On the reactions of bisdiolatotungsten(VI) phenoxides. Syntheses, characterizations, and molecular structures of trans-[WCl2(diol)(OAr)(2)]



: Lehtonen A, Sillanpaa R

Publisher: AMER CHEMICAL SOC

: 2001

Inorganic Chemistry

INORGANIC CHEMISTRY

: INORG CHEM

: 40

: 23

: 6047

: 6051

: 5

: 0020-1669

DOI: https://doi.org/10.1021/ic010583t


Coordinated phenoxide groups in [W(eg)(2)(mephe)(2)] (2a) and [W(eg)(2)(prphe)(2)] (2c) (eg = ethanediolate dianion; mephe = OC6H3Me2-2,6; prphe = OC6H3Pr2-2,6) undergo reaction, with Br-2, leading to substitution at the para position of the phenyl rings and formation of the complexes [W(eg)(2)(OC6H2R2-2,6-Br-4)(2)] (2b, R = Me; 2d, R = Pr-i). The reaction of complexes 2a-2d and [W(eg)(2)(buphe)(2)] (2e) (buphe = OC(6)H(3)tBu(2)-2,4) with HCl leads to the displacement of one bidentate diolato ligand from the complex unit and formation of the corresponding trans dichloro diolato bis(phenoxide) tungsten(VI) complex [WCl2(eg)(OAr)(2)] (3). The X-ray crystal structure determinations of these compounds confirmed that all complexes 3 have a similar gross structure in which the chloro ligands are arranged at trans positions.



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