cis-Influence determination of ethylene and benzyl cyanide ligands in the complexes cis-[Pt(Me2SO)(C2H4)Cl2] and cis-[Pt(Me2SO)-(PhCH2CN)Cl2] on the basis of X-ray structure data. IR and 1H, 13C and 195Pt NMR characterization of the cis-[Pt(Me2SO)LCl2] series

Kukushkin, Vadim Yu.; Belsky, V. K.; Konovalov, V. E.; Kirakosyan, G. A.; Konovalov, L. V.; Moiseev, A. I.; Tkacbuk, Valentina M.

doi:10.1016/s0020-1693(00)85437-7

Cited by 38 publications

(20 citation statements)

References 29 publications

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“…The carboxylate group shows two bands, and intense asymmetric carboxylate stretching m(as, COO À ) and symmetric stretching m(s, COO À ) at 1636 and 1333 cm À1 , respectively [21]. In addition, a characteristic band at 440 cm À1 was observed, probably corresponding to the m(Pt-S) vibration [22][23][24].…”

Section: Spectral Characterizationmentioning

confidence: 99%

Relevance of the leaving group for antitumor activity of new platinum(II) compounds containing anthracene derivatives as a carrier ligand

Marqués-Gallego

Contaldi

Dulk

et al. 2009

Journal of Inorganic Biochemistry

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Section: Spectral Characterizationmentioning

confidence: 99%

Relevance of the leaving group for antitumor activity of new platinum(II) compounds containing anthracene derivatives as a carrier ligand

Marqués-Gallego

Contaldi

Dulk

et al. 2009

Journal of Inorganic Biochemistry

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“…The carbonyl stretching frequency was observed at 1670 cm -1 . Other strong band in the IR spectrum is seen at 1120 cm -1 and can be attributed to the coordinated dimethyl sulfoxide . Attempts to split the polymer by treating it with ligands such as pyridine or triphenylphosphine in benzene at reflux or in dimethyl sulfoxide at 100 °C for 5−6 h failed.…”

Section: Resultsmentioning

confidence: 99%

“…Other strong band in the IR spectrum is seen at 1120 cm -1 and can be attributed to the coordinated dimethyl sulfoxide. 10 Attempts to split the polymer by treating it with ligands such as pyridine or triphenylphosphine in benzene at reflux or in dimethyl sulfoxide at 100 °C for 5-6 h failed. However, the extensive refluxing of the material in methanol or ethanol results in a slow accumulation of complex 3b.…”

Section: Resultsmentioning

confidence: 99%

Access to Central Carbon Chirality through Cycloplatination of 1-(2-Pyridinylthio)propanone by cis-[PtCl₂(S-SOMe(p-tolyl))]. The Crystal Structure of (S_sS_c)-[Pt{py{SCHC(O)Me}-2}Cl(SOMe(p-tolyl))]

et al. 2002

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Cycloplatination of the prochiral sp 3 C-H bond of 1-(2-pyridinylthio)propanone (py{SCH 2 C-(O)Me}-2, 1a) by cis-[PtCl 2 (SOMe 2 )] in dry ethanol affords [Pt{py{SCHC(O)Me}-2}Cl(SOMe 2 )] (3a) in 77% isolated yield without any side product. The same reaction using the chiral complex cis-[PtCl 2 (S-SOMe(p-tolyl))] (the absolute configuration of sulfur is indicated for the coordinated ligand) leads to two cycloplatinated diastereoisomers, 4a (S s R c ) and 4b (S s S c ), in 12.9 and 33.7% yield, respectively (de 44.6%). Their absolute configuration was deduced from the analysis of the 1 H NMR spectra and confirmed by an X-ray structural investigation of 4b. Diastereomer 4b was shown to react with PPh 3 to give the enantiomer [Pt{py{SCHC-(O)Me}-2}Cl(PPh 3 )] with the central carbon chirality only. Rather surprisingly, attempted cycloplatination of py{SCH 2 C(O)Ph}-2 (1b) by cis-[PtCl 2 (SOMe 2 )] affords the cycloplatinated complex [Pt{py{SCHC(O)Ph}-2}Cl(SOMe 2 )] (3b) in a miserable yield.

