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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Copper perchlorate and tetrafluoridoborate compounds with the ligand 1,4,5-triazanaphthalene. Gradual transformation of mononuclear Cu(ii) compounds via polynuclear mixed-valence Cu(ii)/Cu(i) species to dinuclear Cu(i); Syntheses, characterizations and X-ray structures
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Copper perchlorate and tetrafluoridoborate compounds with the ligand 1,4,5-triazanaphthalene. Gradual transformation of mononuclear Cu(ii) compounds via polynuclear mixed-valence Cu(ii)/Cu(i) species to dinuclear Cu(i); Syntheses, characterizations and X-ray structures

机译:高氯酸铜和四氟硼酸铜化合物与配体1,4,5-三氮杂萘。单核Cu(ii)化合物通过多核混合价Cu(ii)/ Cu(i)物质逐渐转变为双核Cu(i);合成,表征和X射线结构

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When the ligand 1,4,5-triazanaphthalene (abbreviated as tan) is reacted with Cu(ii) BF _4 ~- and ClO _4 ~- salts, a variety of mononuclear compounds has been found, all with the [Cu(tan) _4] unit and varying amounts of weakly coordinating axial ligands and lattice solvents. Reproducible compounds formed include two purple compounds, analyzing as [Cu(tan) _4](ClO _4) _2(CH _3OH) _2(H _2O) (1) and [Cu(tan) _4] (BF _4) _2(CH _3OH) _(1.5)(H _2O) (3), and two blue compounds, analyzing as [Cu(tan) _4](ClO _4) _2(H _2O) _2 (2) and [Cu(tan) _4] _2(BF _4) _2(H _2O) _2 (4). Upon standing at room temperature, red-coloured, mixed-valence dinuclear-based 3D coordination polymers are formed by conversion of the purple/blue products, of which [Cu _2(tan) _4] n(BF _4) _(3n) (5) and the isomorphic methanol-water adduct [Cu(tan) _4] n(BF _4) _(3n)(CH _3OH) _n(H _2O) _(5n) (5A) are presented in this paper. In addition a fully reduced dinuclear Cu(i) compound of formula [Cu _2(tan) _3(ClO _4) _2] (7) has been observed, and structurally characterized, as a rare three-blade propeller structure, with a Cu-Cu distance of 2.504 ?.
机译:当配体1,4,5-三氮杂萘(缩写为tan)与Cu(ii)BF_4〜-和ClO_4〜-盐反应时,发现了各种单核化合物,全部与[Cu(tan) _4]单位和数量不等的弱配位轴向配体和晶格溶剂。形成的可再现化合物包括两种紫色化合物,分析为[Cu(tan)_4](ClO _4)_2(CH _3OH)_2(H _2O)(1)和[Cu(tan)_4](BF _4)_2(CH _3OH) )_(1.5)(H _2O)(3)和两种蓝色化合物,分析为[Cu(tan)_4](ClO _4)_2(H _2O)_2(2)和[Cu(tan)_4] _2( BF _4)_2(H _2O)_2(4)。在室温下放置时,通过转换紫色/蓝色产物形成红色的,基于混合价双核双价3D配位聚合物,其中[Cu _2(tan)_4] n(BF _4)_(3n)( 5)和同构甲醇-水加合物[Cu(tan)_4] n(BF _4)_(3n)(CH _3OH)_n(H _2O)_(5n)(5A)呈现。此外,已观察到完全还原的式[Cu _2(tan)_3(ClO _4)_2](7)的双核Cu(i)化合物,并在结构上表征为稀有的三叶螺旋桨结构,具有Cu- Cu的距离为2.504Ω。

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