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All results from a given calculation for C4H4N (pyrrolide radical)

using model chemistry: B3PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at B3PW91/6-31+G**
 hartrees
Energy at 0K-209.444988
Energy at 298.15K-209.449522
HF Energy-209.444988
Nuclear repulsion energy150.879462
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 B3PW91/6-31+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 3278 3147 1.32      
2 A1 3232 3103 1.10      
3 A1 1577 1514 1.89      
4 A1 1459 1401 26.96      
5 A1 1211 1163 3.88      
6 A1 1099 1055 42.14      
7 A1 1055 1013 0.00      
8 A1 877 842 8.76      
9 A2 907 871 0.00      
10 A2 824 791 0.00      
11 A2 488 468 0.00      
12 B1 840 806 0.35      
13 B1 711 683 78.16      
14 B1 538 517 21.82      
15 B2 3258 3128 5.47      
16 B2 3228 3099 16.30      
17 B2 1365 1310 52.29      
18 B2 1298 1246 0.00      
19 B2 1098 1054 5.35      
20 B2 946 909 0.00      
21 B2 690 662 5.99      

Unscaled Zero Point Vibrational Energy (zpe) 14988.1 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 14390.0 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 B3PW91/6-31+G**
ABC
0.33309 0.29383 0.15611

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.248
C2 0.000 1.062 0.424
C3 0.000 -1.062 0.424
C4 0.000 0.682 -0.983
C5 0.000 -0.682 -0.983
H6 0.000 2.073 0.820
H7 0.000 -2.073 0.820
H8 0.000 1.356 -1.830
H9 0.000 -1.356 -1.830

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.34441.34442.33302.33302.11722.11723.36323.3632
C21.34442.12501.45812.24111.08563.16082.27323.3058
C31.34442.12502.24111.45813.16081.08563.30582.2732
C42.33301.45812.24111.36302.27783.29251.08232.2061
C52.33302.24111.45811.36303.29252.27782.20611.0823
H62.11721.08563.16082.27783.29254.14692.74534.3335
H72.11723.16081.08563.29252.27784.14694.33352.7453
H83.36322.27323.30581.08232.20612.74534.33352.7112
H93.36323.30582.27322.20611.08234.33352.74532.7112

picture of pyrrolide radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C4 112.641 N1 C2 H6 120.843
N1 C3 C5 112.641 N1 C3 H7 120.843
C2 N1 C3 104.426 C2 C4 C5 105.146
C2 C4 H8 126.329 C3 C5 C4 105.146
C3 C5 H9 126.329 C4 C2 H6 126.516
C4 C5 H9 128.525 C5 C3 H7 126.516
C5 C4 H8 128.525
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.187      
2 C -0.163      
3 C -0.163      
4 C -0.068      
5 C -0.068      
6 H 0.161      
7 H 0.161      
8 H 0.164      
9 H 0.164      


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 -2.200 2.200
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.521 0.000 0.000
y 0.000 -23.053 0.000
z 0.000 0.000 -32.155
Traceless
 xyz
x -3.917 0.000 0.000
y 0.000 8.785 0.000
z 0.000 0.000 -4.868
Polar
3z2-r2-9.736
x2-y2-8.468
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.528 0.000 0.000
y 0.000 8.864 0.000
z 0.000 0.000 7.887


<r2> (average value of r2) Å2
<r2> 82.154
(<r2>)1/2 9.064