Six new heteroleptic phenylantimony(III) derivatives containing substituted oximes and dithiocarbamate moieties of the type (where R = ─C 6 H 5 , X = ─CH 3 (2a); R = ─C 6 H 4 CH 3 , X = ─CH 3 (2b); R = ─C 6 H 4 Cl, X = ─CH 3 (2c); R = ─C 6 H 4 Br, X = ─CH 3 (2d); R = ─C 6 H 4 OH, X = ─H (2e); R(X)C = (2f)) have been synthesized by the reactions of phenylantimony(III) dichloride with the sodium salt of substituted oximes and dithiocarbamate moiety in unimolar ratio with stirring in dichloromethane. All these newly synthesized derivatives have been characterized using physicochemical and elemental analyses. Structures have been proposed on the basis of infrared, 1 H NMR, 13 C NMR and LC-MS spectral studies and molecular modelling. In these derivatives the oxime behaves in an unidentate manner whereas dithiocarbamate behaves in a monofunctional anisobidentate manner. Pseudo-trigonal bipyramidal (ψ-TBP) geometry around the antimony metal centre is proposed for these phenylantimony(III) heteroleptic derivatives. The geometry of a representative complex has been optimized through molecular modelling. These newly synthesized derivatives were screened against Bacillus subtilis (Gram-positive) and Escherichia coli (Gram-negative) bacteria to evaluate their antibacterial potential. The structureactivity relationship for antibacterial activity among the four derivatives 2a, 2c, 2e and 2f is discussed.
The reactions oi tributyltin ethoxide, Bu3SnOEt, with N,N‐dialkylalkanolamines, HORNR2 (where R = CH2 · CH2, CH2 · CH2 · CH2 and CH2 · MeCH; R = CH3 and C2H5) give Bu3SnORNR2. In reactions of Bu3SnOEt with N‐methylethanolamine, HOCH2 · CH2NHMe, and various alkanolamines, HO · R · NH2, (where R = CH2 · CH2 CH2 · CH2 · CH2, CHMe · CH2 CH2 · Me2C and CH2 · CH · CH2 · Me) both the hydroxy as well as the amino groups show reactivity to form products of the type: Bu3SnOCH2 · CH2NHMe, Bu3SnOCH2 · CH2NMeSnBu3, Bu3SnO · R · NH2, Bu3SnO · R · NHSnBu3, and Bu3SnO · R · N(SnBu3)2, respectively. The reaction between Bu3SnOEt and o‐aminophenol yields only Bu3SnO · C6H4NH2.
Das Butylzinntriisopropylat (I) reagiert mit den Aminoalkoholen (II) zu den cyclischen Verbindungen (III)‐(V), während mit Di‐ und Triäthanolamin die Verbindungen (VII) und (VIII) und das Butylstannatran (X) erhalten werden.
This report focuses on the exceptional trait of using perovskite halide sensing method in relation to sensing of heavy metal ions. Metal halide perovskite (MHP), which exhibits excellent sensing properties, is now considered as an efficient sensing material. We first describe the sensing of metal halides perovskites in metal halide. Next, performance improvement strategies focused on tuning of sensing properties for sensing metal ions. A new two-dimensional (2D) lead perovskite, B2An-1PbnX3n+1, exhibits impressive water resistance when in contact with water while retaining the real crystal arrangement and ocular characteristics. B2An-1PbnX3n+1. B2An-1PbnX3n+1 composites were synthesized and investigated for sensing. The results show an impressive increase in concentration in the composite and similar improvements in metal halide. Recent results in providing new watertight perovskite leads to secure, effective, and practical utilization of metal halide perovskite in sensing. In this project, we have synthesized compound B2An-1PbnX3n+1 (S1) and prepared perovskite films using a drop casting method. Then, we have performed sensing studies using heavy metal ions such as Cd2+, Ba2+ & Zn2+ using UV Visible (UV-Vis) spectroscopic techniques. From UV-Vis experiments, we have found that our synthesized receptor has sensed Cd2+ & Zn2+ but the receptor could not sense Ba2+. We have also performed thin film colorimetric sensing experiment. We observed some amount of color changes for Cd2+ & Zn2+ ions. Thus, our synthesized receptor could be promising futuristic material for heavy metal ion sensing.
Je nach Mengenverhältnis der Reaktanden entsteht aus (I) und (II) durch azeotropes Abdestillieren des gebildeten Äthanols entweder das Mono‐(III) oder das Disubstitutionsprodukt (IV).
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