Encapsulation by a Chromium(III)-Containing Bicyclic Ligand Cage. Synthesis, Structures, and Physical Properties of Heterometal Complexes CrIIIMCrIII [M = (H+)2, Li(I), Mg(II), Cu(II), Ni(II), Ni(IV), Co(III), Fe(II), Fe(III), Mn(II)]
Encapsulation by a Chromium(III)-Containing Bicyclic Ligand Cage. Synthesis, Structures, and Physical Properties of Heterometal Complexes CrIIIMCrIII [M = (H+)2, Li(I), Mg(II), Cu(II), Ni(II), Ni(IV), Co(III), Fe(II), Fe(III), Mn(II)]
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DOI：
10.1021/ic971101
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发表时间：
1998-02
影响因子：
4.6
通讯作者：
A. Burdinski;A. Birkelbach;A. T. Weyhermüller;B. U. Flörke;B. Haupt;C. Lengen;C. Trautwein;A. E
中科院分区：
文献类型：
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作者：
A. Burdinski;A. Birkelbach;A. T. Weyhermüller;B. U. Flörke;B. Haupt;C. Lengen;C. Trautwein;A. E
含有[三(二甲基乙肟基)-金属酸盐(II)]4-阴离子作为桥配体的线性三核络合物的合成，通式为[LCrIII{μ-(dmg)3M}CrIIIL]1+/2+/3+/4+，为高氯酸盐，其中M = (H+)2 (1和2)，不存在(3)、(H+)4 (4)、Li(I) (5)， Mg(II) (6)、Cu(II) (7)、Ni(II) (8)、Ni(IV) (9)、Co(III) (10)、Fe(II) (11)、Fe(III) (12) 和 Mn(II) (13) 是通过 LCr 单元与原位制备的 M(dmg)3n- 离子的逐步反应获得的，其中 L 代表1,4,7-三甲基-1,4,7-三氮杂环壬烷和 dmg2- 是二甲基乙肟二价阴离子。笼形螯合物 1−13 已根据元素分析、质谱、红外、紫外可见、穆斯堡尔和 EPR 光谱以及变温 (2−295 K) 磁化率测量进行了表征。它们与扭曲八面体环境 CrN3O3 中的末端铬（III）离子呈准同构结构，中心金属离子 M 为六配位，大多为三棱柱形，以 MN6 为核心。水晶圣...
Synthesis of linear trinuclear complexes containing the [tris(dimethylglyoximato)-metalate(II)]4- anion as bridging ligand of general formula [LCrIII{μ-(dmg)3M}CrIIIL]1+/2+/3+/4+ as perchlorate salts, where M = (H+)2 (1 and 2), absent (3), (H+)4 (4), Li(I) (5), Mg(II) (6), Cu(II) (7), Ni(II) (8), Ni(IV) (9), Co(III) (10), Fe(II) (11), Fe(III) (12) and Mn(II) (13), has been achieved by stepwise reactions of the LCr unit with in situ prepared M(dmg)3n- ions, where L represents 1,4,7-trimethyl-1,4,7-triazacyclononane and dmg2- is the dimethylglyoximato dianion. The clathrochelate complexes 1−13 have been characterized on the basis of elemental analysis, mass spectrometry, IR, UV−vis, Mossbauer, and EPR spectroscopies, and variable-temperature (2−295 K) magnetic susceptibility measurements. They are quasi-isostructural with the terminal chromium(III) ions in a distorted octahedral environment, CrN3O3, and the central metal ions M are six-coordinate, mostly trigonal prismatic, with the MN6 core. The crystal st...