Amine‐Responsive Adaptable Nanospaces: Fluorescent Porous Coordination Polymer for Molecular Recognition

• DOI: 10.1002/anie.201405619
• Publication Date: 2014-09-11T20:00:18Z
• Authors: Ritesh Haldar; Ryotaro Matsuda; Susumu Kitagawa; Subi J. George; Tapas Kumar Maji
• Keywords: Linker; Molecular Recognition; Coordination polymer

Flexible and dynamic porous coordination polymers (PCPs) with well-defined nanospaces composed of chromophoric organic linkers provide a scaffold for encapsulation versatile guest molecules through noncovalent interactions. PCPs thus potential platform molecular recognition. Herein, we report flexible 3D supramolecular framework {[Zn(ndc)(o-phen)]⋅DMF}n (o-phen = 1,10-phenanthroline, ndc 2,6-napthalenedicarboxylate) confined that can accommodate different electron-donating aromatic amine guests selective turn-on emission signaling. This system serves as recognition an emission-readout process. Such unprecedented tunable amines is attributed to its emissive charge-transfer (CT) complexation o-phen linkers. In certain cases this CT further amplified by energy transfer from the linker unit ndc, evidenced single-crystal X-ray structural characterization.