Crystal Structure of A Co-Crystalline Compound From of 2-Aminopyrimidine and Pyridine-2,6-Dicarboxylic Acid

The addition of 2-aminopyrimidine (amp) and pyridine-2,6-dicarboxylic acid (pydch2) in water solution led to co-crystalline compound (amp)(pydch2)# the compound crystallized in a orthorhombic system, space group pmn21 with cell parameters at -173 c°: a = 11#550(2), b = 12#324(3), c = 3#6057(7), v= 513#25(18)å3, z = 1# the r1 [i 2(i)] and wr2 values are 0#0365 and 0#0856, respectively, for all 612 independent reflections# crystal structure of (amp)(pydch2) was stabilized by hydrogen bonds, π-π stacking between aromatic rings and van der waals interactions#keywords: co-crystalline compound, 2-aminopyrimidine, pyridine - 2,6dicarboxylic acid, crystal structureco-crystals, referred to multi-component crystals, include two or more different compounds which are bound to each other by non-covalent bonds# hydrogen bonds play an important role in adducting neutral molecules [1]# bronsted acids can be used as proton-donors in hydrogen- bonded systems for preparing co- crystals, without the transfer of hydrogen ions to form salts