From Discrete Linear Zn~tBu_2 Molecules to 1D Coordination Polymers and 2D Fabrics

摘要

We have authenticated the molecular and crystal structure of Zn~tBu_2 and constructed the unprecedented 2D fabric structure using the tert-butylzinc molecules and l,2-bis(4-pyridyl)-ethane as simple building blocks. The X-ray crystal structure analysis revealed that the inorganic-organic polymeric chains weave to form fabric structures by the concerted C-H…π interactions involving the pyridine rings. We have also demonstrated that minor modifications in the organic linker caused by the introduction of the ethylene group lead to the decrease in the dimensionality of the supramolecular architecture; that is, Zn~tBu_2 and 1,2-bis(4-pyridyl)ethylene are assembled into 1D zigzag-like chains. Thus, this work furnished a strategy for the generation of a new class of organometallic coordination polymers. Ongoing research is being focused on the use of various metal alkyls and N,N-linkers in order to elucidate subtle factors governing self-assembly processes. A simple access to this new class of coordination polymers opens also opportunities to probe their potentially intriguing chemistry.