2013
Ortho-(methylsulfanyl)phenylphosphonates and derivatives: Synthesis and applications as mono- or bidentate ligands for the preparation of platinum complexes
KOZELKA, Jiří, Matthieu HAMEL, Matthieu LECINQ a MIhaela GULEAZákladní údaje
Originální název
Ortho-(methylsulfanyl)phenylphosphonates and derivatives: Synthesis and applications as mono- or bidentate ligands for the preparation of platinum complexes
Autoři
KOZELKA, Jiří (250 Francie, garant, domácí), Matthieu HAMEL (250 Francie), Matthieu LECINQ (250 Francie) a MIhaela GULEA (250 Francie)
Vydání
Journal of Organometallic Chemistry, Lausanne, Elsevier Science, 2013, 0022-328X
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10610 Biophysics
Stát vydavatele
Švýcarsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.302
Kód RIV
RIV/00216224:14310/13:00070212
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000326112700030
Klíčová slova anglicky
Platinum complexes; Sigmatropic rearrangement; Bidentate ligands; Cis/trans isomerization
Změněno: 8. 4. 2014 15:00, Ing. Andrea Mikešková
Anotace
V originále
The preparation of six phenylphosphonates (and phosphonic acid derivatives) bearing a sulfur group in ortho position was accomplished via either a [1,3]- or a [1,4]-sigmatropic rearrangement. Their complexation with different platinum sources has been studied and the new platinum complexes obtained were characterized by NMR spectroscopy (1H, 13C, 31P and 195Pt). Three runs of experiments were performed. The first was the reaction of ligands 1 and 2 bearing one sulfide and a phosphonate diester functions with potassium tetrachloroplatinate. In the obtained complexes, two molecules of ligand chelate the metal only by the sulfur atom. We were able to observe by 195Pt and 31P NMR spectroscopy the trans to cis rearrangement of a dichloro-methyl-(o-phosphorylbenzyl)sulfide platinum(II) complex upon time, leading to two new species, which are diastereomers of the cis-complex. The second set of experiments involved ligands 1, 2 and 3 bearing one sulfide or sulfoxide and a phosphonate diester moieties, cisplatin and one equivalent of silver nitrate. In the resulting complexes the platinum is coordinated by the sulfur atom of one molecule of ligand. In the third run, the reaction between ligands 4, 5, and 6 bearing one sulfide or sulfoxide and one phosphonic acid or one phosphonic monoester group and the cisplatin diaqua form led to O,SePt chelates.