Control of clustering behavior in anionic cerium(iii) corrole complexes: from oligomers to monomers.

Control of clustering behavior in anionic cerium(iii) corrole complexes: from oligomers to monomers.
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DOI:
10.1039/c6dt03884k
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发表时间:
2016-11-22
期刊:
Dalton transactions (Cambridge, England : 2003)
影响因子:
--
通讯作者:
Anstey MR
Anstey MR
中科院分区:
其他
文献类型:
--
作者:
Armstrong KC;Hohloch S;Lohrey TD;Zarkesh RA;Arnold J;Anstey MR

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首次合成了阴离子封端的铈可咯配合物。已发现镧系元素咔咯单元的不寻常的聚集,并且聚集的程度可以通过选择封端配体来控制。具有通式[Cor-Ce(THF)-Cp-Na]n(Cor = 5,15-双(2,4,6-三甲基苯基)-10-(4-甲氧基苯基)-咔咯,THF =四氢呋喃)的聚合物结构1a使用环戊二烯钠(NaCp)形成,并且具有通式[Cor-Ce-Tp]2的二聚体结构2a在使用三(吡唑基)硼酸钾(KTp)时形成。反阳离子的包封导致单体结构1b和2b的分离,通式[AM(2.2.2.-穴醚)][Cor-Cp-X](AM = Na或K,X = Cp或Tp)。研究了配合物的结构和光谱性质。
The first synthesis of anion capped cerium corrole complexes is reported. Unusual clustering of the lanthanide corrole units has been found and the degree of aggregation can be controlled by the choice of the capping ligand. A polymeric structure 1a, with the general formula [Cor-Ce(THF)-Cp-Na]n (Cor = 5,15-bis(2,4,6-trimethylphenyl)-10-(4-methoxyphenyl)-corrole, THF = tetrahydrofuran), is formed using sodium cyclopentadienide (NaCp) and a dimeric structure 2a, with the general formula [Cor-Ce-Tp]2, is formed when potassium tris(pyrazolyl)borate (KTp) is used. Encapsulation of the counter-cation leads to the isolation of the monomeric structures 1b and 2b, with the generual formulas [AM(2.2.2.-Cryptand)][Cor-Cp-X] (AM = Na or K, X = Cp or Tp). The structural and spectroscopic properties of the complexes have been investigated.
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