Structural studies of mononuclear yttrium and lutetium complexes bearing anthracenide and polyphenyl-substituted cyclopentadienyl ligands

IF 2.1 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Structural Chemistry Pub Date : 2024-02-28 DOI:10.1007/s11224-023-02264-3

Daniil A. Bardonov, Darina I. Nasyrova, Dmitrii M. Roitershtein, Konstantin A. Lyssenko, Mikhail E. Minyaev

引用次数: 0

Abstract

Crystal structures of mononuclear cyclopentadienyl-anthracenide complexes [(1,3-Ph₂C₅H₃)Lu(C₁₄H₁₀)(THF)₂]•THF (1a), [(1,2,4-Ph₃C₅H₂)Lu(C₁₄H₁₀)(THF)₂]•0.17hexane•1.53THF (2a), [(1,2,4-Ph₃C₅H₂)Lu(C₁₄H₁₀)(THF)₂]•3C₆D₆ (2b), [(1,2,4-Ph₃C₅H₂)Y(C₁₄H₁₀)(THF)₂] •0.23hexane•1.37THF (3a), and [(1,2,4-Ph₃C₅H₂)Lu(2,6-^tBu₂C₁₄H₈)(THF)₂]•0.5THF (4a) have been studied. Complexes exhibit a structural rigidity of the (η⁵-C₅)Ln(η²-C₁₄)(O)₂ crystallographic node. Electronic and steric effects are discussed. The cyclopentadienyl-anthracenide complexes are able to activate C = C bonds without a co-catalyst, using ethylene polymerization as an example.

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含蒽和多苯基取代环戊二烯配体的单核钇和镥配合物的结构研究

单核环戊二烯基蒽络合物[(1,3-Ph2C5H3)Lu(C14H10)(THF)2]-THF（1a）、[(1,2,4-Ph3C5H2)Lu(C14H10)(THF)2]-0.17己烷-1.53THF (2a)、[(1,2,4-Ph3C5H2)Lu(C14H10)(THF)2]-3C6D6 (2b)、[(1,2,4-Ph3C5H2)Y(C14H10)(THF)2] -0.23hexane-1.37THF (3a)和[(1,2,4-Ph3C5H2)Lu(2,6-tBu2C14H8)(THF)2]-0.5THF (4a)。络合物显示出 (η5-C5)Ln(η2-C14)(O)2 结晶节点的结构刚性。讨论了电子和立体效应。以乙烯聚合为例，环戊二烯蒽配合物能够在没有助催化剂的情况下激活 C = C 键。

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来源期刊

Structural Chemistry 化学-化学综合

CiteScore

3.80

自引率

11.80%

发文量

227

审稿时长

3.7 months

期刊介绍： Structural Chemistry is an international forum for the publication of peer-reviewed original research papers that cover the condensed and gaseous states of matter and involve numerous techniques for the determination of structure and energetics, their results, and the conclusions derived from these studies. The journal overcomes the unnatural separation in the current literature among the areas of structure determination, energetics, and applications, as well as builds a bridge to other chemical disciplines. Ist comprehensive coverage encompasses broad discussion of results, observation of relationships among various properties, and the description and application of structure and energy information in all domains of chemistry. We welcome the broadest range of accounts of research in structural chemistry involving the discussion of methodologies and structures,experimental, theoretical, and computational, and their combinations. We encourage discussions of structural information collected for their chemicaland biological significance.