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Issue 6, 2010
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Manisyl-substituted polypyridine coordination compounds: Metallo-supramolecular networks of interdigitated double helices assembled via CH⋯π and π–π interactions

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Abstract

A series of ML2 coordination compounds of manisyl-substituted 2-pyridin-2-yl-1,10-phenanthrolines (pherpys) and 2,2′:6′,2′′-terpyridines (terpys) with Fe(II), Co(II), Ni(II), Cu(II), Zn(II), Ru(II), and Os(II), were synthesized. The pyridyl-phenanthroline–metal complexes form isomorphous crystals (space group Pcca), except for the zinc complex, which is isostructural but not isomorphous (space group P21/c). Traces of the Ru complex induce the Zn complex to crystallize in the Pcca modification. Terpyridine complexes are isostructural but divided into two subgroups (Pnna and C2/c). Within the crystal lattice, the dications arrange into two-dimensional sheets of interdigitated left- and right-handed double helices via CH⋯π and π–π interactions of the pendant manisyl functionalities. All of the complexes exhibit weak ligand charge transfer (LCT) emission in solution at room temperature and the osmium complexes possess an emissive metal to ligand charge transfer (MLCT) state.

Graphical abstract: Manisyl-substituted polypyridine coordination compounds: Metallo-supramolecular networks of interdigitated double helices assembled via CH⋯π and π–π interactions

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Article information


Submitted
09 Jun 2009
Accepted
20 Oct 2009
First published
11 Dec 2009

Dalton Trans., 2010,39, 1519-1531
Article type
Paper

Manisyl-substituted polypyridine coordination compounds: Metallo-supramolecular networks of interdigitated double helices assembled via CH⋯π and π–π interactions

J. K. Klosterman, A. Linden, D. K. Frantz and J. S. Siegel, Dalton Trans., 2010, 39, 1519
DOI: 10.1039/B911272C

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