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

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-34.776784
Energy at 298.15K-34.781257
HF Energy-34.776784
Nuclear repulsion energy75.282328
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 B3LYP/CEP-121G
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 3244 3161 4.75      
2 A1 3205 3123 4.76      
3 A1 1523 1484 0.03      
4 A1 1391 1355 10.48      
5 A1 1168 1138 1.22      
6 A1 1068 1040 43.24      
7 A1 1036 1009 5.62      
8 A1 867 845 9.82      
9 A2 911 888 0.00      
10 A2 808 787 0.00      
11 A2 482 469 0.00      
12 B1 826 805 2.27      
13 B1 728 710 96.08      
14 B1 540 526 18.36      
15 B2 3217 3135 17.14      
16 B2 3198 3116 15.05      
17 B2 1335 1301 51.45      
18 B2 1282 1250 0.86      
19 B2 1025 998 9.23      
20 B2 918 895 0.01      
21 B2 595 579 6.35      

Unscaled Zero Point Vibrational Energy (zpe) 14682.2 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 14307.8 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 B3LYP/CEP-121G
ABC
0.31982 0.28420 0.15048

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.271
C2 0.000 1.092 0.430
C3 0.000 -1.092 0.430
C4 0.000 0.691 -1.001
C5 0.000 -0.691 -1.001
H6 0.000 2.101 0.830
H7 0.000 -2.101 0.830
H8 0.000 1.363 -1.850
H9 0.000 -1.363 -1.850

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.37801.37802.37442.37442.14632.14633.40523.4052
C21.37802.18361.48592.28601.08553.21752.29583.3501
C31.37802.18362.28601.48593.21751.08553.35012.2958
C42.37441.48592.28601.38212.31113.33881.08272.2226
C52.37442.28601.48591.38213.33882.31112.22261.0827
H62.14631.08553.21752.31113.33884.20132.78004.3797
H72.14633.21751.08553.33882.31114.20134.37972.7800
H83.40522.29583.35011.08272.22262.78004.37972.7262
H93.40523.35012.29582.22261.08274.37972.78002.7262

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 111.953 N1 C2 H6 120.739
N1 C3 C5 111.953 N1 C3 H7 120.739
C2 N1 C3 104.799 C2 C4 C5 105.647
C2 C4 H8 125.984 C3 C5 C4 105.647
C3 C5 H9 125.984 C4 C2 H6 127.308
C4 C5 H9 128.369 C5 C3 H7 127.308
C5 C4 H8 128.369
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.039      
2 C -0.264      
3 C -0.264      
4 C -0.113      
5 C -0.113      
6 H 0.170      
7 H 0.170      
8 H 0.188      
9 H 0.188      


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 -2.423 2.423
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.686 0.000 0.000
y 0.000 -23.030 0.000
z 0.000 0.000 -32.939
Traceless
 xyz
x -3.702 0.000 0.000
y 0.000 9.283 0.000
z 0.000 0.000 -5.581
Polar
3z2-r2-11.162
x2-y2-8.656
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.548 0.000 0.000
y 0.000 8.885 0.000
z 0.000 0.000 7.339


<r2> (average value of r2) Å2
<r2> 69.937
(<r2>)1/2 8.363