Two-Level Self-Organisation of Arrays of [2×2] Grid-Type Tetranuclear Metal Complexes by Hydrogen Bonding

✍ Scribed by Esther Breuning; Ulrich Ziener; Jean-Marie Lehn; Elina Wegelius; Kari Rissanen

• Publisher: John Wiley and Sons
• Year: 2001
• Tongue: English
• Weight: 479 KB
• Volume: 2001
• Category: Article
• ISSN: 1434-1948
• DOI: 10.1002/1099-0682(200106)2001:6<1515::aid-ejic1515>3.0.co;2-t

✦ Synopsis

Here we report on the synthesis and characterisation of four new complexes of the [2×2] M 4 II grid-type (M = Co, Fe, Zn) with oligopyridine-derived ligands. The presence of aminopyrazine and aminopyrimidine moieties at the edge of the ligands potentially enables the formation of infinite hydrogen-bonded multi-grid networks. The ligands were synthesised by subsequent stannylations and Stille-type coupling reactions. The complexes were obtained by self-assembly of the ligand with the metal salt. The single-crystal X-ray structure was determined for the Co complex 7 containing aminopyrimidine as the hydrogen-bonding moiety [P1 ¯; a = [a]