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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-35.480763
Energy at 298.15K-35.486761
HF Energy-35.480763
Nuclear repulsion energy82.430472
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 B3LYP/CEP-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 3662 3536 53.82      
2 A1 3254 3142 0.29      
3 A1 3231 3120 4.53      
4 A1 1502 1451 11.18      
5 A1 1427 1378 1.18      
6 A1 1164 1124 2.35      
7 A1 1084 1047 9.27      
8 A1 1026 991 35.49      
9 A1 871 841 0.09      
10 A2 894 864 0.00      
11 A2 695 671 0.00      
12 A2 608 587 0.00      
13 B1 840 812 6.94      
14 B1 743 717 233.89      
15 B1 624 603 2.72      
16 B1 472 455 71.50      
17 B2 3246 3134 10.22      
18 B2 3217 3107 0.91      
19 B2 1570 1516 2.37      
20 B2 1442 1392 6.81      
21 B2 1283 1239 1.53      
22 B2 1148 1109 1.78      
23 B2 1056 1020 31.51      
24 B2 849 820 1.56      

Unscaled Zero Point Vibrational Energy (zpe) 17953.1 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 17337.3 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 B3LYP/CEP-31G*
ABC
0.29806 0.29168 0.14742

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.121
H2 0.000 0.000 2.137
C3 0.000 1.137 0.326
C4 0.000 -1.137 0.326
C5 0.000 0.722 -1.015
C6 0.000 -0.722 -1.015
H7 0.000 2.133 0.768
H8 0.000 -2.133 0.768
H9 0.000 1.380 -1.884
H10 0.000 -1.380 -1.884

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.01611.38721.38722.25442.25442.16242.16243.30613.3061
H21.01612.13812.13813.23343.23342.53462.53464.25074.2507
C31.38722.13812.27421.40382.29241.09013.30032.22323.3493
C41.38722.13812.27422.29241.40383.30031.09013.34932.2232
C52.25443.23341.40382.29241.44432.27423.36671.08962.2743
C62.25443.23342.29241.40381.44433.36672.27422.27431.0896
H72.16242.53461.09013.30032.27423.36674.26692.75724.4018
H82.16242.53463.30031.09013.36672.27424.26694.40182.7572
H93.30614.25072.22323.34931.08962.27432.75724.40182.7593
H103.30614.25073.34932.22322.27431.08964.40182.75722.7593

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.752 N1 C3 H7 121.120
N1 C4 C6 107.752 N1 C4 H8 121.120
H2 N1 C3 124.945 H2 N1 C4 124.945
C3 N1 C4 110.111 C3 C5 C6 107.193
C3 C5 H9 125.688 C4 C6 C5 107.193
C4 C6 H10 125.688 C5 C3 H7 131.128
C5 C6 H10 127.119 C6 C4 H8 131.128
C6 C5 H9 127.119
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.072      
2 H 0.321      
3 C -0.593      
4 C -0.593      
5 C -0.207      
6 C -0.207      
7 H 0.282      
8 H 0.282      
9 H 0.322      
10 H 0.322      


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 1.928 1.928
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.993 0.000 0.000
y 0.000 -25.951 0.000
z 0.000 0.000 -22.764
Traceless
 xyz
x -9.636 0.000 0.000
y 0.000 2.427 0.000
z 0.000 0.000 7.209
Polar
3z2-r214.417
x2-y2-8.042
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.584 0.000 0.000
y 0.000 8.110 0.000
z 0.000 0.000 8.103


<r2> (average value of r2) Å2
<r2> 72.861
(<r2>)1/2 8.536