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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-210.092648
Energy at 298.15K-210.098737
HF Energy-210.092648
Nuclear repulsion energy161.298511
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 B1B95/6-31+G**
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 3719 3558 71.87      
2 A1 3302 3159 0.01      
3 A1 3281 3138 3.54      
4 A1 1519 1453 13.60      
5 A1 1451 1388 2.43      
6 A1 1191 1139 3.19      
7 A1 1104 1056 8.12      
8 A1 1046 1000 32.27      
9 A1 889 850 0.36      
10 A2 885 846 0.00      
11 A2 695 664 0.00      
12 A2 624 597 0.00      
13 B1 838 801 1.04      
14 B1 733 701 180.41      
15 B1 639 611 0.54      
16 B1 506 484 78.35      
17 B2 3297 3154 3.16      
18 B2 3269 3127 2.91      
19 B2 1595 1526 1.67      
20 B2 1483 1419 7.54      
21 B2 1310 1253 2.32      
22 B2 1171 1120 4.10      
23 B2 1076 1029 29.01      
24 B2 865 827 1.83      

Unscaled Zero Point Vibrational Energy (zpe) 18241.5 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 17449.8 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 B1B95/6-31+G**
ABC
0.30727 0.30214 0.15234

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

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 2.123
C3 0.000 1.120 0.332
C4 0.000 -1.120 0.332
C5 0.000 0.709 -0.981
C6 0.000 -0.709 -0.981
H7 0.000 2.107 0.767
H8 0.000 -2.107 0.767
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
N11.00521.36831.36832.21502.21502.13642.13643.25813.2581
H21.00522.11252.11253.18353.18352.50602.50604.19284.1928
C31.36832.11252.24041.37522.25171.07873.25672.18893.2976
C41.36832.11252.24042.25171.37523.25671.07873.29762.1889
C52.21503.18351.37522.25171.41902.23763.31471.07972.2402
C62.21503.18352.25171.37521.41903.31472.23762.24021.0797
H72.13642.50601.07873.25672.23763.31474.21472.71634.3385
H82.13642.50603.25671.07873.31472.23764.21474.33852.7163
H93.25814.19282.18893.29761.07972.24022.71634.33852.7153
H103.25814.19283.29762.18892.24021.07974.33852.71632.7153

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.673 N1 C3 H7 121.177
N1 C4 C6 107.673 N1 C4 H8 121.177
H2 N1 C3 125.049 H2 N1 C4 125.049
C3 N1 C4 109.901 C3 C5 C6 107.377
C3 C5 H9 125.731 C4 C6 C5 107.377
C4 C6 H10 125.731 C5 C3 H7 131.151
C5 C6 H10 126.892 C6 C4 H8 131.151
C6 C5 H9 126.892
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.271      
2 H 0.308      
3 C -0.237      
4 C -0.237      
5 C -0.073      
6 C -0.073      
7 H 0.150      
8 H 0.150      
9 H 0.141      
10 H 0.141      


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 1.941 1.941
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.331 0.000 0.000
y 0.000 -26.914 0.000
z 0.000 0.000 -23.585
Traceless
 xyz
x -9.081 0.000 0.000
y 0.000 2.044 0.000
z 0.000 0.000 7.037
Polar
3z2-r214.075
x2-y2-7.417
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.185 0.000 0.000
y 0.000 8.825 0.000
z 0.000 0.000 8.515


<r2> (average value of r2) Å2
<r2> 85.415
(<r2>)1/2 9.242