title: Networking of calixcrowns: from heteronuclear endo/exocyclic coordination polymers to a photoluminescence switch.
abstract: Solvato-PL switching and shrinking-and-opening process: we present two CuI coordination polymers of calix[4]-bis-monothiacrown (L) obtained in the absence (1) and presence (2) of KI. The structures show not only very unusual CuI-based network arrangements but also unique reversible photolunimescence switching behavior induced by removal of coordinated solvent. Furthermore, upon inclusion of K+ ions the crown ring shrinks leading to "opening" of opposite aromatic rings in the host calixarene unit, rare behavior for this class of compound.
authors.affiliation: Department of Chemistry (BK21) and Research Institute of Natural Science, Gyeongsang National University, Jinju 660-701, South Korea.
authors.forename: Jai Young
authors.initials: JY
authors.lastname: Lee
authors.forename: Hyun Jee
authors.initials: HJ
authors.lastname: Kim
authors.forename: Jong Hwa
authors.initials: JH
authors.lastname: Jung
authors.forename: Wonbo
authors.initials: W
authors.lastname: Sim
authors.forename: Shim Sung
authors.initials: SS
authors.lastname: Lee
mesh_terms: D047250:Calixarenes / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D043844:Crown Ethers / Q000737:chemistry*; D003500:Cyclization; D007454:Iodides / Q000737:chemistry*; D008024:Ligands; D049449:Luminescence; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D010777:Photochemistry; D011108:Polymers / Q000737:chemistry*; D011193:Potassium Iodide / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D013438:Sulfhydryl Compounds / Q000737:chemistry
chemical_list: D043844:Crown Ethers; D007454:Iodides; D008024:Ligands; D009942:Organometallic Compounds; D011108:Polymers; D013438:Sulfhydryl Compounds; D047250:Calixarenes; D011193:Potassium Iodide; D003300:Copper; C073870:cuprous iodide