Premium
Synthesis and Characterization of Tris(bidentate) Ruthenium Complexes of Di(pyrid‐2‐yl)(methyl)amine
Author(s) -
Wu SiHai,
Shao JiangYang,
Dai Xiaojuan,
Cui Xiuling,
Su Hongmei,
Zhong YuWu
Publication year - 2017
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201700291
Subject(s) - chemistry , denticity , ruthenium , amine gas treating , tris , ligand (biochemistry) , crystallography , density functional theory , electrochemistry , crystal structure , redox , stereochemistry , medicinal chemistry , inorganic chemistry , computational chemistry , catalysis , organic chemistry , electrode , biochemistry , receptor
Three tris(bidentate) monoruthenium complexes [Ru(dpma)(bpy) 2 ](PF 6 ) 2 [ 1 (PF 6 ) 2 ; dpma = di(pyrid‐2‐yl)(methyl)amine, bpy = 2,2′‐bipyridine], [Ru(dpma) 2 (bpy)](PF 6 ) 2 [ 2 (PF 6 ) 2 ], and [Ru(dpma) 3 ](PF 6 ) 2 [ 3 (PF 6 ) 2 ] with the electron‐rich ligand dpma were synthesized and characterized. The single‐crystal X‐ray structures of 1 (PF 6 ) 2 to 3 (PF 6 ) 2 are presented. The electrochemical and spectroscopic properties of these complexes were examined and compared with those of the reference complex [Ru(bpy) 3 ](PF 6 ) 2 . Complexes 1 (PF 6 ) 2 to 3 (PF 6 ) 2 show a decreased Ru III/II redox potential by 140–310 mV with respect to [Ru(bpy) 3 ](PF 6 ) 2 . The strong emission property of [Ru(bpy) 3 ](PF 6 ) 2 is maintained in 1 (PF 6 ) 2 and 2 (PF 6 ) 2 . However, complex 3 (PF 6 ) 2 is only weakly emissive at room temperature. In addition, density functional theory (DFT) and time‐dependent DFT calculations were performed to complement these experimental results.