60484-99-3Relevant academic research and scientific papers
Sterically-limited self-assembly of Pt4 macrocycles into discrete non-covalent nanotubes: Porous supramolecular tetramers and hexamers
Frischmann, Peter D.,Sahli, Brian J.,Guieu, Samuel,Patrick, Brian O.,MacLachlan, Mark J.
, p. 13712 - 13721 (2013/01/15)
We report a template-free strategy based on steric repulsion for the isolation of discrete columnar aggregates of macrocycles. Specifically, introduction of sterically-demanding trityl-derived substituents at the periphery of Pt4 Schiff base macrocycles limits the otherwise infinite one-dimensional columnar aggregation to discrete tetrameric and hexameric assemblies. Single crystal X-ray diffraction studies of these compounds reveal discrete nanotubes of finite length that pack inefficiently resulting in three-dimensional networks of interconnected void space. The discrete assemblies were studied by N2 adsorption and show enhanced surface area when stacked. In the absence of bulky substituents the macrocycles are nonporous. This strategy for engineering discrete supramolecular macrocyclic aggregates may be generalized to other columnar assembling systems. Copyright
Columnar organization of head-to-tail self-assembled Pt4 rings
Frischmann, Peter D.,Guieu, Samuel,Tabeshi, Raymond,MacLachlan, Mark J.
supporting information; experimental part, p. 7668 - 7675 (2010/08/06)
Coordination of Pt2+ to a family of tunable Schiff base proligands directs the 12-component self-assembly of disk-shaped Pt4 rings in a head-to-tail fashion. Aggregation of these S4 symmetric Pt4 macrocycles int
