Huang, Haw-Tyng; Zhu, Li; Ward, Matthew D.; Wang, Tao; Chen, Bo; Chaloux, Brian L.; Wang, Qianqian; Biswas, Arani; Gray, Jennifer L.; Kuei, Brooke; Cody, George D.; Epshteyn, Albert; Crespi, Vincent H.; Badding, John V.; Strobel, Timothy A. published the artcile< Nanoarchitecture through Strained Molecules: Cubane-Derived Scaffolds and the Smallest Carbon Nanothreads>, Recommanded Product: 2-Mercaptopyridinen-oxide sodiumsalt, the main research area is cubane derived scaffold carbon nanothread.
Relative to the rich library of small-mol. organics, few examples of ordered extended (i.e., nonmol.) hydrocarbon networks are known. In particular, sp3 bonded, diamond-like materials represent appealing targets because of their desirable mech., thermal, and optical properties. While many covalent organic frameworks (COFs)-extended, covalently bonded, and porous structures-have been realized through mol. architecture with exceptional control, the design and synthesis of dense, covalent-extended solids has been a longstanding challenge. We report the preparation of a sp3-bonded, low-dimensional hydrocarbon synthesized via high-pressure, solid-state diradical polymerization of cubane (C8H8), which is a saturated, but immensely strained, cage-like mol. Exptl. measurements show that the obtained product is crystalline with 3-dimensional order that appears to largely preserve the basic structural topol. of the cubane mol. precursor and exhibits high hardness (comparable to fused quartz) and thermal stability ≤300°. Among the plausible theor. candidate structures, 1-dimensional carbon scaffolds comprising 6- and 4-membered rings that pack within a pseudosquare lattice provide the best agreement with exptl. data. These diamond-like mol. rods with extraordinarily small thickness are among the smallest members in the carbon nanothread family, and calculations indicate 1 of the stiffest 1-dimensional systems known. These results present opportunities for the synthesis of purely sp3-bonded extended solids formed through the strain release of saturated mols., as opposed to only unsaturated precursors.
Journal of the American Chemical Society published new progress about Compression. 3811-73-2 belongs to class pyridine-derivatives, and the molecular formula is C5H4NNaOS, Recommanded Product: 2-Mercaptopyridinen-oxide sodiumsalt.