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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Tuning of the para-position of pyridyl ligands impacts the electrical properties of a series of Cd(ii) ladder polymers
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Tuning of the para-position of pyridyl ligands impacts the electrical properties of a series of Cd(ii) ladder polymers

机译:吡啶基配体的调整对吡啶基配体的调节会影响一系列CD(II)梯形聚合物的电性能

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Herein, we report the synthesis, structural characterization and electrical conductivity of three new one-dimensional coordination polymers (1D CPs), [Cd(nip)(4-Clpy)(CH3OH)] (1), [Cd(nip)(4-Brpy)(CH3OH)] (2) and [Cd(nip)(4-Phpy)(H2O)]center dot DMF center dot 3H(2)O (3) (H(2)nip = 5-nitroisophthalic acid, 4-Clpy = 4-chloropyridine, 4-Brpy = 4-bromopyridine, 4-Phpy = 4-phenylpyridine and DMF = N,N-dimethylformamide). The conductivity of the compounds was successfully tuned via the modification of the para-position of the 4-Xpy (X = Cl, Br and Ph) ligands. The electrical analysis indicated that compound 3 has the highest conductivity (22.25 x 10(-4) S m(-1)) under illumination followed by 2 (19.38 x 10(-4) S m(-1)) and 1 (12.68 x 10(-4) S m(-1)). The optical characterization and density functional theory (DFT) computation also support the observed progression of conductivity in the materials. Here, the highest conductivity of compound 3 is attributed to the better pi MIDLINE HORIZONTAL ELLIPSIS pi stacking interactions among the 4-Phpy and nip ligands, and the consequently increased charge transport between adjacent chains.
机译:在此,我们报告了三种新的一维协调聚合物(1D CPS),[Cd(NIP)(4-CP)(CH 3 OH)](1),[CD(NIP)(4)的三种新的一维协调聚合物(1D CPS),结构表征和导电性-bry)(CH 3 OH)](2)和[CD(nip)(4-pPY)(H2O)]中心点DMF中心点3H(2)O(3)(H(2)辊隙= 5-硝基二苯二甲酸, 4-CLPY = 4-氯吡啶,4- BRPY = 4-溴吡啶,4- pPPY = 4-苯基吡啶和DMF = N,N-二甲基甲酰胺)。通过调节4-xpy(X = Cl,Br和pH)配体的调节成功调谐化合物的导电性。电气分析表明化合物3在照射下具有最高的导电性(22.25×10(-4)S m(-1)),然后是2(19.38×10(-4)S m(-1))和1(12.68 X 10(-4)S m(-1))。光学表征和密度泛函理论(DFT)计算还支持在材料中观察到的电导率的进展。这里,化合物3的最高导电率归因于4-PHPY和辊隙配体之间的更好的中线水平椭圆级叠层PI堆叠相互作用,因此相邻链之间的电荷传输增加。

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