Assembling molecular triangles into discrete and infinite architectures

作者：Inglis Ross; Katsenis Athanassios D; Collins Anna; White Fraser; Milios Constantinos J; Papaefstathiou Giannis S^*; Brechin Euan K

来源：CrystEngComm, 2010, 12(7): 2064-2072.

DOI：10.1039/c002761h

Having established that molecules with general formulae [(Mn6O2)-O-III(R-sao)(6)(O2CR)(2)(L)(4-6)] ([Mn-6]) and [(Mn3O)-O-III(R-sao)(3)(X)(L)(3)] ([Mn-3]) (saoH(2) = salicylaldoxime; R H, Me, Et etc; X = RCO2-, ClO4-; L = solvent), with the latter being the analogous "half'' molecules of the former, exhibit the phenomenon of single-molecule magnetism, we have exploited them as building blocks to construct supramolecular architectures by means of host-guest interactions and coordination driven self-assembly. A number of discrete and infinite architectures, namely [(Mn3O)-O-III(Ph-sao)(3)(4Cl-sbz)(3)(MeOH)(3)](2)(OH)(ClO4)center dot 2MeOH (1 center dot 2MeOH), [(Mn3O)-O-III(Ph-sao)(3)(4Me-sbz)(3)(EtOH)(3)](2)(OH)(NO3) (2), {[(Mn3O)-O-III(Et-sao)(3)(4,4'-bpy)(2)(MeOH)] ClO4 center dot 1.5MeOH center dot Et2O}(n) (3 center dot 1.5MeOH center dot Et2O), {[(Mn3O)-O-III(sao)(3)(4,4'-bpe)(1.5)]ClO(4 center dot)3MeOH}(n) (4 center dot 3MeOH) and [{(Mn3O)-O-III(Et-sao)(3)(O2CPh)(EtOH)}(2){4,4'-bpe}(2)] (5), based on the molecular triangle [Mn-3] and various pyridyl-type ligands (4Cl-sbz = 4-chlorostilbazole, 4Me-sbz 4-methylstilbazole, 4,4'-bpy = 4,4'-bipyridine and 4,4'-bpe = trans-1,2-bis(4-pyridyl)ethylene) were obtained and structurally and magnetically characterized.

• 出版日期2010