Synthesis and structures of ligand-dominated one-dimensional silver(I)-bis(pyridylmethyl)amine coordination chains

详细信息    查看全文

• 作者：Hung-Jui Lin^a ; Yu-Chiao Liu^b ; Yu-Jui Tseng^a ; Jing-Yun Wu^a ; ^{jyunwu@ncnu.edu.tw" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Bis-pyridyl ligand ; Coordination polymer ; Silver ; Slow diffusion ; Zipper-like
• 刊名：Journal of Solid State Chemistry
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：242
• 期：part_P1
• 页码：253-260
• 全文大小：1738 K

文摘

Reactants slow diffusion of Ag(I) salts with 3,4′-bis(pyridylmethyl)amine (3,4′-bpma), an unsymmetric bis-pyridyl ligand equipped with a non-innocent amine backbone, afforded polymeric coordination adducts 1–5 having a general formula {[Ag(3,4′-bpma)(solv)]X}_n (solv = H₂O, CH₃OH, and none; X= CF₃CO₂^–, BF₄^–, ClO₄^–, CF₃SO₃^–, and SbF₆^–). Single-crystal X-ray diffraction (SCXRD) analyses reveal that colorless crystals of Ag(I) coordination polymers (CPs) 1–5 have very similar one-dimensional (1D) non-flat chain structures, which are preferentially depicted as a “zipper-like” rather than a ladder-like or a double-stranded chain topologies. The 3,4′-bpma ligand in these Ag(I) CPs displays a μ₃-bridging mode with a gauche–trans (1,4, and 5) and a trans–trans (2 and 3) conformations. Noteworthy, anions do not show strong influence on structural modulation of Ag(I) CPs in the solid state, but really affect CP conformations and packing fashions, indicative of a ligand-dominated assembly process for such a Ag(I)–3,4′-bpma system. Thermal stabilities and solid-state photoluminescence properties of crystalline materials 1–5 were investigated.