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


Klosterman, J K; Linden, A; Frantz, D K; Siegel, J S (2010). Manisyl-substituted polypyridine coordination compounds: Metallo-supramolecular networks of interdigitated double helices assembled via CH···π and π–π interactions. Dalton Transactions, 39(6):1519-1531.

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 and – 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.

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 and – 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.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Language:English
Date:14 February 2010
Deposited On:15 Jan 2010 09:58
Last Modified:05 Apr 2016 13:39
Publisher:Royal Society of Chemistry
ISSN:1477-9226
Publisher DOI:https://doi.org/10.1039/b911272c
PubMed ID:20104313

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