A highly luminescent tetranuclear copper(I) cluster: Structure and photophysical properties

A tetranuclear copper(I) cluster Cu 4(CCPh) 4L 2 (1) [L=Ph 2PCH 2(CH 2OCH 2) 2CH 2PPh 2] prepared by self assembly reaction of [Cu(CCPh)] n with the bridging diphosphine ligand L comprises a Cu 2(L) 2 metallomacrocycle with two phenylethynyl copper(I) units encapsulated in the host site. The four Cu(I) are coplanar and arranged as a zigzag chain and the complex displays an intense emission at 522 nm with a lifetime of 9.8 μs and a quantum yield of 0.42 in dichloromethane.link_to_subscribed_fulltex