Single hydrogen-boron bridged species: Tris(methyldiphenylphosphine) complexes of silver(I) and copper(I) containing tetrahydroborate and (ethoxycarbonyl)trihydroborate

Article abstract of DOI:10.1021/ic50205a003

The complexes (tetrahydroborato)tris(methyldiphenylphosphine)copper(I), (tetrahydroborato)tris(methyldiphenylphosphine)silver(I), ((ethoxycarbonyl)trihydroborato)tris(methyldiphenylphosphine)copper(I), and ((ethoxycarbonyl)-(trihydroborato)tris(methyldiphenylpnosphine)silver(I) have been synthesized and characterized. IR data and analysis support the presence of a hydrogen singly bridged to the metal in the solid species. In solution, conductivity, molecular weight, and NMR data indicate the existence of equilibrium between singly and doubly bridged species. Factors influencing the formation of a singly bridged vs. a doubly bridged species are discussed.