Solvent‐controlled Syntheses and Crystal Structures of a Pair of Novel Thiocyanate‐bridged Copper(II) Complexes Constructed from 4‐Bromo‐2‐(cyclopropyliminomethyl)phenolate

A pair of novel thiocyanate‐bridged polynuclear copper(II) complexes, [Cu2(BCP)2(NCS)2]n (1) and [Cu2(BCP)2(MeOH)(NCS)2]2 (2) [BCP = 4‐bromo‐2‐(cyclopropyliminomethyl)phenolate], have been obtained from an identical synthetic procedure and starting materials using solvents as the only independent variable. Complex 1 was synthesized and crystallized using EtOH as the solvent, while complex 2 was synthesized and crystallized using MeOH as the solvent. Both complexes show novel self‐assembled supramolecular structures in their crystals as elucidated by X‐ray analyses. The polymeric dinuclear complex 1 contains [Cu2(BCP)2(NCS)2] units as the building blocks, crystallizes in the Pbca space group. The monomeric tetranuclear complex 2 contains [Cu2(BCP)2(MeOH)(NCS)2] units as the building blocks, crystallizes in the P21/n space group.