Title: Preparation, characterization, and structural studies of new ruthenium(II) and ruthenium(III) complexes incorporating pyrazole ligands

Journal Article · · Polyhedron
 [1];  [2];  [2]
  1. Univ. of Utah, Salt Lake City, UT (United States); OSTI
  2. Univ. of Utah, Salt Lake City, UT (United States)

Multimetallic complexes containing disparate metals have been established to have practical utilities. We previously reported a strategy for preparing such species by using combinations of neutral pyrazole (Hpyz, C3N2H4) and anionic pyrazolyl ligands (pyz, C3N2H3–), and herein are reported several new complexes that should be capable of incorporating a second metal center. Two of the complexes, [Ru(1,5-cod)(Hpyz)3Cl][BPh4] and Ru(1,5-cod)(Hpyz)2(pyz)2 (cod = cyclooctadiene), were prepared from [Ru(cod)Cl2]2, while [Ru(tmeda)(Hpyz)2Cl2][BF4] (tmeda = tetramethylethylenediamine) was prepared from the neutral Ru(II) complex Ru(tmeda)(Hpyz)2Cl2 via one electron oxidation by the ferricinium ion. The first two complexes, one cationic and the other uncharged, involve Ru(II), while the tmeda complex involves Ru(III). Finally, all three species have been structurally characterized.

Research Organization:
Univ. of Kentucky, Lexington, KY (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE); USDOE Office of Fossil Energy and Carbon Management (FECM)
Grant/Contract Number:
FC26-05NT42456
OSTI ID:
1977587
Journal Information:
Polyhedron, Journal Name: Polyhedron Journal Issue: C Vol. 209; ISSN 0277-5387
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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