The organic imine and their metal complexes were synthesized and characterized by IR, UV and NMR. The third order non linear optical properties of the compounds were investigated. The measurements of second hyperpolar...The organic imine and their metal complexes were synthesized and characterized by IR, UV and NMR. The third order non linear optical properties of the compounds were investigated. The measurements of second hyperpolarizabilites were performed using single beam Z-scan technique with 8 ns laser pulses. Ligand and its Copper, Zinc and Nickel complexes show good third order non linearity whereas Manganese complex did not show any activity.展开更多
A dipodal N-acyl hydrazone receptor(R1)was synthesized in a single step,and utilized as a test probe for the selective sensing of metal ions as well as anions.Upon the exposure to various metal ions,R1 displays rapid ...A dipodal N-acyl hydrazone receptor(R1)was synthesized in a single step,and utilized as a test probe for the selective sensing of metal ions as well as anions.Upon the exposure to various metal ions,R1 displays rapid colorimetric and absorption changes in the presence of Co^(2+),Ni^(2+),Cu^(2+)and Zn^(2+)ions.However,R1 shows a selective fluorescence response only in the presence of Zn^(2+)ions and no other metal ions showed obvious changes.In particular,zinc acetate showed higher sensitivity over other zinc sources.Upon the binding of Zn^(2+)ions with R1,the colorless solution changed into fluorescent yellow color accompanied by the conversion of the non-fluorescence nature into the highly fluorescence nature.展开更多
文摘The organic imine and their metal complexes were synthesized and characterized by IR, UV and NMR. The third order non linear optical properties of the compounds were investigated. The measurements of second hyperpolarizabilites were performed using single beam Z-scan technique with 8 ns laser pulses. Ligand and its Copper, Zinc and Nickel complexes show good third order non linearity whereas Manganese complex did not show any activity.
文摘A dipodal N-acyl hydrazone receptor(R1)was synthesized in a single step,and utilized as a test probe for the selective sensing of metal ions as well as anions.Upon the exposure to various metal ions,R1 displays rapid colorimetric and absorption changes in the presence of Co^(2+),Ni^(2+),Cu^(2+)and Zn^(2+)ions.However,R1 shows a selective fluorescence response only in the presence of Zn^(2+)ions and no other metal ions showed obvious changes.In particular,zinc acetate showed higher sensitivity over other zinc sources.Upon the binding of Zn^(2+)ions with R1,the colorless solution changed into fluorescent yellow color accompanied by the conversion of the non-fluorescence nature into the highly fluorescence nature.
