Mn<sub>2</sub>(2,5-disulfhydrylbenzene-1,4-dicarboxylate):
A Microporous Metal–Organic Framework with Infinite (−Mn–S−)<sub>∞</sub> Chains and High Intrinsic Charge Mobility
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Abstract
The reaction of MnCl<sub>2</sub> with
2,5-disulfhydrylbenzene-1,4-dicarboxylic
acid (H<sub>4</sub>DSBDC), in which the phenol groups in 2,5-dihydroxybenzene-1,4-dicarboxylic
acid (H<sub>4</sub>DOBDC) have been replaced by thiophenol units,
led to the isolation of Mn<sub>2</sub>(DSBDC), a thiolated analogue
of the M<sub>2</sub>(DOBDC) series of metal–organic frameworks
(MOFs). The sulfur atoms participate in infinite one-dimensional Mn–S
chains, and Mn<sub>2</sub>(DSBDC) shows a high surface area and high
charge mobility similar to that found in some of the most common organic
semiconductors. The synthetic approach to Mn<sub>2</sub>(DSBDC) and
its excellent electronic properties provide a blueprint for a potentially
rich area of exploration in microporous conductive MOFs with low-dimensional
charge transport pathways