Metal-directed assembly of polyferrocenyl transition metal dithiocarbamate macrocyclic molecular boxes
摘要:
Novel redox-active polyferrocenyl transition metal dithiocarbamate macrocyclic molecular boxes (10a-c), (11) and (12a-c) are synthesised by reaction of the respective ferrocenyl secondary amines, namely, N,N'-bis(ferrocenemethyl)-1,3-bis(aminomethyl)benzene (4), 1,1'-bis(benzylaminomethyl)ferrocene (8) and 1,1'-bis((ferrocenylmethyl)aminomethyl)ferrocene (9) with carbon disulfide, potassium hydroxide and transition metal (zinc, copper, nickel) acetate in high yields (52-82%) and characterised by spectroscopic and electrochemical techniques. The single-crystal X-ray structure of 10a shows that each zinc atom is in tetrahedral geometry, being bonded to two dithiocarbamate ligands with Zn-S distances 2.32(1)-2.44(1) . (C) 2001 Elsevier Science B.V. All rights reserved.
作者:Wallace W. H. Wong、David Curiel、Siu-Wai Lai、Michael G. B. Drew、Paul D. Beer
DOI:10.1039/b416851h
日期:——
polyferrocenyl zinc(II) dithiocarbamate macrocyclic receptors containing ferrocene groups on the macrocycle's periphery and/or as part of the cyclic cavity is reported. The assemblies have been characterised by a range of spectroscopic techniques, electrochemical studies and in two cases by X-ray structure determination. The ability of these host systems to bind and sense electrochemicallyanionic guest species