《Synthesis and characterization of palladium(II) complexes with hybrid phosphinoferrocene ligands bearing additional O-donor substituents》 was written by Vosahlo, Petr; Schulz, Jiri; Skoch, Karel; Cisarova, Ivana; Stepnicka, Petr. Name: Di-μ-chlorobis[2-[(dimethylamino)methyl]phenyl-C,N]dipalladium(II) And the article was included in New Journal of Chemistry in 2019. The article conveys some information:
While 1,1′-bis(diphenylphosphino)ferrocene (dppf) is widely used as a ligand in coordination chem. and catalysis, its congeners with oxygen-containing functional groups have long been overlooked. Accordingly, we studied the coordination behavior in Pd(II) complexes of three phosphinoferrocene ligands bearing secondary O-donor groups, Ph2PfcR, wherein R = CHO (1), Ac (2) and CMe2(OH) (3), and fc = ferrocene-1,1′-diyl. Depending on the stoichiometry, reactions of 1-3 (L) with [PdCl2(cod)] (cod = η2:η2-cycloocta-1,5-diene) produced the resp. mono- and dipalladium complexes, trans-[PdCl2(L-κP)2] and trans-[PdCl(μ-Cl)(L-κP)]2. Compound [PdCl(μ-Cl)(3-κP)]2 was found to dehydrate readily, giving rise to [PdCl(μ-Cl)(Ph2PfcC(Me):CH2-κP)]2. Furthermore, ligands 1-3 cleaved [(LNC)Pd(μ-Cl)]2 (LNC = 2-((dimethylamino-κN)methyl)phenyl-κC1), yielding [(LNC)PdCl(L-κP)], which were converted into the cationic complexes [(LNC)PdCl(L)]X (L/X = 1/PF6, 2/SbF6, 3/PF6). Compounds with ligands 1 and 2 were structurally authenticated as stable bis-chelate complexes. In contrast, the product featuring ligand 3 was rather unstable and converted into [(LNC)Pd(AcOEt-κO)(3-κP)][PF6] upon recrystallization Weak oxygen coordination was confirmed via reactions of [(LNC)PdCl(L)]X with (PhCH2NEt3)Cl in which the parent chloride complexes were regenerated, and this was further corroborated by DFT computations. Our findings, pointing to hemilabile coordination of 1-3, are relevant for catalysis because de-coordination of the weaker binding O-donor moiety may open a vacant site for a substrate, thereby enhancing the catalytic properties of metal complexes with ligands of this type. In the experiment, the researchers used Di-μ-chlorobis[2-[(dimethylamino)methyl]phenyl-C,N]dipalladium(II)(cas: 18987-59-2Name: Di-μ-chlorobis[2-[(dimethylamino)methyl]phenyl-C,N]dipalladium(II))
Di-μ-chlorobis[2-[(dimethylamino)methyl]phenyl-C,N]dipalladium(II)(cas: 18987-59-2) belongs to organochlorine compounds. The wide structural variety and divergent chemical properties of organochlorides lead to a broad range of names, applications, and properties. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Name: Di-μ-chlorobis[2-[(dimethylamino)methyl]phenyl-C,N]dipalladium(II)
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