SPANphos: trans-spanning diphosphines as cis chelating ligands!
作者:Cristina Jiménez-Rodríguez、Francesc X. Roca、Carles Bo、Jordi Benet-Buchholz、Eduardo C. Escudero-Adán、Zoraida Freixa、Piet W. N. M. van Leeuwen
DOI:10.1039/b513870c
日期:——
Several SPANphos ligands based on a spirobichroman backbone, introduced as a putative trans ligand, form compounds of the type [Rh(nbd)(SPANphos)]BF(4) () in which both norbornadiene and SPANphos act as cis chelating ligands. The cyclooctadiene rhodium chloride derivatives form bimetallic complexes. Crystal structures for several of these compounds and free ligands are reported. Semiemperical AM1 and