Spontaneous resolution of novel Zn complexes in the formation of 3D metal–organic frameworks based on 2,2′-biimidazole ligand

Strong Intermolecular Exciton Couplings in Solid‐State Circular Dichroism of Aryl Benzyl Sulfoxides

“…[21][22][23] Moreover, chiral crystallization and other chirogenic phenomena occurring exclusively in the crystalline state, which are thought to be ultimately related to the symmetry breaking observed in nature, rely on the measurement of CD and other chiroptical spectroscopies such as circular polarization of luminescence (CPL). 24 These phenomena include spontaneous resolution of optically labile species, [25][26][27][28][29][30] precipitation of conglomerates, [31][32][33][34][35] and formation of co-crystals between a chiral species and an achiral or optically labile one. [36][37][38] Our initial interest in solid-state CD spectroscopy was of a quite pragmatic nature.…”

From unprecedented 2,2′-bisimidazole-bridged rare earth organometallics to magnetic hysteresis in the dysprosium congener

“…Both the protonated (H 2 bim) and deprotonated (bim 2− ) have been used in coordination chemistry. Transition metal (TM) complexes feature the ligand in its protonated (H 2 bim), [14][15][16][17][18][19][20][21][22] ligands singly deprotonated (Hbim − ) 19,24,25 or doubly deprotonated (bim 2− ) 14,17,19,21,[25][26][27][28] form. The degree of protonation affects the denticity of the ligand and provided access to mono-, 14,[16][17][18][19][20][21]25 di-, 14,15,17,21,22,[24][25][26][29][30][31] tri-, 27,32 or tetranuclear complexes 19,27,28 Chart 1.…”

“…Transition metal (TM) complexes feature the ligand in its protonated (H 2 bim), [14][15][16][17][18][19][20][21][22] ligands singly deprotonated (Hbim − ) 19,24,25 or doubly deprotonated (bim 2− ) 14,17,19,21,[25][26][27][28] form. The degree of protonation affects the denticity of the ligand and provided access to mono-, 14,[16][17][18][19][20][21]25 di-, 14,15,17,21,22,[24][25][26][29][30][31] tri-, 27,32 or tetranuclear complexes 19,27,28 Chart 1. This structural richness gave rise to a wide range of applications where the TM complexes were luminescent, 22 catalytically active, 15 or intriguing for their spin-crossover properties.…”

“…This structural richness gave rise to a wide range of applications where the TM complexes were luminescent, 22 catalytically active, 15 or intriguing for their spin-crossover properties. 14,16 The various binding modes also allowed the construction of metal-organic frameworks 28,31,32 or polyoxometallates. 15,30 Furthermore, many complexes of H 2 bim show strong ion pairing effects through hydrogen bonding of the N-H groups with anionic species, 16,20 yielding exotic N-H-bridged dimeric complexes 19 or potential applications in anion sensing.…”