Weimei Luo

3He NMR spectra of highly reduced C60

Two signals were observed in the 3He NMR spectrum of 3He@C60H36. The major signal corresponds with the 3He chemical shift calculated for a structure with D3d′ symmetry.

Reduction of C60 using anhydrous hydrazine

Abstract Buckminsterfullerene (C 60 ) can be reduced by anhydrous hydrazine to yield a mixture of C 60 H 2 , C 60 H 4 and other more highly reduced fullerenes.

Synthesis of [2.2]Paracyclophane Annelated Cycloproparenes

Abstract The [2.2]paracyclophane annelated cycloproparenes 2 and 3 were synthesized by dehydrohalogenation of the adducts prepared by reacting 1-bromo-2-chlorocyclopropene with 1-vinyl[2.2]paracyclophane-1-ene and 1,2-dimethylene[2.2]paracyclophane, respectively.

SYNTHESIS OF A NOVEL DICYCLOPROPARENE

Abstract A novel bridged dicycloproparene has been synthesized by treating the Diels-Alder adduct of 1-bromo-2-chlorocyclopropene and 2,3,5,6-tetramethylidene[2.2.2]bicyclooctane with potassium t-butoxide in tetrahydrofouran.

Synthesis of new molecular systems

The versatile cyclopropene synthon 1 -bromo-2-chlorocyclopropene has been used to synthesize new di- and tricycloproparenes. Treatment of these cycloproparenes with silver ion in chloroform leads to rapid oligomerization via carbocation intermediates to give materials in which the aromatic systems are connected by six-membered rings. The ladder polymer formed by treating the linearly fused dicyclopropanaphthalene with silver ion in chloroform has been characterized by solid state nuclear magnetic resonance spectroscopy.