Electronically Active Cyclocarborane-Metal-Arene Assemblies
Abstract
The designed synthesis of stable, soluble macromolecular complexes incorporating MC2B3 subunits (in which M is a transition metal) was explored in detail, with emphasis on (1) the efficient preparation of viable building-block molecules such as Cp*Co(Et2C2B3Hs) (Cp* = Tn5-C5Me5); (2) the derivatization and tailoring of these via attachment of substituents (including organic functional groups) to the carborane rings; (3) the construction of multidecker stacks via a novel metal-promoted stacking process; (4) the linkage of stacked sandwiches via coupling, fusion, and other methods; and (5) initial studies on the preparation of electroactive or magnetoactive solid state materials from metallacarborane precursors. The synthesis of novel metallacarborane sandwiches that are direct structural analogues of metallocenes, and mixed-sandwich salts of the type Cp2M+ (Et2C2Bn)2Mi in Which M and M' are transition metals was also achieved. Detailed studies of the molecular and electronic structures of many of the above systems were conducted via NMR, ESR, X-ray crystallography, and electrochemical methods.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 31, 1992
- Accession Number
- ADA255500
Entities
People
- Russell N. Grimes
Organizations
- University of Virginia