Expedient Synthesis of a Metallostibine Os2(CO)8(µ-SbPh): An Unusual and Strong Two-Electron-Donor Ligand

Ying Zhou Li; Rakesh Ganguly; Weng Kee Leong

doi:10.1002/ejic.201700456

Expedient Synthesis of a Metallostibine Os₂(CO)₈(µ-SbPh): An Unusual and Strong Two-Electron-Donor Ligand

Ying Zhou Li, Rakesh Ganguly, Weng Kee Leong^*

^*Corresponding author for this work

Nanyang Technological University

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

A metallostibine, Os₂(CO)₈(µ-SbPh) (2), was generated readily and in high yield and purity from the Os₃(CO)₁₁(µ-SbPh)(Cl)₂ (1) cluster through elimination of the terminal Os(CO)₃(Cl)₂ Lewis acid fragment with activated γ-alumina. Compound 2 is air sensitive in solution but relatively stable as a solid. The Sb atom in 2 adopts a trigonal pyramidal geometry in both the solid and solution states, with an active lone pair of electrons. Experimental and computational studies show that 2 is a strong two-electron donor with a donor strength comparable to that of alkylphosphines.

Original language	English
Pages (from-to)	2541-2546
Number of pages	6
Journal	European Journal of Inorganic Chemistry
Volume	2017
Issue number	19
DOIs	https://doi.org/10.1002/ejic.201700456
Publication status	Published - May 18 2017
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

ASJC Scopus Subject Areas

Inorganic Chemistry

Keywords

Antimony
Donating ligands
Metallostibines
Osmium
Structure elucidation

Access to Document

10.1002/ejic.201700456

Cite this

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title = "Expedient Synthesis of a Metallostibine Os2(CO)8(µ-SbPh): An Unusual and Strong Two-Electron-Donor Ligand",

abstract = "A metallostibine, Os2(CO)8(µ-SbPh) (2), was generated readily and in high yield and purity from the Os3(CO)11(µ-SbPh)(Cl)2 (1) cluster through elimination of the terminal Os(CO)3(Cl)2 Lewis acid fragment with activated γ-alumina. Compound 2 is air sensitive in solution but relatively stable as a solid. The Sb atom in 2 adopts a trigonal pyramidal geometry in both the solid and solution states, with an active lone pair of electrons. Experimental and computational studies show that 2 is a strong two-electron donor with a donor strength comparable to that of alkylphosphines.",

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AU - Leong, Weng Kee

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AB - A metallostibine, Os2(CO)8(µ-SbPh) (2), was generated readily and in high yield and purity from the Os3(CO)11(µ-SbPh)(Cl)2 (1) cluster through elimination of the terminal Os(CO)3(Cl)2 Lewis acid fragment with activated γ-alumina. Compound 2 is air sensitive in solution but relatively stable as a solid. The Sb atom in 2 adopts a trigonal pyramidal geometry in both the solid and solution states, with an active lone pair of electrons. Experimental and computational studies show that 2 is a strong two-electron donor with a donor strength comparable to that of alkylphosphines.

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