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

using model chemistry: HF/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/cc-pVTZ
 hartrees
Energy at 0K-208.268785
Energy at 298.15K 
HF Energy-208.268785
Nuclear repulsion energy152.212560
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/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 3397 3092 2.66      
2 A1 3358 3056 3.63      
3 A1 1697 1544 0.01      
4 A1 1569 1428 20.94      
5 A1 1267 1153 0.42      
6 A1 1175 1069 30.67      
7 A1 1085 987 1.88      
8 A1 941 857 14.22      
9 A2 1048 954 0.00      
10 A2 881 801 0.00      
11 A2 558 508 0.00      
12 B1 891 811 8.02      
13 B1 787 716 72.56      
14 B1 591 538 18.37      
15 B2 3375 3071 14.87      
16 B2 3353 3052 22.51      
17 B2 1457 1326 69.28      
18 B2 1397 1272 18.19      
19 B2 1113 1013 1.00      
20 B2 968 881 0.48      
21 B2 583i 531i 410.28      

Unscaled Zero Point Vibrational Energy (zpe) 15162.1 cm-1
Scaled (by 0.9101) Zero Point Vibrational Energy (zpe) 13799.0 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 HF/cc-pVTZ
ABC
0.33929 0.29821 0.15871

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.232
C2 0.000 1.058 0.427
C3 0.000 -1.058 0.427
C4 0.000 0.668 -0.979
C5 0.000 -0.668 -0.979
H6 0.000 2.057 0.814
H7 0.000 -2.057 0.814
H8 0.000 1.334 -1.816
H9 0.000 -1.334 -1.816

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.32971.32972.30952.30952.09862.09863.32683.3268
C21.32972.11581.45812.22571.07143.13862.25913.2782
C31.32972.11582.22571.45813.13861.07143.27822.2591
C42.30951.45812.22571.33642.26773.26181.06942.1698
C52.30952.22571.45811.33643.26182.26772.16981.0694
H62.09861.07143.13862.26773.26184.11332.72774.2908
H72.09863.13861.07143.26182.26774.11334.29082.7277
H83.32682.25913.27821.06942.16982.72774.29082.6672
H93.32683.27822.25912.16981.06944.29082.72772.6672

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 111.789 N1 C2 H6 121.488
N1 C3 C5 111.789 N1 C3 H7 121.488
C2 N1 C3 105.422 C2 C4 C5 105.500
C2 C4 H8 126.021 C3 C5 C4 105.500
C3 C5 H9 126.021 C4 C2 H6 126.723
C4 C5 H9 128.479 C5 C3 H7 126.723
C5 C4 H8 128.479
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.233      
2 C -0.040      
3 C -0.040      
4 C -0.200      
5 C -0.200      
6 H 0.176      
7 H 0.176      
8 H 0.181      
9 H 0.181      


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 -2.125 2.125
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.523 0.000 0.000
y 0.000 -23.083 0.000
z 0.000 0.000 -31.957
Traceless
 xyz
x -4.003 0.000 0.000
y 0.000 8.658 0.000
z 0.000 0.000 -4.654
Polar
3z2-r2-9.309
x2-y2-8.441
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.022 0.000 0.000
y 0.000 9.228 0.000
z 0.000 0.000 6.829


<r2> (average value of r2) Å2
<r2> 81.047
(<r2>)1/2 9.003