Guan Lei, Wang Ying, Jin Hongzhe, Yin Pengpeng
Liaoning Petrochemical University, Fushun, Liaoning 113001, People's Republic of China.
IUCrJ. 2023 Nov 1;10(Pt 6):671-677. doi: 10.1107/S2052252523007650.
Five coordination polymers [TM(absa)(HO)] and [TM(absa)(bipy)(HO)] [TM = Zn (1), Co (2); TM = Zn (3), Co (4), Cu (5); Naabsa = 5,5'-azobissalicylic acid disodium salt; bipy = 4,4'-bipyride] were synthesized by solvent evaporation under a magnetic field. It is evident that magnetic fields bring significant and noticeable changes to the absa ligand orientation and the component movement behaviors to construct coordination polymers. The absa ligands bind to the metal ions in bridging coordination mode through the carboxylate groups, in addition to the bipy molecules adopting bridging modes. Photoluminescence measurements indicate that the emissions of compounds 1-5 are at 626, 600, 632, 658 and 682 nm in the solid state, respectively.
通过在磁场下溶剂挥发法合成了五种配位聚合物[TM(absa)(HO)]和[TM(absa)(bipy)(HO)] [TM = Zn (1)，Co (2)；TM = Zn (3)，Co (4)，Cu (5)；Naabsa = 5,5'-偶氮双水杨酸二钠盐；bipy = 4,4'-联吡啶]。显然，磁场对absa配体取向和构建配位聚合物的组分运动行为带来了显著且明显的变化。除了联吡啶分子采用桥连模式外，absa配体通过羧酸根基团以桥连配位模式与金属离子结合。光致发光测量表明，化合物1 - 5在固态下的发射波长分别为626、600、632、658和682 nm。
