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Title: Amine-Responsive Adaptable Nanospaces: Fluorescent Porous Coordination Polymer for Molecular Recognition
Authors: Haldar, Ritesh
Matsuda, Ryotaro
Kitagawa, Susumu
George, Subi Jacob
Maji, Tapas Kumar
Keywords: Chemistry
Charge Transfer
Energy Transfer
Molecular Recognition
Supramolecular Encapsulation
X-Ray Diffraction
Metal-Organic Frameworks
Selective Co2 Capture
Microporous Metal
Issue Date: 2014
Publisher: Wiley-V C H Verlag Gmbh
Citation: Haldar, R; Matsuda, R; Kitagawa, S; George, SJ; Maji, TK, Amine-Responsive Adaptable Nanospaces: Fluorescent Porous Coordination Polymer for Molecular Recognition. Angewandte Chemie-International Edition 2014, 53 (44) 11772-11777,
Angewandte Chemie-International Edition
Abstract: Flexible and dynamic porous coordination polymers (PCPs) with well-defined nanospaces composed of chromophoric organic linkers provide a scaffold for encapsulation of versatile guest molecules through noncovalent interactions. PCPs thus provide a potential platform for molecular recognition. Herein, we report a flexible 3D supramolecular framework {[Zn(ndc)(o-phen)]center dot DMF}(n) (o-phen= 1,10-phenanthroline, ndc=2,6-napthalenedicarboxylate) with confined nanospaces that can accommodate different electron-donating aromatic amine guests with selective turn-on emission signaling. This system serves as a molecular recognition platform through an emission-readout process. Such unprecedented tunable emission with different amines is attributed to its emissive charge-transfer (CT) complexation with o-phen linkers. In certain cases this CT emission is further amplified by energy transfer from the chromophoric linker unit ndc, as evidenced by single-crystal X-ray structural characterization.
Description: Restricted Access
ISSN: 1433-7851
Appears in Collections:Research Articles (Tapas Kumar Maji)
Research Papers (Subi Jacob George)

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