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首页> 外文期刊>Crystal growth & design >Pyridineboronic Acids as Useful Building Blocks in Combination with Perchloroplatinate(II) and -(IV) Salts: 1D, 2D, and 3D Hydrogen-Bonded Networks Containing X-H···Cl_2Pt? (X = C, N~+), B(OH)2···Cl_2Pt~?, and B(OH)_2···(HO)_2B Synthons
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Pyridineboronic Acids as Useful Building Blocks in Combination with Perchloroplatinate(II) and -(IV) Salts: 1D, 2D, and 3D Hydrogen-Bonded Networks Containing X-H···Cl_2Pt? (X = C, N~+), B(OH)2···Cl_2Pt~?, and B(OH)_2···(HO)_2B Synthons

机译:吡啶硼酸是与全氯铂盐(II)和-(IV)盐结合使用的有用构建基块:包含X-H···Cl_2Pt?的1D,2D和3D氢键网络。 (X = C,N〜+),B(OH)2··Cl_2Pt〜?,和B(OH)_2···(HO)_2B合成子

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摘要

Five metal complexes have been prepared by reacting 3- and 4-pyridineboronic acid (3- and 4-pba) with potassium tetrachloroplatinate (K_2PtCl_4) and hexachloroplatinic(IV) acid hydrate (H2PtCl_6·aq): [4-pbaH]_2[PtCl_4], [3-pbaH]_2[PtCl_4], [4-pbaH][Pt(4-pba)Cl_3], cis-[Pt(4-pba)_2Cl_2]·H_2O, and cis-[PtIV(3-pba)_2C_l4]·2H_2O. All compounds have been characterized by single-crystal X-ray diffraction analysis, showing that the primary hydrogen bonding interactions of the resulting 1D, 2D, and 3D networks contain at least one of the following synthons: X-H···Cl_2Pt~? (X = C, N~+), B(OH)_2···Cl_2Pt~?, and B(OH)_2···(HO)_2B. The dimensions are enhanced further by secondary ~+N?H···ClPt, O?H···O, and O?H···ClPt hydrogen bonding interactions between donor and acceptor atoms located at the periphery of these synthons. Additional weak C?H···O, C?H···Cl, B···N, and π···π stacking interactions stabilize the crystal structures further.
机译:通过使3-和4-吡啶硼酸(3-和4-pba)与四氯铂酸钾(K_2PtCl_4)和六氯铂酸(IV)酸水合物(H2PtCl_6·aq)制备五种金属配合物:[4-pbaH] _2 [PtCl_4 ],[3-pbaH] _2 [PtCl_4],[4-pbaH] [Pt(4-pba)Cl_3],顺式[Pt(4-pba)_2Cl_2]·H_2O和顺式-[PtIV(3-pba) )_2C_l4]·2H_2O。所有化合物均已通过单晶X射线衍射分析表征,表明所得1D,2D和3D网络的主要氢键相互作用包含以下合成子中的至少一个:X-H···Cl_2Pt〜?。 (X = C,N〜+),B(OH)_2··Cl_2Pt〜α和B(OH)_2···(HO)_2B。通过位于这些合成子外围的供体和受体原子之间的次级〜+ N2H··ClPt,O2H··O和O2H··ClPt氢键相互作用进一步提高了尺寸。额外的弱C 3 H··O,C 2 H··Cl,B··N和π··π堆叠相互作用进一步稳定了晶体结构。

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