Platinum Dimers Research Articles

BIS-μ-[BIS(Diphenylphosphino)Methane]Dihalodiplatinum-( Pt-Pt) and its hydrido ‘A’-frame derivatives revisited

Definitive 1H, 31P and 195Pt NMR data are reported for the complexes [PtX 2(dppm)] (X = Cl, Br or I; dppm = Ph 2PCH 2PPh 2), [Pt 2X 2(μ-dppm) 2], [Pt 2X 2(μ-H)(μ-dppm) 2] +, [Pt 2H 2(μ-H)(μ-dppm) 2] +, [Pt 2Cl 2(μ-Y)(μ-dppm) 2] (Y = CH 2. S or SO 2), [Pt 2Me 2(μ-Cl)(μ-dppm) 2] + and [Pt 2Me 3(μ-dppm) 2] +. The complexes [Pt 2X 2(μ-H)(μ-dppm) 2] + (X = Br or I) are reported for the first time, and the evidence is presented that [Pt 2H 2Cl(μ-ddpm) 2] + has a ‘T’-frame structure (involving a donor-acceptor metal-metal bond) rather than an ‘A’-frame structure. Early preparative routes to [Pt 2X 2)μ-dppm) 2] (X = Cl, Br or I) were shown to give complexes contaminated with small amounts of [Pt 2X 2(μ-H)(μ-dppm) 2]X, and rapid intermolecular proton transfer between [Pt 2X 2(μ-dppm) 2] and [Pt 2X 2(μ-H)(μ-dppm) 2] + was observed: for X = Cl, Δ G ≠ is 44.1 kJ mol −1. The merits of 195Pt NMR spectroscopy for studying platinum dimers are discussed, and a correlation between 1 J(PtPt) and r(PtPt) was observed.

Correlations of platinum-195-phosphorus-31 coupling constants with platinum-ligand and platinum-platinum bond lengths in platinum(I) dimers and in related platinum(II) complexes

Correlations of platinum-195-phosphorus-31 coupling constants with platinum-ligand and platinum-platinum bond lengths in platinum(I) dimers and in related platinum(II) complexes

ChemInform Abstract: CRYSTAL STRUCTURE OF DIIODOTETRAKIS(μ‐PYRIMIDINE‐2‐THIONATO‐N1,S2)DIPLATINUM(III): A PLATINUM(III) DIMER OBTAINED FROM THE REACTION OF PYRIMIDINE‐2‐THIONE WITH THE TETRAIODOPLATINATE(II) ION

Chemischer InformationsdienstVolume 15, Issue 22 Physical Organic Chemistry ChemInform Abstract: CRYSTAL STRUCTURE OF DIIODOTETRAKIS(μ-PYRIMIDINE-2-THIONATO-N1,S2)DIPLATINUM(III): A PLATINUM(III) DIMER OBTAINED FROM THE REACTION OF PYRIMIDINE-2-THIONE WITH THE TETRAIODOPLATINATE(II) ION D. M. L. GOODGAME, D. M. L. GOODGAMESearch for more papers by this authorR. W. ROLLINS, R. W. ROLLINSSearch for more papers by this authorA. C. SKAPSKI, A. C. SKAPSKISearch for more papers by this author D. M. L. GOODGAME, D. M. L. GOODGAMESearch for more papers by this authorR. W. ROLLINS, R. W. ROLLINSSearch for more papers by this authorA. C. SKAPSKI, A. C. SKAPSKISearch for more papers by this author First published: May 29, 1984 https://doi.org/10.1002/chin.198422079AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume15, Issue22May 29, 1984 RelatedInformation

The preparation and crystal structure of cis and trans potassium tetrachlorodinitroplatinate(IV)

