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Preparation of Hydride Complexes of Ruthenium with Bidentate Phosphite Ligands by Jorge Bravo; Jesús Castro; Soledad García-Fontán; Ma Carmen Rodríguez-Martínez; Gabriele Albertin; Stefano Antoniutti; Alessandro Manera is a Chemistry article available to read on EtoBox.

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Hydride complex RuH 2 (PFFP) 2 (1) [PFFP = (CF 3 CH 2 O) 2 PN(CH 3 )N(CH 3 )P(OCH 2 CF 3 ) 2 ] was prepared by allowing the compound RuCl 4 (bpy) AE H 2 O (bpy = 1,2-bipyridine) to react first with the phosphite PFFP and then with NaBH 4 . Chloro-complex RuCl 2 (PFFP) 2 (2) was also prepared, either by reacting RuCl 4 (bpy) AE H 2 O with PFFP and zinc dust or by substituting triphenylphosphine with PFFP in the precursor complex RuCl 2 (PPh 3 ) 3 . Hydride derivative RuH 2 (POOP) 2 (3) (POOP = Ph 2 POCH 2 CH 2 OPPh 2 ) was prepared by reacting compound RuCl 3 (AsPh 3 ) 2 (CH 3 OH) first with the phosphite POOP and then with NaBH 4 . Depending on experimental conditions, treatment of carbonylated solutions of RuCl 3 AE 3H 2 O with POOP yields either the cis-or trans-RuCl 2 (CO)(PHPh 2 )(POOP) (4) derivative. Reaction of both cis-and trans-4 with LiAlH 4 in thf affords dihydride complex RuH 2 (CO)(PHPh 2 )(POOP) (5). Chloro-complex alltrans-RuCl 2 (CO) 2 (PPh 2 OMe) 2 (6) was obtained by reacting carbonylated solutions of RuCl 3 AE 3H 2 O in methanol with POOP. Treatment of chloro-complex 6 with NaBH 4 in ethanol yielded hydride derivative all-trans-RuH 2 (CO) 2 (PPh 2 OMe) 2 (7). The

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Author

Jorge Bravo; Jesús Castro; Soledad García-Fontán; Ma Carmen Rodríguez-Martínez; Gabriele Albertin; Stefano Antoniutti; Alessandro Manera

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-328X)

Published

2007

Language

EN

Field

Chemistry (Physical Sciences)