Extracurricular laboratory:new discovery of Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II)

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Application of 32993-05-8, Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn’t involve a screen. 32993-05-8, C41H35ClP2Ru. A document type is Article, introducing its new discovery.

The preparation of several ruthenium complexes containing cyanocarbon anions is reported. Deprotonation (KOBu?) of [Ru(NCCH2Ph3)2Cp]PF6 (1) gives Ru{N=C=CH(CN)}(PPh3)2Cp (2), which adds a second [Ru(PPh3)2Cp]+ unit to give [{Ru(PPh3)2Cp}2 (mu-NCCHCN)]+ (3). Attempted deprotonation of the latter to give the mu-NCCCN complex was unsuccessful. Similar chemistry with tricyanomethanide anion gives Ru{N=C=C(CN)2} (PPh3)2Cp (4) and [{Ru(PPh3) 2Cp} 2 {mu-NCC(CN)CN}]PF6(5), and with pentacyanopropenide, Ru{N=C=C(CN)C(CN)C(CN)2} (PPh3)2Cp (6) and [{Ru(PPh3)2Cp}2 {mu-NCC(CN)C(CN)C(CN)CN}]PF6 (7). The Ru(dppe)Cp* analogues of 6 and 7 (8 and 9) were also prepared. Thermolysis of 6 (refluxing toluene, 12 h) results in loss of PPh3 and formation of the binuclear cyclic complex {Ru(PPh3) Cp[mu-N=C={C(CN)=C(CN)2}CN]}2 (10). The solid-state structures of 2-4 and 8-10 have been determined and the nature of the isomers shown to be present in solutions of the binuclear cations 7 and 9 by NMR studies has been probed using Hartree-Fock and density functional theory.

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Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI