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

using model chemistry: PBEPBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-209.246154
Energy at 298.15K-209.250524
HF Energy-209.246154
Nuclear repulsion energy149.915734
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 PBEPBE/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 3202 3157 3.16      
2 A1 3147 3102 3.84      
3 A1 1536 1514 0.35      
4 A1 1415 1395 22.09      
5 A1 1179 1163 2.45      
6 A1 1073 1058 36.49      
7 A1 1032 1017 0.21      
8 A1 850 837 10.91      
9 A2 858 846 0.00      
10 A2 776 765 0.00      
11 A2 455 448 0.00      
12 B1 801 790 0.64      
13 B1 685 676 49.04      
14 B1 521 514 20.79      
15 B2 3183 3137 7.41      
16 B2 3144 3099 24.84      
17 B2 1328 1309 42.88      
18 B2 1264 1246 0.24      
19 B2 1067 1052 8.96      
20 B2 919 905 0.04      
21 B2 660 651 1.54      

Unscaled Zero Point Vibrational Energy (zpe) 14546.6 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 14338.6 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 PBEPBE/6-31G*
ABC
0.32999 0.28933 0.15416

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.261
C2 0.000 1.066 0.424
C3 0.000 -1.066 0.424
C4 0.000 0.686 -0.990
C5 0.000 -0.686 -0.990
H6 0.000 2.086 0.822
H7 0.000 -2.086 0.822
H8 0.000 1.365 -1.843
H9 0.000 -1.365 -1.843

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.35511.35512.35342.35342.13172.13173.39123.3912
C21.35512.13181.46452.25151.09503.17692.28713.3244
C31.35512.13182.25151.46453.17691.09503.32442.2871
C42.35341.46452.25151.37182.29013.31171.09052.2214
C52.35342.25151.46451.37183.31172.29012.22141.0905
H62.13171.09503.17692.29013.31174.17212.76104.3606
H72.13173.17691.09503.31172.29014.17214.36062.7610
H83.39122.28713.32441.09052.22142.76104.36062.7304
H93.39123.32442.28712.22141.09054.36062.76102.7304

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 113.096 N1 C2 H6 120.563
N1 C3 C5 113.096 N1 C3 H7 120.563
C2 N1 C3 103.731 C2 C4 C5 105.038
C2 C4 H8 126.430 C3 C5 C4 105.038
C3 C5 H9 126.430 C4 C2 H6 126.340
C4 C5 H9 128.532 C5 C3 H7 126.340
C5 C4 H8 128.532
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.384      
2 C 0.037      
3 C 0.037      
4 C -0.157      
5 C -0.157      
6 H 0.160      
7 H 0.160      
8 H 0.152      
9 H 0.152      


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 -1.983 1.983
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.601 0.000 0.000
y 0.000 -23.121 0.000
z 0.000 0.000 -31.040
Traceless
 xyz
x -3.520 0.000 0.000
y 0.000 7.700 0.000
z 0.000 0.000 -4.179
Polar
3z2-r2-8.359
x2-y2-7.480
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.686 0.000 0.000
y 0.000 8.285 0.000
z 0.000 0.000 7.055


<r2> (average value of r2) Å2
<r2> 82.559
(<r2>)1/2 9.086