One Novel Ag(Ⅰ) Compound Generated from Double Schiff-base Ligand with Quinoxaline-N-oxide as Terminal Binding Sites

• 来源期刊: 结构化学
• 年，卷（期）: 2021,（3）
• 所属期刊栏目: coordination chemistry
• 页码范围: 301-305
• 页数: 5页
• 语种: 英文
• DOI: 10.14102/j.cnki.0254-5861.2011-2843

摘要

One novel discrete coordination molecule with AgⅠ centers,namely[Ag3(L)3(ClO4)3]·3CH2Cl2·6CH3OH·1.5H2O (1),has been synthesized based on the double Schiff-base ligand,3,6-bis[2-(4-oxide-quinoxaline)-yl]-4,5-diaza-3,5-octadiene (L) and AgClO4.The obtained Ag(Ⅰ) compound was fully characterized by infrared spectroscopy,elemental analysis,and single-crystal X-ray diffraction.1 is of trigonal system space group P-31c with a =16.320(2),b =16.320(2),c =20.108(6) (A),T=173(2) K,V=4638.2(16) (A)3,Dc=1.645 g/cm3,Mr=2297.33,Z =2,F(000) =2334,μ =0.970 mm-1,Goodness-of-fit =1.109,the final R =0.0776,wR =0.1813,R indices (all data) =0.1196,wR =0.2011.The compound exhibits a triple-helical[Ag3L3]3+ crown-like trimer,in which three Ag(Ⅰ) atoms form an equilateral triangle with the Ag…Ag distance of 4.7 (A).Uncoordinated counterions ClO4-and solvent molecules methanol generate the hydrogen-bonded frameworks based on discrete molecular complex building blocks.