The reaction of [(arene)RuCl2]2 (arene /C6H6, p -Me /C6H4 / i Pr, C6Me6) with p -thiocresol, 2-mercaptoethanol and p mercaptophenol in refluxing ethanol gives the tris-thiolato complexes [(arene)2Ru2(SR)3] (R /p -C6H4 /Me, CH2CH2OH, p C6H4OH) which can be isolated as the chloride salts. The remarkable selectivity of (arene)ruthenium units for SH versus OH functions reflects the affinity of ruth...

An azobenzene bridge was introduced into the lower (or smaller) rim of p-tert-butylcalix[8]arene to form 1,5-singly bridged calix[8]arene derivatives, respectively. Bridged calix[8]arene of conformationally rigid wereisolated. The stability of the two structures of bridged calix[8]arenes have been compared.The study of organicstructure to form nanoporous structures is a well known in chemistry ...

New cationic diruthenium complexes of the type [(arene)(2)Ru(2)(SPh)(3)](+), arene being C(6)H(6), p-(i)PrC(6)H(4)Me, C(6)Me(6), C(6)H(5)R, where R = (CH(2))(n)OC(O)C(6)H(4)-p-O(CH(2))(6)CH(3) or (CH(2))(n)OC(O)CH=CHC(6)H(4)-p-OCH(3) and n = 2 or 4, are obtained from the reaction of the corresponding precursor [(arene)RuCl(2)](2) and thiophenol and isolated as their chloride salts. The complexe...

A proximity effect in arene ^-complex formation from the reaction system of an aryl G r i g n a r d reagent and anhydrous chromic chloride was investigated. The yields of arene ^-complexes and any accompanying reaction products were compared by the systematic variation of the aryl G r i g n a r d reagent employed. Phenyl G r i g n a r d gave the best yield of jr-complex followed by the benzyl, ...

η 6 -Arene(iodido-/bromido-aluminato)lanthanoid(III) complexes, [Ln(η -C H 5 Me)(AlI 4 ) 3 ] [ Ln = La ( 1 ), Ce 2 Nd (Gd) ); C Me toluene], -1,3,5)(AlI [Ln Pr 7 8 Sm 9 Gd 10 -1,3,5 mesitylene], and Me)(AlBr 11 12 13 )] were prepared by reactions of aluminium triiodide or tribromide with the corresponding lanthanoid metals 1,2-diiodoethane 1,2-dibromoethane in an arene (toluene mesitylene) solu...

Five 8-(4-R-phenyl)-1-naphthol derivatives were prepared by PdCl(2)-catalysed electrophilic aromatic substitution. The pK(a)' values for these 1,8-disubstituted arene naphthols have been measured in acetonitrile/water (R = NO(2), 8.42; R = Cl, 8.52; R = H, 8.56; R = Me 8.68; and R = OMe, 8.71) and indicate a correlation with the electronic nature of the arene substituent, as determined through ...

Organometallic ruthenium(II) arene complexes containing the PTA ligand ([Ru(η(6)-arene)Cl(2)(PTA)], PTA = 1,3,5-triaza-7-phosphatricyclo-[3.3.1.1]decane, termed RAPTA) show pharmacologically relevant anti-tumour properties in vitro. Two new enantiomeric pairs of RAPTA compounds, containing the chiral arene (R)- or (S)-2-phenyl-N-(1-phenylethylene)acetamide and either dichlorido or oxalato ligan...

spectropholornetrie technique is used to evaluate binding of the vanadium(1u) ion to a water solublecaruc[4] arene molecule in aqueous solution. on the basis of the calculated value formation constant at25rc.we found that the eomplexation of this metal on is very favored towards 25, 26, 27, 2stetrahydroxy-5, 11, 17, 23-tetnmulphonalic acid-calix[0]arenegaussian 03 package.

A series of water soluble complexes of general formula [(η-arene)Ru {(C5H4N)2CNRi}Cl]PF6 have been prepared by the reaction of [{(η-arene)RuCl2}2] with appropriate 2,2 ́-dipyridyl-N-alkylimine ligands (dpNRi) in the presence of NH4PF6 (where; R = Me or Et; arene = p-cymene, C6Me6, C6H6). The 2,2 ́-dipyridyl-N-alkylimine ligands are prepared by reaction of 2,2 ́-dipyridyl ketone with the correspond...

Herein we report the successful synthesis and isolation of tiara[6]arene, a constitutional isomer calix[6]arene consisting six phenol units linked by para-substituted methylene bridges, from an isomeric mixture asymmetrically substituted pillar[6]arene intermediates. Similar to its pentameric analogue, tiara[6]arene displays high conformational freedom in solution rich polymorphism solid state....