[EN] PNICTOGEN-CONTAINING HETEROCYCLIC COMPOUNDS AND THEIR USE [FR] COMPOSÉS HÉTÉROCYCLIQUES CONTENANT DU PNICTOGÈNE ET LEUR UTILISATION
摘要:
Disclosed are pnictogen-containing heterocyclic compounds of Formula (I). Each of R1, the heterocyclic ring H, A+, LG, and X‾ is defined herein. Also provided are methods of modifying a substrate using such a compound, conjugated biomolecules thus modified, and pharmaceutical compositions containing one of the conjugated biomolecules.
为了在左右复杂生物溶液的钌络合物地址悬而未决的问题,19 F NMR光谱法用于遵循氟化钌之间的结合偏好II(η 6 -arene)(联吡啶)络合物和保护的氨基酸和谷胱甘肽。迄今为止,报告钌化合物在复杂环境中结合的方法仅限于相对定性的方法,例如质谱法和X射线光谱法。但是,无法从这些技术中推断出溶液相中存在的物质的定量信息。此外,使用1 H NMR,在水中,以区分和监控多个不同的复杂的Ru II(η 6-芳烃)加合物的形成具有挑战性。将NMR活性杂原子掺入钌有机金属络合物中可提供定量的诊断“指纹”,以追踪溶液相的行为并明确分配给定的任何加合物。所得的19 F NMR光谱首次显示出有机钌化合物在复杂混合物中暴露于简单生物分子时的动态变化行为。即使在密切相关的一系列配合物中,只有芳烃配体的供电子性质发生变化,观察到的不同物种的形成速度也受到金属的电子性能的显着影响。对半胱氨酸结合的偏好是绝对的:这种行为的第一个定量的溶液阶段证据。
An luminescent device material which is inexpensive and exhibits excellent durability in the presence of oxygen can be provided using a luminescent silver complex which has an organic multidentate ligand, particularly, a luminescent silver complex wherein the organic multidentate ligand is coordinated to a phosphorus atom, a nitrogen atom, an oxygen atom, a sulfur atom, an arsenic atom, an oxygen anion, a nitrogen anion, or a sulfur anion, or a polymer of the luminescent silver complex.
Base-Mediated Synthesesof New 6,6′-Di(polyfluoroalkoxy)-2,2′-Bipyridines with100% Regioselectivity
作者:Jean’ne M. Shreeve、Rajendra P. Singh、Gary V. Eggers
DOI:10.1055/s-2003-39173
日期:——
Reactions of N,N-difluoro-2,2′-bipyridinium bis(tetrafluoroborate) (MEC-31) (1) with fluorinated alcohols RfOH [Rf = CF3CH2, CH2FCH2, CF3CF2CH2, CHF2CF2CH2, (CF3)2CH] 2a-e, in the presence of a base at 70 °C without solvent, gave good yields of 6,6′-di(polyfluoroalkoxy)-2,2′-bipyridines 3a-e with 100% regioselectivity. Triethylamine with 1, produced 6,6′-difluoro-2,2-bipyridine (4).
Fluorinated cobalt redox mediator, method for producing the same, and its use in dye-sensitized solar cell
申请人:Solvay SA
公开号:EP2711360A1
公开(公告)日:2014-03-26
The present invention provides a metal complex having the formula : (La)n-M, wherein M is cobalt, La is fluorinated bidentate or fluorinated tridentate ligand, and n is 2 or 3. The fluorinated cobalt complex can be used as redox mediator in dye-sensitized solar cell.
Boronium complexes bearing a 9-borabicyclononane framework with a bipyridine-type ligand display photoinduced solid-state coloring behavior. While the identity of the substituents on the boron atom is critical to gain photoresponsive capability, modifying the nitrogen-containing ligand structure and its substituents provides a wide variation in the photoinduced solid color. (C) 2016 Elsevier Ltd. All rights reserved.
Mononuclear Ruthenium–Water Oxidation Catalysts: Discerning between Electronic and Hydrogen-Bonding Effects
New mononuculear complexes of the general formula [Ru(trpy)(n,n'-F-2-bpy)X](m+) [n = n' = 5, X = Cl (3(+)) and H2O (5(2+)); n = n' = 6, X = Cl (4(+)) and H2O (6(2+); trpy is 2,2':6':2 ''-terpyridine] have been prepared and thoroughly characterized. The 5,5'- and 6,6'-F-2-bpy ligands allow one to exert a remote electronic perturbation to the ruthenium metal center, which affects the combination of species involved in the catalytic cycle. Additionally, 6,6'-F2-bpy also allows through-space interaction with the Ru-O moiety of the complex via hydrogen interaction, which also affects the stability of the different species involved in the catalytic cycle. The combination of both effects has a strong impact on the kinetics of the catalytic process, as observed through manometric monitoring.