Synthesis and Characterization of Cationic Square-Planar Iridium(I) Complexes Containing Chiral Diphosphines was written by Morandini, Franco;Pilloni, Giuseppe;Consiglio, Giambattista;Mezzetti, Antonio. And the article was included in Organometallics in 1995.Safety of Chlorobis(ethylene)iridium(I) dimer This article mentions the following:
Cationic square-planar complexes [Ir(diphosphine)2]Cl [diphosphine = (R,R)- and rac-cypenphos, (S,S)-chiraphos, (R)- and rac-prophos, (R)-phenphos; cypenphos = 1,2-bis(diphenylphosphino)cyclopentane, chiraphos = MeCH(PPh2)CH(PPh2)Me, prophos = Ph2PCH2CH(PPh2)Ph, phenphos = PhCH(PPh2)CH2PPh2] were synthesized starting from [Ir(COE)2Cl]2 (COE = cyclooctene) or [Ir(C2H4)2Cl]2. The complexes were fully characterized through 1H- and 31P{1H}-NMR spectroscopy. With the C1 diphosphines both cis and trans isomers are formed with low selectivity. Using racemic cypenphos no diastereoselectivity in the formation of the complexes was observed For the racemic prophos the diastereoselectivity is different for the two geometrical isomers formed. A study of the electrochem. behavior of these complexes in acetonitrile with some attention to the characteristics of the electron transfer process was carried out. The results are compared with those previously obtained in the reduction of the corresponding dppe derivative and provide a tool for the determination of the relative basicity of the ligands. The reduction proceeds by a single two-electron step to a d10 anion, which is quenched by the protic solvent to give the final metal hydride derivative which in the case of [Ir(dppe)2]Cl and [Ir{(R,R)-cypenphos}2]Cl were observed by NMR spectroscopy. In the experiment, the researchers used many compounds, for example, Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1Safety of Chlorobis(ethylene)iridium(I) dimer).
Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.Safety of Chlorobis(ethylene)iridium(I) dimer
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics