Thiolate coordination in binuclear oxomolybdenum(V) complexes. The x-ray crystal structures of the alkylammonium salts of [Mo2O2(OCH3)(SCH2CH2CH2S)3]- and [Mo2O2(SCH2CO2)4]2-

Lidun Ma, Shuncheng Liu, Huizhe Zhu, Jon Zubieta

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

Reaction of [n-Bu4N]2[Mo2O7] with propane-1,3-dithiol in methanol yields the triply-bridged binuclear complex [n-Bu4N][Mo2O3(OCH3)(SCH2CH2CH2S)3] (1). Complex 1 exhibits the confacial bioctahedral geometry characteristic of this class of complexes. In contrast, the reaction of [n-Bu4N]4[Mo8O26] with 2-mercaptoacetic acid and triethylamine in methanol results in the isolation of a complex [Et3NH]2[Mo2O2(SCH2CO2)4] (2), representing the first example of a new class of binuclear molybdenum(V) species. The structure is characterized by a 'trans-planar' [Mo2O2S2(thiolate)]4+ core and an unusually long Mo ⋯ Mo distance of 3.078(1) Å. Crystal data. Complex 1: triclinic space group P1, a = 9.310(2), b = 11.328(2), c = 19.954(3) Å, α = 74.93(1), β = 78.19(1), γ = 81.53(1)°, V = 1979.2(10) Å3, Z = 2, Dcalc, = 1.369 g cm3-; structure solution and refinement based on 5292 reflections, R = 0.0570. Complex 2: monoclinic space group P21/n, a = 10.861(4), b = 13.559(4), c = 11.011(4) Å, β = 104.14(2)°, V = 1572.1(11) Å3, Z = 2, Dcalc, = 1.664 g cm-3; 2133 reflections, R = 0.0560.

Original languageEnglish (US)
Pages (from-to)669-675
Number of pages7
JournalPolyhedron
Volume8
Issue number5
DOIs
StatePublished - 1989
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Thiolate coordination in binuclear oxomolybdenum(V) complexes. The x-ray crystal structures of the alkylammonium salts of [Mo<sub>2</sub>O<sub>2</sub>(OCH<sub>3</sub>)(SCH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>S)<sub>3</sub>]<sup>-</sup> and [Mo<sub>2</sub>O<sub>2</sub>(SCH<sub>2</sub>CO<sub>2</sub>)<sub>4</sub>]<sup>2-</sup>'. Together they form a unique fingerprint.

  • Cite this