title: A chiral molecular square with metallo-corners for enantioselective sensing.
abstract: A family of chiral molecular squares based on fac-Re(CO)3Cl metallocorners and enantiopure atropisomeric bipyridine bridging ligands (L1-4) have been synthesized in high yields by refluxing ClRe(CO)5 and L1-4 in 1:1 molar ratio. These novel chiral metallocycles have been characterized by 1H and 13C{1H} NMR, UV-vis, luminescence, and circular dichroism (CD) spectroscopies, FAB mass spectrometry, and microanalysis. Molecular square 4 which contains four 1,1'-bi-2-naphthol functionalities exhibits interesting enantioselective luminescence quenching by 2-amino-1-propanol. This research illustrates the potential of generating novel functional materials based on supramolecular chemistry.
authors.affiliation: Department of Chemistry, CB # 3290, University of North Carolina, Chapel Hill, North Carolina 27599, USA.
authors.forename: Suk Joong
authors.initials: SJ
authors.lastname: Lee
authors.forename: Wenbin
authors.initials: W
authors.lastname: Lin
mesh_terms: D002942:Circular Dichroism; D008163:Luminescent Measurements; D009284:Naphthols / Q000737:chemistry; D009942:Organometallic Compounds / Q000737:chemistry*; D011725:Pyridines / Q000138:chemical synthesis / Q000737:chemistry; D013237:Stereoisomerism
chemical_list: C406944:BINOL, naphthol; D009284:Naphthols; D009942:Organometallic Compounds; D011725:Pyridines