Designed Topology and Site-Selective Metal Composition in Tetranuclear [MM′⋅⋅⋅M′M] Linear Complexes

• Published in: Chemistry : a European journal Vol. 15; no. 42; pp. 11235 - 11243
• Main Authors: Barrios, Leoní A., Aguilà, David, Roubeau, Olivier, Gamez, Patrick, Ribas-Ariño, Jordi, Teat, Simon J., Aromí, Guillem
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 26.10.2009; WILEY‐VCH Verlag
• Subjects: heterometallic complexes; ligand design; magnetic properties; quantum chemistry

The ligand 1,3‐bis[3‐oxo‐3‐(2‐hydroxyphenyl)propionyl]benzene (H4L), designed to align transition metals into tetranuclear linear molecules, reacts with MII salts (M=Ni, Co, Cu) to yield complexes with the expected [MM⋅⋅⋅MM] topology. The novel complexes [Co4L2(py)6] (2; py=pyridine) and [Na(py)2][C...