The solution phase anion binding behavior of a water-stable bidentate pnictogen bond donor was studied. A modest change in the visible absorption spectrum allowed for the determination of the binding constants. High binding constants were observed with cyanide, cyanate, and acetate, and these were corroborated with density functional theory (DFT) calculations. The receptor could be recovered free from the anion following treatment with methyl triflate, confirming that it remains intact. The tight binding of cyanide and water stability were exploited to use this system as a supramolecular catalyst in a phase-transfer Strecker reaction, further demonstrating the utility of pnictogen bonding as a tool in noncovalent catalysis.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acs.inorgchem.3c01887 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Structural and electronic features enabling delocalized charge-carriers in CuSbSe.
Nat Commun
January 2025
Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QR, United Kingdom.
Inorganic semiconductors based on heavy pnictogen cations (Sb and Bi) have gained significant attention as potential nontoxic and stable alternatives to lead-halide perovskites for solar cell applications. A limitation of these novel materials, which is being increasingly commonly found, is carrier localization, which substantially reduces mobilities and diffusion lengths. Herein, CuSbSe is investigated and discovered to have delocalized free carriers, as shown through optical pump terahertz probe spectroscopy and temperature-dependent mobility measurements.
View Article and Find Full Text PDFCorrelation between Noncovalent Bond Strength and Spectroscopic Perturbations within the Lewis Base.
J Phys Chem A
December 2024
Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, Wrocław 50-370, Poland.
Article Synopsis
- * The study evaluated interaction energy through comparisons with spectroscopic data, geometric properties, and other factors to uncover correlations, particularly focusing on the C═O stretching frequency and nuclear magnetic resonance changes.
- * While the interaction energy can be estimated from experimental measurements, standard AIM measurements correlate less effectively, and the σ-hole depth on the Lewis acid does not strongly relate to bond strength due to the limitations of electrostatic metrics.
Carbon-Bromide Bond Activation by Bidentate Halogen, Chalcogen, Pnicogen, and Tetrel Bonds.
J Phys Chem A
December 2024
College of Chemistry and Materials Science, Hebei Key Laboratory of Inorganic Nano-Materials, Hebei Normal University, Shijiazhuang 050024, China.
Halogen, chalcogen, pnictogen, and tetrel bonds in organocatalysis have gained noticeable attention. In this work, carbon-bromide bond activation in the Ritter reaction by bidentate imidazole-type halogen, chalcogen, pnicogen, and tetrel bond donors was studied by density functional theory. All of the above four kinds of catalysts exhibited excellent catalytic performance.
View Article and Find Full Text PDFPnictogen-based vanadacyclobutadiene complexes.
Chem Sci
December 2024
Department of Chemistry, University of Pennsylvania Philadelphia Pennsylvania 19104 USA
The reactivity of the V[triple bond, length as m-dash]C Bu multiple bonds in the complex (dBDI)V[triple bond, length as m-dash]C Bu(OEt) (C) (dBDI = ArNC(CH)CHC(CH)NAr, Ar = 2,6- PrCH) with unsaturated substrates such as N[triple bond, length as m-dash]CR (R = Ad or Ph) and P[triple bond, length as m-dash]CAd leads to the formation of rare 3d transition metal compounds featuring α-aza-vanadacyclobutadiene, (dBDI)V(κ- , - BuC(R)N) (R = Ad, 1; R = Ph, 2) and β-phospha-vanadacyclobutadiene moieties, (dBDI)V(κ- , - BuPAd) (3). Complexes 1-3 are characterized using multinuclear and multidimensional NMR spectroscopy, including the preparation of the 50% N-enriched isotopologue (dBDI)V(κ- , - BuCC(Ad)N) (1-N). Solid-state structural analysis is used to determine the dominant resonance structures of these unique pnictogen-based vanadacyclobutadienes.
View Article and Find Full Text PDFSynthesis and Characterization of Monomeric Triarylbismuthine Oxide.
Angew Chem Int Ed Engl
October 2024
Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany.
The synthesis and isolation of a bismuth-based analogue of the venerable triphenylphosphine oxide (PhPO) has remained a chimera to synthetic chemists for many years, due to its predicted high reactivity and instability. Through the hydrolysis of a cationic fluorotriarylbismuthonium(V) salt, we report here the isolation of unique hydroxytriarylbismuth(V) complexes, which served as precursor for the formation of the elusive monomeric triarylbismuthine oxide DippBi=O. Combined spectroscopic, crystallographic and computational studies provided insight into the bonding situation of the first monomeric triorganobismuth oxide complex.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!