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“…These derivatives crystallized in three crystal classes: triclinic (x5) < orthorhombic (x12) < monoclinic (x14). In ten cis-derivatives: PtCl 2 (dmso) (NL) with NL, MeCN 234,235 , EtCN 236 , PhCN 237 , cycloC 3 H 3 CN 238 , Bu t NH 2 239 , py 240 , Mepy 241 , thiazole 245 and cpa 243 In eleven cis-PtCl 2 (η 2 -NSL) derivatives, with heterobidentate N,S ligands: Mecys 244 , Etcys 245 , qutm 246 , aems 247 , mamsb 247 , mps 248 , DLmethionine 231,249 , metso 250 and Memethionine 251 , created a distorted square planar geometry about each Pt(II) atom (PtCl 2 NS). In [244][245][246][247] the chelating ligands form five-membered metallocycles with the mean N-Pt-S "bite" angles of 86.4º.…”

Section: Structures Of Yellow Cis-[pt(ηmentioning

confidence: 99%

THIO-LIGANDS in MONOMERIC Pt(II) COMPLEXES – STRUCTURAL ASPECTS

2017

AJCR

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This review includes over three hundred derivatives in which each Pt(II) atom is in a distorted square planar environment with inner coordination spheres of PtS4, PtS3X, PtS2X2, PtSX3, PtS2XY, PtSX2Y and PtSXYZ. There is a wide variety of mono-, bi-, ter-, and tetra-dentate ligands, all incorporating both homoand hetero-dentate varieties. The most common ligands are dimethylsulphoxide and triphenylphosphine. The chelating ligands create a wide variety of metallocyclic rings, where the effects of both steric and electronic factors are observed. Examples of cis-and trans-isomerism exists in these derivatives as well as distortion isomerism, which is much more common. Ligands exerting the trans-effect in these Pt(II) complexes are stronger in the order: OL, NL < Cl < Br < I < SL < H ~ AsL ~ PL ~ CN. Several relationships between the structural parameters were found and are discussed. The complexes crystallized in five crystal classes: hexagonal (0.4%) < tetragonal (1.5%) < orthorhombic (13.8%) < triclinic (23.7%) < monoclinic (60.7%).

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cis-Influence determination of ethylene and benzyl cyanide ligands in the complexes cis-[Pt(Me2SO)(C2H4)Cl2] and cis-[Pt(Me2SO)-(PhCH2CN)Cl2] on the basis of X-ray structure data. IR and 1H, 13C and 195Pt NMR characterization of the cis-[Pt(Me2SO)LCl2] series

Cited by 38 publications

References 29 publications

Relevance of the leaving group for antitumor activity of new platinum(II) compounds containing anthracene derivatives as a carrier ligand

Relevance of the leaving group for antitumor activity of new platinum(II) compounds containing anthracene derivatives as a carrier ligand

Access to Central Carbon Chirality through Cycloplatination of 1-(2-Pyridinylthio)propanone by cis-[PtCl₂(S-SOMe(p-tolyl))]. The Crystal Structure of (S_sS_c)-[Pt{py{SCHC(O)Me}-2}Cl(SOMe(p-tolyl))]

THIO-LIGANDS in MONOMERIC Pt(II) COMPLEXES – STRUCTURAL ASPECTS

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cis-Influence determination of ethylene and benzyl cyanide ligands in the complexes cis-[Pt(Me2SO)(C2H4)Cl2] and cis-[Pt(Me2SO)-(PhCH2CN)Cl2] on the basis of X-ray structure data. IR and 1H, 13C and 195Pt NMR characterization of the cis-[Pt(Me2SO)LCl2] series

Cited by 38 publications

References 29 publications

Relevance of the leaving group for antitumor activity of new platinum(II) compounds containing anthracene derivatives as a carrier ligand

Relevance of the leaving group for antitumor activity of new platinum(II) compounds containing anthracene derivatives as a carrier ligand

Access to Central Carbon Chirality through Cycloplatination of 1-(2-Pyridinylthio)propanone by cis-[PtCl2(S-SOMe(p-tolyl))]. The Crystal Structure of (SsSc)-[Pt{py{SCHC(O)Me}-2}Cl(SOMe(p-tolyl))]

THIO-LIGANDS in MONOMERIC Pt(II) COMPLEXES – STRUCTURAL ASPECTS

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Access to Central Carbon Chirality through Cycloplatination of 1-(2-Pyridinylthio)propanone by cis-[PtCl₂(S-SOMe(p-tolyl))]. The Crystal Structure of (S_sS_c)-[Pt{py{SCHC(O)Me}-2}Cl(SOMe(p-tolyl))]