Herein we report the successful synthesis and isolation of tiara[6]arene, a constitutional isomer calix[6]arene consisting six phenol units linked by para-substituted methylene bridges, from an isomeric mixture asymmetrically substituted pillar[6]arene intermediates. Similar to its pentameric analogue, tiara[6]arene displays high conformational freedom in solution rich polymorphism solid state....

Changes in molecular conformation and its relationship with crystal polymorphism have been well documented previous work. To the best of our knowledge, however, effect solvate formation on has never explored. Using Cambridge Structural Database combination modeling, we provide insights into impact adopted by a compound whether such is different to that found neat form(s). Typically, more flexib...

d-mannitol is a common six-carbon sugar alcohol, which widely used in food, chemical, pharmaceutical, and other industries. Polymorphism defined as the ability of materials to crystallize into different crystal structures. It has been reported for long time that three polymorphs: β, δ, α. These polymorphs have unique physicochemical properties, thus affecting industrial applications d-mannitol....

The molecular structures of sulphonamides are interesting for evaluating their mobility in soils and preparing composite complexes optimizing the use these drugs. In this work, several arylsulfonamides along with conformational analysis tautomerism were investigated theoretically. spectroscopical properties arylsulfonamides, also studied at level by using a computational modeling quantum mechan...