Dalton Trans 2019 Jun 8;48(22):7589-7601. Epub 2019 May 8.
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Heilongjiang University, Harbin 150080, People's Republic of China.
Self-assembly of diverse Cd(ii) metal salts, four organic dicarboxylic acids, and two flexible bis(pyridyl) ligands leads to the formation of thirteen complexes, namely, [Cd(L1)(CHO)] (1), [Cd(L2)(CHO)]·nOH·8nHO (2), [Cd(L1)(CHO)] (3), [Cd(L1)(CHO)] (4), [Cd(L2)(CHO)(HO)]·nHO (5), [Cd(L1)(m-BDC)(HO)] (6), [Cd(L2)(m-BDC)(HO)] (7), [Cd(L1)(p-BDC)(HO)]·2nHO (8), [Cd(L2)(p-BDC)Cl] (9), [Cd(L2)(p-BDC)(HO)]·n(ClO)·nHO (10), [Cd(L2)(p-BDC)(SO)(HO)]·4nHO (11), [Cd(L2)(p-BDC)]·nHO (12) and [Cd(L2)(p-BDC)]·nMeOH (13) (L1 = N,N'-bis(pyridin-4-ylmethyl)propane-1,2-diamine, L2 = N,N'-bis(pyridin-3-ylmethyl)propane-1,2-diamine, m-BDC = m-benzene dicarboxylate dianion, p-BDC = p-benzene dicarboxylate dianion), which have been characterized by elemental analysis, IR, TG, PL, and powder and single-crystal X-ray diffraction. The influence of different Cd(ii) salts on the structure variations and properties has also been investigated. Complexes 1 and 3 present a (4,4) layer motif accomplished by the interconnection of adjacent Cd(ii) cations through L1 molecules and trans-conformational succinates or fumarates. Read More