The synthesis, characterization, and reactivity of an unusual, amphoteric (tetrahydroborato)ruthenium hydride complex of a chelating triphosphine, Ru(H)(.eta.2-BH4)(ttp)
The synthesis, characterization, and reactivity of an unusual, amphoteric (tetrahydroborato)ruthenium hydride complex of a chelating triphosphine, Ru(H)(.eta.2-BH4)(ttp)
Synthesis and characterization of an unsymmetrically bonded tetrahydroborato ruthenium hydride complex
作者:Terry J. Mazanec、John B. Letts、Devon W. Meek
DOI:10.1039/c39820000356
日期:——
The complex RuH(η2-BH4)(ttp)[ttp = PhP(CH2CH2CH2PPh2)2], obtained by treatment of [RuCl2(ttp)]x with excess of sodium tetrahydroborate in refluxing tetrahydrofuran, shows discrete 1H n.m.r. signals for the Ru–H protons, each of the two Ru–H–B bridging protons, and the two terminal B–H protons at ambient temperature; however, the static BH4– group undergoes proton scrambling at higher temperatures in