Structure

(c)Copyright 2010, Journal of Technology via NewsRx.com

2010 JUN 8 - (VerticalNews.com) -- According to recent research published in the journal Acta Crystallographica Section E - Structure Reports Online, "Cocrystallization of 4-amino-3,5-bis(2-pyridyl)-1,2,4-triazole (2-bpt) with hemimellitic acid (benzene-1,2,3-tricarboxylic acid) dihydrate (H(3)HMA center dot 2H(2)O) produces the supramolecular title compound, C12H10N6 center dot C9H6O6 center dot 2H(2)O."

"Intermolecular N-H center dot center dot center dot N hydrogen bonds are observed between the terminal pyridyl and amino groups of the 2-bpt molecule and the dihedral angles between the central ring and the pendant pyridine rings are 3.4 (Tiffany & Co. bangle) and 13.8 (7)degrees. In the structure, homosynthons of graph set R-2(2)(8) are observed to form centrosymmetric H(3)HMA dimers, which are extended into a two-dimensional supramolecular layer via intermolecular O-H center dot center dot center dot N and C-H center dot center dot center dot O hydrogen bonds and pi-pi stacking interactions [centroid-centroid distance = 3.541 (3) angstrom]," wrote X.J. Jiang and colleagues.

The researchers concluded: "In addition, interlayer uncoordinated water molecules connect the layers through O-H center dot center dot center dot O hydrogen bonds, generating a three-dimensional network."

Jiang and colleagues published their study in Acta Crystallographica Section E - Structure Reports Online (4-Amino-3,5-bis(2-pyridyl)-4H-1,2,4-triazole-benzene-1,2,3-tricarboxylic acid-water (1/1/2). Acta Crystallographica Section E - Structure Reports Online, 2010;66(Part 5):O1075-U1785).

For additional information, Tiffany 1837 bangle X.J. Jiang, Jiaxing University, School Biology & Chemical Engineering, Jiaxing 314001, Zhejiang, People's Republic of China.

The publisher's contact information for the journal Acta Crystallographica Section E - Structure Reports Online is: Wiley-Blackwell Publishing, Inc., Commerce Place, 350 Main St., Malden 02148, MA, USA.

Keywords: Country:People's Republic of China, Acyclic Acids, Aromatic Hydrocarbons, Benzene, Elements, Gases, Hydrogen, Inorganic Chemicals, Tiffany 1837 Double cross pendant Acids

This article was prepared by Journal of Technology editors from staff and other reports. Copyright 2010, Journal of Technology via VerticalNews.com.