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

using model chemistry: HF/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-208.212546
Energy at 298.15K 
HF Energy-208.212546
Nuclear repulsion energy151.786414
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/6-31+G**
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 3427 3099 1.69      
2 A1 3394 3069 3.11      
3 A1 1707 1544 0.15      
4 A1 1579 1427 23.38      
5 A1 1269 1147 0.67      
6 A1 1180 1067 32.48      
7 A1 1093 989 1.56      
8 A1 942 852 10.77      
9 A2 1041 941 0.00      
10 A2 875 791 0.00      
11 A2 554 501 0.00      
12 B1 885 800 10.93      
13 B1 784 708 90.74      
14 B1 588 531 18.67      
15 B2 3406 3080 17.73      
16 B2 3389 3064 17.71      
17 B2 1461 1321 75.41      
18 B2 1399 1265 21.62      
19 B2 1120 1012 2.16      
20 B2 968 875 0.93      
21 B2 801i 724i 718.32      

Unscaled Zero Point Vibrational Energy (zpe) 15128.6 cm-1
Scaled (by 0.9042) Zero Point Vibrational Energy (zpe) 13679.3 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/6-31+G**
ABC
0.33707 0.29681 0.15783

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.235
C2 0.000 1.061 0.427
C3 0.000 -1.061 0.427
C4 0.000 0.671 -0.981
C5 0.000 -0.671 -0.981
H6 0.000 2.061 0.817
H7 0.000 -2.061 0.817
H8 0.000 1.338 -1.820
H9 0.000 -1.338 -1.820

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.33391.33392.31542.31542.10302.10303.33513.3351
C21.33392.12281.46122.23241.07313.14682.26393.2873
C31.33392.12282.23241.46123.14681.07313.28732.2639
C42.31541.46122.23241.34192.27283.27071.07182.1771
C52.31542.23241.46121.34193.27072.27282.17711.0718
H62.10301.07313.14682.27283.27074.12222.73424.3021
H72.10303.14681.07313.27072.27284.12224.30212.7342
H83.33512.26393.28731.07182.17712.73424.30212.6763
H93.33513.28732.26392.17711.07184.30212.73422.6763

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 111.780 N1 C2 H6 121.408
N1 C3 C5 111.780 N1 C3 H7 121.408
C2 N1 C3 105.442 C2 C4 C5 105.499
C2 C4 H8 126.001 C3 C5 C4 105.499
C3 C5 H9 126.001 C4 C2 H6 126.812
C4 C5 H9 128.500 C5 C3 H7 126.812
C5 C4 H8 128.500
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.281      
2 C -0.070      
3 C -0.070      
4 C -0.140      
5 C -0.140      
6 H 0.168      
7 H 0.168      
8 H 0.183      
9 H 0.183      


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 -2.292 2.292
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.042 0.000 0.000
y 0.000 -23.121 0.000
z 0.000 0.000 -32.682
Traceless
 xyz
x -4.141 0.000 0.000
y 0.000 9.241 0.000
z 0.000 0.000 -5.101
Polar
3z2-r2-10.202
x2-y2-8.921
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.448 0.000 0.000
y 0.000 9.706 0.000
z 0.000 0.000 6.987


<r2> (average value of r2) Å2
<r2> 81.661
(<r2>)1/2 9.037