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

using model chemistry: ROHF/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 ROHF/6-31G*
 hartrees
Energy at 0K-208.198342
Energy at 298.15K 
HF Energy-208.198342
Nuclear repulsion energy151.878398
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 ROHF/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 3446 3068 3.08      
2 A1 3412 3038 6.77      
3 A1 1723 1534 0.22      
4 A1 1588 1414 22.98      
5 A1 1275 1135 0.29      
6 A1 1187 1057 28.78      
7 A1 1096 976 1.40      
8 A1 944 841 13.15      
9 A2 1046 932 0.00      
10 A2 872 776 0.00      
11 A2 558 497 0.00      
12 B1 884 787 12.78      
13 B1 786 700 59.99      
14 B1 592 527 20.22      
15 B2 3423 3048 25.25      
16 B2 3406 3033 23.81      
17 B2 1465 1305 68.88      
18 B2 1405 1251 21.57      
19 B2 1117 995 0.68      
20 B2 968 862 0.72      
21 B2 977i 870i 802.90      

Unscaled Zero Point Vibrational Energy (zpe) 15108.3 cm-1
Scaled (by 0.8904) Zero Point Vibrational Energy (zpe) 13452.5 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 ROHF/6-31G*
ABC
0.33813 0.29662 0.15801

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.236
C2 0.000 1.060 0.427
C3 0.000 -1.060 0.427
C4 0.000 0.669 -0.981
C5 0.000 -0.669 -0.981
H6 0.000 2.060 0.816
H7 0.000 -2.060 0.816
H8 0.000 1.338 -1.819
H9 0.000 -1.338 -1.819

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.33331.33332.31632.31632.10202.10203.33513.3351
C21.33332.11901.46112.22981.07303.14322.26293.2848
C31.33332.11902.22981.46113.14321.07303.28482.2629
C42.31631.46112.22981.33902.27193.26761.07152.1749
C52.31632.22981.46111.33903.26762.27192.17491.0715
H62.10201.07303.14322.27193.26764.11902.73184.2992
H72.10203.14321.07303.26762.27194.11904.29922.7318
H83.33512.26293.28481.07152.17492.73184.29922.6754
H93.33513.28482.26292.17491.07154.29922.73182.6754

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 111.896 N1 C2 H6 121.364
N1 C3 C5 111.896 N1 C3 H7 121.364
C2 N1 C3 105.244 C2 C4 C5 105.482
C2 C4 H8 125.938 C3 C5 C4 105.482
C3 C5 H9 125.938 C4 C2 H6 126.740
C4 C5 H9 128.580 C5 C3 H7 126.740
C5 C4 H8 128.580
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.481      
2 C 0.053      
3 C 0.053      
4 C -0.240      
5 C -0.240      
6 H 0.212      
7 H 0.212      
8 H 0.216      
9 H 0.216      


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 -2.224 2.224
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.139 0.000 0.000
y 0.000 -22.906 0.000
z 0.000 0.000 -31.823
Traceless
 xyz
x -3.775 0.000 0.000
y 0.000 8.576 0.000
z 0.000 0.000 -4.801
Polar
3z2-r2-9.602
x2-y2-8.233
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 81.175
(<r2>)1/2 9.010