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Pseudohalogeno Metal Compounds. LXXV. Pentacarbonylrhenium and Triphenylphosphinegold Complexes of Pseudohalide Anions: (OC)5ReX, Ph3PAuX (x = ONC(CN)2, o-MeC6H4SO2C(CN)2, o-MeC6H4SO2NCN, Ph2(S)PNCN) The pseudohalides (X?) nitrosodicyanmethanide, o-tosyldicyanmethanide, o-tosylcyanamide and diphenylthiophosphinylcyanamide react with the Organometallic Lewis Acids (OC)5Re+ (as (OC)5ReFBF3) and Ph3PAu+ (as Ph3PAuNO3) to give the neutral title complexes (OC)5Re—X and Ph3PAu? X, respectively. X-ray diffraction shows that nitroso-dicyanmethanide is coordinated through the nitroso N-atom to the Re(CO)5 fragment. Cyanide-N-coordination is observed for the complexes with o-tosyldicyanmethanide and o-tosylcyanamide whereas diphenylthiophosphinylcyanamide is S-coordinated to the gold atom. Spectroscopic data (IR, NMR) of 1–6 are described. 相似文献
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Nitrosobenzene (NB) and nitroso-tetr-butane (NtB) were used to trap the photogenerated rhenium pentacarbonyl radical. Self trapped radicals and spin adducts were studied in detail by EPR spectroscopy. In methylene chloride, both nitroxide and anilino spin adducts can be observed with NtB at ?30°. In contrast, only the nitroxide spin adduct of nitrosobenzene was observed in either hexane, or methylene chloride solution. This solvent controlled spin adduct chemistry, can be explained in terms of the solute-solvent interaction. 相似文献
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Organometallic Lewis Acids,Part LIX[1] Pentacarbonylrhenium Complexes with Phosphorus Tricyanide and Dicyanophosphide
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The addition of Re(CO)5+ [as Re(CO)5FBF3] to P(CN)3 and to P(CN)2– affords the complexes [Re(CO)5]3P(CN)3(BF4)3 and Re(CO)5P(CN)2, respectively. The spectroscopic data indicate that Re(CO)5+ is coordinated to each of the three cyano groups of P(CN)3 to give {P[C≡N‐Re(CO)5]3}[BF4]3, whereas the pseudohalide P(CN)2– is bonded to the rhenium cation through the phosphorus atom. 相似文献
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