New Synthesis of [SFe3(CO)9]2- and Its Reactivity toward Electrophiles
详细信息 查看全文
- 作者：Jiann-Jang Cherng ; Yi-Chou Tsai ; Chuen-Her Ueng ; Gene-Hsiang Lee ; Shie-Ming Peng ; and Minghuey Shieh
- 刊名：Organometallics
- 出版年：1998
- 出版时间：January 19, 1998
- 年：1998
- 卷：17
- 期：2
- 页码：255 - 261
- 全文大小：199K
- 年卷期：v.17,no.2(January 19, 1998)
- ISSN：1520-6041
文摘
The reaction of Na2SO3 withFe(CO)5/KOH in methanol forms the tetrahedralcluster[SFe3(CO)9]2-in good yield. Acidification of[SFe3(CO)9]2-with H+ forms the monohydridocluster[SFe3(
-H)(CO)9]-(I) and the dihydrido clusterSFe3(-H)2(CO)9.Further methylationof [SFe3(CO)9]2-with MeSO3CF3 produces thesulfur-methylated cluster[MeSFe3(CO)9]-(II).When[SFe3(CO)9]2-is treated with Ru3(CO)12 in refluxing acetone,the octahedral cluster[SFe2Ru3(CO)14]2-(III) is obtained. Subsequent methylation ofIII with MeSO3CF3givesthe octahedral cluster[MeSFe2Ru3(CO)14]-(IV), in which the sulfur atom ispentacoordinatedto one methyl group and two Ru and two Fe atoms. ClustersI-IV have been fullystructurally characterized by spectroscopic methods and X-ray analysis.In this paper, thebasic sites of[SFe3(CO)9]2-are studied in terms of the differing electrophiles, and anovelpentacoordinate bonding mode of the sulfur atom is also found incluster IV.
-H)(CO)9]-(I) and the dihydrido clusterSFe3(-H)2(CO)9.Further methylationof [SFe3(CO)9]2-with MeSO3CF3 produces thesulfur-methylated cluster[MeSFe3(CO)9]-(II).When[SFe3(CO)9]2-is treated with Ru3(CO)12 in refluxing acetone,the octahedral cluster[SFe2Ru3(CO)14]2-(III) is obtained. Subsequent methylation ofIII with MeSO3CF3givesthe octahedral cluster[MeSFe2Ru3(CO)14]-(IV), in which the sulfur atom ispentacoordinatedto one methyl group and two Ru and two Fe atoms. ClustersI-IV have been fullystructurally characterized by spectroscopic methods and X-ray analysis.In this paper, thebasic sites of[SFe3(CO)9]2-are studied in terms of the differing electrophiles, and anovelpentacoordinate bonding mode of the sulfur atom is also found incluster IV.