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

作　　者：WANG Dong-Xiao WANG Peng CHENG Jun-Yan 王东晓;王鹏;程军妍(College of Chemistry,Chemical Engineering and Materials Science,Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong,Key Laboratory of Molecular and Nano Probes,Ministry of Education,Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals,Shandong Normal University,Jinan 250014,China;College of Chemical and Biological Engineering,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]College of Chemistry,Chemical Engineering and Materials Science,Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong,Key Laboratory of Molecular and Nano Probes,Ministry of Education,Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals,Shandong Normal University,Jinan 250014,China [2]College of Chemical and Biological Engineering,Shandong University of Science and Technology,Qingdao 266590,China

出　　处：《Chinese Journal of Structural Chemistry》2021年第3期301-305,271,共6页结构化学（英文）

基　　金：supported by grants from NSFC(Nos.21671122 and 21475078)。

摘　　要：One novel discrete coordination molecule with Ag^(I) centers,namely[Ag_(3)(L)_(3)(ClO_(4))_(3)]·3CH_(2)Cl_(2)·6CH_(3)OH·1.5H_(2)O (1),has been synthesized based on the double Schiff-base ligand,3,6-bis[2-(4-oxidequinoxaline)-yl]-4,5-diaza-3,5-octadiene (L) and AgClO_4.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)?,T=173(2) K,V=4638.2(16) A^(3),D_(c)=1.645 g/cm^(3),M_(r)=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,Rindices (all data)=0.1196,wR=0.2011.The compound exhibits a triple-helical[Ag_(3)L_(3)]^(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 ClO_(4)^(–) and solvent molecules methanol generate the hydrogen-bonded frameworks based on discrete molecular complex building blocks.

关 键 词：crystal structure double Schiff-base ligand discrete coordination compound hydrogen bond 

分 类 号：O641.4[理学—物理化学]