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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-210.088831
Energy at 298.15K-210.094863
HF Energy-210.088831
Nuclear repulsion energy161.031341
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 B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3694 3534 55.90      
2 A1 3296 3154 0.06      
3 A1 3274 3132 6.21      
4 A1 1528 1462 8.97      
5 A1 1452 1389 4.22      
6 A1 1192 1140 3.10      
7 A1 1110 1062 7.46      
8 A1 1050 1005 26.98      
9 A1 898 860 0.16      
10 A2 873 835 0.00      
11 A2 674 645 0.00      
12 A2 630 603 0.00      
13 B1 820 784 5.29      
14 B1 731 700 130.31      
15 B1 645 617 0.77      
16 B1 468 448 81.96      
17 B2 3291 3149 7.17      
18 B2 3262 3121 3.03      
19 B2 1604 1534 4.82      
20 B2 1491 1427 7.04      
21 B2 1320 1263 2.44      
22 B2 1178 1127 3.38      
23 B2 1082 1035 24.61      
24 B2 874 836 1.21      

Unscaled Zero Point Vibrational Energy (zpe) 18218.3 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 17429.4 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 B3PW91/6-31G*
ABC
0.30618 0.30123 0.15184

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.119
H2 0.000 0.000 2.126
C3 0.000 1.122 0.332
C4 0.000 -1.122 0.332
C5 0.000 0.711 -0.982
C6 0.000 -0.711 -0.982
H7 0.000 2.111 0.769
H8 0.000 -2.111 0.769
H9 0.000 1.360 -1.848
H10 0.000 -1.360 -1.848

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00721.37061.37062.21812.21812.13952.13953.26383.2638
H21.00722.11622.11623.18863.18862.50942.50944.20044.2004
C31.37062.11622.24441.37702.25551.08083.26232.19303.3033
C41.37062.11622.24442.25551.37703.26231.08083.30332.1930
C52.21813.18861.37702.25551.42182.24193.32081.08202.2443
C62.21813.18862.25551.37701.42183.32082.24192.24431.0820
H72.13952.50941.08083.26232.24193.32084.22142.72284.3465
H82.13952.50943.26231.08083.32082.24194.22144.34652.7228
H93.26384.20042.19303.30331.08202.24432.72284.34652.7191
H103.26384.20043.30332.19302.24431.08204.34652.72282.7191

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.664 N1 C3 H7 121.108
N1 C4 C6 107.664 N1 C4 H8 121.108
H2 N1 C3 125.042 H2 N1 C4 125.042
C3 N1 C4 109.915 C3 C5 C6 107.379
C3 C5 H9 125.786 C4 C6 C5 107.379
C4 C6 H10 125.786 C5 C3 H7 131.229
C5 C6 H10 126.835 C6 C4 H8 131.229
C6 C5 H9 126.835
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.578      
2 H 0.351      
3 C 0.005      
4 C 0.005      
5 C -0.215      
6 C -0.215      
7 H 0.169      
8 H 0.169      
9 H 0.154      
10 H 0.154      


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 1.938 1.938
CHELPG        
AIM        
ESP 0.000 0.000 1.932 1.932


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.976 0.000 0.000
y 0.000 -26.030 0.000
z 0.000 0.000 -22.816
Traceless
 xyz
x -8.553 0.000 0.000
y 0.000 1.866 0.000
z 0.000 0.000 6.686
Polar
3z2-r213.373
x2-y2-6.946
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.679 0.000 0.000
y 0.000 7.781 0.000
z 0.000 0.000 7.635


<r2> (average value of r2) Å2
<r2> 85.015
(<r2>)1/2 9.220