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Geometry analysis and systematic synthesis of highly porous isoreticular frameworks with a unique topology.


ABSTRACT: Porous coordination polymers are well known for their easily tailored framework structures and corresponding properties. Although systematic modulations of pore sizes of binary prototypes have gained great success, simultaneous adjustment of both pore size and shape of ternary prototypes remains unexplored, owing to the difficulty in controlling the self-assembly of multiple molecular building blocks. Here we show that simple geometry analysis can be used to estimate the influence of the linker lengths and length ratios on the synthesis/construction difficulties and framework stabilities of a highly symmetric, ternary prototype composed of a typical trinuclear metal cluster and two types of bridging carboxylate ligands. As predicted, systematic syntheses with 5×5 ligand combinations produced 13 highly porous isoreticular frameworks, which show not only systematic adjustment of pore volumes (0.49-2.04 cm(3) g(-1)) and sizes (7.8-13.0 Å; 5.2-12.0 Å; 7.4-17.4 Å), but also anisotropic modulation of the pore shapes.

SUBMITTER: Zhang YB 

PROVIDER: S-EPMC3272567 | biostudies-literature | 2012 Jan

REPOSITORIES: biostudies-literature

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Geometry analysis and systematic synthesis of highly porous isoreticular frameworks with a unique topology.

Zhang Yue-Biao YB   Zhou Hao-Long HL   Lin Rui-Biao RB   Zhang Chi C   Lin Jian-Bin JB   Zhang Jie-Peng JP   Chen Xiao-Ming XM  

Nature communications 20120124


Porous coordination polymers are well known for their easily tailored framework structures and corresponding properties. Although systematic modulations of pore sizes of binary prototypes have gained great success, simultaneous adjustment of both pore size and shape of ternary prototypes remains unexplored, owing to the difficulty in controlling the self-assembly of multiple molecular building blocks. Here we show that simple geometry analysis can be used to estimate the influence of the linker  ...[more]

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