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Cationic rhodium(I) complexes formed in the reactions of HRh(CO)L3 (L=PPh3, P(OPh)3) complexes with silver(I) salts.

Autorzy

Anna M. Trzeciak

Zofia Olejnik

Józef J. Ziółkowski

Tadeusz Lis

Rok wydania

2003

Czasopismo

Inorganica Chimica Acta

Numer woluminu

350

Strony

339-346

DOI

10.1016/S0020-1693(02)01551-7

Kolekcja

Naukowa

Język

Angielski

Typ publikacji

Artykuł

Streszczenie

The reactions of HRh(CO)L3 (L=PPh3, P(OPh)3) complexes with AgY (Y=BF4−, CF3SO3−, PF6−) lead to [Rh(CO)(PPh3)2(H2O)]Y and [Rh(CO)(P(OPh)3)3]Y compounds. The solvolysis of [Rh(CO)(PPh3)2(H2O)]PF6 in ethanol produced a crystalline trans-[Rh(CO)(PPh3)2(OPOF2)] complex containing distorted square-planar rhodium center. The different arrangement of OPOF2− ligands found in two crystallographically independent molecules is connected with the presence of intra- and intermolecular CH…O hydrogen bonds involving both oxygen atoms of each OPOF2− anion. The reaction of [Rh(CO)(P(OPh)3)3]Y (Y=BF4−, PF6−) in solution with CO leads to [Rh(CO)2(P(OPh)3)3]Y and with P(OPh)3 to [Rh(P(OPh)3)4]Y complexes. The [Rh(P(OPh)3)4]PF6 complex was also obtained as a final reaction product of HRh(P(OPh)3)4 with AgPF6.Rhodium complexes HRh(CO)L3 (L=PPh3, P(OPh)3) are oxidized by AgY salts (Y=BF4−, CF3SO3−, PF6−) to [HRh(CO)L3]Y complexes, which decompose to [Rh(CO)(PPh3)2(H2O)]Y and [Rh(CO)(P(OPh)3)3]Y species, respectively, with H2 evolution. The trans-[Rh(CO)(PPh3)2(OPOF2)] complex obtained by solvolysis of [Rh(CO)(PPh3)2(H2O)]PF6 in ethanol was structurally characterized. Complexes of [Rh(CO)(P(OPh)3)3]Y-type (Y=BF4−, PF6−) react with CO and P(OPh)3 forming [Rh(CO)2(P(OPh)3)3]Y and [Rh(P(OPh)3)4]Y species, respectively.

Słowa kluczowe

Hydridorhodium(I) complexes, Rhodium(II) complexes, Cationic Rh(I) complexes

Adres publiczny

https://doi.org/10.1016/S0020-1693(02)01551-7

Strona internetowa wydawcy

http://www.elsevier.com

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