Controlling the Formation of Two Concomitant Polymorphs in Hg(II) Coordination Polymers.

ABSTRACT: Controlling the formation of the desired product in the appropriate crystalline form is the fundamental breakthrough of crystal engineering. On that basis, the preferential formation between polymorphic forms, which are referred to as different assemblies achieved by changing the disposition or arrangement of the forming units within the crystalline structure, is one of the most challenging topics still to be understood. Herein, we have observed the formation of two concomitant polymorphs with general formula {[Hg(Pip)₂(4,4'-bipy)]·DMF}_n (P1A, P1B; Pip = piperonylic acid; 4,4'-bipy = 4,4'-bipyridine). Besides, [Hg(Pip)₂(4,4'-bipy)]_n (2) has been achieved during the attempts to isolate these polymorphs. The selective sy

SUBMITTER: Sanchez-Ferez F 

PROVIDER: S-EPMC8965880 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature