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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-34.831338
Energy at 298.15K-34.835832
HF Energy-34.831338
Nuclear repulsion energy75.576963
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
(Å4/u)
Dep P Dep U
1 A1 3248 3136 2.19      
2 A1 3202 3092 2.74      
3 A1 1557 1504 1.44      
4 A1 1444 1394 26.10      
5 A1 1191 1150 4.15      
6 A1 1083 1045 44.21      
7 A1 1033 998 0.23      
8 A1 860 831 9.06      
9 A2 915 883 0.00      
10 A2 829 800 0.00      
11 A2 489 472 0.00      
12 B1 842 813 1.53      
13 B1 728 703 108.14      
14 B1 536 517 23.44      
15 B2 3224 3113 8.74      
16 B2 3192 3082 26.33      
17 B2 1343 1297 55.86      
18 B2 1273 1229 0.00      
19 B2 1072 1035 2.98      
20 B2 929 897 0.10      
21 B2 684 661 9.47      

Unscaled Zero Point Vibrational Energy (zpe) 14835.0 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 14326.1 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
0.32516 0.28497 0.15187

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 1.264
C2 0.000 1.074 0.432
C3 0.000 -1.074 0.432
C4 0.000 0.693 -1.000
C5 0.000 -0.693 -1.000
H6 0.000 2.092 0.835
H7 0.000 -2.092 0.835
H8 0.000 1.374 -1.852
H9 0.000 -1.374 -1.852

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.35881.35882.36862.36862.13582.13583.40573.4057
C21.35882.14841.48272.27511.09483.19192.30393.3481
C31.35882.14842.27511.48273.19191.09483.34812.3039
C42.36861.48272.27511.38592.30813.33561.09012.2351
C52.36862.27511.48271.38593.33562.30812.23511.0901
H62.13581.09483.19192.30813.33564.18442.78154.3854
H72.13583.19191.09483.33562.30814.18444.38542.7815
H83.40572.30393.34811.09012.23512.78154.38542.7472
H93.40573.34812.30392.23511.09014.38542.78152.7472

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 112.861 N1 C2 H6 120.651
N1 C3 C5 112.861 N1 C3 H7 120.651
C2 N1 C3 104.475 C2 C4 C5 104.901
C2 C4 H8 126.461 C3 C5 C4 104.901
C3 C5 H9 126.461 C4 C2 H6 126.488
C4 C5 H9 128.637 C5 C3 H7 126.488
C5 C4 H8 128.637
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 0.179      
2 C -0.497      
3 C -0.497      
4 C -0.197      
5 C -0.197      
6 H 0.276      
7 H 0.276      
8 H 0.328      
9 H 0.328      


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 -2.156 2.156
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.286 0.000 0.000
y 0.000 -22.388 0.000
z 0.000 0.000 -31.422
Traceless
 xyz
x -4.381 0.000 0.000
y 0.000 8.966 0.000
z 0.000 0.000 -4.585
Polar
3z2-r2-9.170
x2-y2-8.898
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.313 0.000 0.000
y 0.000 8.369 0.000
z 0.000 0.000 7.164


<r2> (average value of r2) Å2
<r2> 69.070
(<r2>)1/2 8.311