A new cobalt triangular prism supramolecular flask: Encapsulation of a quinhydrone cofactor for hydrogenation of nitroarenes with high selectivity and efficiency

摘要: Abstract A new M6L3 metal-organic triangular prism host Co–L1 was synthesized that contains a sufficiently large cavity for encapsulation of quinhydrone (QHQ) electron transporter to form charge-transfer complexes accelerating delivery. Through the strong coordinating ability ONP chelator, suitable redox potential obtained combination light-driven proton reduction with selective hydrogenation nitro groups. The experimental results showed regulation is very beneficial hydrogen production and introduction QHQ accelerates transfer increases reaction rate. Control experiments based on an inhibitor mononuclear compound resembling cobalt corner suggest enzyme-like behaviour. This synthetic platform, in which supramolecular systems exhibit high activity stability, provides alternative strategy selectively hydrogenate nitroarenes using light as clean energy source.