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A New Photoactive Ru(II)tris(2,2'-bipyridine) Templated Zn(II) benzene-1,4-dicarboxylate Metal Organic Framework: Structure and Photophysical Properties

Christi L Whittington, Lukasz Wojtas, Wen-Yang Gao, Shengqian Ma, Randy W Larsen

Dalton Trans. 2015 Mar 28;44(12):5331-7.

PMID: 25687116

Abstract:

It has now been demonstrated that Ru(ii)tris(2,2'-bipyridine) (RuBpy) can be utilized to template the formation of new metal organic framework (MOF) materials containing crystallographically resolved RuBpy clusters with unique photophysical properties. Two such materials, RWLC-1 and RWLC-2, have now been reported from our laboratory and are composed of RuBpy encapsulated in MOFs composed of Zn(ii) ions and 1,3,5-tris(4-carboxyphenyl)benzene ligands (C. L. Whittington, L. Wojtas and R. W. Larsen, Inorg. Chem., 2014, 53, 160-166). Here, a third RuBpy templated photoactive MOF is described (RWLC-3) that is derived from the reaction between Zn(ii) ions and 1,4-dicarboxybenzene in the presence of RuBpy. Single Crystal X-ray diffraction studies determined the position of RuBpy cations within the crystal lattice. The RWLC-3 structure is described as a 2-fold interpenetrated pillared honeycomb network (bnb) containing crystallographically resolved RuBpy clusters. The two bnb networks are weakly interconnected. The encapsulated RuBpy exhibits two emission decay lifetimes (τ-fast = 120 ns, τ-slow = 453 ns) and a bathochromic shift in the steady state emission spectrum relative to RuBpy in ethanol.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP50446441 1,3,5-Tris(4-carboxyphenyl)benzene 1,3,5-Tris(4-carboxyphenyl)benzene 50446-44-1 Price
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