A neutral dinuclear rhenium(I) bipyridinetricarbonyl bromide complex has been investigated with a range of anions, giving a remarkable binding affinity for dihydrogenphosphate. These studies highlight that anion sensing can be achieved with structurally simple species provided that the compound adopts an unconventional conformation, through, for example, intramolecular hydrogen bonding in solution.
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http://dx.doi.org/10.1021/ic700452k | DOI Listing |
Chemistry
June 2024
Faculty of Chemistry and Biochemistry, Ruhr-University Bochum, Universitätsstrasse 150, 44780, Bochum, Germany.
Cancer is one of the deadliest diseases worldwide. Chemotherapy remains one of the most dominant forms for anticancer treatment. Despite their clinical success, the used chemotherapeutic agents are associated with severe side effect and pharmacological limitations.
View Article and Find Full Text PDFInorg Chem
July 2023
School of Chemistry, University of Hyderabad, Hyderabad 500 046, India.
The self-assembly of three rheniumtricarbonyl core-based supramolecular coordination complexes (SCCs), -[Re(CO)(μ-L)(μ-L')Re(CO)] (-) was carried out using Re(CO), rigid bis-chelating ligand (HO∩N-Ph-N∩OH (L) (where HO∩N = 2-hydroxyphenylbenzimidazolyl), and flexible ditopic N-donor ligands (L = bis(3-((1-benzoimidazol-1-yl)methyl)-2,4,6-trimethylphenyl)methane, L = bis(3-((1-naphtho[2,3-]imidazol-1-yl)methyl)-2,4,6-trimethylphenyl)methane, L = bis(4-(naphtho[2,3-]imidazol-1-yl-methyl)phenyl)methane) a one-pot solvothermal approach. In the solid state, the dinuclear SCCs adopt heteroleptic double-stranded helicate and meso-helicate architectures. The supramolecular structures of the complexes are retained in the solution based on the H NMR and electrospray ionization (ESI)-mass analysis.
View Article and Find Full Text PDFDalton Trans
July 2021
Department of Chemistry, BITS-Pilani Hyderabad Campus, Hyderabad-500078, India.
This paper describes the synthesis of an unprecedented oxo-bridged rheniumI/VII (Re) complex by treating Re2(CO)10 with a pyridyl-linked anthracene-based twisted π-conjugated ligand. The molecular structures of both the ligand and the complex are determined by analyzing IR, NMR, and HR-MS spectra and unequivocally determined using single-crystal X-ray diffraction studies. Unlike previous observations, the complexation occurs uniquely to yield an unprecedented oxo-bridged ReI/VII complex.
View Article and Find Full Text PDFChem Commun (Camb)
November 2020
Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan.
Rational design of near-infrared (NIR) absorbing molecules is crucial for developing photofunctional materials. Here, we synthesized dinuclear and mononuclear Re(i) tricarbonyl phthalocyanine complexes that exhibit a sharp intense Q band in the NIR region. The unsymmetric coordination of electron-deficient metal unit(s) concomitantly produced a remarkable red shift of the Q band and improved the tolerance of the phthalocyanine ring to oxidation.
View Article and Find Full Text PDFInorg Chem
October 2020
Departamento de Quı́mica Inorgánica, Facultade de Quı́mica, Instituto de Investigación Sanitaria Galicia Sur, Universidade de Vigo, Campus Universitario, E-36310 Vigo, Galicia, Spain.
The reaction of -[ReX(CHCN)(CO)] (X = Cl, Br) with -phenyl-[4-(dimethylamino)benzaldehyde] thiosemicarbazone () or -4-methoxybenzyl-[4-(dimethylamino)benzaldehyde] thiosemicarbazone () under controlled synthetic conditions gave 4 mononuclear [ReX(HL)(CO)] (X = Cl, Br) and 16 dinuclear [ReL(CO)] compounds. These complexes were obtained as single crystals, and their structures were established by X-ray diffraction. The structural study of these dimers showed the formation of several solvates, the presence of linkage isomerism, and the stabilization of four- and/or five-membered chelate rings.
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