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

using model chemistry: B1B95/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at B1B95/3-21G*
 hartrees
Energy at 0K-208.241879
Energy at 298.15K-208.246314
HF Energy-208.241879
Nuclear repulsion energy150.085492
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 B1B95/3-21G*
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 3329 3179 0.09      
2 A1 3289 3141 3.37      
3 A1 1568 1497 0.90      
4 A1 1388 1325 4.35      
5 A1 1208 1153 0.02      
6 A1 1092 1043 26.79      
7 A1 1041 994 14.64      
8 A1 896 856 12.63      
9 A2 955 912 0.00      
10 A2 826 789 0.00      
11 A2 496 474 0.00      
12 B1 865 826 0.68      
13 B1 742 709 97.56      
14 B1 556 531 24.48      
15 B2 3305 3156 2.39      
16 B2 3282 3134 8.19      
17 B2 1362 1301 45.62      
18 B2 1304 1246 2.42      
19 B2 1027 981 16.24      
20 B2 924 883 0.06      
21 B2 484 462 0.57      

Unscaled Zero Point Vibrational Energy (zpe) 14969.3 cm-1
Scaled (by 0.9549) Zero Point Vibrational Energy (zpe) 14294.2 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 B1B95/3-21G*
ABC
0.32818 0.29139 0.15434

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.254
C2 0.000 1.077 0.426
C3 0.000 -1.077 0.426
C4 0.000 0.680 -0.988
C5 0.000 -0.680 -0.988
H6 0.000 2.083 0.813
H7 0.000 -2.083 0.813
H8 0.000 1.347 -1.832
H9 0.000 -1.347 -1.832

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.35871.35872.34312.34312.12972.12973.36713.3671
C21.35872.15501.46932.25601.07753.18442.27413.3132
C31.35872.15502.25601.46933.18441.07753.31322.2741
C42.34311.46932.25601.36002.28303.29831.07552.1957
C52.34312.25601.46931.36003.29832.28302.19571.0755
H62.12971.07753.18442.28303.29834.16682.74494.3314
H72.12973.18441.07753.29832.28304.16684.33142.7449
H83.36712.27413.31321.07552.19572.74494.33142.6943
H93.36713.31322.27412.19571.07554.33142.74492.6943

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 111.838 N1 C2 H6 121.463
N1 C3 C5 111.838 N1 C3 H7 121.463
C2 N1 C3 104.932 C2 C4 C5 105.696
C2 C4 H8 125.965 C3 C5 C4 105.696
C3 C5 H9 125.965 C4 C2 H6 126.699
C4 C5 H9 128.339 C5 C3 H7 126.699
C5 C4 H8 128.339
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.504      
2 C 0.042      
3 C 0.042      
4 C -0.255      
5 C -0.255      
6 H 0.242      
7 H 0.242      
8 H 0.223      
9 H 0.223      


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 -2.085 2.085
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.557 0.000 0.000
y 0.000 -22.477 0.000
z 0.000 0.000 -31.429
Traceless
 xyz
x -4.604 0.000 0.000
y 0.000 9.016 0.000
z 0.000 0.000 -4.412
Polar
3z2-r2-8.824
x2-y2-9.080
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.027 0.000 0.000
y 0.000 7.709 0.000
z 0.000 0.000 6.185


<r2> (average value of r2) Å2
<r2> 82.523
(<r2>)1/2 9.084