Completely Stereospecific Self-Assembly of a Circular Helicate

Olimpia Mamula; Alex von Zelewsky; Gérald Bernardinelli

doi:10.1002/(SICI)1521-3773(19980216)37:3<289::AID-ANIE289>3.0.CO;2-M

Completely Stereospecific Self-Assembly of a Circular Helicate

Angew Chem Int Ed Engl. 1998 Feb 16;37(3):289-293. doi: 10.1002/(SICI)1521-3773(19980216)37:3<289::AID-ANIE289>3.0.CO;2-M.

Authors

Olimpia Mamula¹, Alex von Zelewsky¹, Gérald Bernardinelli²

Affiliations

¹ Institute of Inorganic Chemistry, University of Fribourg, Perolles, CH-1700 Fribourg (Switzerland), Fax: Int. code+(41) 26 300-9738.
² Laboratory of X-Ray Crystallography, University of Geneva, 24, quai E. Ansermet, CH-1211 Geneva (Switzerland).

PMID: 29711245
DOI: 10.1002/(SICI)1521-3773(19980216)37:3<289::AID-ANIE289>3.0.CO;2-M

Abstract

A nanoscale turbine wheel is an apt description of the structure of the enantiomerically pure helicate [Ag₆ (L2)₆ ]⁶⁺ (1), which precipitates as PF₆ salt on mixing dissolved AgPF₆ with the ligand L2 (a bis-bidentate ligand comprising two condensed α-pinene/bipyridine units linked by a xylylene bridge). The helicate has an outer diameter of about 3 nm and an inner diameter of 0.84 nm, and is a potential model for the study of stereospecific recognition processes.

Keywords: Bipyridine ligands; Chirality; Helical structures; Silver; Supramolecular chemistry.