Mixed fluoroamine complexes of chromium(III)Springer Science and Business Media LLC - Tập 10 - Trang 128-130 - 1985
Jaume Casabó, Andreu Solans, Carmen Diaz, Joan Ribas, Alexandre Seguí, Montserrat Corbella
Mixed difluoro(diamine)(diamme)chromium(III) complexes have been synthesized with ethylenediamine (en), 1,3 propanediamine(tn) and 1,2-cyclohexanediamine(chxn):trans-[CrF2(aa)(bb)]Br (aa=en, bb=tn; aa=tn, bb= chxn) andcis-[CrF2(aa)(bb)]Br (aa=en, bb=chxn). The corresponding fluoroaqua(diamine) (diamine)chromium(III) complexes have been prepared by acid hydrolysis as perchlorate or iodide salts. Al...... hiện toàn bộ
Homo- and heterodinuclear 2,2′-bipyrimidine-bridged complexesSpringer Science and Business Media LLC - Tập 24 - Trang 546-552 - 1999
Montserrat Barquín, María J. González Garmendia, Vìíctor Bellido
[M′(hfacac)2(bpym)] complexes, where M′ = CoII, NiII or ZnII, hfacac = hexafluoroacetylacetonate and bpym = 2,2′bipyrimidine; and [Cl2M(μbpym)M′(hfacac)2] complexes, where M = CoII, NiII MnII or ZnII M′ = NiII; M = NiII or ZnII and M′ = ZnII; M = NiII and M′ = CoII have been prepared and characterized by chemical analysis, conductance measurements, IR and electronic spectroscopies and magnetic sus...... hiện toàn bộ
Kinetics of aquation of trans-dichlorobis(N,N′-dimethylethylenediamine)cobalt(III) ion in water–methanol in water–propan-2-ol mediaSpringer Science and Business Media LLC - Tập 22 - Trang 14-18 - 1997
Gehan M. El-Subruiti, Salah S. Massoud
The complex trans-[Co(dmen)2Cl2]Cl (dmen=N,N′-dimethylethylenediamine) has been prepared and characterized by elemental analysis, u.v.-vis. and i.r. spectra. The kinetics of the primary aquation of trans-[Co(dmen)2Cl2] in H2O, H2O–MeOH and H2O–i-PrOH have been examined over a wide range of solvent compositions and temperatures (40–55°C). Plots of rate constants (log k) versus the reciprocal of the...... hiện toàn bộ
Nucleophilic ligand displacement in dichloro[2-(arylazo)heterocycle]palladium(II) complexes by benzimidazole – a kinetic and mechanistic studySpringer Science and Business Media LLC - Tập 26 - Trang 205-211 - 2001
Ramkrishna Roy, Debasis Das, Manas Banerjee, Chittaranjan Sinha, Ambikesh Mahapatra
The reactions of benzimidazole (Bimz) with dichloro{2-(arylazo)pyridine}palladium(II), [Pd(aap)Cl2
(3), aap = R′C6H4N= N-2-C5H4N; R′ = H(a), o-Me(b), m-Me(c), p-Me(d), p-Cl(e)] and dichloro{2-(arylazo)pyrimidine}palladium(II), [Pd(aapm)Cl2
(4), aapm = R′′C6H4N=N-2-C6H3N2; R′′ = H(a), o-Me(b), m-Me(c), p-Me(d), p-Cl(e)] were followed separately. The kinetics were examined under pseudo-first order c...... hiện toàn bộ
Reaction of Ru(PPh3)3Cl2 with arylazoimidazoles: spectral characterisation and redox studies of [bis-{N(1)-alkyl-2-(arylazo)imidazole}-bis-(triphenylphosphine)]-ruthenium(II) perchlorateSpringer Science and Business Media LLC - Tập 25 - Trang 333-337 - 2000
Sanjib Pal, Tarun Kumar Misra, Chittaranjan Sinha
Ru(PPh3)3Cl2 reacts with N(1)-alkyl-2-(arylazo)imidazoles, p-RC6H4N=NC3H2N2X, [RaaiX, R = H(a), Me(b), Cl(c); X = Me(1), Et(2), Bz(3)] under refluxing conditions in EtOH to give [Ru(RaaiX)2(PPh3)2](ClO4)2 · H2O complexes (4–6). RaaiX is a bidentate chelator (N, N′) with N(imidazole), N and N(azo), N′ donor centres. Three isomers are present in the mixture in which the pairs of PPh3, N and N′ occup...... hiện toàn bộ
A palladium–phosphine catalytic system as an active and recycable precatalyst for Suzuki coupling in waterSpringer Science and Business Media LLC - Tập 40 - Trang 657-663 - 2015
Seyyed Javad Sabounchei, Marjan Hosseinzadeh, Mohammad Panahimehr, Davood Nematollahi, Hamid Reza Khavasi, Sadegh Khazalpour
The Suzuki–Miyaura reaction of various aryl halides with aryl boronic acids using {[Ph2PCH2PPh2CH=C(O)(C10H7)]PdCl2} as a catalyst has been investigated. The X-ray crystal structure of the catalyst reveals a five-membered chelate ring formed by coordination of the ligand through the phosphine group and the ylidic carbon atom to the metal center. This palladacycle exhibited excellent activities and...... hiện toàn bộ