as well. Like 3, complex 4·Me2CO·3EtOH has a bent sandwich geometry. The complex is characterized also by the presence of H-bonds between two oxygen atoms of the coordinated sulfate anion and two ethanol molecules. The synthesized sandwich compounds 2, 3 and 4·Me2CO·3EtOH are the novel structural type of complexes of an anticrown with nitrate and sulfate anions as well as the first examples of structurally
三
汞anticrown的相互作用(Ô -C 6 ˚F 4
汞柱)3(1)与[P
PN] NO 3和[PPH 4 ] NO 3在
乙醇溶液中的产率
硝酸盐络合物,[P
PN] [(ø - C 6 F 4 Hg)3 ] 2(NO 3)}(2)和[PPh 4 ] [(o -C 6 F 4 Hg)3 ] 2(NO 3)}(3)分别具有双层三明治结构。在这两种加合物,所述
硝酸根阴离子表现为三齿
配体,并且通过氧原子与每个anticrown单元的一个中的
汞站点协调一致η 3:η 1分的方式。然而,尽管配合物3构成晶体中的弯曲夹心,但是配合物2中反冠分子的平面彼此平行。的反应1与[PhNMe 3 ] 2所SO 4所导致
硫酸盐复合物的形成,[PhNMe 3 ] 2 - [(ø -C 6 ˚F 4Hg)3 ] 2(SO 4)}(4),然后从
丙酮/
乙醇混合物中重结晶,生成溶剂化物4 ·Me 2 CO·3EtOH,根