An extended metal chain with the 2,7-bis(dipyridyldiamino)-1,8- naphthyridine (H4bdpdany) ligand - The longest even-numbered metal chain complex
Journal
European Journal of Inorganic Chemistry
Journal Issue
13
Pages
2025-2028
Date Issued
2011
Author(s)
Abstract
Abstract A decanickel extended metal atom chain (EMAC) complex with a new pyridyl‐ and naphthyridyl‐modulated ligand (H 4 bdpdany) was synthesized. Analysis of the crystal structure of complex [Ni 10 (μ 10 ‐bdpdany) 4 (NCS) 2 ](PF 6 ) 2 ( 1 ) shows that all of the bdpdany 4– ligands bind the metal in an all‐ syn conformation, and structural data reveals short Ni ··· Ni distances in the range 2.36–2.23 Å. Temperature‐dependent magnetic measurements performed on two independent high‐spin nickel(II) ions of complex [Ni 10 (μ 10 ‐bdpdany) 4 (NCS) 2 ](PF 6 ) 2 ( 1 ) demonstrate that the metal chain is antiferromagnetic. The longer distance between the two terminal high‐spin nickel(II) ions relative to those in tetranickel and hexanickel strings causes a decrease in the magnitude of the antiferromagnetic interaction.
Type
journal article