Tellurium-bridged manganese carbonyl clusters: Synthesis and structural transformations of [Te4Mn3(CO)10]-, [Te2Mn3(CO)9]2-, [Te2Mn3(CO)9]-, and [Te2Mn4(CO)12]2-

Minghuey Shieh*, Horng Sun Chen, Huey Yea Yang, Shu Fen Lin, Chuen Her Ueng

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

23 引文 斯高帕斯(Scopus)

摘要

The reactions of appropriate ratios of K2TeO3 and [Mn2(CO)10] in superheated methanol solutions lead to a series of novel cluster anions [Te4Mn3(CO)10]- (1), [Te2Mn3(CO)9]2- (2), [Te2Mn3(CO)9]- (3), and [Te2Mn4- (CO)12]2- (4). When cluster 1 is treated with [Mn2(CO)10]/KOH in methanol, paramagnetic cluster 2 is formed in moderate yield. Cluster 2 is oxidized by [Cu(MeCN)4]BF4 to give the closo-cluster [Te2Mn3(CO)9]- (3), while treatment of 2 with [Mn2(CO)10]/KOH affords the closo-cluster 4. IR spectroscopy showed that cluster 1 reacted with [Mn2(CO)10] to give cluster 4 via cluster 2. Clusters 1-4 were structurally characterized by spectroscopic methods or/and X-ray analyses. The core structure of 1 can be described as two [Mn(CO)3] groups doubly bridged by two Te2 fragments in a μ22 fashion. Both [Mn(CO)3] groups are further coordinated to one [Mn(CO)4] moiety. Cluster 2 is a 49 e- species with a square-pyramidal core geometry. While cluster 3 displays a trigonal-bipyramidal metal core, cluster 4 possesses an octahedral core geometry.

原文英語
頁(從 - 到)3152-3158
頁數7
期刊Chemistry - A European Journal
7
發行號14
DOIs
出版狀態已發佈 - 2001 七月 16

ASJC Scopus subject areas

  • 催化
  • 有機化學

指紋

深入研究「Tellurium-bridged manganese carbonyl clusters: Synthesis and structural transformations of [Te<sub>4</sub>Mn<sub>3</sub>(CO)<sub>10</sub>]<sup>-</sup>, [Te<sub>2</sub>Mn<sub>3</sub>(CO)<sub>9</sub>]<sup>2-</sup>, [Te<sub>2</sub>Mn<sub>3</sub>(CO)<sub>9</sub>]<sup>-</sup>, and [Te<sub>2</sub>Mn<sub>4</sub>(CO)<sub>12</sub>]<sup>2-</sup>」主題。共同形成了獨特的指紋。

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