Syntheses and Properties of Symmetrical Cage Compounds, in which All Six, Eight or Ten Lone Pairs on Nitrogen Atoms at Bridgehead or Intervening Pyridine Rings are Oriented toward the Central Cavity.

合成了桥头氮原子上的6个、8个或10个孤子对全部朝向中心空腔的三维化合物，其中6个苯环、4个或全部6个环被吡啶环取代作为碱金属化合物。络合能力随着中间吡啶环数目的增加而增强。二甲亚甲基四(2，6-己二烯)毒鼠强的初步X射线分析。KC104络合物表明K~(++)离子位于密室的中央空腔中。

Three dimensional Cryptands, in which all six, eight or ten lone pairs on nitrogen atoms at bridgehead or intervening pyridine rings are oriented toward the central cavity, were synthesized.The compounds, in which of the six benzene rings, four or all six rings are replaced by the pyridine rings, were obtained as their alkali metal cryptates. Complexation ability was enhanced by increasing number of intervening pyridine rings.Preliminary X-ray analysis of dimetaxylylenetetra(2,6-lutidylene)tetramine. KC10 4 complex shows that K^+ ion locates in the central cavity of the cryptand.