Hexanuclear Pt complexes composed of two cyclic triplatinum units connected with 1,4-diphenylene and 1,1′-ferrocenylene spacer

Itazaki, Masumi; Kitami, Osamu; Tanabe, Makoto; Nishihara, Yasushi; Osakada, Kohtaro

doi:10.1016/j.jorganchem.2005.05.030

Cited by 14 publications

(13 citation statements)

References 9 publications

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“…300 322 SiH resonance at 4.75 ppm ( 1 J ) 183 Hz). 300 The most obvious starting point could be the metal itself, however; in this case, the problem would be finding a suitable reaction medium. This can be solved by a gas-phase reaction (formation of 3-70 from Fe (g) ) or in a matrix that includes metal atoms (1-2ab, 1-3abc, 1-5, and 1-7), but in one case reaction with a gold surface (formation of 1-80) has been reported.…”

Section: Types Of Ligands At the Metal And Substituents At Siliconmentioning

confidence: 99%

“… 318 X-ray structure not good quality 319 Related derivative, [Pt 3 (SiMe 2 fcSiMe 2 H)(PEt 3 ) 2 (μ-PPh 2 ) 3 ], was prepared similarly from [Pt 3 H(PEt 3 ) 3 (μ-PPh 2 ) 3 ] + 1,1′-bis(dimethylsilyl)ferrocene 320 Reaction probably occurs by oxidative addition of HSi followed by elimination of dihydrogen and a phosphine ligand …”

Section: Introductionmentioning

confidence: 99%

“… 319 Related derivative, [Pt 3 (SiMe 2 fcSiMe 2 H)(PEt 3 ) 2 (μ-PPh 2 ) 3 ], was prepared similarly from [Pt 3 H(PEt 3 ) 3 (μ-PPh 2 ) 3 ] + 1,1′-bis(dimethylsilyl)ferrocene 320 Reaction probably occurs by oxidative addition of HSi followed by elimination of dihydrogen and a phosphine ligand 321 Related derivative, [(Et 3 P) 2 (μ-PPh 2 ) 3 Pt 3 (SiMe 2 fcSiMe 2 )Pt 3 (PEt 3 ) 2 (μ-PPh 2 ) 3 ] (X-ray) …”

Section: Introductionmentioning

confidence: 99%

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Reactions of Hydrosilanes with Transition Metal Complexes and Characterization of the Products

2011

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Section: Types Of Ligands At the Metal And Substituents At Siliconmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Reactions of Hydrosilanes with Transition Metal Complexes and Characterization of the Products

2011

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“…For instance, the cyano complex [(C 6 F 5 ) 2 Pt(μ‐PPh 2 ) 2 Pt(CN) 2 ] 2– ( 97 ) acts a “metalloligand”, giving the corresponding hexa‐ or octanuclear complexes by reaction with cis ‐[Pt(C 6 F 5 ) 2 (thf) 2 ] or [(C 6 F 5 ) 2 Pt(μ‐PPh 2 ) 2 Pt(CH 3 CN) 2 ] ( 96 ), respectively 76. Other relevant examples are the hexanuclear complexes 133 and 134 composed of two cyclic triplatinum units connected with 1,4‐phenylene or 1,1′‐ferrocenylene spacers (Scheme ) 113…”

Section: Future Trendsmentioning

confidence: 99%

Bridging and Terminal (Phosphanido)platinum Complexes

Mastrorilli¹

2008

Eur J Inorg Chem

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The PR2– group (the phosphanido group, according to the modern IUPAC rules) possesses a strong nucleophilicity, a high bridging tendency and a remarkable flexibility. This review addresses the issue of (phosphanido)platinum complexes, subdividing them into terminal and bridging species. Terminal (phosphanido)platinum complexes are usually prepared by deprotonation of a coordinated secondary (or primary) phosphane on a cationic PtII complex, by an appropriate base. The terminally bonded phosphanide group shows no tendency to form multiple bonds with platinum: in all crystallographically characterised Pt complexes, the terminal phosphanido P atom is pyramidal. Due to the high nucleophilicity granted by the presence of the active lone pair on P, terminal (phosphanido)platinum complexes react with molecules such as O2 and S8, and they can be used for the synthesis of dimetallic compounds upon reaction with suitable metal fragments. The known PtI phosphanido‐bridged complexes are dinuclear, diamagnetic and endowed with a strong Pt–Pt bond. The μ‐PPh2 bridge in PtI dimers arises often by (thermal) activation of the P–C bond in coordinated PPh3 or dppm. PtI phosphanido‐bridged complexes are also prepared by reaction of (dichlorido)platinum complexes with reagents such as Na, NaOH, alcohols. For such complexes a multifaceted reactivity, including the substitution of a terminal ligand, the reaction with electrophiles such as H+ and its isolobal analogues, the insertion into the μ‐P–Pt bond, has been reported. Hydridophosphanido complexes are formed by oxidative addition of a P–H bond onto zero‐valent Pt complexes, by protonation of PtI dimers or by action of BH4– on halido species. Dehydrochlorination of secondary (and primary) phosphane complexes gives chlorido complexes which are mostly prepared in the anti‐[(PRR′2)(Cl)Pt(μ‐PR″2)]2 geometry. Chiral complexes are obtained when asymmetric phosphanido P atoms are present in the molecule. A rich coordination chemistry has been developed on organometallic phosphanido Pt complexes bearing the pentafluorophenyl group. In this framework, a great number of Pt complexes of various nuclearity have been crystallographically characterised and their reactivity towards oxidants studied. The class of polynuclear phosphanido Pt complexes is represented by triangulo species, in which the bridging phosphanide group is typically μ‐PPh2 or μ‐PtBu2, by linear complexes of various nuclearity and by bent species stemming from the presence of a triply bridging diphenylphosphanido ligand in the molecule. Applications of phosphanido Pt complexes in catalysis and materials chemistry are also discussed. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)

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“…The most common is the cyclic triangular array with three bridging phosphido ligands [14,[17][18][19][20][21][22][23][24][25][26], while complexes with linear [19,[27][28][29] or bent [7,[29][30][31] disposition of the three metal centres, with or without M-M bonds, are less common. These phosphido Pt 3 clusters are usually linked through bridging ligands of type l-PR 2 , and only rarely contain triply bridging (l 3 -PR 2 ) ligands connecting the platinum centres.…”

mentioning

confidence: 99%

Formation and characterization of a benzoquinolate triplatinum cluster containing a μ3-PPh2 bridging system and two Pt–Pt bonds

Díez

Forniés

García

et al. 2006

Inorganic Chemistry Communications

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Hexanuclear Pt complexes composed of two cyclic triplatinum units connected with 1,4-diphenylene and 1,1′-ferrocenylene spacer

Cited by 14 publications

References 9 publications

Reactions of Hydrosilanes with Transition Metal Complexes and Characterization of the Products

Reactions of Hydrosilanes with Transition Metal Complexes and Characterization of the Products

Bridging and Terminal (Phosphanido)platinum Complexes

Formation and characterization of a benzoquinolate triplatinum cluster containing a μ3-PPh2 bridging system and two Pt–Pt bonds

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