Pre-programmed self-assembly of polynuclear clusters.
作者： Takuya Shiga , Graham N. Newton , Hiroki Oshio
DOI: 10.1039/C8DT00822A
关键词:
摘要: This perspective reviews our recent efforts towards the self-assembly of polynuclear clusters with ditopic and tritopic multidentate ligands HL1 (2-phenyl-4,5-bis{6-(3,5-dimethylpyrazol-1-yl)pyrid-2-yl}-1H-imidazole) H2L2 (2,6-bis-[5-(2-pyridinyl)-1H-pyrazole-3-yl]pyridine), both which are planar rigid molecules. was found to be an excellent support for tetranuclear [Fe4] complexes, [FeII4(L1)4](BF4)4 ([FeII4]) [FeIII2FeII2(L1)4](BF4)6 ([FeIII2FeII2]). The homovalent system exhibit multistep spin crossover (SCO), while mixed-valence [FeIII2FeII2] complex shows wavelength-dependent tuneable light-induced excited state trapping (LIESST). For H2L2, a variety complexes were obtained through complexation different transition metal ions, allowing isolation rings, grids, helix structures. rigidity ligand, difference in its coordination sites, affinity ions dictates behaviour. In this paper, we summarise these ligand pre-programmed self-assembled their diverse physical properties.
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