A Study of Unsaturated Pyrazolate-Bridged Diruthenium Carbonyl Complexes

Content Provider	Semantic Scholar
Author	Song, Yi-Hwa Chi, Yun Chen, Yanjing Liu, Yayuan Ching, Wei-Li Carty, Arthur J. Peng, Shie-Ming Lee, Gene-Hsiang
Abstract	The reaction of Ru3(CO)12 with approximately 3 equiv of 3,5-di-tert-butylpyrazole, (dbpz)H, in hexane at 170 °C in a stainless steel autoclave afforded the unsaturated, pyrazolatebridged diruthenium complex [Ru2(CO)5(dbpz)2] (2). The spectroscopic and structural analysis indicated that this compound contains a vacant coordination site at one axial position trans to the Ru-Ru linkage. This compound reacted with CO at room temperature to give the saturated complex [Ru2(CO)6(dbpz)2] (1b); its structure is analogous to that of the previously determined complexes [Ru2(CO)6(pz)2], pz ) pyrazolate and 3,5-dimethyl pyrazolate, except that the equatorial CO ligands show a skew arrangement, an indication of steric constraints within the coordination sphere. Treatment of 2 with benzyl isocyanide or with pyridine in toluene leads to the formation of substitution products [Ru2(CO)4(L)(dbpz)2], L ) CNCH2Ph and pyridine, in which the incoming donor ligand occupies an equatorial position at the saturated Ru center. The structural significance of this pyrazolate-bridged diruthenium complex 2 is discussed.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://ntur.lib.ntu.edu.tw//bitstream/246246/168486/1/317.pdf
Language	English
Access Restriction	Open
Subject Keyword	Autoclave Benzyl Alcohol Carbonyl Cyanide p-Trifluoromethoxyphenylhydrazone Control theory DNA Sequence Rearrangement Electron Excretory function Fatty Acids, Unsaturated Isocyanides Ligands Linkage (software) Maxillary right first molar abutment Pyridines RU 28318 Saturated abdominal dressings:Num:Pt:Wound:Qn Source-to-source compiler Stainless Steel Structural analysis Thermodynamics Toluene Unstable Medical Device Problem n-hexane phenylazobenzyloxycarbonyl-prolyl-leucyl-glycyl-prolyl-arginine tert-Butyl Alcohol
Content Type	Text
Resource Type	Article