Synthesis and characterization of 18-and 20-membered hexaaza macrocycles containing pyridine manganese(II) complex nanoparticles dispersed within nanoreactors of zeolite-Y

摘要

Manganese(II) complexes of [18]py(2)N(4): 3,6,14,17,23,24- hexaazatricyclo[17.3.1.1(8.12)]tetracosa-1(23),2, 6,8(24),9,11,13,17,19,21-decane; [20]py(2)N(4): 3,7,15,19,25.26-hexaazatricyclo[19.3.1.1(9,13)]hexacosa-1(25),2,7,9(26), 10,12,14,19,21,23-decaene; Bzo(2)[18]py(2)N(4): 2,10,18,25,31,32-hexaazapentacyclo[25.3.1.1.(12.16).0(4.9).0(19.24)]dotr iaconta 1(31),2,4(9),5,7,10,12(32),13,15,17,19,21.23,25,29-hexadecane and Bzo(2)[18]py(2)N(4): 2,10,16,24,30,32-hexaazapentacyclo[23.3.1.1(4.8).1(.1.1.5)](18.22)otriac onta-1(29),2,4.6,8(32),9, 11,13,15(31),16,18(30),19,21,23,25,27-hexadecane have been encapsulated in the nanopores of zeolite-Y by the template condensation reaction. Mn(II) complexes with macrocyclic ligand were entrapped in the nanocavity of zeolite-Y by a two-step process in the liquid phase: (i) the adsorption of [bis(diamine)manganese(II)]; [Mn(diamine)(2)](2+)@NaY: in the supercages of the zeolite, and (ii) in situ condensation of the manganese(II) precursor complex with 2,6-diacetylpyridine. The new complex nanoparticles entrapped in the nanoreactor of zeolite-Y have been characterized by FT-IR, diffuse reflectance (DRS), X-ray photoelectron (XPS), thermal analysis, UV-Vis spectroscopic techniques, X-ray diffraction (XRD) and elemental analysis as well as by nitrogen adsorption.