Hexameric Silver(I) Pyrazolate: Synthesis, Structure, and Isomerization
作者:Xing-Pu Lv、Dong-Hui Wei、Guang Yang
DOI:10.1021/acs.inorgchem.7b01717
日期:2017.9.18
The first binary hexameric silver(I) pyrazolate (Ag6pz6) has been prepared, and X-ray analysis demonstrated that it takes a rare figure-eight shape (pz– = deprotonated tert-butyl 3,5-diphenyl-1H-pyrazole-4-carboxylate). The hexamer can be easily converted to its tetrameric isomer (Ag4pz4) by recrystallization from ether. On the basis of the 1H NMR and mass spectrometry measurements, it is conjectured
制备了第一个二元六聚吡咯银(I)吡咯银(Ag 6 pz 6),X射线分析表明它具有稀有的八字形(pz – =去质子化的叔丁基3,5-二苯基-1 H -吡唑-4-羧酸盐)。通过从醚中重结晶,六聚体可以容易地转化为其四聚体异构体(Ag 4 pz 4)。根据1 H NMR和质谱测量结果,推测六聚体溶解在CHCl 3中后,迅速与Ag 4 pz 4和Ag 3 pz 3达到平衡。,平衡点位于较小环的一侧。