.30      
8 A1 1055 1003 26.70      
9 A1 903 859 0.18      
10 A2 888 845 0.00      
11 A2 692 659 0.00      
12 A2 634 604 0.00      
13 B1 838 797 2.83      
14 B1 742 706 128.14      
15 B1 649 617 0.78      
16 B1 486 463 81.85      
17 B2 3307 3147 4.72      
18 B2 3280 3121 2.60      
19 B2 1612 1534 4.50      
20 B2 1500 1428 7.00      
21 B2 1324 1260 2.55      
22 B2 1180 1123 3.70      
23 B2 1086 1034 24.67      
24 B2 877 835 1.36      

Unscaled Zero Point Vibrational Energy (zpe) 18354.5 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 17464.3 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 mPW1PW91/6-31G**
ABC
0.30727 0.30248 0.15243

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G**

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 2.121
C3 0.000 1.120 0.332
C4 0.000 -1.120 0.332
C5 0.000 0.710 -0.980
C6 0.000 -0.710 -0.980
H7 0.000 2.107 0.766
H8 0.000 -2.107 0.766
H9 0.000 1.358 -1.844
H10 0.000 -1.358 -1.844

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00391.36771.36772.21402.21402.13622.13623.25713.2571
H21.00392.11072.11073.18123.18122.50522.50524.19064.1906
C31.36772.11072.23961.37432.25151.07863.25612.18823.2973
C41.36772.11072.23962.25151.37433.25611.07863.29732.1882
C52.21403.18121.37432.25151.42012.23623.31441.07962.2412
C62.21403.18122.25151.37431.42013.31442.23622.24121.0796
H72.13622.50521.07863.25612.23623.31444.21432.71484.3379
H82.13622.50523.25611.07863.31442.23624.21434.33792.7148
H93.25714.19062.18823.29731.07962.24122.71484.33792.7163
H103.25714.19063.29732.18822.24121.07964.33792.71482.7163

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.692 N1 C3 H7 121.218
N1 C4 C6 107.692 N1 C4 H8 121.218
H2 N1 C3 125.040 H2 N1 C4 125.040
C3 N1 C4 109.920 C3 C5 C6 107.348
C3 C5 H9 125.758 C4 C6 C5 107.348
C4 C6 H10 125.758 C5 C3 H7 131.090
C5 C6 H10 126.895 C6 C4 H8 131.090
C6 C5 H9 126.895
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.525      
2 H 0.288      
3 C 0.047      
4 C 0.047      
5 C -0.178      
6 C -0.178      
7 H 0.133      
8 H 0.133      
9 H 0.116      
10 H 0.116      


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 1.931 1.931
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.932 0.000 0.000
y 0.000 -26.023 0.000
z 0.000 0.000 -22.876
Traceless
 xyz
x -8.483 0.000 0.000
y 0.000 1.881 0.000
z 0.000 0.000 6.602
Polar
3z2-r213.204
x2-y2-6.909
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.727 0.000 0.000
y 0.000 7.780 0.000
z 0.000 0.000 7.654


<r2> (average value of r2) Å2
<r2> 84.753
(<r2>)1/2 9.206