On molecular complexes derived from amino acids and nicotinamides in combination with boronic acids

Crystal Growth in Gels from the Mechanisms of Crystal Growth to Control of Polymorphism: New Trends on Theoretical and Experimental Aspects

“…A more concise way of using this term could probably emerge from the effects of polymorphism itself. At a pharmaceutical level, the presence of polymorphs of a compound causes differences in solubility and stability, and in the formulation procedures for that particular compound [2][3][4][5][6][7][8][9][10][11]. In biomineral systems, organisms use different polymorphs according to the system and function that are needed [12][13][14].…”

Supramolecular architectures sustained by delocalised C–I⋯π(arene) interactions in molecular crystals and the propensity of their formation

“…However, when is 4-iodophenylboronic acid is co-crystallised with 4,4'-bipyridine, as a monohydrate, 1.5 equivalents of trans-1,2-bis(4-pyridyl)ethene, 0.5 equivalent of 4,7phenanthroline, 226 isonicotinamide, nicotinamide 248 and 1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione, 249 no C-I•••π(arene) interactions were observed. The tri-iodide species, 1,3,5triethyl-2,4,6-tris((4-iodophenoxy)methyl)benzene, 15, 84 appears in three other crystals, namely in the m-xylene solvate, 86, 151 and in the chloroform and 1,2-dichloroethane solvates.…”

Crystal structure and Hirshfeld surface analysis of 3-cyanophenylboronic acid

“…This enables the generation of hydrogen-bonding networks with increased dimensionality (one to three dimensions) in the solid state (Fournier et al, 2003;Madura et al, 2015;Georgiou et al, 2017). In recent years, boronic acids have also been explored in the context of forming multicomponent molecular complexes with organic carboxylic acids (-COOH), amides (-CONH 2 ), alcohols (-OH) and pyridines, which are based on molecular recognition processes (Rodríguez-Cuamatzi et al, 2005;Madura et al, 2014;Herná ndez-Paredes et al, 2015;Campos-Gaxiola et al, 2017;Pedireddi & Lekshmi, 2004;Vega et al, 2010;TalwelkarShimpi et al, 2016). As part of our ongoing studies in this area, we report herein on the molecular and crystal structures of 3-cyanophenylboronic acid, I.…”