2016
DOI: 10.1021/acs.cgd.5b01544
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Role and Effect of Anions in the Construction of Silver Complexes Based on a Pyridylimidazole Ligand with L-Type Coordination Vectors and Their Photoluminescence Properties

Abstract: Three anion-dependent Ag(I) coordination complexesspecifically, [Ag 2 (pyim) 2 (NO 3 ) 2 ] (1), {[Ag(pyim) 2 ]• ClO 4 •CH 3 OH•(H 2 O) 1.25 } n (2), and [Ag 4 (pyim) 4 ]•(CF 3 SO 3 ) 4 ( 3)were prepared by the reaction of the corresponding silver salts with a rigid ditopic N-terphenyl-substituted 2-(4-pyridyl)imidazole (pyim) ligand possessing an "L"-type coordination vector. Complex 1, in which the nitrate anion acts as a monodentate terminal ligand, exhibits a discrete cyclic dimer structure, whereas compl… Show more

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Cited by 27 publications
(14 citation statements)
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“…1, the Ag I atom is coordinated by two pyridine N atoms and two imidazole N atoms from four individual i-pro-pyim ligands, giving rise to a highly distorted tetrahedral geometry with bond angles falling in the range of 100.33 (19)-122.76 (19) ( Table 1). The average Ag-N distance is 2.31 Å , similar to that found in the related perchlorate salt (Lee et al, 2016).…”
Section: Structural Commentarysupporting
confidence: 76%
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“…1, the Ag I atom is coordinated by two pyridine N atoms and two imidazole N atoms from four individual i-pro-pyim ligands, giving rise to a highly distorted tetrahedral geometry with bond angles falling in the range of 100.33 (19)-122.76 (19) ( Table 1). The average Ag-N distance is 2.31 Å , similar to that found in the related perchlorate salt (Lee et al, 2016).…”
Section: Structural Commentarysupporting
confidence: 76%
“…However, there are relatively few reports of the structures of metal complexes that exhibit coordination of pyridylimidazole (pyim) ligands with an L-type coordination sphere, which is similar to a phenylimidazole system. Recently, Ag I coordination polymers built from pyim ligands have attracted much attention due to their structural diversity and photoluminescence properties which have been shown to depend on the nature of the counter-anion (Lee et al, 2016). The structural topology of Ag I is quite sensitive to both the counter-anion and solvent molecules (Durá et al, 2014).…”
Section: Chemical Contextmentioning
confidence: 99%
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“…On the basis of such consideration, we selected N ‐terphenyl‐substituted 2‐(4‐pyridyl)imidazole (pyim) with two orthogonal binding sites as a “L”‐type ligand. Our group has recently reported that the supramolecular motives, cyclic dimer and tetramer, and looped‐chains are generated by the control of counter‐anions possessing different coordination abilities in the reaction of pyim with several silver salts . Herein, we report a fascinating, infinite meso ‐helical Ag(I) coordination polymer based on “L”‐type pyim ligand (Scheme ).…”
Section: Methodsmentioning
confidence: 99%