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May 2023 issue
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The structures of the isostructural sodium, potassium, and ammonium double salts of [Co(en)3]Cl3 (en is ethane-1,2-diamine) have been determined and, compared with the parent compound, show a modest increase in the unit-cell volume.
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The tetramer of bis[4-(di-n-butylamino)phenyl](pyridin-3-yl)borane was synthesized unexpectedly and crystallized. Its structure contains an unusual 16-membered ring core made up of four (pyridin-3-yl)borane groups. The ring adopts a conformation with pseudo-S4 symmetry that is very different from the two other reported examples of this ring system.
CCDC reference: 2249909
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Site-selective interactions of nitroso, carbamoyl and nitrile groups provide reliable supramolecular synthons for the assembly of hydrogen-bonded frameworks with multifuctional methanide anions.
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In the heteroleptic cuprous complex rac-[Cu(BINAP)(2-PhPy)]PF6, 2,2′-bis(diphenylphosphanyl)-1,1′-binaphthyl (BINAP) and 2-phenylpyridine (2-PhPy) exhibit chelate and terminal coordination modes, respectively. After composite processing, the paper-based film based on the complex exhibits obvious luminescence light-up sensing for pyridine.
CCDC reference: 2255458
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Three proton-transfer salts of diphenylphosphinic acid (DPPA) with 2-amino-5-(X)-pyridine (AMPY, X = Cl, CN or CH3) have been synthesized and characterized by FT–IR and 1H NMR spectroscopy, and X-ray crystallography. Theoretical density functional theory (DFT) calculations were performed to investigate the optimized geometries and showed good agreement between the experimental data and the computational analysis.