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RISThe Effect of Magnetic Feild on the stability of (Kryptofix22DD)complexes with Ytrium Ion
Crown compounds are ligsands with selectivity for metal ions....
A Convenient Synthesis of Azobenzo-Crown Ethers
Azobenzo-Crown Ether with 10-16 ring size were synthesized...
Synthesis and application of new Schiff base Mn(III) complexes containing crown ether rings as catalysts for oxidation of cyclohexene and cyclooctene by Oxone
Six catalysts MnClL1–MnClL6, containing two crown ether rings, were synthesised and characterised by IR spectroscopy and CHN microanalysis. A combination of Oxone, as oxidant, and these catalysts was used for the oxidation of cyclohexene...
study of complex formation between 15-crown5 with Fe3+
conductance measurements of an electrolyte soloution in presence of crown compound provide valuable prices of information. the frist is detection of complexation between the crown compound and the cation...
Glycoluril-derived crown clips as new ditopic receptors
crown ether moiety....
Construction of Ion selective electrode for Yttrium(III) Based on Dibenzo-18-crown-6
for measuring the yttrium(III) ion activity by using dibenzo-18-
crown-6 in aqueous solutions.Dibenzo-18-crown-6 (DB18C6) 3% has been used as membrane carrier (ionophore), nitrobenzene (NB) as plasticizer 65%,
sodium tetraphenyl borate...
AConductometric study of complexation reaction between benzo-15- crown-5 and Al3+ cation in some pure and binary mixed non- aqueous solvents
The complexation reaction between the macrocyclic ligand, benzo- 15- croun-5 (B15C5) with Al3+ cation was studied in pure methanol (MeOH), propanol (PrOH), methylacetate (MeOAc), ethylacetate (EtOAc) and their binary mixed ...
Selective Bulk Liquid Membrane Transport of Metal ions Using Dibenzopyridinio-18-Crown-6 (DBPY18C6) as Ionophore
, dibenzopyridinio-18-crown-6 (DBPY18C6) as an ionophore and the aqueous receiving phase consisted of a buffer solution (HCOOH/HCOONa) at pH=3. The obtained results show that dibenzopyridinio-18-crown-6 is a highly selective ionophore for silver ion and under...
Lead (II)-selective coated graphite electrode based on benzo-18-crown-6
A lead (II)-selective coated graphite electrode based on benzo-18-crown-6 was prepared....
Microwave-assisted fast and efficient synthesis of some crown ethers
13-Crown-4, 16-crown-5, dibenzo-12-crown-4 and dibenzo-14-crown-4 were synthesized by a one-pot microwave-assisted
procedure in good yields. Irradiation of diols and dichlorides in the presence of sodium hydroxide in DMSO gave title crown...