Syntheses, emission properties and intramolecular ligand exchange of zinc complexes with ligands belonging to the tmpa family

• Published in: Dalton transactions : an international journal of inorganic chemistry Vol. 40; no. 18; pp. 5090 - 5101
• Main Authors: Beitat, Alexander, Foxon, Simon P, Brombach, Christoph-Cornelius, Hausmann, Heike, Heinemann, Frank W, Hampel, Frank, Monkowius, Uwe, Hirtenlehner, Christa, Knör, Günther, Schindler, Siegfried
• Format: Journal Article
• Language: English
• Published: England 01.01.2011
• Subjects: Coordination Complexes - chemical synthesis; Coordination Complexes - chemistry; Crystallography, X-Ray; Emission; Excitation; Ligands; Magnetic Resonance Spectroscopy; Molecular Conformation; Prints; Pyridines - chemistry; Spectrophotometry, Ultraviolet; Zinc; Zinc - chemistry
• ISSN: 1477-9226; 1477-9234
• DOI: 10.1039/c0dt01339k

The zinc complexes [(L1)(2)Zn(MeOH)(2)](OTf)(2), [(L1)ZnCl(2)], [(L2)ZnCl(2)], [(L2)Zn(OTf)(H(2)O)]OTf and [(Me-bispic)ZnCl(2)] of the ligands N-[(2-pyridyl)methyl]-2,2'-dipyridylamine (L1), N-[bis(2-pyridyl)methyl]-2-pyridylamine (L2) and N-methyl-[bis(2-pyridyl)methyl]amine (Me-bispic) were synthesised and characterised. The first copper(I) complexes of the ligands L1 and L2 were also synthesised and structurally characterised. [(L1)ZnCl(2)] showed unexpected fluxional behaviour in solution and revealed an interesting intramolecular ligand exchange mechanism in the coordination sphere of the zinc ion. Furthermore, strong blue emission was observed under UV-light excitation.