Bis(4‐methylthiazolyl)isoindoline (4‐Mebti) Complexes of Palladium: Cationic [PdII(4‐Mebti)L]+Species with a L = Neutral Group XIV or Group XV Donor Ligand
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Media type:
E-Article
Title:
Bis(4‐methylthiazolyl)isoindoline (4‐Mebti) Complexes of Palladium: Cationic [PdII(4‐Mebti)L]+Species with a L = Neutral Group XIV or Group XV Donor Ligand
Contributor:
Bröring, Martin;
Kleeberg, Christian
Published:
Wiley, 2011
Published in:
Zeitschrift für anorganische und allgemeine Chemie, 637 (2011) 12, Seite 1769-1776
Language:
English
DOI:
10.1002/zaac.201100211
ISSN:
0044-2313;
1521-3749
Origination:
Footnote:
Description:
AbstractLigand exchange has been studied on the chlorido palladium(II) complex of the bis(4‐methylthiazolylimino)isoindoline ligand, [Pd(4‐Mebti)Cl], with a number of neutral group XIV and group XV donor ligands in the presence of the sodium salt of tetrakis[3,5‐bis(trifluoromethyl)phenyl]borate NaB(ArF)4. Seven new cationic compounds with L = PMe3,tBuNH2, PhNH2, py, 2,6‐Me2py, MeCN and MeNC were obtained as B(ArF)4–salts, and were characterized by analytic, spectroscopic and crystallographic means. Further attempts to observe ligand exchange reactions with either the softer AsMe3or SbMe3donor ligands or with different carbenes were unsuccessful and led to decomposed material or to mixtures of different compounds. Most of the crystallographically characterized complexes have been found to reside in a pseudoplanar conformation regardless of the size or cone angle of the external donor ligand. The derivatives carrying an sp2‐type donor atom (L = py, 2,6‐Me2py), however, adopt helical forms in the solid state.1H NMR and UV/Vis spectroscopic data suggest that this helicity is also present in solution. The expected chirality, however, could not be observed due to the lack of diastereotopic ligand protons.