The first chiral amidinate borohydride rare earth compounds and compounds based on (S)-HPEBA ((S,S)-N,N-bis-(1-phenylethyl)benzamidine) ligand were reported by Roesky et al. To continuing this work, the new chiral ligand (S)-HNEBA ((S,S)-N,N-bis-(1-naphthylethyl)benzamidine) were synthesized. The corresponding amidinate metal complexes were successfully obtained by amine elimination. The luminescent and magnetic properties of rare earth compounds were studied. Alkaline earth metal compounds have been extensively studied as catalysts in synthetic chemistry. However, chiral amidinate alkaline earth metal complexes have never been reported. Chiral amidinate ligand (S)-HPEBA was introduced into the coordination chemistry of the alkaline earth metal as well as divalent lanthanides, their catalytic activities in hydrophosphination have been investigated. The Ba compound showed high catalytic activities in the hydrophosphination reaction. Moreover, since rare earth metal COT complexes exhibit excellent SMM behavior, it is of great interest to study the magnetic behavior of COT amidinate complexes. Thus, amidine ligand (S)-HPEBA and (S)-HPETA are introduced into the corresponding COT amidinate complexes for magnetic properties studies. The Er Compound exhibited typical field-induced SMM behavior. Furthermore, inspired by the promising application of lanthanide SMMs and the research of SMMs based on sandwich type lanthanide complexes, a series of novel sandwich type complexes comprising of Pc and COT ligand were designed and synthesized.

Defined metalmethyl compounds were first reported in the middle of the 19th century and the interest in metal alkyls is still growing. So far 26 out of 60 non-radioactive metals have been found to form homoleptic isolable methyl componds [M(CH3)x] (x = 1-6). The report on the successful synthesis of dimethylcalcium [CaMe2]n triggered further research on the often discussed parallels of alkaline-earth metals and the divalent rare-earth-metals Sm2+, Eu2+ and Yb2+. Dimethylytterbium [YbMe2]n could be accessed via the reaction of the donor-free precursor [Yb{N(SiMe3)2}2]2 with methyllithium. [YbMe2]n was fully characterized and follow-up chemistry was investigated. Noteworthily, the protonolysis reaction of [YbMe2]n with protic hydrotris(3-tBu-5-Me-pyrazolyl)borate HTptBu,Me gave the first terminal Yb2+ methyl complex [TptBu,MeYb(CH3)(thf)] providing direct evidence of the existence of the methyl precursor. Further, the synthesis of the divalent dimethyl compounds of samarium and europium was attempted. The focus of the second part of this work was the synthesis of new rare-earth-metal imide complexes. Through a one-pot salt-metathesis reaction (LnI2(thf)2 + KTptBu,Me + KNHR with Ln = Sm, Eu, Yb and R = 2,6-iPr-C6H3, 2,6-Me-C6H3, 3,5-CF3-C6H3, SiPh3) or a protonolysis approach (TptBu,MeYb(N(SiMe3)2) + H2NR, R = R = 2,6-iPr-C6H3, 3,5-CF3-C6H3, SiPh3) efficient access to amide complexes [TptBu,MeYbNH(R)(thf)x] (R = 2,6-iPr-C6H3, 2,6-Me-C6H3, 3,5-CF3-C6H3, SiPh3) could be gained. All synthesized complexes were fully characterized and their reactivity toward Lewis acids and bases as well as their redox chemistry was further investigated. The obtained compounds are potential precursor complexes for the synthesis of rare-earth-metal imide complexes.

The series Topics in Organometallic Chemistry presents critical overviews of research results in organometallic chemistry. As our understanding of organometallic structure, properties and mechanisms increases, new ways are opened for the design of organometallic compounds and reactions tailored to the needs of such diverse areas as organic synthesis, medical research, biology and materials science. Thus the scope of coverage includes a broad range of topics in pure and applied organometallic chemistry, where new breakthroughs are being achieved that are of significance to a larger scientific audience. The individual volumes of Topics in Organometallic Chemistry are thematic. Review articles are generally invited by the volume editors.

Over the years, the uses and applications of rare earth elements (REEs) diversified in various fields such as catalysis, production of magnets, glasses, alloys, and electronics. This book consists of fifteen chapters, which present recent advances and outlook on REEs and their oxides/salts in catalytic organic transformations, biomedical applications, bioremediation and environmental impacts.

A complete overview covering the application of metal-based chiral Lewis acids from all parts of the periodic table, the Author emphasizes the most recent contributions to the field as well as prominent direction of development. The book discusses the design of chiral complexes as well as a wide spectrum of reactions promoted by various chiral Lewis acids, including water-compatible acids as well as the most important applications in the chemical and pharmaceutical industries. A must-have for catalytic and organic chemists working in the field, both in academia and industry, as well as pharmaceutical and medicinal chemists.