Synthesis and coordinating ability of an anionic cobaltabisdicarbollide ligand geometrically analogous to BINAP

Chemistry : a European Journal
Isabel RojoReijo Sillanpää

Abstract

The anionic chelating ligand [1,1'-(PPh2)2-3,3'-Co(1,2-C2B9H10)2]- has been synthesized from [3,3'-Co(1,2-C2B9H11)2]- in very good yield in a one-pot process with an easy work-up procedure. The coordinating ability of this ligand has been studied with Group 11 metal ions (Ag, Au) and with transition-metal ions (Pd, Rh). The two dicarbollide halves of the [1,1'-(PPh2)2-3,3'-Co(1,2-C2B9H10)2]- ligand can swing about one axis in a manner analogous to the constituent parts of BINAP and ferrocenyl phosphine derivatives. All these ligands function as hinges, with the most important property in relation to the coordination requirements of the metal being the PP distance. [1,1'-(PPh2)2-3,3'-Co(1,2-C2B9H10)2]-, BINAP, ferrocenyl phosphine derivatives, and other hinge ligands present a range of different PP separations, and consequently different coordination spheres and dispositions around metal cations. To account for these differences, the equation Dphi2 = D02 + 4 R2cos2(90-phi/2) has been developed. It relates the PP distance (Dphi) in a complex with the minimum PP distance (D0) that is characteristic of the hinge-type ligand.

References

Oct 10, 2002·Chemical Reviews·Qing-Hua FanAlbert S C Chan
Jun 17, 2002·Angewandte Chemie·William S Knowles
Jun 17, 2002·Angewandte Chemie·Ryoji Noyori

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Citations

May 18, 2016·Chemical Society Reviews·R NúñezC Viñas
Dec 14, 2017·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Igor B Sivaev
Dec 1, 2011·Chemistry, an Asian Journal·Emilio José Juárez-PérezRosario Núñez
Feb 16, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·David EllisAlan J Welch
May 23, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Bohumír GrünerZdeňka Padělková
Jan 31, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Jan NekvindaBohumír Grüner
Sep 11, 2012·Chemistry : a European Journal·David OlidFrancesc Teixidor
Sep 23, 2008·Inorganic Chemistry·Pau FarràsIvana Cisarova
Apr 2, 2010·ACS Applied Materials & Interfaces·Bruno FabreM Graça H Vicente
Jun 19, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Emilio José Juárez-PérezRosario Núñez
Oct 7, 2010·Inorganic Chemistry·Rosario NúñezClara Viñas
Sep 13, 2011·Journal of the American Chemical Society·Pau FarràsClara Viñas

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