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

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-208.260687
Energy at 298.15K-208.265115
HF Energy-208.260687
Nuclear repulsion energy149.581046
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 B3PW91/3-21G
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 3304 3176 0.19      
2 A1 3264 3137 3.63      
3 A1 1549 1489 0.96      
4 A1 1374 1320 3.95      
5 A1 1199 1152 0.00      
6 A1 1083 1041 25.70      
7 A1 1032 992 16.76      
8 A1 894 860 12.32      
9 A2 945 908 0.00      
10 A2 814 783 0.00      
11 A2 495 476 0.00      
12 B1 853 820 1.06      
13 B1 734 706 96.65      
14 B1 554 532 25.36      
15 B2 3280 3153 2.93      
16 B2 3257 3131 8.83      
17 B2 1352 1299 44.80      
18 B2 1297 1247 2.63      
19 B2 1017 977 15.87      
20 B2 915 880 0.31      
21 B2 493 474 0.85      

Unscaled Zero Point Vibrational Energy (zpe) 14851.9 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 14275.7 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 B3PW91/3-21G
ABC
0.32600 0.28940 0.15331

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.259
C2 0.000 1.081 0.428
C3 0.000 -1.081 0.428
C4 0.000 0.682 -0.991
C5 0.000 -0.682 -0.991
H6 0.000 2.090 0.814
H7 0.000 -2.090 0.814
H8 0.000 1.350 -1.838
H9 0.000 -1.350 -1.838

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.36401.36402.35152.35152.13732.13733.37873.3787
C21.36402.16251.47382.26331.08053.19512.28153.3234
C31.36402.16252.26331.47383.19511.08053.32342.2815
C42.35151.47382.26331.36442.28933.30831.07862.2018
C52.35152.26331.47381.36443.30832.28932.20181.0786
H62.13731.08053.19512.28933.30834.18082.75314.3439
H72.13733.19511.08053.30832.28934.18084.34392.7531
H83.37872.28153.32341.07862.20182.75314.34392.7005
H93.37873.32342.28152.20181.07864.34392.75312.7005

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 111.854 N1 C2 H6 121.496
N1 C3 C5 111.854 N1 C3 H7 121.496
C2 N1 C3 104.872 C2 C4 C5 105.710
C2 C4 H8 126.021 C3 C5 C4 105.710
C3 C5 H9 126.021 C4 C2 H6 126.650
C4 C5 H9 128.269 C5 C3 H7 126.650
C5 C4 H8 128.269
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.504      
2 C 0.041      
3 C 0.041      
4 C -0.258      
5 C -0.258      
6 H 0.244      
7 H 0.244      
8 H 0.225      
9 H 0.225      


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 -2.102 2.102
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.614 0.000 0.000
y 0.000 -22.453 0.000
z 0.000 0.000 -31.430
Traceless
 xyz
x -4.673 0.000 0.000
y 0.000 9.069 0.000
z 0.000 0.000 -4.396
Polar
3z2-r2-8.792
x2-y2-9.161
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.042 0.000 0.000
y 0.000 7.763 0.000
z 0.000 0.000 6.235


<r2> (average value of r2) Å2
<r2> 82.963
(<r2>)1/2 9.108