Self-Assembly, Crystal Structure and Thermal Property of a Coordination Polymer [(DDTD)(Cu₃I₅)]_n

Abstract

A novel coordination polymer [(DDTD)(Cu₃I₅)]_n(DDTD = 5, 8-diazoniadispiro[4.2.4.2]tetradecane dication) was obtained and characterized by X-ray crystallography, elemental analyses, and IR spectroscopy. In the polymer, a unique 1D helical chain of (Cu₃I₅)_n cluster was constructed, and the C-H· · ·I intermolecular interactions extended the 1D entities into high-dimensional frameworks to stabilize the supramolecular architecture. Furthermore, thermal property (TG, DTG and DSA) of the polymer was studied.

Keywords:

• 5
• 8-diazoniadispiro [4.2.4.2] tetradecane
• coordination polymer
• Cu _n I _n cluster
• self-assembly

The author acknowledges the NSFC(20671083) and the UITP of ZZU (2007CXSY044).

Notes

^a R₁ =     ‖Fo| – | Fc‖ / |Fo|;

^b wR₂ = [w(Fo²- Fc²)²/w(Fo²)²]^1/2.