Synthesis, coordination properties, and analytical applications of mixed donor macrocycles containing the 1,10-phenanthroline sub-unit

Spectroscopic studies of charge-transfer complexation of iodine with a new benzo-substituted macrocyclic diamide in chloroform, dichloromethane and their 1:1 mixture

“…E-mail: mshamsipur@yahoo.com appears to be related to the macrocycles , cavity sizes; it is at maximum when the cavity diameter matches the ionic size. The substitution of some oxygen atoms of the crown ethers by -NH-, and -S-groups has found to alter their complexing ability towards different metal ions [4]. During the past two decades, a growing interest has been focused on the complexing ability of these macrocyclic ligands as electronpair molecules towards neutral and electron accepting molecules [5][6][7][8][9][10][11][12][13][14][15][16] and, especially, molecular iodine [17][18][19][20][21][22][23][24][25][26][27][28].…”

Lead-selective poly(vinyl chloride) electrodes based on some synthesized benzo-substituted macrocyclic diamides

“…It is well-known that sensitivities and selectivities obtained for a given ionophore depend significantly on the membrane ingredients and nature of solvent mediators and additives used [25][26][27][28]. Thus, we investigated the influence of membrane composition on the potential response for lead sensor.…”

“…Because macrocyclic ligands can form selective and stable complexes with metal ions of compatible dimensions [22,23], and can potentially be applied to their selective separation and determination [1,24,25] continuous interest has been focused on the design and synthesis of new functionalized macrocycles for specific application [26]. Several macrocyclic diamides prepared from salicylaldehade derivatives and appropriate diamino compounds [27] have been reported to have successful use as ion carriers in the construction of PVC-based ion-selective electrodes for Ag + [28] Ca 2+ [29], Cs + [30] and Sr 2+ ions [31].…”

Novel PVC-membrane potentiometric sensors based on a recently synthesized sulfur-containing macrocyclic diamide for Cd2+ ion. Application to flow-injection potentiometry

“…During the past two decades, an extensive effort has been made in the synthesis and characterization of neutral ionophores possessing high selectivities for specific metal ions to develop new potentiometric and optical sensors for the determination of the respective metal ions in real samples [1][2][3]. The design and synthesis of new functionalized macrocyclic ligands for specific analytical applications has been the subject of continuous recent interest [3][4][5].…”

“…The design and synthesis of new functionalized macrocyclic ligands for specific analytical applications has been the subject of continuous recent interest [3][4][5]. The in-built configuration rigidity induced by N-substituted amides present in periphery of benzomacrocycles invokes preorganization leading to ionophoric selectivity [6][7][8].…”