Scholarlink

Abstract <p>In the course of prolonged interaction in the system consisting of [<sup>99</sup>Tc(hfa)(CO)<sub>4</sub>] (hfa is the anion of 1,1,1,5,5,5-hexafluoroacetylacetone), triphenylphosphine (PPh<sub>3</sub>) or pyridine (py), and CCl<sub>4</sub>, the hfa anion is gradually displaced by the chloride ion with the formation of the complexes <i>fac</i>- and <i>mer</i>-[<sup>99</sup>TcCl(CO)<sub>3</sub>(PPh<sub>3</sub>)<sub>2</sub>] and <i>fac</i>-[<sup>99</sup>TcCl(CO)<sub>3</sub>(py)<sub>2</sub>]. The crystal and molecular structures of the complexes were determined. The complex <i>fac</i>-[<sup>99</sup>TcCl(CO)<sub>3</sub>(PPh<sub>3</sub>)<sub>2</sub>] is the first structurally confirmed example of technetium(I) tricarbonyl bis(triphenylphosphine) complexes of facial structure.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Reaction of Technetium(I) Tricarbonyl Hexafluoroacetylacetonate Complexes with CCl4: Formation and Crystal Structure of [99TcCl(CO)3(PPh3)2] Stereoisomers and of fac-[99TcCl(CO)3(C5H5N)2]

  • 期刊论文

  • 发表日期：

    2025年6月1日

查看全文
  • G. V. Sidorenko,
  • V. V. Gurzhiy,
  • A. E. Miroslavov,
  • A. R. Kochergina,
  • M. Yu. Tyupina

摘要

Abstract

In the course of prolonged interaction in the system consisting of [99Tc(hfa)(CO)4] (hfa is the anion of 1,1,1,5,5,5-hexafluoroacetylacetone), triphenylphosphine (PPh3) or pyridine (py), and CCl4, the hfa anion is gradually displaced by the chloride ion with the formation of the complexes fac- and mer-[99TcCl(CO)3(PPh3)2] and fac-[99TcCl(CO)3(py)2]. The crystal and molecular structures of the complexes were determined. The complex fac-[99TcCl(CO)3(PPh3)2] is the first structurally confirmed example of technetium(I) tricarbonyl bis(triphenylphosphine) complexes of facial structure.