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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-209.184967
Energy at 298.15K-209.189282
HF Energy-209.184967
Nuclear repulsion energy148.775529
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 3234 3190 1.98      
2 A1 3198 3154 4.90      
3 A1 1519 1498 0.37      
4 A1 1371 1352 7.91      
5 A1 1166 1150 0.65      
6 A1 1061 1046 39.03      
7 A1 1042 1028 1.83      
8 A1 863 851 10.35      
9 A2 886 874 0.00      
10 A2 761 750 0.00      
11 A2 434 428 0.00      
12 B1 815 804 0.64      
13 B1 701 692 73.38      
14 B1 529 522 22.71      
15 B2 3210 3166 10.78      
16 B2 3192 3148 10.54      
17 B2 1325 1307 43.92      
18 B2 1273 1255 0.38      
19 B2 1018 1004 14.44      
20 B2 914 901 0.07      
21 B2 549 541 0.29      

Unscaled Zero Point Vibrational Energy (zpe) 14529.9 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 14329.4 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
0.32235 0.28684 0.15178

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 1.269
C2 0.000 1.085 0.425
C3 0.000 -1.085 0.425
C4 0.000 0.689 -0.994
C5 0.000 -0.689 -0.994
H6 0.000 2.100 0.823
H7 0.000 -2.100 0.823
H8 0.000 1.363 -1.848
H9 0.000 -1.363 -1.848

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.37451.37452.36522.36522.14642.14643.40173.4017
C21.37452.17041.47322.27201.08993.20972.29003.3409
C31.37452.17042.27201.47323.20971.08993.34092.2900
C42.36521.47322.27201.37852.30043.32871.08802.2231
C52.36522.27201.47321.37853.32872.30042.22311.0880
H62.14641.08993.20972.30043.32874.19942.77094.3735
H72.14643.20971.08993.32872.30044.19944.37352.7709
H83.40172.29003.34091.08802.22312.77094.37352.7266
H93.40173.34092.29002.22311.08804.37352.77092.7266

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 112.269 N1 C2 H6 120.707
N1 C3 C5 112.269 N1 C3 H7 120.707
C2 N1 C3 104.279 C2 C4 C5 105.591
C2 C4 H8 126.125 C3 C5 C4 105.591
C3 C5 H9 126.125 C4 C2 H6 127.023
C4 C5 H9 128.284 C5 C3 H7 127.023
C5 C4 H8 128.284
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 -0.365      
2 C 0.004      
3 C 0.004      
4 C -0.148      
5 C -0.148      
6 H 0.169      
7 H 0.169      
8 H 0.157      
9 H 0.157      


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 -2.246 2.246
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.965 0.000 0.000
y 0.000 -22.951 0.000
z 0.000 0.000 -31.954
Traceless
 xyz
x -3.513 0.000 0.000
y 0.000 8.508 0.000
z 0.000 0.000 -4.996
Polar
3z2-r2-9.992
x2-y2-8.014
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.469 0.000 0.000
y 0.000 8.258 0.000
z 0.000 0.000 6.979


<r2> (average value of r2) Å2
<r2> 83.719
(<r2>)1/2 9.150