Syntheses and Crystal Structures of Four Supramolecular Halides/Pseudohalides: [(ZnCl4)(BPX)], [(CdCl4)(BPX)], [(HgCl4)(BPX)], and [Cu4(SCN)6(BPX)] n Directed by 1, 4-Bis(pyridinium)xylol Cations

2011 
Four supramolecular compounds, [(ZnCl4)(BPX)] 1, [(CdCl4)(BPX)] 2, [(HgCl4)(BPX)] 3 and [Cu4(SCN)6(BPX)]n4 (BPX = 1, 4-bis(pyridinium)xylol), were synthesized and characterized by IR spectrum and X-ray crystallography. The crystal structures of 1-3 show that they all crystallize in monoclinic systems with mononuclear tetrachlorometallate structure. Compound 4 crystallizes in triclinic system, space group P-1 in which four SCN−ions serve as bridging ligands to link four Cu(I) ions, giving rise to a 16-numbered ring. Many 16-membered rings are bridged by SCN−to form a one-dimensional chain structure. Furthermore, Cu-Cu bonds bridge two chain structures to form a one-dimensional complex chain structure.
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