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Cyclometalated Iridium(III) Complexes Containing Semicarbazone Ligands: Synthesis, Characterization, Photophysical and Biological Studies
Author(s) -
Graf Marion,
Gothe Yvonne,
MetzlerNolte Nils,
Czerwieniec Rafał,
Sünkel Karlheinz
Publication year - 2015
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201500240
Subject(s) - semicarbazone , orthorhombic crystal system , chemistry , chloroform , crystal structure , molecule , acetone , stereochemistry , iridium , crystallography , organic chemistry , catalysis
Abstract The synthesis, crystal structure, photophysical properties, and biological activity of the novel bis‐cyclometalated complexes [Ir(ptpy) 2 (vnsc)] ( 2 ) and [Ir(ptpy) 2 (acsc)] ( 3 ) [ptpy = 2‐( p ‐tolyl)pyridinato, vnsc = vanillin semicarbazone, acsc = acetone semicarbazone] are described. The new compounds were prepared by the reaction of [{Ir(μ‐Cl)(ptpy) 2 } 2 ] ( 1 ) with the corresponding semicarbazone ligands under basic conditions. The molecular structure of compound 3 was confirmed by a single‐crystal X‐ray diffraction study. The complex crystallized from chloroform as a mono‐ solvate in the orthorhombic space group Pcab with eight molecules in the unit cell.