Cation Complexation by a Lower Rim Calix(4)arene Derivative: Structural, Electrochemical and Thermodynamic Studies

Coordination chemistry of calix[4]arene derivatives with lower rim functionalisation and their applications

“…This group was particularly interested in studying cation-interactions. The ligands they studied (63)(64)(65) are shown in Fig. 32.…”

“…Her work in this area, prior to 2000, has been extensively reviewed [57]. She has published a number of detailed studies, since 2000, on a range of calix [4]arene derivatives including complexation studies of calix [4]arene ketone derivatives with sodium ions [58,59], complexation of calix [4]arene ester, ketone and acetamide derivatives with lanthanides [60], complexation of calix [4]arene pyridine derivatives with lead and mercury cations [61], complexation of calix [4]arene amines and amides with lanthanides [62], complexation of a partially substituted calix [4]arene aminophosphate derivative with a range of cations [63], complexation of calix [4]arene ester and ketone derivatives with lead and cadmium ions [64], complexation of calix [4]arene with mixed pendant arms (di-functionalised with ethylethanoate and ethylthioethoxy groups) with a range of cations [65,66]. Many of these studies offered a comprehensive investigation into the role of solvation of host and guest species in a given medium, and indeed medium effects feature as one of the main areas of focus of investigation in all of these studies.…”

Polythiacalix[4]amides as a Novel Category of Macromolecules; Synthesis, Antibacterial Evaluation and Investigation on their Spectral and Thermophysical Characteristics

“…In the last decade macrocyclic supramolecules especially calixarene family, were introduced as a potential sensor for recognition and separation of toxic elements, including Pb 2+ , Cd 2+ and Hg 2+ . [42][43][44] Among them, thiacalixarene and its derivatives having sulfur as an excellent auxiliary chelating agent in their structure have an effective interaction with transition metal cations. Incorporation of thiacalixarene in the backbone of the polymeric materials could help us to prepare such an interesting membrane with great applicability.…”

A new calix[4]arene derivative and its ionic recognition for silver(i) and mercury(ii): the solvent effect

“…Other contributions from our Group include pyridino calix [4]arenes, 11,12 phosphate amino calix [4]arenes and those containing mixed pendant arms. 13,14 In most cases we have reported the thermodynamics associated with the complexation process. Without attempting to undermine the useful contributions made by investigations related to the extraction of heavy metal cations by calix [4]arene receptors, it is important to highlight the distinction between 'selective extraction' and 'selective ionic recognition' by receptors.…”