Coordination Chemistry of the Ditopic Ligand 4-[6-(2-Pyridyl)-2-pyridyl]-6-(2-pyridyl)pyrimidine: Encapsulation of Nitrate by [2 × 2]Grid Complexes

✍ Scribed by Larisa Kovbasyuk; Hans Pritzkow; Roland Krämer

• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 182 KB
• Volume: 2005
• Category: Article
• ISSN: 1434-1948
• DOI: 10.1002/ejic.200400673

✦ Synopsis

Abstract

We describe herein the synthesis, physical properties and crystal structures of metal complexes with the new ligand 6‐(2‐pyridyl)‐4‐[6‐(2‐pyridyl)‐2‐pyridyl]pyrimidine (L). Reactions of L with Ni^II^, Co^II^, Fe^II^, Zn^II^ and Cu^II^ nitrates in a 1:1 ratio leads to the self‐assembled tetranuclear [2 × 2] grid complexes 1–5 with encapsulated NO~3~^–^ ions, as confirmed by the X‐ray crystal structures of Ni~4~L~4~(DMSO)~2~(H~2~O)~2~(ClO~4~)~7~·4 DMSO·6 H~2~O (1) and Co~4~L~4~(DMF)~4~(ClO~4~)~7~ (2). The mononuclear copper(I) complex [CuL(PPh~3~)~2~]‐ClO~4~·2 (CH~3~CN) (6) and the binuclear [Cu~2~L~2~(CN)(PPh~3~)~2~]‐ClO~4~ (7) were synthesized from L and [Cu(PPh~3~)~3~]Cl. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)