The complex cis-K 2PtCl 4(NO 2) 2 was prepared by reacting K 2Pt(NO 2) 4 with 50% H 2SO 4 at 100°C and passing the resulting solution through a column of anion-exchange resin in the chloride form. The product that resulted from the initial reaction with sulfuric acid was cis-K 2Pt(NO 2) 2(SO 4) 2 which is an intermediate in the formation of the platinum(III) dimer K 2[Pt 2(SO 4) 4(H 2O) 2]. Crystals of cis-K 2PtCl 4(NO 2) 2 were obtained by evaporation and crystallized in a unit cell with parameters a = 6.438(2) Å, b = 7.458(2) Å, c = 10.984(2) Å, α = 89.66(2)°, β = 99.08(2)°, γ = 92.06(3)°, V = 520 Å 3, Z = 2, space group = P 1 . The previously reported preparation of this cis isomer produced the trans isomer which crystallized in the orthorhombic space group Fddd with unit cell constants a = 15.356(3) Å, b = 18.431(4) Å, c = 7.361(2) Å, V = 2083 Å 3, Z = 8.

Crytal structure of di-iodotetrakis(μ-pyrimidine-2-thionato-N1,S2)diplatinum(III): a platinum(III) dimer obtained from the reaction of pyrimidine-2-thione with the PtI 42−ion

Cristallisation dans le groupe P2 1 /c avec a=15,874, b=9,729 et c=15,983 A, β=98,02°, Z=4. Affinement jusqu'a R=0,043. Le complexe est dimere avec quatre ponts pyrimidinethionates formant un arrangement cis-plan d'atomes S et N autour des atomes de platine

Reactions of acetylenes with noble-metal carbonyl halides. Part 7. Synthesis and chemical characterization of cationic and neutral tetrasubstituted cyclobutadiene complexes of platinum(II). X-Ray structure of dichloro(η4-1,2-dimethyl-3,4-diphenylcyclobutadiene)-(triphenylphosphine)platinum(II)

cis-[Pt(CO)2Cl2] reacts at 20 °C with 1-phenylpropyne, in non-polar solvents, to give ionic species of the type [Pt2(C4Me2Ph2)2Cl3][Pt(CO)Cl3](1) with the methyl groups of the η4-cyclobutadiene ring in a cis configuration. Analytical and spectroscopic data of complex (1) show that the cation is a dimeric platinum(II) complex with three bridging chlorine atoms; each platinum is also co-ordinated to a tetrasubstituted cyclobutadiene ring. Complex (1) is easily transformed into the corresponding neutral tetrasubstituted-cyclobutadiene derivative [Pt2(C4Me2Ph2)2Cl4](2). Complex (2) reacts with triphenylphosphine to give the monomeric derivative [Pt(C4Me2Ph2)(PPh3)Cl2](5a). Evidence for the formation of the isomer with trans methyl groups for reactions under different conditions is reported; organic by-products, obtained by dimerisation of acetylenes with CO insertion, and hexasubstituted benzene have been isolated. The crystal structure of complex (5a) has been solved by Patterson and Fourier methods from counter data and refined by diagonal least squares to a final conventional R of 0.046 for 4 358 independent observed reflections. Crystals of (5a) are monoclinic, space group P21/c, with unit-cell dimensions a= 10.900(4), b= 23.437(6), c= 13.289(4)A, β= 113.5(5)°, and Z= 4. The crystals contain discrete molecules in which the co-ordination around the Pt atom is distorted tetrahedral. Selected bond lengths (A) are: Pt–Cl(1) 2.425(3), Pt–Cl(2) 2.430(2), Pt–P 2.353(2). The cyclobutadiene ring is asymmetrically co-ordinated to platinum [Pt–C distances in the range 2.116(9)–2.214(8)A]; the C–C bond distances in the ring, which is planar, are equal to within the estimated standard deviations [av. 1.47(1)A].

