Hydrothermal Synthesis, Crystal Structure and Spectroscopic Investigations of [Y(C6NO2H5)3(H2O)2]n(1.5nZnCl4)•nH2O with Unprecedented Polycationic Chains

Abstract

Abstract A new heterometallic 4 f -3 d complex [Y(C 6 NO 2 H 5 ) 3 (H 2 O) 2 ] n (1.5 n ZnCl 4 ). n H 2 O( 1 ), was synthesized via a hydrothermal reaction and structurally characterized. Complex 1 crystallized in the monoclinic system with space group P 2 1 / c : a =0.94847(9) nm, b =2.0947(2) nm, c =1.6001(2) nm, β=104.467(2)°, V -3.0781(5) nm 3 , M r =823.04, D c =1.776 g/cm 3 , S =1.009, μ(Mo K α)=3.603 mm −1 , F (000)=1632, R =0.0787, and wR =0.2273. Complex 1 , with four formula units in a cell, was characteristic of a one-dimensional polycationic chain-like structure. Photolumincscent investigation showed that the title complex displayed a strong emission in the blue region, which was attributed to the intraligand π-π * transition of the nicotinic ligands. Optical absorption spectrum of complex 1 revealed the presence of a wide optical bandgap of 4.17 eV.