10.1016/S1381-1169(00)00171-0
The research investigates the preparation of hydridoplatinum–molybdenum or tungsten heterodinuclear complexes through a selective β-hydrogen elimination process. The study explores the synthesis of these complexes, which are formed by thermolysis of ethylplatinum–molybdenum or tungsten complexes. The β-hydrogen elimination process is facilitated by the presence of electron-withdrawing transition metal ligands at platinum, such as Co(CO)?. The study also examines the kinetics of the β-hydrogen elimination reactions and the hydride transfer reactions induced by acetylene compounds. Key chemicals involved in the research include dppe (1,2-bis(diphenylphosphino)ethane), ethylplatinum complexes (dppe EtPt–MCp CO), hydridoplatinum complexes (dppe HPt–MCp CO), and various acetylene compounds like dimethyl acetylenedicarboxylate and diphenylacetylene. These chemicals play crucial roles in the synthesis, β-hydrogen elimination, and hydride transfer processes studied.
10.1021/acs.organomet.7b00603
The study investigates the impact of ligands on the reactivity of iron complexes in the reductive radical cyclization of unsaturated organic halides. It focuses on the role of ligands in the structure and reactivity of active anionic iron(I) hydride and borohydride species. The researchers synthesized an iron(II) borohydride complex, [(η1-H3BH)FeCl(NCCH3)4], and compared its catalytic properties with those of the iron(II) hydride complex, [HFeCl(dppe)2]. The study found that the ligand environment significantly influences the catalyst's ability to activate substrates, with the borohydride complex being more effective in activating both iodo- and bromoacetals compared to the hydride complex. The research provides new insights into the design of radical mediators, emphasizing the importance of ligand tailoring on the metal center for successful catalysis.
10.1021/om050483l
The research focuses on the synthesis, characterization, and electrochemical properties of various ferrocenylethynyl complexes containing iron (Fe), ruthenium (Ru), and osmium (Os). The study explores the attachment of ferrocenylethynyl and ferrocene-1,1′-bis(ethynyl) groups to metal centers such as M(PP)Cp′, where M represents Fe, Ru, or Os, and PP denotes different phosphine ligands. The researchers synthesized these complexes using various chemical reactions, including the use of tetracyanoethene (tcne) to form tetracyanobuta-1,3-dienyl or η3-allylic derivatives, and the addition of Me+ to create vinylidene derivatives. The molecular structures of 14 of these complexes were determined by crystallographic methods. The study investigates the electronic communication between the redox-active metal centers through the ferrocene nucleus and provides insights into the electrochemical behavior of these complexes. Key chemicals involved in the research include ferrocene derivatives, ruthenium and osmium compounds, phosphine ligands such as dppe (1,2-bis(diphenylphosphino)ethane), and tetracyanoethene.
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