Diverse architectures and luminescence properties of group 11 complexes containing pyrimidine-based phosphine, n-((diphenylphosphine)methyl)pyrimidin-2-amine

Abstract

In this article, the synthesis, structural studies, and luminescence properties of CuI, AgI, and AuI complexes of pyrimidine-based phosphine [C4H3N2-2-NH(CH2PPh2)] (1) are described. The reactions of 1 with CuX led to the isolation of one-dimensional (1D) chain, tetranuclear ladder, or cyclic derivatives. The structural features of these complexes are greatly influenced by the metal-to-ligand ratio, reaction conditions, and CuX (X = Cl, Br or I) employed. In the case of CuCl and CuBr, one-dimensional coordination polymers [{CuCl}{C4H3N2-2-NH(CH2PPh2)}]âž (2) and [{CuBr}{C4H3N2-2-NH(CH2PPh2)}]âž (3) were obtained, whereas CuI afforded tetracopper complex [{CuI}4{C4H3N2-2-NH(CH2PPh2)}2(NCCH3)2] (4) having Cu4 ladder structure supported by Pâ