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Metal–Carborane Multidecker Sandwich Complexes as Building Blocks for New Materials
Author(s) -
Grimes Russell N.
Publication year - 1996
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/(sici)1099-0739(199604)10:3/4<209::aid-aoc469>3.0.co;2-q
Subject(s) - carborane , unpaired electron , delocalized electron , chemistry , stacking , electron delocalization , paramagnetism , transition metal , metal , nanotechnology , planar , radical , organic chemistry , materials science , physics , computer graphics (images) , quantum mechanics , computer science , catalysis
Transition‐metal sandwich complexes incorporating bifacially coordinated C 2 B 3 planar carborane rings form a large and varied family of generally air‐stable, highly robust compounds that feature multidecker stacking. As a group, these complexes offer a number of advantages that are potentially of interest in the development of new electronic, magnetic and/or optical materials. They are remarkably versatile, accommodating a wide range of metals and organic substituents; they are soluble in organic solvents and are typically resistant to air and moisture; they can be reversibly oxidized and reduced; in many cases they are paramagnetic, exhibiting substantial electron delocalization of the unpaired electrons between metal centers. Moreover, the small carborane starting materials can now be prepared in large ( ca 100 g) quantities, making the complexes readily accessible. A brief overview of this area is presented with emphasis on the systematic utilization of metallacarborane sandwich complexes in the construction of large multimetallic systems and studies of their electronic and molecular structures.