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

using model chemistry: G2

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at G2
 hartrees
Energy at 0K-209.128768
Energy at 298.15K-209.123945
HF Energy-208.198342
Nuclear repulsion energy151.884132
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/6-31G*
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 3446 3246 3.08      
2 A1 3412 3214 6.77      
3 A1 1723 1623 0.22      
4 A1 1588 1496 22.98      
5 A1 1275 1201 0.29      
6 A1 1187 1119 28.78      
7 A1 1096 1033 1.40      
8 A1 944 889 13.15      
9 A2 1046 986 0.00      
10 A2 872 821 0.00      
11 A2 558 526 0.00      
12 B1 884 833 12.78      
13 B1 786 741 59.99      
14 B1 592 558 20.22      
15 B2 3423 3226 25.25      
16 B2 3406 3209 23.81      
17 B2 1465 1381 68.88      
18 B2 1405 1324 21.57      
19 B2 1117 1053 0.68      
20 B2 968 912 0.72      
21 B2 977i 920i 802.90      

Unscaled Zero Point Vibrational Energy (zpe) 15108.3 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 14235.1 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 MP2=FULL/6-31G*
ABC
0.33529 0.29694 0.15748

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.243
C2 0.000 1.054 0.420
C3 0.000 -1.054 0.420
C4 0.000 0.686 -0.977
C5 0.000 -0.686 -0.977
H6 0.000 2.064 0.816
H7 0.000 -2.064 0.816
H8 0.000 1.360 -1.824
H9 0.000 -1.360 -1.824

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.33721.33722.32392.32392.10822.10823.35493.3549
C21.33722.10771.44462.23161.08543.14332.26453.2957
C31.33722.10772.23161.44463.14331.08543.29572.2645
C42.32391.44462.23161.37272.26133.28351.08202.2146
C52.32392.23161.44461.37273.28352.26132.21461.0820
H62.10821.08543.14332.26133.28354.12902.73184.3237
H72.10823.14331.08543.28352.26134.12904.32372.7318
H83.35492.26453.29571.08202.21462.73184.32372.7202
H93.35493.29572.26452.21461.08204.32372.73182.7202

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 113.766 N1 C2 H6 119.765
N1 C3 C5 113.766 N1 C3 H7 119.765
C2 N1 C3 102.602 C2 C4 C5 104.933
C2 C4 H8 127.499 C3 C5 C4 104.933
C3 C5 H9 127.499 C4 C2 H6 126.469
C4 C5 H9 127.568 C5 C3 H7 126.469
C5 C4 H8 127.568
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability