Transition metal clusters containing ferrocenyl diphosphine

Barik, S K (2014) Transition metal clusters containing ferrocenyl diphosphine. MSc thesis.



ABSTRACT The ligating ability of 1,1-bis(diphenylphosphino)ferrocene (dppf) enables its extensive coordination chemistry to transition metals. To study the various ligating modes of dppf with chalcogenide transition metal clusters, three new compounds were synthesised and their mode of bonding has been studied. [Fe3Te2(CO)9{(PPh2)(C5H4)Fe(C5H4)(PPh2)}] (Te2Red3) was synthesised in room temperature , 31 P NMR spectra shows a singlet denoting dppf adopts a chelating mode of bonding, [Fe3Te2(CO)9{(PPh2)(C5H4)Fe(C5H4)(PPh2)}] (Te2Red1) was synthesised at 0o C and [Fe3Se2(CO)8(į1-dppf)] (Se2Black1) was synthesised at room temperature. From the 31 P NMR spectra it was found that one of the phosphorus was coordinated to the iron metal and the other phosphorus was hanging . The uncoordinated phosphorus was used for further cluster growth reactions with W(CO)5THF and the dppf ligand adopts inter-bridging mode of bonding in the compound [Fe3Se2(CO)8dppfW(CO)5].

Item Type:Thesis ( MSc)
Uncontrolled Keywords:1,1-bis(diphenylphosphino)ferrocene , chalcogenide transition metal clusters
Subjects:Chemistry > Inorganic Chemistry
Divisions: Sciences > Department of Chemistry
ID Code:5784
Deposited By:Hemanta Biswal
Deposited On:05 Aug 2014 16:18
Last Modified:05 Aug 2014 16:18
Supervisor(s):Chatterjee, S

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