Reactions of Naphthyl Tellurium Trihalides with Some Dithiocarbamates and Xanthates: X-Ray Structure of “T-Shaped” Naphthyl Tellurium 1-Pyrrolidinecarbodithioate
作者:Martin D. Rudd、Angela Defferding、Kevin K. Klausmeyer
DOI:10.1080/10426500802202063
日期:2008.9.15
The reaction of naphthyl telluriumtrihalides, ArTeX3 (X = Br, Cl; Ar = naphthyl) with several salts of dithiocarbamate and xanthate ligands (L) have been investigated by metathesis in tetrahydrofuran. The products (1–3) were characterized by multinuclear NMR spectroscopy and elemental analysis. Crystals of ArTeL (L = 1-pyrrolidine-carbodithioate, 1) were obtained from the reaction of ArTeCl3 and 3
In Situ Synthesis of PbS Nanocrystals in Polymer Thin Films from Lead(II) Xanthate and Dithiocarbamate Complexes: Evidence for Size and Morphology Control
作者:Edward A. Lewis、Paul D. McNaughter、Zhongjie Yin、Yiqiang Chen、Jack R. Brent、Selina A. Saah、James Raftery、Johannes A. M. Awudza、M. Azad Malik、Paul O’Brien、Sarah J. Haigh
DOI:10.1021/cm504765z
日期:2015.3.24
film to decompose the precursor. The effect of precursor chemistry has been explored using lead(II) dithiocarbamates, their 1,10-phen adducts, and lead(II) xanthates with different alkyl chain lengths (butyl, hexyl, and octyl). The xanthates were found to be more promising precursors giving control over nanocrystal size and shape on variation of the alkyl chain length. The lead(II) octyl xanthate complex
Synthesis, X-ray Single-Crystal Structural Characterization, and Thermal Analysis of Bis(O-alkylxanthato)Cd(II) and Bis(O-alkylxanthato)Zn(II) Complexes Used as Precursors for Cadmium and Zinc Sulfide Thin Films
作者:Ali A.K. Bakly、David Collison、Ruben Ahumada-Lazo、David J. Binks、Matthew Smith、James Raftery、George F. S. Whitehead、Paul O’Brien、David J. Lewis
DOI:10.1021/acs.inorgchem.1c01110
日期:2021.5.17
O-alkylxanthato zinc and cadmium precursor complexes to enhance production of ZnS and CdS materials. The structures of several bis(O-alkylxanthato) cadmium(II) complexes (8–13) and bis(O-alkyl xanthato)zinc(II) complexes (18 and 19) are reported based on single crystal X-ray diffraction data. CdS and ZnS films were produced by the spin-coating of these metal complexes followed by their thermal decomposition
zinc(II) xanthates and the order of curing catalytic efficiency utilizing zinc(II) xanthates. In the case of linear alkylzinc(II) xanthates with an increase in the alkyl chain length, both thermal decomposition temperature and the cure time were enhanced. In contrast, in case of branched alkyl chain zinc(II) xanthates with increasing alkyl chain length show decreasing thermal decomposition temperature
合成了具有不同烷基链长度的线性和支化锌 (II) 黄原酸酯,并通过 1H NMR、13C NMR、IR 光谱以及元素分析对其进行了表征。XRD 分析证实了硫化锌作为黄原酸锌 (II) 热退火后的最终分解产物。使用黄原酸锌 (II) (5% 质量) 作为潜在固化催化剂分析了环氧树脂复合材料在不同温度下的固化时间。热退火时对包括黄原酸锌 (II) 的固化环氧树脂的 XRD 研究揭示了复合基质中原位 ZnS 的存在,表明黄原酸锌 (II) 的原位热分解是可能的固化机制。进行热重分析以研究黄原酸锌 (II) 的热分解温度趋势。观察到与黄原酸锌 (II) 的热分解温度趋势和使用黄原酸锌 (II) 的固化催化效率顺序相关的平行趋势。在线性烷基锌 (II) 黄原酸酯的情况下,随着烷基链长度的增加,热分解温度和固化时间都提高了。相比之下,在支链烷基链黄原酸锌 (II) 的情况下,随着烷基链长度的增加,热分解温度和固化时间都会降低。
Defluorinative Alkylation of 1-Trifluoromethyl Alkenes with Alkyl Radicals Derived from Visible-Light Induced Deoxygenation of Xanthate Salts: Synthesis of gem-Difluoroalkenes
difluoroallylation of alkyl precursors with trifluoromethyl alkenes for the synthesis of gem-difluoroalkenes is appealing and challenging. We herein describe a visible light-induced approach that enables deoxygenative difluoroallylation of abundant alcohols via xanthate salts with trifluoromethyl alkenes, where xanthate salts work as a photoreductant and an alkylating reagent, avoiding the use of external