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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-210.023282
Energy at 298.15K-210.029536
HF Energy-210.023282
Nuclear repulsion energy160.681592
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 B1B95/6-31G
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 3730 3558 54.74      
2 A1 3334 3180 0.04      
3 A1 3306 3153 6.13      
4 A1 1524 1454 9.33      
5 A1 1460 1392 5.28      
6 A1 1192 1137 2.50      
7 A1 1127 1074 5.99      
8 A1 1059 1010 33.03      
9 A1 917 875 0.42      
10 A2 926 883 0.00      
11 A2 730 696 0.00      
12 A2 641 611 0.00      
13 B1 874 834 4.85      
14 B1 756 721 129.23      
15 B1 653 623 36.23      
16 B1 629 600 115.20      
17 B2 3326 3172 5.92      
18 B2 3292 3140 3.96      
19 B2 1613 1539 8.02      
20 B2 1487 1418 10.52      
21 B2 1347 1284 1.10      
22 B2 1201 1146 3.01      
23 B2 1096 1045 25.82      
24 B2 895 854 1.15      

Unscaled Zero Point Vibrational Energy (zpe) 18557.7 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 17698.4 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 B1B95/6-31G
ABC
0.30401 0.30040 0.15110

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

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 2.128
C3 0.000 1.128 0.331
C4 0.000 -1.128 0.331
C5 0.000 0.712 -0.983
C6 0.000 -0.712 -0.983
H7 0.000 2.116 0.759
H8 0.000 -2.116 0.759
H9 0.000 1.354 -1.849
H10 0.000 -1.354 -1.849

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00381.37901.37902.22402.22402.14762.14763.26673.2667
H21.00382.12162.12163.19123.19122.52072.52074.20084.2008
C31.37902.12162.25651.37822.26141.07653.27252.19153.3036
C41.37902.12162.25652.26141.37823.27251.07653.30362.1915
C52.22403.19121.37822.26141.42452.23673.32151.07792.2405
C62.22403.19122.26141.37821.42453.32152.23672.24051.0779
H72.14762.52071.07653.27252.23673.32154.23252.71624.3406
H82.14762.52073.27251.07653.32152.23674.23254.34062.7162
H93.26674.20082.19153.30361.07792.24052.71624.34062.7083
H103.26674.20083.30362.19152.24051.07794.34062.71622.7083

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.533 N1 C3 H7 121.511
N1 C4 C6 107.533 N1 C4 H8 121.511
H2 N1 C3 125.101 H2 N1 C4 125.101
C3 N1 C4 109.798 C3 C5 C6 107.568
C3 C5 H9 125.884 C4 C6 C5 107.568
C4 C6 H10 125.884 C5 C3 H7 130.956
C5 C6 H10 126.548 C6 C4 H8 130.956
C6 C5 H9 126.548
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.706      
2 H 0.337      
3 C 0.077      
4 C 0.077      
5 C -0.210      
6 C -0.210      
7 H 0.169      
8 H 0.169      
9 H 0.148      
10 H 0.148      


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 1.926 1.926
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.274 0.000 0.000
y 0.000 -26.156 0.000
z 0.000 0.000 -23.084
Traceless
 xyz
x -8.654 0.000 0.000
y 0.000 2.023 0.000
z 0.000 0.000 6.631
Polar
3z2-r213.262
x2-y2-7.118
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.385 0.000 0.000
y 0.000 7.614 0.000
z 0.000 0.000 7.502


<r2> (average value of r2) Å2
<r2> 85.432
(<r2>)1/2 9.243