Supramolecular frameworks constructed from angular-shaped sulfonyldipyrazine and various silver(<scp>i</scp>) salts
作者:Chong-Qing Wan、Thomas C. W. Mak
DOI:10.1039/c0nj00631a
日期:——
polymeric motifs with various silver(I) salts, such as the infinite chain structure of [Ag3(L)(NO2)3]∞, (4,4) net of isomorphous [Ag(L)](ClO4)}∞ and [Ag(L)(NO3)]∞, and three-dimensional frameworks of [Ag(L)(CF3SO3)]∞ and [Ag(L)(CF3CO2)]∞. In these complexes, sulfonyldipyrazine exhibits flexible ligation modes with its pyrazinyl N atoms bound to adjacent metal centers. The electron-deficient pyrazinyl
新型角形多齿配体 磺酰哒嗪(缩写为L)能够与各种银(I)盐形成多样的配位聚合物基序,例如[Ag 3(L)(NO 2)3 ] ∞的无限链结构,(4,4)同构网[Ag(L)](ClO 4)} ∞和[Ag(L)(NO 3)] ∞以及[Ag(L)(CF 3 SO 3)] ∞和[Ag(L )(CF 3 CO 2)] ∞。在这些情结中磺酰哒嗪吡嗪基N原子与相邻的金属中心键合,具有灵活的连接方式。弯曲处缺电子的吡嗪基环和磺酰基为这些化合物的超分子组装中的非常规相互作用(例如阴离子-π(吡嗪基)和S O⋯π(吡嗪基)相互作用)提供了额外的键合位点。