Programmable self-assembly of homo- or hetero-metallomacrocycles using 4-(1H-pyrazolyl-4-yl)pyridine†
Abstract
The dimetallic [M2(bpy)2(NO3)2](NO3)2 moieties (M = Pd(II) or Pt(II)) react preferentially at the pyrazolyl end of the pyridyl-pyrazole ligand, giving rise to dimetallic corners. Subsequently, the dimetallic corner building blocks featuring two pyridine donors are coordinated by monometallic [M(bpy)(NO3)2] moieties (M = Pd(II) or Pt(II)) to form homo- or hetero-metallomacrocycles.