Coordination-driven Synthesis of a Self-assembled Architecture Bearing Urea Groups from a Triply Helical Fe(II) Complex of a Tripodal Ligand and a Pd(II) Complex

Triply helical iron(II) complexes of a tripodal 2,2 '-bipyridine ligand bearing 4-pyridyl urea groups have undergone coordination-driven self-assembly with palladium(II)-bis(1,3-diphenylphosphinopropane), dppp, units affording the 2:3 complex in an almost quantitative yield. In the coordination-driven self-assembled architecture, the 4-pyridyl moieties of the iron(II)-tris(2,2 '-bipyridine) complexes coordinated to the palladium(II) cations ligated by dppp.