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Role of peripheral phenanthroline groups in the self-assembly of self-assembled molecular triangles
Mili C. Naranthatta, Venkatachalam Ramkumar,
Published in Springer India
2015
Volume: 127
   
Issue: 2
Pages: 273 - 280
Abstract
Self-assembled molecular triangles [Pd3(phen)3(imidazolate)3](NO3)3, 1a and [Pd3(phen)3 (imidazolate)3](PF6)3, 1b are prepared by the combination of imidazole with Pd(phen)(NO3)2 and Pd(phen) (PF6)2, respectively. Imidazole was deprotonated during the complexation reactions and the imidazolate so formed acted as a bis-monodentate bridging ligand to form the bowl-shaped trinuclear architectures of 1a/b. Relative orientation of the imidazolate moieties can be best described as syn,anti,antias observed in the crystal structure of 1b. However, in solution state, slow conformational changes are assumed on the basis of 1HNMR spectral data. The molecular triangles are crafted with three peripheral phen units capable of π-π stacking interactions. Well-fashioned intermolecular π-π interactions are observed in the solid-state, wherein further self-assembly of already self-assembled triangle is observed. © 2015 Indian Academy of Sciences.
About the journal
JournalData powered by TypesetJournal of Chemical Sciences
PublisherData powered by TypesetSpringer India
ISSN09743626
Open AccessYes
Concepts (13)
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    Complexation
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    Crystal orientation
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    Crystal structure
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    Palladium compounds
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    1 ,10-phenanthroline
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    Bridging ligands
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    COMPLEXATION REACTION
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    Conformational change
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    Imidazole
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    MOLECULAR TRIANGLE
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    RELATIVE ORIENTATION
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    Stacking interaction
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    Self assembly