Preparation and Electrical Properties of Silicone Composite Films Based on Silver Nanoparticle Decorated Multi-Walled Carbon Nanotubes.

The electrical properties of silicone composite films filled with silver (Ag) nanoparticle-decorated multi-walled carbon nanotubes (MWNT) prepared by solution processing are investigated. Pristine MWNT is oxidized and converted to the acyl chloride-functionalized MWNT using thionyl chloride, which is subsequently reacted with amine-terminated poly(dimethylsiloxane) (APDMS). Thereafter, APDMS-modified MWNT are decorated with Ag nanoparticles and then reacted with a poly(dimethylsiloxane) solution to form Ag-decorated MWNT silicone (Ag-decorated MWNT-APDMS/Silicone) composite.

Charge-compensated Zn metallocenes with σ-/π-chelating carboranyl ligands for the formation of constrained geometry Ru(II) and Ni(II) complexes.

Charge-compensated zinc metallocenes of types [(η(3)-C(2)B(9)H(10))(2)Zn][(η(1)-NMe(2))ZnEt](2) (5) and [{η(3)-(Me)C(2)B(9)H(9)}(2)Zn][(η(1)-NMe(2))ZnEt](2) (6) were produced by reacting σ-/π-chelating aminoalkyl dicarbollides, 7-Me(2)N(H)CH(2)-7,8-C(2)B(9)H(11) (1) and 7-Me(2)N(H)CH(2)-8-Me-7,8-C(2)B(9)H(10) (2), with diethylzinc. Zincocene 5 proved to be an excellent synthon for the formation of dicarbollide-based σ-/π-type constrained Ru and Ni complexes.

Novel titanium complexes of a multidentate dicarbollide ligand. Synthesis and structural characterization of a constrained geometry complex.

The multidentate dicarbollide ligand nido-7,8-(NMe2CH2)2-7,8-C2B9H11 has been prepared, structurally characterized, and employed in the preparation of the novel mono- and trimetallic titanium complexes [eta5:eta1-(NMe2CH2)C2B9H9CH2NMe2]Ti(NMe2)2 and [eta5:eta1-[(NMe2CH2)C2B9H9CH2NMe2]Ti(NMe2)]2-mu3-O-Ti(NMe2)2.