The self‐assembly process of 2,2′‐bipyridine‐4,4′,6,6′‐tetracarboxylic acid (H₄bptc) and Zn(II) centers has been implemented under hydrothermal condition, while surprisingly, due to the high reaction temperature, the H₄bptc ligand transformed into 2,2′‐bipyridine‐4,6,6′‐tricarboxylic (H₃bptc′) with an unexpected in situ ligand reaction (hydrothermal decarboxylation) during the synthetic process. And finally, a novel Zn(II) MOF {[Zn_1.5(bptc′)(H₂O)]⋅H₂O}_n (1) has been obtained, which is characterized by single‐crystal X‐ray diffraction, powder X‐ray diffraction (PXRD), thermogravimetric analyse (TGA), elemental analyse (EA) and infrared spectroscopy (IR). In MOF 1, the 1D [Zn1‐O_{6,6′‐carboxyl}‐Zn2]_n double chains are connected by the 4‐carboxyl of R‐ or S‐bptc′ ligands into a 3D double‐walled rod‐packing framework with three kinds of windows. In addition, the solid‐state fluorescent property of 1 was conducted at room temperature, and meanwhile, 1 showed high selectivity and sensitivity for MnO₄⁻ ion by fluorescent quenching effect.

中文翻译：

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基于温度诱导的原位配体反应的新型3D杆装微孔Zn（II）MOF的合成，结构和荧光性质

2,2'-联吡啶-4,4'，6,6'-四羧酸（H ₄ bptc）和Zn（II）中心的自组装过程已在水热条件下进行，但令人惊讶的是，由于高在合成温度下，H ₄ bptc配体转变为2,2'-联吡啶-4,6,6'-三羧酸（H ₃ bptc'），并且发生意外的原位配体反应（水热脱羧）。最后，一个新颖的Zn（II）MOF {[锌_1.5（BPTC'）（H ₂ O）]⋅H ₂ ö} _Ñ（1）已获得，其特征在于单晶X射线衍射，粉末X射线衍射（PXRD），热重分析（TGA），元素分析（EA）和红外光谱（IR）。在MOF 1中，一维[Zn1-O _6,6'-羧基-Zn2] _n双链通过R-或S- bptc'配体的4-羧基连接到3D双壁杆装填框架中，其中三个各种窗户。此外，固态荧光性质1，在室温下进行，同时，1显示出对高的MnO的选择性和灵敏度₄ ^-通过荧光淬灭效应离子。