摘要:

Well characterized, stable, two-coordinate, open shell transition metal complexes are currently very rare species. The small number of known examples are limited to the first row metals Cr → Ni and the majority are derivatives of amide or modified amide ligands. A characteristic feature of the compounds is the small number of electrons in their valence shells, as low as eight in the case of the Cr complexes. The compounds are very reactive toward protic reagents and nucleophiles. However, this and many other aspects of their chemistry have not been well developed. Current data available are limited to structural (X-ray and electron diffraction) and some spectroscopic and magnetic studies.

ISSN:0260-3594    

DOI:10.1080/02603598908035794

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

The newly discovered transmetalation of polymetallic molecules by mononuclear transmetalators is an excellent source of a wide variety of related heteropolyatomic molecules and materials that cannot be obtained by other means. The systems discussed involve easily obtained reactants, stoichiometric reactions and easily separated products. Among the factors that affect specific transmetalation patterns are target structure, transmetalator identity and relative stability, redox phenomena, intramolecular ligand transfer and specific types of primary product fragmentation. A feature of reported transmetalation systems that make them excellent candidates for the production of new materials is that they are stoichiometric and flexible. Prospects for extending known systems to new targets and elements are discussed.

ISSN:0260-3594    

DOI:10.1080/02603598908035795

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

ISSN:0260-3594    

DOI:10.1080/02603598908035796

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

This is a scanned image of the original Editorial Board page(s) for this issue.

ISSN:0260-3594    

DOI:10.1080/02603598908035793

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor