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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 complexes
Springer 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 media
Springer 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
Solvent and pressure effects on the kinetics of reaction of manganese pentacarbonyl bromide with 2,2′-bipyridyl and on the charge-transfer spectrum of MnBr(bipy)(CO)3
Springer Science and Business Media LLC - Tập 13 - Trang 126-130 - 1988
Razak bin Ali, John Burgess, Pilar Guardado
Rate laws, rate constants, and activation volumes are reported for reaction of MnBr(CO)5 with 2,2′-bipyridyl and with 1, 10-phenanthroline in methanol. The activation volume of +22cm3 mol−1 is consistent with a predominantlyD mechanism (CO loss) in this medium, but in 50% aqueous methanol both the kinetic pattern and activation volumes in the region of −20 cm3 mol−1 for the MnBr(CO)5 + bipy reacti...... hiện toàn bộ
Rhodium(III) as a homogeneous catalyst for the oxidative decolorization of ethyl orange with aqueous acidic chloramine-T: a spectrophotometric, kinetic and mechanistic study
Springer Science and Business Media LLC - Tập 38 - Trang 183-190 - 2012
Adalagere Somashekar Manjunatha, Puttaswamy
The kinetics and mechanism of sodium N-chloro-p-toluenesulfonamide oxidative decolorization of ethyl orange (EO) in aqueous perchloric acid have been studied at 303 K in the presence of rhodium(III) chloride as catalyst. The reaction exhibits first-order dependence on [EO]o and a fractional-order dependence on [CAT]o, [H+] and [RhIII]. The dielectric effect is positive. The stoichiometry of the re...... hiện toàn bộ
Nucleophilic ligand displacement in dichloro[2-(arylazo)heterocycle]palladium(II) complexes by benzimidazole – a kinetic and mechanistic study
Springer 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
Redox reaction of N,N′-phenylenebis-(salicylideneiminato)iron(III) with hypophosphorous acid in mixed aqueous medium
Springer Science and Business Media LLC - Tập 45 Số 3 - Trang 211-216 - 2020
I. Ibrahim, S. O. Idris, Ibrahim Abdulkadir, Ameh David Onu
Reaction of Ru(PPh3)3Cl2 with arylazoimidazoles: spectral characterisation and redox studies of [bis-{N(1)-alkyl-2-(arylazo)imidazole}-bis-(triphenylphosphine)]-ruthenium(II) perchlorate
Springer 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 water
Springer 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
Bis(Saccharinato)Nickel(II) Complexes with 2-Aminomethyl and -Ethylpyridines. Syntheses, Crystal Structures, Spectral and Thermal Analyses of trans-[Ni(sac-N)2(ampy-N,N )2] and trans-[Ni(sac-O)2(aepy-N,N′)2]
Springer Science and Business Media LLC - Tập 29 Số 5 - Trang 477-482 - 2004
Veysel T. Yılmaz, Sema Çağlar, William T. A. Harrison
Tổng số: 4,003   
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