| Two resorcin[4]arene-based tetracarboxylic acid ligands were synthesized,namely,2,8,14,20-tetra-ethyl-4,10,16,22-tetrakis??3-carboxybenzyl?oxy?-6,12,18,24-tetra-methoxy-res orcin[4]arene?H4L1?and 2,8,14,20-tetra-phenyl-4,10,16,22-tetrakis??3-carboxybenzyl?oxy?-6,12,18,24-tetra-methoxy-resorcin[4]aren e?H4L2?.Based on the two ligands and 1,4,8,11-tetraazacyclotetradecane?cyclam?,five coordination polymers were synthesized by solvothermal methods,namely,[Cu2?L1??cyclam?2]·2H2O?1?,[Ni2?L1??cyclam?2]·6H2O?2?,[Cu2?L2??cyclam?2]·6H2O?3?,[Mn2?L1??H2O?3]·2DMF·5H2O?4?and [??2NH2][Cd3?L1??HL1??DMF?2?H2O?3]·DMF·5H2O?5?.The single crystal structure of these compounds 1-5 was determined by an X-ray single crystal diffractometer.In compounds 1-3,L1 or L2anions bridge Ni?II?or Cu?II?ions to form a chain structure.In compound 4,two pairs of symmetrically related Mn?II?ions are joined together by carboxyl groups to generate a tetranuclear Mn?II?cluster,which is further linked by L1 anions to give a one-dimensional chain structure.In compound 5,adjacent Cd?II?ions are bridged by L1 and HL1 to yield a three-dimensional framework structure.The compounds were characterized by IR spectra.The solid UV absorption spectra of compounds 1,4 and 5 were measured.The fluorescent sensing property of small organic molecules was studied for 5. |
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