Abstract

The presented dissertation consistsof two main partsand focuses on the synthesis and characterization of new low-valent phosphorus compounds. Thesestudies have already been fully described in three JCR-journals. The first partdescribes the utilization ofselectedphosphanylphosphinidene transition metal complexes as a source of diversified phosphorus ligands. For thispurposethree complexes havebeenchosen:[(DippN)2(Cl)W(η2-tBu2P-P)][Li(dme)3], [(pTol3P)2Pt(η2-tBu2P=P)], and [(dppe)Pt(η2-tBu2P=P)]. The reactivity of these complexes toward terminal dihaloalkanes and chalcogens was taken under investigation. As a result, new complexes with a variety of phosphorusmoietiessuch astBu2PP-R (R = Me, I, (CH2)3Br, (CH2)nPPtBu2 (n = 4, 6), PPtBu2 )ortBu2P-P-Se, tBu2P(Se)-P, tBu2P-P-P andtBu2P(S)-P-P-PtBu2were obtained.In the second part a new family of diphosphinoboraneswas synthesized that contain not only phosphorus but also boron atom in the structure. Diphosphinoboranes(R2P)2BR’were formed as a result of the reactions of selected lithium phosphides R2PLi (R2P=tBu2P, Cy2P, Ph2P,tBuPhP) and dibromoboranes R’BBr2(R’ = NiPr2, Ph). Theycan be classified in three different groups depending on their electronic and structural properties. The amino(diphosphino)borane(Ph2P)2BNiPr2has also been proven to actaschelating ligand in the reaction with CODPtMe2.

Author (1)