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

using model chemistry: ROHF/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 ROHF/6-31+G**
 hartrees
Energy at 0K-208.205195
Energy at 298.15K 
HF Energy-208.205195
Nuclear repulsion energy151.790392
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 ROHF/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 3443 2947 2.05      
2 A1 3414 2922 3.87      
3 A1 1708 1462 0.22      
4 A1 1581 1353 23.95      
5 A1 1272 1089 0.63      
6 A1 1183 1013 31.73      
7 A1 1096 938 1.70      
8 A1 943 807 10.65      
9 A2 1044 893 0.00      
10 A2 874 748 0.00      
11 A2 554 475 0.00      
12 B1 885 758 11.93      
13 B1 784 671 90.28      
14 B1 589 504 18.56      
15 B2 3423 2929 28.21      
16 B2 3408 2917 12.58      
17 B2 1465 1254 74.19      
18 B2 1404 1202 21.43      
19 B2 1121 959 1.83      
20 B2 970 830 1.19      
21 B2 792i 678i 708.29      

Unscaled Zero Point Vibrational Energy (zpe) 15184.8 cm-1
Scaled (by 0.8559) Zero Point Vibrational Energy (zpe) 12996.7 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 ROHF/6-31+G**
ABC
0.33715 0.29676 0.15783

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/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 2.060 0.818
H7 0.000 -2.060 0.818
H8 0.000 1.339 -1.819
H9 0.000 -1.339 -1.819

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.33391.33392.31572.31572.10222.10223.33523.3352
C21.33392.12231.46122.23231.07273.14582.26363.2873
C31.33392.12232.23231.46123.14581.07273.28732.2636
C42.31571.46122.23231.34202.27283.27031.07182.1776
C52.31572.23231.46121.34203.27032.27282.17761.0718
H62.10221.07273.14582.27283.27034.12062.73394.3021
H72.10223.14581.07273.27032.27284.12064.30212.7339
H83.33522.26363.28731.07182.17762.73394.30212.6777
H93.33523.28732.26362.17761.07184.30212.73392.6777

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 111.806 N1 C2 H6 121.358
N1 C3 C5 111.806 N1 C3 H7 121.358
C2 N1 C3 105.413 C2 C4 C5 105.487
C2 C4 H8 125.970 C3 C5 C4 105.487
C3 C5 H9 125.970 C4 C2 H6 126.835
C4 C5 H9 128.543 C5 C3 H7 126.835
C5 C4 H8 128.543
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.291      
2 C -0.116      
3 C -0.116      
4 C -0.219      
5 C -0.219      
6 H 0.233      
7 H 0.233      
8 H 0.249      
9 H 0.249      


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 -2.293 2.293
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.085 0.000 0.000
y 0.000 -23.150 0.000
z 0.000 0.000 -32.702
Traceless
 xyz
x -4.158 0.000 0.000
y 0.000 9.243 0.000
z 0.000 0.000 -5.085
Polar
3z2-r2-10.169
x2-y2-8.934
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 81.676
(<r2>)1/2 9.037