原位获得的具有发色团N-（（吡啶-4-基）亚甲基）苯-1,4-二胺的双核和聚合Zn（II）和Cd（II）配位化合物：制备，结构和光谱研究,Inorganica Chimica Acta

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原位获得的具有发色团N-（（吡啶-4-基）亚甲基）苯-1,4-二胺的双核和聚合Zn（II）和Cd（II）配位化合物：制备，结构和光谱研究
Inorganica Chimica Acta Pub Date : 2019-06-01 , DOI: 10.1016/j.ica.2019.03.034
Vasile Lozovan , Victor Ch. Kravtsov , Eduard B. Coropceanu , Petre Rotaru , Anatolii V. Siminel , Marina S. Fonari

摘要四种配位化合物，包括离散的双核配合物[Zn（H2O）4（bda4Py）] 2（SO4）2（1），两种同构的一维配位聚合物{[Zn（NO3）2（bda4Py）2] ·2H2O} n（2）和{[Cd（NO3）2（bda4Py）2]·2H2O} n（3）和一种二维配位聚合物{[Cd（bda4Py）2（dpa）2]·2H2O}获得n（4）[其中bda4Py = N-（（吡啶-4-基）亚甲基）苯-1,4-二胺，H2dpa =二苯甲酸，作为具有两个羧基的潜在阴离子竞争性配体]作为下式的产物在反应条件下，配体N1，N4-双（吡啶-4-基亚甲基）-苯-1,4-二胺（bda4bPy）发生部分水解。单晶X射线数据表明，N-（（吡啶-4-基）亚甲基）苯-1,4-二胺通过吡啶基和氨基的氮原子充当两个金属中心之间的双齿连接体。结晶固体1-4的额外稳定化是通过氢键提供的。还可以通过直接合成获得N-（（吡啶-4-基）亚甲基）苯-1,4-二胺（bda4Py），并通过光谱（FTIR）表征了固态和溶液中的两个配体（bda4bPy和bda4Py）。，UV-vis，NMR）方法。还记录了报告化合物的发光研究。

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Binuclear and polymeric Zn(II) and Cd(II) coordination compounds with chromophore N-((pyridin-4-yl)methylene)benzene-1,4-diamine obtained in situ: preparation, structural and spectroscopic study

Abstract Four coordination compounds, that include the discrete binuclear complex [Zn(H2O)4(bda4Py)]2(SO4)2 (1), two isomorphous one-dimensional coordination polymers, {[Zn(NO3)2(bda4Py)2]·2H2O}n (2) and {[Cd(NO3)2(bda4Py)2]·2H2O}n (3), and one two-dimensional coordination polymer {[Cd(bda4Py)2(dpa)2]·2H2O}n (4) [where bda4Py = N-((pyridin-4-yl)methylene)benzene-1,4-diamine, H2dpa = diphenic acid, as a potential anionic competitor ligand having two carboxylic groups] were obtained as the products of partial hydrolysis of the ligand N1,N4-bis(pyridin-4-ylmethylene)-benzene-1,4-diamine (bda4bPy) in the reaction conditions. Single crystal X-ray data reveal that N-((pyridin-4-yl)methylene)benzene-1,4-diamine acts as a bidentate linker between two metal centers through nitrogen atoms of pyridino- and amino-groups. The additional stabilization of the crystalline solids 1–4 is provided via hydrogen bonds. N-((pyridin-4-yl)methylene)benzene-1,4-diamine (bda4Py) was also obtained by direct synthesis, and two ligands (bda4bPy and bda4Py) were characterized in the solid state and in solution by spectroscopic (FTIR, UV–vis, NMR) methods. Luminescence studies for the reported compounds are also documented.

更新日期：2019-06-01

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