Nuclear magnetic resonance investigations of configurational non-rigidity in dinuclear platinum(IV) complexes. Part 5. Intra-molecular rearrangements in the dinuclear platinum(IV) complexes of 1,3,5,7=tetrathiocane. X-Ray Crystal Structure of [(PtClMe3)2-(SCH2SCH2SCH2SCH2)

The complexes [(PtXMe3)2(bCH2SCH2SCH2SkH2)] (X = CI, Br, or I) have been prepared by direct reaction of 183,5,7-tetrathiocane with the appropriate halogenotrimethylplatinum(iv) tetramer, [ (PtXMe,),] (X = CI, Br, or I). The X-ray crystal diffraction structure of [(PtCIMe3)2(SCH2SCH2SCH2SCH2)] shows the dimeric platinum moiety to be 1,3-co-ordinated to the ligand which has a chair-boat conformation. Low-temperature H n.m.r. spectroscopy confirms such a structure to be retained in solution for all three complexes. Lineshape changes observed in variable-temperature 1 H n.m.r. investigations are consistent with the complexes undergoing metal-pivot and platinum-methyl intramolecular rearrangements. Alternative mechanisms are discussed for both processes. It is concluded that the former comprises a series of 90" 1,5-metal pivots, and the latter, 120" rotations of methyl groups on the commuting Pt atom. Full bandshape analyses have been undertaken for both motions. Evidence is presented in support of the two fluxions being different manifestations of one transition state rather than independent rearrangements.

Dimeric platinum complexes with trichlorostannato ligands. Relationship between PtSn bond lengths and 1J( 195Pt, 119Sn).

Dimeric platinum complexes with trichlorostannato ligands. Relationship between PtSn bond lengths and 1J( 195Pt, 119Sn).

Synthesis and structure of novel mononuclear and binuclear zerovalent platinum complexes involving coordination by tin centers to give heteropolymetallic arrays of three or five atoms. A unique bridging function for bivalent tin and a new class of platinum(0) dimers

Synthesis and structure of novel mononuclear and binuclear zerovalent platinum complexes involving coordination by tin centers to give heteropolymetallic arrays of three or five atoms. A unique bridging function for bivalent tin and a new class of platinum(0) dimers

ChemInform Abstract: CHEMISTRY OF PHOSPHIDO‐BRIDGED GROUP VIII COMPOUNDS. MOLECULAR STRUCTURES OF THE PLATINUM DIMERS (PTCL(PPH2)(PPH2H))2 AND (PT(PH2PCH2CH2PPH2)(PPH2))2CL2

Chemischer InformationsdienstVolume 13, Issue 29 Physical Organic Chemistry ChemInform Abstract: CHEMISTRY OF PHOSPHIDO-BRIDGED GROUP VIII COMPOUNDS. MOLECULAR STRUCTURES OF THE PLATINUM DIMERS (PTCL(PPH2)(PPH2H))2 AND (PT(PH2PCH2CH2PPH2)(PPH2))2CL2 A. J. CARTY, A. J. CARTYSearch for more papers by this authorF. HARTSTOCK, F. HARTSTOCKSearch for more papers by this authorN. J. TAYLOR, N. J. TAYLORSearch for more papers by this author A. J. CARTY, A. J. CARTYSearch for more papers by this authorF. HARTSTOCK, F. HARTSTOCKSearch for more papers by this authorN. J. TAYLOR, N. J. TAYLORSearch for more papers by this author First published: July 20, 1982 https://doi.org/10.1002/chin.198229057AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume13, Issue29July 20, 1982 RelatedInformation

Solvent-dependent reactions of carbon dioxide with a platinum(II) dihydride. Reversible formation of a platinum(II) formatohydride and a cationic platinum(II) dimer, [Pt2H3(PEt3)4][HCO2

Solvent-dependent reactions of carbon dioxide with a platinum(II) dihydride. Reversible formation of a platinum(II) formatohydride and a cationic platinum(II) dimer, [Pt2H3(PEt3)4][HCO2

Chemistry of phosphido-bridged Group VIII compounds. Molecular structures of the platinum dimers [PtCl(PPh2)(PPh2H)]2 and [Pt(Ph2PCH2CH2PPh2)(PPh2)]2Cl2

Chemistry of phosphido-bridged Group VIII compounds. Molecular structures of the platinum dimers [PtCl(PPh2)(PPh2H)]2 and [Pt(Ph2PCH2CH2PPh2)(PPh2)]2Cl2

