Synthesis and Structures of Infinite Coordination Polymers from 1,3-Bis(4-pyridyl)propane Ligand and Zinc Salts

• Published in: Journal of the Chinese Chemical Society (Taipei) 2006-04, Vol.53 (2), p.305-312
• Main Authors: Suen, Maw-Cherng, Tsai, Hui-An, Wang, Ju-Chun
• Format: Article
• Language: English
• Subjects: 1,3‐Bis(4‐pyridyl)propane; 3-Bis(4-pyridyl)propane; Coordination polymer; Gauche-anti; Zigzag chains
• ISSN: 0009-4536; 2192-6549
• DOI: 10.1002/jccs.200600038

The reaction of Zn(NO3)2‐6H2O, NH4SCN and bpp (bpp = 1,3‐bis(4‐pyridyl)propane) in CH3OH afforded the complex [Zn(NCS)2(bpp)]n, 1, while the reaction of Zn(ClO4)2‐6H2O and bpp in CH3OH afforded the complex [Zn(ClO4)2(bpp)2]n, 2. Both complexes have been characterized by spectroscopic methods and their structures have been determined by X‐ray crystallography. Crystal data for 1: Orthorhombic, space group P21212, a= 12.857(6), b = 14.822(7), c = 4.820(2) Å, β = 90°, V = 918.5(8) Å3, Z = 2 with final residuals R1 = 0.0747 and wR2 = 0.1657. Crystal data for 2: Tetragonal, space group I4/mcm, a = 11.612(1), b = 11.612(1), c = 23.247(9) Å, β = 90°, V = 3135(1) Å3, Z = 4 with final residuals R1 = 0.0523 and wR2 = 0.1064. The coordination polymers display a variety of structural architectures, ranging from zigzag chains (1) and one‐dimensional channel‐type architectures (2). The effects of the orientation of the nitrogen atom in the pyridine rings on the resultant structures are discussed.