title: Experimental studies on the trans-influence of boryl ligands in square-planar platinum(II) complexes.
abstract: A series of platinum(II) boryl complexes of general formula trans-[(Cy(3)P)2Pt(Br)(BX2)], including the rare dibromoboryl species trans-[(Cy(3)P)2Pt(Br)(BBr2)], were synthesized by oxidative addition of the B-Br bond of a number of bromoboranes to [Pt(PCy3)2]. X-ray diffraction studies were performed on several such compounds. Comparison of the Pt--Br bond lengths allowed an empirical assessment of the trans-influence of different boryl ligands. A trans-influence scale was thus deduced and the results were compared with those previously computed for compounds of the type trans-[(Me(3)P)2Pt(Cl)(BX2)].
authors.affiliation: Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany. h.braunschweig@mail.uni-wuerzburg.de
authors.forename: Holger
authors.initials: H
authors.lastname: Braunschweig
authors.forename: Peter
authors.initials: P
authors.lastname: Brenner
authors.forename: Andreas
authors.initials: A
authors.lastname: Müller
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Radacki
authors.forename: Daniela
authors.initials: D
authors.lastname: Rais
authors.forename: Katharina
authors.initials: K
authors.lastname: Uttinger