The role of anions in addressing the outcome of the reaction of tetramethylthiourea with cis-Pt(II)(phos)2 moieties (phos = PPh3 or 1/2 dppe), cyclometallation vs. hydrolysis to monothiocarbamato, and the crystal structure ot trans-bis(N-dimethylmonothiocarbamato)bis(triphenylphosphane)platinum(II)
Articolo
Data di Pubblicazione:
2006
Citazione:
The role of anions in addressing the outcome of the reaction of tetramethylthiourea with cis-Pt(II)(phos)2 moieties (phos = PPh3 or 1/2 dppe), cyclometallation vs. hydrolysis to monothiocarbamato, and the crystal structure ot trans-bis(N-dimethylmonothiocarbamato)bis(triphenylphosphane)platinum(II) / M. Alesi, S. Fantasia, M. Manassero, A. Pasini. - In: EUROPEAN JOURNAL OF INORGANIC CHEMISTRY. - ISSN 1434-1948. - 2006:7(2006 Apr 03), pp. 1429-1435. [10.1002/ejic.200500892]
Abstract:
The product of the reaction between tetramethylthiourea
(tmtu) and cis-PtII(phos)2 moieties (phos = PPh3, or ½ dppe)
depends on the anionic species present. With NO3
–, CF3CO2
–,
CF3SO3
– and BF4
–, the cyclometallate cationic complex
[Pt(phos)2(tmtu*-C,S)]+ is obtained (tmtu* is tmtu deprotonated
at one methyl group). The acetato and malonato complexes
are inactive towards such deprotonation, but, in the
presence of water, promote tmtu hydrolysis with formation of
N-dimethylmonothiocarbamato (mtc) complexes in which
mtc is S-coordinated. cis-[Pt(PPh3)2(mtc)2] isomerises slowly
to the trans isomer, whose crystal structure is reported.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Carboxylate ligands; Ligands reactivity; Phosphane ligands
Elenco autori:
M. Alesi, S. Fantasia, M. Manassero, A. Pasini
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