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Unformatted text preview: in 1983 and being used widely over the years. This is due to its better detections compare to an elemental analysis technique like atomic absorption, mass spectrometer until part per trillion levels. Its application is more to analysis in field like drinking water, wastewater, hydrogeology, and geology and soil science like detection in rare - earth elements. Direct comparison between GC-ICP-MS and HPLC-ICP-MS in determination of tributhyltin (TBT) in sediment showed that GC -ICP-MS offers a greater sensitivity in detection limit. Therefore, a series of thienyl tetraorganotin compounds such as tetrakis(2thienyl)tin(IV), tetrakis(5-methyl-2-thienyl)tin(IV), tetrakis(4-methyl-2-thienyl)tin(IV), triphenyl(2thienyl)tin and their homolog series were prepared and analyzed by using GC-ICP-MS technique so as to extend the analysis to other types of organotin compounds. 135 23rd-25th June 2010 3rd ICYC 2010 Universiti Sains Malaysia INO-P7 SYNTHESIS AND CHARACTERISATION OF NEW COPPER(II) COMPLEXES WITH 1,4,8,11TETRAAZACYCLOTETRADECANE AND ISOMERIC C15H31COO LIGANDS Nur Syamimi Ahmad Tajidi, Norbani Abdullah, Zainudin Arifin and Edward R.T. Tiekink Chemistry Department, Science Faculty, University of Malaya, 50603 Kuala Lumpur E-mail: firstname.lastname@example.org Two new mononuclear isomeric copper(II) complexes, namely (1,4,8,11 tetraazacyclotetradecane)bis(hexadecanoato)copper(II) (1) and (1,4,8,11tetraazacyclotetradecane)bis(2-hexyldecanoato)copper(II) (2) were obtained in a facile synthesis from the reaction of 1,4,8,11-tetraazacyclotetradecane and tetrakis(hexadecanoato)dicopper(II) ([Cu2(CH3(CH2)14COO)4]) and tetrakis(2-hexyldecanoato)dicopper(II) ([Cu 2(CH3(CH2)7CH[(CH2)5CH3]COO)4]) respectively. The isomers have distinctly different physical properties: the linear isomer is a purple single crystal while the branched isomer is an intense purple viscous liquid. TGA and DSC indicate that both complexes are thermally stable up to about 300 °C. Single crystal X-ray crystallography shows that 1 is “ionic”, while the C,H,N elemental analyses for 2 indicates the complex is solvated by five ethanol molecul...
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