Syntheses, crystal structures and properties of two thiocyanato bridged coordination polymers

✍ Scribed by Jing Lu; Hou-Ting Liu; Da-Qi Wang; Xian-Xi Zhang; Da-Cheng Li; Jian-Min Dou

• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 553 KB
• Volume: 938
• Category: Article
• ISSN: 0022-2860
• DOI: 10.1016/j.molstruc.2009.09.046

✦ Synopsis

Two thiocyanato bridged coordination polymers {[Cd(l-SCN) 2 (htm)(H 2 O)]ÁH 2 O} n (1) and [Cu(l-SCN) 2 (Him) 2 ] n (2) (htm = hexamethylenetetramine, Him = imidazole) have been synthesized and characterized by single-crystal X-ray analyses. For these two compounds, the adjacent metal centers are bridged by a pair of l 1,3 -SCN À to form 1-D array, which are further linked to 2-D supramolecular network by hydrogen bonds. And, the interactions between metal center and sulfur atom of thiocyanato ligand obey the HSAB rule. Compound 1 exhibits good fluorescent emissions. Compound 2 exhibits intra-chain Cu(II)-Cu(II) ferromagnetic coupling with J = 1.58 cm À1 .