Despite their structural similarity, triangular tetradentate ligands 2b and 2c experience different assembly pathways on complexation with (en)Pd(NO3)2 to give M8L4 tetrahedral (3) and open cone (4) structures, respectively, due to steric restriction by side chains at the corner or on the edge of the ligands.
尽管结构相似,但三角形四齿
配体2b和2c在与(en)Pd(
NO3)2络合时,由于
配体角或边缘上的侧链空间限制,分别经历了不同的组装途径,形成了M8L4四面体结构(3)和开放锥形结构(4)。