SCHEDULED MAINTENANCE
Synergistic π–π and Pt–Pt interactions in luminescent hybrid inorganic/organic dual columnar liquid crystals†
Abstract
A new triphenylene-isocyanide CN-C6H4-O-(CH2)6-TriPh, non mesogenic, and their ortho-metallated benzoquinolate (bzq) complexes, [M(bzq)X(CN-C6H4-O-(CH2)6-TriPh)] (M = Pd, Pt; X = Cl, I) and [Pt(bzq)(CN-C6H4-O-(CH2)6-TriPh)2]A (A = NO3−, BF4−, PF6−), all displaying a columnar mesophase, have been prepared. The structure of the mesophase, determined by X-ray diffraction methods, is uncommon and consists of a central column formed by stacking of the organometallic benzoquinoline-platinum fragments, surrounded by six columns in hexagonal disposition formed by stacking of the triphenylene groups. These materials show aggregation-induced phosphorescence based on inter-disk Pt⋯Pt interactions.
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