Zwitterionic Organometallates

Chauvin, Rémi

doi:10.1002/(sici)1099-0682(200004)2000:4<577::aid-ejic577>3.0.co;2-f

Cited by 99 publications

(82 citation statements)

References 115 publications

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“…13 C{ 1 H} NMR (CDCl 3 ) d 254.6 (l-CO); 228.3 (C a ); 213.7, 213.5 (CO); 210.5 (C c ); 140.3 (C ipso Xyl ); 134.5-128.8 (C arom ); 90. 7,89.8,86.4 (Cp); 72.5 (C b ); 51. 3,36.7,23.7,14.5 (Bu n ); 49.6 (NMe); 18.1, 17.8 (Me 2 C 6 H 3 ).…”

Section: Synthesis Of [Fementioning

confidence: 98%

“…It has been shown that bridging coordination largely contributes to the stabilization of the dipolar iminium thiolate/ selenoate ligands in these complexes [6]. Zwitterionic organometallic complexes, although relatively uncommon, represent a topic of great interest, in that they might provide new interesting properties [7]. For example, formally charge separated species might exhibit enhanced catalytic activity due to the absence of counterion effects [8].…”

Section: Introductionmentioning

confidence: 99%

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Zwitterionic diiron vinyliminium complexes: Alkylation, metalation and oxidative coupling at the S and Se functionalities

Busetto

Dionisio

Marchetti

et al. 2008

Journal of Organometallic Chemistry

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Section: Synthesis Of [Fementioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Zwitterionic diiron vinyliminium complexes: Alkylation, metalation and oxidative coupling at the S and Se functionalities

Busetto

Dionisio

Marchetti

et al. 2008

Journal of Organometallic Chemistry

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“…Moreover, we demonstrate how the zwitterionic species formed by HX elimination self-assemble to oligomeric structures via covalent M-O bonding (B, Fig. 1) [32].…”

Section: Ece-pincer Metal Complexes [Mx(ece-z)l N ] (Ece-z = [C 6 H 2mentioning

confidence: 99%

Self-assembly of para-OH functionalized ECE-metalated pincer complexes

Mehendale

Lutz

Spek

et al. 2008

Journal of Organometallic Chemistry

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a b s t r a c tVarious para-OH functionalized ECE-pincer metal complexes [MX(ECE-OH)L n ] (ECE-OH = [C 6 H 2 (CH 2 E) 2 -2,6-OH-4] À , E = NMe 2 , PPh 2 and SPh) were synthesized. The X-ray crystal structures of neutral [PdCl(SCS-OH)], [PdCl(NCN-OH)], and cationic [Pd(PCP-OH)(MeCN)](BF 4 ) are reported. The neutral halide complexes exhibit self-assembly to form polymeric chains via H-bonding involving the para-OH group as donors and the halide ligand on the metal as acceptors. Moreover, the halide ligand can be replaced by a monomeric aryloxy-O ligand leading to the formation of a covalently bonded dimer. The crystal structure of such a dimer derived from [PdI(NCN-OH)] is reported. Furthermore, these pincer-metal complexes were tethered through a carbamate linker to a siloxane functionality with the aim to be immobilized on a silica support. The crystal structure of a siloxane-functionalized [PtI(NCN-Z)] complex exemplifies how other H-bonding interactions not involving the metal-halide groupings can lead to polymeric networks as well.

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“…In an attempt to generate a palladium(0) species, in situ reductive pretreatment of ðS S ; S C Þ 2 -7 with DIBAL [20], did not improve the catalytic results. To the best of our knowledge, b-zwitterionic palladate(0) complexes of phosphonium ylide C-ligands are not known [21]. Nevertheless, a coordinatively stabilized zwitterionic palladate(0) complex of the phosphino-phosphonium ylide ligand 6 might be generated by reaction of ylide with the palladiun(0) precursor Pd(PPh 3 ) 4 .…”

Section: Preliminary Catalytic Resultsmentioning

confidence: 99%