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

using model chemistry: HF/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at HF/aug-cc-pVTZ
 hartrees
Energy at 0K-208.271118
Energy at 298.15K 
HF Energy-208.271118
Nuclear repulsion energy152.220285
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 HF/aug-cc-pVTZ
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 3398 3093 1.94      
2 A1 3361 3060 2.55      
3 A1 1693 1541 0.26      
4 A1 1567 1426 21.72      
5 A1 1266 1153 0.57      
6 A1 1174 1069 30.25      
7 A1 1085 987 2.33      
8 A1 941 856 13.09      
9 A2 1048 954 0.00      
10 A2 881 802 0.00      
11 A2 557 507 0.00      
12 B1 892 812 7.42      
13 B1 786 716 78.47      
14 B1 590 537 17.46      
15 B2 3376 3073 13.86      
16 B2 3356 3055 19.12      
17 B2 1456 1326 68.11      
18 B2 1398 1273 17.62      
19 B2 1114 1014 1.44      
20 B2 969 882 0.68      
21 B2 536i 488i 403.58      

Unscaled Zero Point Vibrational Energy (zpe) 15184.7 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 13824.1 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 HF/aug-cc-pVTZ
ABC
0.33904 0.29848 0.15874

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.231
C2 0.000 1.058 0.427
C3 0.000 -1.058 0.427
C4 0.000 0.668 -0.978
C5 0.000 -0.668 -0.978
H6 0.000 2.057 0.815
H7 0.000 -2.057 0.815
H8 0.000 1.334 -1.815
H9 0.000 -1.334 -1.815

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.32961.32962.30832.30832.09862.09863.32583.3258
C21.32962.11681.45772.22601.07133.13932.25883.2784
C31.32962.11682.22601.45773.13931.07133.27842.2588
C42.30831.45772.22601.33692.26763.26221.06932.1701
C52.30832.22601.45771.33693.26222.26762.17011.0693
H62.09861.07133.13932.26763.26224.11372.72794.2910
H72.09863.13931.07133.26222.26764.11374.29102.7279
H83.32582.25883.27841.06932.17012.72794.29102.6671
H93.32583.27842.25882.17011.06934.29102.72792.6671

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 111.735 N1 C2 H6 121.500
N1 C3 C5 111.735 N1 C3 H7 121.500
C2 N1 C3 105.501 C2 C4 C5 105.515
C2 C4 H8 126.027 C3 C5 C4 105.515
C3 C5 H9 126.027 C4 C2 H6 126.766
C4 C5 H9 128.458 C5 C3 H7 126.766
C5 C4 H8 128.458
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.208      
2 C -0.624      
3 C -0.624      
4 C -0.421      
5 C -0.421      
6 H 0.659      
7 H 0.659      
8 H 0.490      
9 H 0.490      


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 -2.174 2.174
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.767 0.000 0.000
y 0.000 -23.160 0.000
z 0.000 0.000 -32.296
Traceless
 xyz
x -4.039 0.000 0.000
y 0.000 8.872 0.000
z 0.000 0.000 -4.833
Polar
3z2-r2-9.666
x2-y2-8.607
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.011 0.000 0.000
y 0.000 9.605 0.000
z 0.000 0.000 7.481


<r2> (average value of r2) Å2
<r2> 81.177
(<r2>)1/2 9.010