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A Zn(II) Complex with Large Channels based on 3'-Nitro-Biphenyl-3,5,4'-Tricarboxylic Acid: Synthesis, Crystal Structure, Fluorescent Sensing of ATP, ADP, GTP, and UTP in Aqueous Solution and Drug Delivery

Abstract

A new coordination complex, namely, [Zn7L2(HL)2(OH-)4(H2O)2]·2H2O (1) [H3L= 3'-nitro-biphenyl-3,5,4'-tricarboxylic acid] was synthesized by solvothermal reaction. Complex 1 has a 3D open framework with heptanuclear cluster [Zn7O2(OH)4] secondary building units (SBUs) and features an unexpected large porous structure with pore size of 16.5×19.5 Å2, which shows 37.0 % porosity as calculated by PLATON. Adenosine triphosphate disodium salt (ATP), adenosine-5'-diphosphate disodium salt (ADP), guanosine 5'-triphosphate (GTP), or uridine 5'-triphosphate (UTP) were discriminated from other phosphate anions using fluorescence spectral analysis by adjusting the excitation wavelength at 287, 287, 306, or 337 nm. Complex 1 showed fluorescent sensing of ATP, ADP, GTP, and UTP in aqueous solution. In addition, complex 1 also exhibited a remarkable capacity for the anticancer drug 5-fluorouracil (5-FU), with a loading content of 46.5 wt%, and presented a slow-controlled drug release.

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Publication details

The article was received on 08 Sep 2017, accepted on 11 Oct 2017 and first published on 11 Oct 2017


Article type: Paper
DOI: 10.1039/C7CE01618B
Citation: CrystEngComm, 2017, Accepted Manuscript
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    A Zn(II) Complex with Large Channels based on 3'-Nitro-Biphenyl-3,5,4'-Tricarboxylic Acid: Synthesis, Crystal Structure, Fluorescent Sensing of ATP, ADP, GTP, and UTP in Aqueous Solution and Drug Delivery

    D. zhang and X. li, CrystEngComm, 2017, Accepted Manuscript , DOI: 10.1039/C7CE01618B

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