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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Coordination structure and extraction behavior of a silver ion with N-substituted-9-aza-3,6,12,15-tetrathiaheptadecanes: significant effect of Ph-C-N framework on the extractability
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Coordination structure and extraction behavior of a silver ion with N-substituted-9-aza-3,6,12,15-tetrathiaheptadecanes: significant effect of Ph-C-N framework on the extractability

机译：银离子与N-取代的9-氮杂-3,6,12,15-四硫杂庚烷的配位结构和萃取行为：Ph-C-N骨架对萃取性能的重大影响

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摘要

N-Substituted-9-aza-3,6,12,15-tetrathiaheptadecanes having Ph-C-N frameworks (N-R-ATH; R = benzyl (N-Bn-ATH), 4-nitrobenzyl (N-NO2Bn-ATH), and diphenylmethyl (N-Ph2CH-ATH)) were synthesized, and their Ag(I) complexes were structurally characterized. X-Ray crystal structure analyses of [Ag(N-R-ATH)] (BF4) (R = Bn and Ph2CH) revealed monomeric tetra-S-coordinated complex cation structures without the N-coordination, and a benzene ring of the N-R group covered over the amine nitrogen atom. The precise extraction analyses of a Ag(I) ion with ATH derivatives (L = N-R-ATHs and N-H-ATH) associated with the H-1 NMR analyses of the [Ag(L)](+) complexes in polar and non-polar solvents revealed that the introduction of the N-substituent significantly enhanced the extractability of Ag+, due to the "hydrophobic cover" effect by the Ph-C-N framework in the [Ag(N-R-ATH)]+ complexes.
机译：具有Ph-CN骨架的N-取代的9-氮杂3,6,12,15-四硫杂庚烷（NR-ATH; R =苄基（N-Bn-ATH），4-硝基苄基（N-NO2Bn-ATH）和合成了二苯甲基（N-Ph2CH-ATH），并对其Ag（I）配合物进行了结构表征。 [Ag（NR-ATH）]（BF4）（R = Bn和Ph2CH）的X射线晶体结构分析显示，单体N-配位的四-S配位复合阳离子结构，且NR基团的苯环被覆盖在胺氮原子上。带有ATH衍生物（L = NR-ATHs和NH-ATH）的Ag（I）离子的精确萃取分析，以及极性和非极性[Ag（L）]（+）配合物的H-1 NMR分析。极性溶剂表明，由于[Ag（NR-ATH）] +配合物中Ph-CN骨架具有“疏水覆盖”作用，N取代基的引入显着提高了Ag +的可萃取性。

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