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

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 2A2
Energy calculated at B3LYP/CEP-31G
 hartrees
Energy at 0K-34.766462
Energy at 298.15K-34.770938
HF Energy-34.766462
Nuclear repulsion energy74.966553
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
4/u)
Dep P Dep U
1 A1 3277 3174 2.80      
2 A1 3239 3137 3.65      
3 A1 1538 1489 0.03      
4 A1 1396 1352 9.79      
5 A1 1168 1131 1.27      
6 A1 1069 1035 50.45      
7 A1 1041 1009 1.10      
8 A1 867 839 7.64      
9 A2 938 908 0.00      
10 A2 825 799 0.00      
11 A2 493 477 0.00      
12 B1 851 824 2.53      
13 B1 742 718 133.61      
14 B1 537 520 23.12      
15 B2 3248 3145 15.66      
16 B2 3226 3124 15.79      
17 B2 1335 1293 58.17      
18 B2 1276 1236 1.82      
19 B2 1026 994 5.85      
20 B2 923 894 0.19      
21 B2 616 596 9.77      

Unscaled Zero Point Vibrational Energy (zpe) 14815.2 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 14347.0 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 B3LYP/CEP-31G
ABC
0.31771 0.28124 0.14918

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 1.276
C2 0.000 1.093 0.433
C3 0.000 -1.093 0.433
C4 0.000 0.696 -1.007
C5 0.000 -0.696 -1.007
H6 0.000 2.106 0.837
H7 0.000 -2.106 0.837
H8 0.000 1.373 -1.858
H9 0.000 -1.373 -1.858

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.38021.38022.38652.38652.15142.15143.42113.4211
C21.38022.18651.49402.29711.09073.22502.30813.3662
C31.38022.18652.29711.49403.22501.09073.36622.3081
C42.38651.49402.29711.39242.32183.35511.08712.2372
C52.38652.29711.49401.39243.35512.32182.23721.0871
H62.15141.09073.22502.32183.35514.21272.79334.4011
H72.15143.22501.09073.35512.32184.21274.40112.7933
H83.42112.30813.36621.08712.23722.79334.40112.7458
H93.42113.36622.30812.23721.08714.40112.79332.7458

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 112.205 N1 C2 H6 120.630
N1 C3 C5 112.205 N1 C3 H7 120.630
C2 N1 C3 104.766 C2 C4 C5 105.412
C2 C4 H8 126.089 C3 C5 C4 105.412
C3 C5 H9 126.089 C4 C2 H6 127.165
C4 C5 H9 128.498 C5 C3 H7 127.165
C5 C4 H8 128.498
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.144      
2 C -0.469      
3 C -0.469      
4 C -0.189      
5 C -0.189      
6 H 0.270      
7 H 0.270      
8 H 0.315      
9 H 0.315      


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 -2.529 2.529
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.647 0.000 0.000
y 0.000 -22.397 0.000
z 0.000 0.000 -32.692
Traceless
 xyz
x -4.102 0.000 0.000
y 0.000 9.773 0.000
z 0.000 0.000 -5.670
Polar
3z2-r2-11.341
x2-y2-9.250
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.068 0.000 0.000
y 0.000 8.340 0.000
z 0.000 0.000 7.007


<r2> (average value of r2) Å2
<r2> 70.198
(<r2>)1/2 8.378