Département de Chimie, Université de Montréal, Montréal, Québec H3C 3J7, Canada.
Inorg Chem. 2011 Jun 20;50(12):5605-18. doi: 10.1021/ic2003047. Epub 2011 May 18.
The pyridinyl groups of pyridinyl-substituted diaminotriazines 3a,b and 4a,b can bind metals, and the diaminotriazinyl (DAT) groups serve independently to ensure that the resulting complexes can participate in intercomplex hydrogen bonding according to characteristic motifs. As planned, ligands 3a,b and 4a,b form trans square-planar 2:1 complexes with PdCl(2), and further association of the complexes is directed in part by hydrogen bonding of the DAT groups. Similarly, ligands 3a,b and 4a,b form cationic square-planar 4:1 complexes with Pd(BF(4))(2), Pd(PF(6))(2), and Pd(NO(3))(2), and the complexes again typically associate by hydrogen bonding of the peripheral DAT groups. The observed complexes have predictable constitutions and shared structural features that result logically from their characteristic topologies and the ability of DAT groups to engage in hydrogen bonding. These results illustrate the potential of a hybrid inorganic/organic strategy for constructing materials in which coordinative bonds to metals are used in conjunction with other interactions, both to build the molecular components and to control their organization.
吡啶基取代的二氨基三嗪 3a,b 和 4a,b 的吡啶基可以与金属结合，而二氨基三嗪基（DAT）基团则独立地确保了所得到的配合物能够根据特征模式参与配合物间氢键。正如计划的那样，配体 3a,b 和 4a,b 与 PdCl(2) 形成反式正方形平面 2:1 配合物，配合物的进一步缔合部分受到 DAT 基团氢键的指导。同样，配体 3a,b 和 4a,b 与 Pd(BF(4))(2)、Pd(PF(6))(2)和 Pd(NO(3))(2) 形成阳离子正方形平面 4:1 配合物，并且配合物再次通过外围 DAT 基团的氢键典型地缔合。观察到的配合物具有可预测的组成和共享的结构特征，这些特征是由其特征拓扑结构和 DAT 基团与氢键结合的能力合理产生的。这些结果说明了将配位键与金属结合并与其他相互作用相结合的混合无机/有机策略构建材料的潜力，这些相互作用既能构建分子组件又能控制其组织。
