Heterometallic Metal−Organic Frameworks Based on Tris(dipyrrinato) Coordination Complexes

A novel class of heterometallic metal−organic frameworks (MOFs)
has been synthesized and characterized. The MOFs rely on the
use of tris(dipyrrinato) coordination complexes as the bridging
structure and silver(I) ions as the linking unit. The building blocks
and resulting MOFs have been structurally characterized by using
single-crystal X-ray diffraction. The modular nature of this approach
is demonstrated by the use of both iron(III) and cobalt(III)
complexes. The MOFs have strong electronic absorption features
originating from the metal−dipyrrin chromophore and have continuous channels throughout the lattice that are occupied by ordered
and disordered solvent molecules.

本研究合成并表征了一类新型异金属有机框架（heterometallic metal−organic frameworks, MOFs）。该类MOFs以三(二吡咯啉)配位配合物作为桥联结构基元，以银(I)离子作为连接单元。研究通过单晶X射线衍射技术对其构筑基元与所得MOFs进行了结构表征。本合成策略的模块化特性可通过采用铁(III)与钴(III)两种配合物得以验证。此类MOFs展现出源自金属-二吡咯啉生色团的强电子吸收特征，其晶格整体贯穿有连续孔道，孔道内填充有序与无序的溶剂分子。