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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: HF/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 HF/6-31G*
 hartrees
Energy at 0K-208.807854
Energy at 298.15K-208.814190
HF Energy-208.807854
Nuclear repulsion energy162.289452
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 HF/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 3926 3528 83.69      
2 A1 3455 3104 0.12      
3 A1 3430 3082 10.20      
4 A1 1648 1481 15.63      
5 A1 1548 1391 7.24      
6 A1 1264 1136 2.67      
7 A1 1161 1044 25.90      
8 A1 1110 998 25.89      
9 A1 968 869 0.75      
10 A2 1000 898 0.00      
11 A2 806 724 0.00      
12 A2 679 611 0.00      
13 B1 966 868 0.43      
14 B1 830 746 137.56      
15 B1 684 615 0.12      
16 B1 484 435 120.85      
17 B2 3449 3099 14.32      
18 B2 3417 3070 4.85      
19 B2 1744 1567 9.43      
20 B2 1595 1433 10.18      
21 B2 1437 1291 1.16      
22 B2 1253 1126 1.49      
23 B2 1166 1048 18.55      
24 B2 946 850 2.59      

Unscaled Zero Point Vibrational Energy (zpe) 19483.8 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 17506.2 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 HF/6-31G*
ABC
0.30951 0.30703 0.15413

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.113
H2 0.000 0.000 2.105
C3 0.000 1.113 0.326
C4 0.000 -1.113 0.326
C5 0.000 0.713 -0.972
C6 0.000 -0.713 -0.972
H7 0.000 2.093 0.755
H8 0.000 -2.093 0.755
H9 0.000 1.356 -1.828
H10 0.000 -1.356 -1.828

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N10.99241.36281.36282.20282.20282.12352.12353.23843.2384
H20.99242.09842.09843.15823.15822.49082.49084.16044.1604
C31.36282.09842.22581.35772.24031.07003.23462.16783.2768
C41.36282.09842.22582.24031.35773.23461.07003.27682.1678
C52.20283.15821.35772.24031.42662.21013.29501.07112.2399
C62.20283.15822.24031.35771.42663.29502.21012.23991.0711
H72.12352.49081.07003.23462.21013.29504.18622.68604.3094
H82.12352.49083.23461.07003.29502.21014.18624.30942.6860
H93.23844.16042.16783.27681.07112.23992.68604.30942.7128
H103.23844.16043.27682.16782.23991.07114.30942.68602.7128

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 108.136 N1 C3 H7 121.116
N1 C4 C6 108.136 N1 C4 H8 121.116
H2 N1 C3 125.251 H2 N1 C4 125.251
C3 N1 C4 109.497 C3 C5 C6 107.116
C3 C5 H9 125.983 C4 C6 C5 107.116
C4 C6 H10 125.983 C5 C3 H7 130.748
C5 C6 H10 126.901 C6 C4 H8 130.748
C6 C5 H9 126.901
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.703      
2 H 0.391      
3 C 0.026      
4 C 0.026      
5 C -0.265      
6 C -0.265      
7 H 0.203      
8 H 0.203      
9 H 0.192      
10 H 0.192      


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 1.896 1.896
CHELPG 0.000 0.000 1.877 1.877
AIM 0.000 0.000 1.640 1.640
ESP 0.000 0.000 1.891 1.891


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.678 0.000 0.000
y 0.000 -26.138 -0.013
z 0.000 -0.013 -23.370
Traceless
 xyz
x -8.924 0.000 0.000
y 0.000 2.386 -0.013
z 0.000 -0.013 6.538
Polar
3z2-r213.075
x2-y2-7.540
xy0.000
xz0.000
yz-0.013


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.624 0.000 0.000
y 0.000 7.215 -0.004
z 0.000 -0.004 7.432


<r2> (average value of r2) Å2
<r2> 84.255
(<r2>)1/2 9.179