95464-05-4Relevant articles and documents
The thiosulfate (S2O32?) ion; a neglected but simple hetero-donor ligand towards platinum(II), palladium(II) and nickel(II)
Henderson, William,Kaewthong, Aphiwat,Saunders, Graham C.
, (2022/01/24)
Reactions of the thiosulfate ligand (as sodium thiosulfate, Na2S2O3·5H2O) with phosphine complexes of the group 10 metals Ni(II), Pd(II) and Pt(II) resulted in five neutral thiosulfate complexes, [Ni(S2O3)(dppe)] (dppe = Ph2PCH2CH2PPh2), [Pd(S2O3)(dppe)], [Pd(S2O3)(dppf)] (dppf = Fe(C5H4PPh2)2), [Pd(S2O3)(PPh3)2] and [Pt(S2O3)(PPh3)2]. X-ray structure determinations of [Pd(S2O3)(dppf)], [Pd(S2O3)(PPh3)2] and [Pt(S2O3)(PPh3)2] confirmed that thiosulfate ligand coordinates as a bidentate chelating ligand via both sulfur and oxygen donor atoms. In addition, reactions of the thiosulfate ligand with dinuclear chloride-bridged cyclopalladated complexes gave four mononuclear anionic complexes [Pd(S2O3)(damp)]? (damp = N,N-dimethylbenzylamino, (CH3)2NCH2C6H4), [Pd(S2O3)(ptpy)]? (ptpy = p-tolylpyridyl), ]Pd(S2O3)(bzpy)]? (bzpy = 2-benzylpyridyl) and [Pd(S2O3))pap)]? (pap = 2-(phenylazo)phenyl). The structure of (Ph3PCH2Ph)[Pd(S2O3)(pap)] by X-ray crystallography revealed the ability of thiosulfate ligand to cleave the bridging chloride ligand on the starting complexes by acting as an S,O-donor chelating ligand. An ESI mass spectrometric investigation showed that the coordinated thiosulfate ligand undergoes fragmentation at elevated capillary exit voltages.
Preparation method of [1, 1'-bis (diphenylphosphino) ferrocene] palladium dichloride
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Paragraph 0030-0048, (2021/02/06)
The invention discloses a preparation method of [1, 1'-bis (diphenylphosphino) ferrocene] palladium dichloride, which comprises the following steps of: (a) adding palladium powder into an aqua regia solution, heating for dissolution, adding hydrochloric acid while the solution is hot to drive nitrate, cooling, and adding an ethanol-water mixed solution for dilution; (b) dissolving 1, 1'-bis (diphenylphosphino) ferrocene (dppf) in an organic solvent in a stirring state to obtain an organic solution of 1, 1'-bis (diphenylphosphino) ferrocene; and (c) dropwise adding the solution obtained in thestep (a) into the solution obtained in the step (b), stirring for reaction, cooling, filtering, washing, draining, and carrying out vacuum drying to obtain a red [1, 1'-bis (diphenylphosphino) ferrocene] palladium dichloride complex crystal. The initial raw material palladium powder is directly used for replacing palladium dichloride, the target product is directly synthesized, the synthesis period is shortened, the reaction steps are simplified, the efficiency is improved, the production cost is reduced, the yield of the target product is larger than 99%, and the purity of the target productis larger than 99%.
Reactivity of hemilabile pyridyl- and methyl-substituted pyrimidylselenolates with [MCl2(dppf)] (M?=?Pd, pt; dppf?=?bis(diphenylphisphino)ferrocene)
Chauhan, Rohit Singh,Cordes, David B.,Slawin, Alexandra M.Z.,Yadav, Seema,Dash, Chandrakanta
supporting information, p. 125 - 129 (2018/04/17)
The bis(diphenylphisphino)ferrocene (dppf) derived palladium analogue of [PdCl2(dppf)] on reaction with the sodium salt of pyridyl/pyrimidyl selenolate yielded mononuclear cis configured complex [Pd(SeAr)2(dppf)] (Ar = C5H