01474nas a2200181   4500008004100000022001400041245008100055210006900136260007100205300001200276490000600288520080300294100001201097700001901109700002701128700002201155856011501177       2006                        eng d  a1528-748300aContrasting solid-state structures of trithiocyanuric acid and cyanuric acid0 aContrasting solidstate structures of trithiocyanuric acid and cy  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcAPR  a846-8480 v63 a<p>Although trithiocyanuric acid (TTCA) has been investigated widely as an agent in the formation of molecular cocrystals, the crystal structure of pure TTCA has never been determined. Attempts to grow crystals of pure TTCA by crystallization from solution invariably lead to the formation of solvate cocrystals, and desolvation of these materials leads to polycrystalline powder samples. In this paper, we report the structure determination of pure TTCA directly from powder X-ray diffraction data, using the direct-space genetic algorithm technique for structure solution followed by Rietveld refinement. The structure presents interesting contrasts to that of the oxygen analogue, cyanuric acid, and alludes to the possibility that both compounds might be capable of exhibiting polymorphism.</p>1 aGuo, F.1 aCheung, E., Y.1 aHarris, Kenneth, D. M.1 aPedireddi, V., R.  uhttps://library.ncl.res.in/content/contrasting-solid-state-structures-trithiocyanuric-acid-and-cyanuric-acid-001278nas a2200205   4500008004100000022001400041245018200055210006900237260007300306300001000379490000800389520040300397653001900800653002900819653003000848100002000878700002200898700002200920856013000942       2009                        eng d  a0022-286000aC-H center dot center dot center dot N hydrogen bonds mediated solid state structures of 2,2 `-bis (4-pyridylsulfanylmethyl)-1,1 `-biphenyl and 9-(4-pyridylsulfanyl)phenanthrene0 aCH center dot center dot center dot N hydrogen bonds mediated so  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcNOV  a81-840 v9373 a<p>Solid state structure elucidation of sulfanyl ligands, 2,2'-bis(4-pyridylsulfany[methyl)-1,1'-biphenyl, L(1) and 9-(4-pyridylsulfanyl)plienanthrene, L(2) are reported. In the structures L(1) and L(2), the molecules are self-assembled through C-H center dot center dot center dot N hydrogen bonds, yielding ensembles of cyclic and helical networks. (C) 2009 Elsevier B.V. All rights reserved.</p>10ahydrogen bonds10anoncovalent interactions10aSupramolecular assemblies1 aUpadhye, Ketaki1 aPrakashaReddy, J.1 aPedireddi, V., R.  uhttps://library.ncl.res.in/content/c-h-center-dot-center-dot-center-dot-n-hydrogen-bonds-mediated-solid-state-structures-22-0