Sulfonamidsubstituierte Thionoliganden als Komplexbildner für Kupfer(II) und als Extraktionsmittel für die späten 3d‐Metallionen

Abstract

Thionoliganden, die Arensulfonylamido‐ bzw. Arensulfonylhydrazido‐funktionen als zweite Donatorgruppen enthalten (STAT−, PST−, BPTS−, BMTH− und TPTH−, zur Bedeutung der Abkürzungen vergleiche Text), reagieren in unterschiedlicher Weise mit Kupfer(II). Normale 1,2‐Komplexe werden mit PST−, BMTH− und TPTH− gebildet. Dagegen ist die Umsetzung mit STAT− und BPTS− mit einem Redoxprozeß verbunden, der zur Bildung von Kupfer(I)‐Komplexen führt. PST− ist ein ambidenter Ligand, der sowohl fünf‐als auch viergliedrige Chelatringe bilden kann. Wahrscheinlich beruht die Bildung der beiden Isomeren von Cu(PST)2 auf diesem Effekt. Die Charakterisierung der neuen Chelate erfolgt anhand von ESR‐Spektren und ESCA‐Daten. Als Extraktionsmittel für Kupfer(II) bringen die Verbindungen STAT‐H, BPTS‐H und TPTH‐H als Fünf‐ bzw. Sechsringbildner keine Vorteile gegenüber den früher beschriebenen Arensulfonylthioharnstoffen, die nur viergliedrige Chelatringe bilden. Dagegen ist PST‐H ein attraktives Extraktionsmittel für Cu(II), Co(II) und Zn(II). In bezug auf die pH1/2‐Werte kann es mit Dithizon verglichen werden.

A Flexible Ceramic/Polymer Hybrid Solid Electrolyte for Solid‐State Lithium Metal Batteries

“…Figure 1B presents S 2p spectrum of PEO/PEG‐3LGPS which includes the characteristic peaks of SP, SGe from LGPS and that of SC, SN, SO assigned to LiTFSI. [ 30–34 ] Figure 1C shows Si 2p spectrum and two components appear: one at low binding energy around 102.1 eV related to Si–C which is the result of reaction between CMTS and PEG, another at higher binding energy about 103.2 eV related to Si–S which is also detected in S 2p spectrum (Figure 1B) and provides a strong proof of reaction between CMTS and LGPS. [ 35–37 ] That is to say, LGPS and PEG is becoming a unified whole linked by the chemical bonds that formed by reacting with CTMS.…”

Ultrafast Sulfur Mustard Simulant Gas Fluorescent Chemosensors Based on Triazole AIEE Material with High Selectivity and Sensitivity at Room Temperature

“…The existence of S and Cl elements can be confirmed from S 2p and Cl 2p spectra; the high-resolution S 2p and Cl 2p spectra of NDTAZ film exposed to 2-CEES vapor are also investigated. As for the S 2p XPS spectrum (Figure S18g), the peaks at 164.3 and 167.8 eV are assigned to 2p 3/2 and 2p 1/2 positions of C–S–C, respectively. , The Cl 2p spectrum is composed of two peaks centered at 197.7 and 200 eV, which are assigned to the Cl 2p 1/2 and 2p 3/2 (Figure S18h). , These results reveal that C atoms of 2-CEES are bonded with NDTAZ .…”

“…As for the S 2p XPS spectrum (Figure S18g), the peaks at 164.3 and 167.8 eV are assigned to 2p 3/2 and 2p 1/2 positions of C−S−C, respectively. 59,60 The Cl 2p spectrum is composed of two peaks centered at 197.7 and 200 eV, which are assigned to the Cl 2p 1/2 and 2p 3/2 (Figure S18h). 61,62 These results reveal that C atoms of 2-CEES are bonded with NDTAZ.…”

Incorporation of crystal violet, methylene blue and safranin O into a copolymer emulsion; the development of a novel antimicrobial paint

“…39 The peaks for sulphur were detected at 168.3-169.6 eV for the three samples that had sulphur present in their spectrum, suggesting these peaks were caused by an organic sulphur species. 40 The peak for nitrogen was detected at 399.5-399.9 eV for all four samples, suggesting this peak was caused by an organic nitrogen species. 41 XPS depth prole data indicated a signicant variation in elemental content between the three different dye systems and the polymer during the initial 15 s of analysis.…”