Formation of mono- and di- nuclear complexes of Zn2+ from a 26 membered tetraester crown of 3,5-disubstituted pyrazole able to act as neutral and dianionic ligand
作者:Carmen Acerete、José M. Bueno、Lucrecia Campayo、Pilar Navarro、M.Isabel Rodriguez-Franco、André Samat
DOI:10.1016/s0040-4020(01)85015-8
日期:1994.4
performed. Its deprotonation pKa values, and those of the acyclic analogues (3–5) have been measured. The disodium dipyrazolate salt of 1 (2, [L2]2- 2Na+) has been isolated, and mono- and di- nuclear complexes of Zn2+ obtained from 1 ([L1Zn]2+) and 2 ([L2Zn2]2+) have been studied by 13C NMR spectroscopy in DMSO-d6 solution.
已经进行了双(3,5-二酮-1H-吡唑)-[26]冠-12(1,L 1)的选择性合成。其去质子化PK一个值,以及那些无环类似物(的3 - 5)进行了测量。的二dipyrazolate盐1(2,[L 2 ] 2- 2Na盐+)已被分离,和单-和Zn的二核配合物2+从获得的1([L 1的Zn] 2+)和2([ L 2 Zn 2 ] 2+)已通过在DMSO-d 6溶液中的13 C NMR光谱。