作者:Naseem Qureshi、Dmitry S. Yufit、Judith A. K. Howard、Jonathan W. Steed
DOI:10.1039/b905555j
日期:——
X-ray crystal structures of [Ag(L)]X (X = CH(3)CO(2)(-), 1; NO(3)(-), 2). The non-coordinating PF(6)(-) anion is not bound as an ion-pair in [Ag(L)](PF(6)) (3) and the urea NH groups exhibit short contacts to carbonyl oxygen and pi-systems. The X-ray crystal structure of [Ag(L)(4)]BF(4) (4) is also reported, showing the ligand to be exclusively S-bound. Anion binding by L and its silver(I) complex is
报道了能够通过吡啶基氮原子或硫醚硫供体结合金属离子的简单的双齿配体1-(3-甲基硫烷基-苯基)-3-吡啶-2-基-脲(L)的合成。吡啶基官能团位于与阴离子结合脲基团相邻的位置,从而允许配体的该区域通过同时的配位和氢键相互作用来结合接触离子对。[Ag(L)] X的X射线晶体结构证明了这种紧密的离子对结合配位模式(X = CH(3)CO(2)(-),1; NO(3)(-), 2)。非配位的PF(6)(-)阴离子未在[Ag(L)](PF(6))(3)中作为离子对结合,尿素NH基团与羰基氧和pi-短接触系统。还报道了[Ag(L)(4)] BF(4)(4)的X射线晶体结构,表明该配体仅与S结合。