X-ray crystal structure of copper(II) and silver(I) complexes with the new ligand 1,4-bis(5′-methyl-2,2′-bipyridine-5-ethyl)-benzene: the effects of substituent and linking position on the assembly of helical complexes

• Published in: Polyhedron Vol. 16; no. 9; pp. 1505 - 1512
• Main Authors: Fu, You-Jun, Yang, Hao, Wang, De-Fen, Tang, Wen-Xia, Wu, Bo-Mu, Mak, Thomas C.W.
• Format: Journal Article
• Language: English
• Published: OXFORD Elsevier Ltd 1997; Elsevier
• Subjects: Chemistry; Chemistry, Inorganic & Nuclear; copper(II) complex; Crystallography; helical complex; molecular assembly; Physical Sciences; Science & Technology; silver(I) complex; substituted bipyridene; silver(I) complex; molecular assembly; substituted bipyridene; helical complex; copper(II) complex; 1,2-BIS(2,2'-BIPYRIDYL-6-YL)ETHANE; REDOX; SYSTEMS; FUNCTIONALIZED 2,6-OLIGOPYRIDINES; STATE-INDUCED TRANSFORMATIONS; QUINQUEPYRIDINE
• ISSN: 0277-5387
• DOI: 10.1016/S0277-5387(96)00426-3

A new tetradentate ligand 1,4-bis(5′-methyl-2,2′-bipyridine-5-ethyl)-benzene(p-bpy) and its Cu II and Ag I complexes were synthesized. In complex 1, Cu(p-bpy)[ClO 4] 2·0.5MeCN, the four nitrogen atoms of the ligand coordinate with one Cu II to form a flattened tetrahedron. The metal ion also has weak interactions with two ClO 4 −, which link the Cu II ions in a one dimensional fashion to make an infinite chain. In complex 2, Ag( p-bpy)[ClO 4], the coordination geometry of Ag I is flattened tetrahedron.