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31.
0IntroductionInthepastfewyears,themolecular-basedmag-neticpropertiesofheteronuclearcomplexessimultane-ouslycomprisinglanthanideandtransitionmetalionshaveattractedincreasinginterest犤1～6犦.Inourlaborato-ry,wehavesynthesizedsuchtypeofcomplexeswithdifferentcarboxylicbridgingligands犤7～10犦.Asanex-tensionofthisresearcharea,ourpresentworkaimstosynthesizenovelcomplexesofrareearthandtransi-tionmetalbyusingoroticacidasabridgingligand.Inthecourseofourinvestigationtwonewcomp-lexesof犤Cu(C5H2N2O4)(H… 相似文献
32.
Reaction of HgCl2 and double betaine ligands in water at about 80 ℃ yielded two new Hg(Ⅱ) complexes,[Hg(L1)Cl2]·H2O 1 and [Hg2(L2)Cl4]·3HgCl2 2(L1 = 1,3-bis(pyridinio-4-carboxylato)-propane,L2 = 1,4-bis(pyridinio-4-carboxylato)-1,4-dimenthylbenzene).Their struc-tures have been characterized by single-crystal X-ray diffraction techniques.The structure of 1 contains 1-D chains,in which the adjacent Hg(Ⅱ) atoms are bridged by L1 ligands in a syn-syn bis-monodentate mode.The chains are further connected through face-to-face π-π stacking interactions between pyridine rings to generate an infinite double-chain network.In 2,two Hg(Ⅱ) atoms are joined by L2 ligands in the same coordination mode as 1 to form an isolated dinuclear structure.The thermal stabilities of both complexes have also been investigated. 相似文献