8-Quinoline based ligands and their metallic derivatives: A structural and statistical investigation of quinoline π–π stacking interactions
作者:Radu F. Semeniuc、Thomas J. Reamer、Mark D. Smith
DOI:10.1039/b9nj00547a
日期:——
1) the dimers undergo further self-assembly into higher dimension architectures, based either on π–π stacking interactions alone (L) or on combined π–π stacking/C–H⋯π interactions of the quinoline and pyrazolyl groups (1). A geometrical and statistical analysis has also been performed on π–π stacking in metal complexes of quinoline based ligands, by carrying out a Cambridge Structural Database search
新的配体 8-磺酰基-(1-吡唑基)-喹啉(C 9 H 6 N–SO 2 -pz,L),它在一个分子中结合了两个具有供体性质的不同芳环(通过磺酰基桥被吡唑基环官能化的喹啉部分)并在两种溶液中进行了表征和固态。L与AgO 3 SCF 3(OT)和AgBF 4形成离散化合物(C 9 H 6 N–SO 2 -pz)2 AgO 3 SCF 3(1)和(C 9 H 6 N–SO 2 -pz)2 AgBF 4(2)。在所有情况下,均基于相似的关联算法观察到超分子缔合,涉及喹啉构造的π-π叠加。相对于喹啉部分而言,吡唑基环存在于适当的位置,这使得在芳环之间可能存在额外的C–H⋯π相互作用。这些相互作用在所有情况下都会生成二聚体,在两种情况下(L和化合物1),基于单独的π-π堆积相互作用(L)或组合的π-π堆积/喹啉与C ofH⋯π相互作用吡唑基组(1)。通过进行剑桥结构数据库搜索,还对基于喹啉的配体的金