Unusual 16-membered ring system in a dimeric platinum(II) glutarate complex: [Pt(NH 3) 2{O 2C(CH 2) 3CO 2}] 2·4H 2O

Unusual 16-membered ring system in a dimeric platinum(II) glutarate complex: [Pt(NH 3) 2{O 2C(CH 2) 3CO 2}] 2·4H 2O

Asymmetrical cleavage of halide-bridged platinum dimers

Asymmetrical cleavage of halide-bridged platinum dimers

A platinum(II) dimer with bridging 1-methylthyminato ligands in head-to-head arrangement

A platinum(II) dimer with bridging 1-methylthyminato ligands in head-to-head arrangement

Structures and circular dichroism of monomeric and novel dimeric platinum(II) complexes of the (S)-methionine S-oxides, including the x-ray crystal structure of bis[.mu.-[(2S,SS)-2-amino-4-(methylsulfinyl)butanoato(2-)-S,O,.mu.-N]]-diplatinum(II)

Structures and circular dichroism of monomeric and novel dimeric platinum(II) complexes of the (S)-methionine S-oxides, including the x-ray crystal structure of bis[.mu.-[(2S,SS)-2-amino-4-(methylsulfinyl)butanoato(2-)-S,O,.mu.-N]]-diplatinum(II)

Platinum(0)-platinum(0) dimers. Bonding relationships in a d10-d10 system

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPlatinum(0)-platinum(0) dimers. Bonding relationships in a d10-d10 systemAlain Dedieu and Roald HoffmannCite this: J. Am. Chem. Soc. 1978, 100, 7, 2074–2079Publication Date (Print):March 1, 1978Publication History Published online1 May 2002Published inissue 1 March 1978https://doi.org/10.1021/ja00475a017RIGHTS & PERMISSIONSArticle Views489Altmetric-Citations152LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (608 KB) Get e-Alerts Get e-Alerts

Cis dihydride diphosphine complexes of platium(II) and their dehydrogenation to form dimeric platinum(0) complexes. The structure of [Pt(tert-Bu)2P(CH2)3P(tert-Bu)2

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCis dihydride diphosphine complexes of platium(II) and their dehydrogenation to form dimeric platinum(0) complexes. The structure of [Pt(tert-Bu)2P(CH2)3P(tert-Bu)2]2T. Yoshida, T. Yamagata, T. H. Tulip, James A. Ibers, and Sei OtsukaCite this: J. Am. Chem. Soc. 1978, 100, 7, 2063–2073Publication Date (Print):March 1, 1978Publication History Published online1 May 2002Published inissue 1 March 1978https://doi.org/10.1021/ja00475a016RIGHTS & PERMISSIONSArticle Views410Altmetric-Citations85LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (1 MB) Get e-AlertsSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts

ChemInform Abstract: THE STRUCTURE OF DIMERIC PLATINUM(I) COMPLEXES WITH BIS(DIPHENYLPHOSPHINO)METHANE AS LIGAND

Chemischer InformationsdienstVolume 7, Issue 41 Organoelement Compounds ChemInform Abstract: THE STRUCTURE OF DIMERIC PLATINUM(I) COMPLEXES WITH BIS(DIPHENYLPHOSPHINO)METHANE AS LIGAND M. P. BROWN, M. P. BROWNSearch for more papers by this authorR. J. PUDDEPHATT, R. J. PUDDEPHATTSearch for more papers by this authorM. RASHIDI, M. RASHIDISearch for more papers by this author M. P. BROWN, M. P. BROWNSearch for more papers by this authorR. J. PUDDEPHATT, R. J. PUDDEPHATTSearch for more papers by this authorM. RASHIDI, M. RASHIDISearch for more papers by this author First published: October 12, 1976 https://doi.org/10.1002/chin.197641343AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume7, Issue41October 12, 1976 RelatedInformation

The structure of dimeric platinum(I) complexes with bis(diphenylphosphino)methane as ligand

The structure of dimeric platinum(I) complexes with bis(diphenylphosphino)methane as ligand