Syntheses, structures and photoluminescence of two Dawson-based hybrid materials with polynuclear silver clusters

Construction of Coordination Polymers from Semirigid Ditopic 2,2′-Biimidazole Derivatives: Synthesis, Crystal Structures, and Characterization

“…It has to be pointed out that fluorescence emission of both L1 and L2 in the solid state depends on excitation wavelength and possesses additional emission peaks in the UV range (see Supporting Information for fluorescence excitation–emission matrices). Similar dual fluorescence can be seen in the literature for biim and its dimethyl derivatives in the solid state. A detailed study of the nature of such luminescent properties of L1 and L2 requires a comprehensive analysis that is beyond of the scope of this work.…”

“…It has to be pointed out that fluorescence emission of both L1 and L2 in the solid state depends on excitation wavelength and possesses additional emission peaks in UV range (see ESI for fluorescence excitationemission matrices). Similar dual fluorescence can be seen in literature for biim56 and its dimethyl derivatives 57 in the solid state. A detailed study of the nature of such luminescent properties of L1 and L2 requires a comprehensive analysis that is beyond of the scope of this work.Silver-based CPs, 1 and 2b do not display any detectable fluorescence but exhibit intense phosphorescence with emission maxima at 490 nm (excitation at 280 nm) for 1, and at 465 nm (excitation 250 nm) for 2b.…”

Development of polyoxometalate-based Ag-H2biim inorganic–organic hybrid compounds functionalized for the acid electrocatalytic hydrogen evolution reaction

“…The crystal data and refinement parameters are summarized in Table S1 )]•2H 2 O} n shows the same structure as that reported in the literature studies. 31,32 Its fundamental unit is composed of one Dawson-type polyoxoanion P 2 W 18 , two K + , two [Ag 2 (H 2 biim) 2 ] 2+ cations and two crystal water molecules. The adjacent P 2 W 18 anions are bridged by two [Ag 2 (H 2 biim) 2 ] 2+ cations to form an infinite 1D chain (Fig.…”

Syntheses, structures, and luminescence of two Zn(II) coordination polymers based on 5-(4-imidazol-1-yl-phenyl)-2H-tetrazole and carboxylates

“…Imidazole and tetrazole have similar geometries but seldom are introduced in the same ligand. Only a few CPs based on HIPT were reported [15][16][17][18][19][20][21][22]. Incorporation of more types of metal ions or organic ligands into a single unique framework is worth studying because the functionality of CPs is mainly derived from metal ions and ligands [23,24].…”

“…Two new Zn(II) CPs, [Zn 2 (IPT)(DSDB)(OH)] n (1) and [Zn 2 (IPT)(PrIDC)(H 2 O)] n (2), were synthesized (scheme 1), and their thermal stabilities and luminescence properties have been studied. CPs based on HIPT are still limited [15][16][17][18][19][20][21][22].…”