Adamantine unit

Fig. 10. a Me4Sg adamantine unit, b Triangular trimer of adamantine units linked by the tetrahedral MeSjSH building unit... 

C150H186 hexabenzocoronene derivative polymantanes acenaphthofluoranthenes c/s-polyisoprene -[CH2C(CH3)=CHCH2].-isoprene—isobutylene copolymer styrene—butadiene copolymer ethylene—propylene copolymer liquid crystal (component for photovoltaic films) new material hydrocarbons built from fused adamantine units conductive ladder polymer natural rubber synthetic rubber... 

PROUSTITE. This ruby-silver mineral crystallizes in the hexagonal system its name is a product of its scarlet-to-vermilion color when first mined It is a silver arsenic sulfide. AgjAsS, of adamantine luster Hardness of 2-2,5 specific gravity of 5.55-5.64. Usual crystal habit is prismatic to rhombohedral more commonly occurs massive. Conchoidal to uneven fracture transparent to translucent color, scarlet to vermilion red. Light sensitive must be kept in dark environment to maintain its primary character. A product of low-tcmpcraturc formation in most silver deposits. Notable world occurrences include the Czech Republic and Slovakia, Saxony, Chile and Mexico. Found in minor quantities in the United States the most exceptional occurrence at the Poorman Mine, Silver City District. Idaho where a crystalline mass of some 500 pounds (227 kilograms) was recovered m 1865, It was named for the famous French chemist, Louis Joseph Proust. 

Huang and co-workers also investigated the host-guest complexation ability of bulky adamantine cationic guest G5.127 with a pillar[6]arene with one hydroquinone unit (H5.40). The iiT value of the H5.403G5.127 complex was (3.33 0.99)X10 which is double that of the per-propylated pil-lar[6]arene H5.33 3G5.127 complex [X"= (2.00 0.63) x 10 M ]. Replacing... 

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