杂合受体设计成识别磺酸盐首基和全氟辛烷的氟尾部两者(CF 3(CF 2)7 SO 3 -,“PFOS”)通过偶合氟化羧酸在聚(氨基甲基)苯的支架制备。结合PFOS,CF 3 SO 3 - ,p -TsO -和Cl -通过监测1 H NMR和等温滴定量热法(ITC)。在氯仿溶剂中,氢键阴离子在酰胺N被伴随着低磁场位移ħ氟化受体的质子和热量的释放。1:1络合(K assoc)的缔合常数> 1000 M -1。类似的烃受体与阴离子客体的结合较弱(K assoc <50 M -1)。从头算计算表明,氟和非氟主体之间1:1结合强度的差异不能归因于N H供体酸度的差异。
has been proven. In the metathesis reactions that have been carried out, the halide anion was exchanged in ionic liquid with an alkyl sulfonate based anion using alkylating agents. The results obtained using ion chromatographic analysis on the newly synthesized compounds have been discussed. Also, the utilization of a gaseous methyl halide by‐product, obtained in the metathesis reaction and otherwise
A Family of Tri- and Dimetallic Pyridine Dicarboxamide Cryptates: Unusual <i>O</i>,<i>N</i>,<i>O</i>-Coordination and Facile Access to Secondary Coordination Sphere Hydrogen Bonding Interactions
作者:Gary L. Guillet、Jesse B. Gordon、Gianna N. Di Francesco、Matthew W. Calkins、Erik Čižmár、Khalil A. Abboud、Mark W. Meisel、Ricardo García-Serres、Leslie J. Murray
DOI:10.1021/ic502873d
日期:2015.3.16
dimetallic metal complexes of pyridine dicarboxamide cryptates are reported in which changes to the base and metal source result in diverse structure types. Addition of strong bases, such as KH or KN(SiMe3)2, followed by divalent metal halides allows direct access to trinuclear complexes in which each metal center is coordinated by a dianionic N,N,N-chelate of each arm. These complexes bind a guest K+
Gypsum board with a fluorine-containing antifungal agent
申请人:Toreki William
公开号:US20090104144A1
公开(公告)日:2009-04-23
A novel gypsum board having improved antifungal properties is disclosed. The board comprises a gypsum core, front and back paper facings, and a polymeric antifungal agent effective at inhibiting fungal growth. A preferred polymeric antifungal agent is polyDADMAC or polyTMMC. The novel gypsum board further comprises a non-polymeric antifungal agent comprising a fluorine-containing quaternary ammonium compound. Preferred non-polymeric ammonium compounds include Tetra-n-butylammonium fluoride and Tetraethylammonium fluoride. The polymeric antifungal agent can be present in the gypsum core and/or on one or both of the paper facings. The non-polymeric antifungal agent may be encapsulated in a material or ionically associated with the polymeric antifungal agent to allow releases of the non-polymeric antifungal agent over time and/or upon exposure to moisture. Methods for preparing the aforementioned novel gypsum board are also disclosed.
Switching the activity of a photoredox catalyst through reversible encapsulation and release
作者:Giulio Bianchini、Alessandro Scarso、Giorgio La Sorella、Giorgio Strukul
DOI:10.1039/c2cc37374b
日期:——
Reversible encapsulation of [Ru(bpy)(3)](2+) within a self-assembled hexamericresorcin[4]arenecapsule turns off the photocatalytic aerobic oxidation of an aliphatic sulfide. Upon addition of a competitive cationic guest, the Ru(II) catalyst is released into solution where its catalytic activity is restored.
Solvated gold(I) in acetonitrile with inert counterions: a versatile starting material for gold(I) chemistry
作者:Reinhard Kissner、Petr Latal、Gerhard Geier
DOI:10.1039/c39930000136
日期:——
Solvated Au+ in acetonitrile with a variety of non-coordinating anions, an advantageous starting material for syntheses of gold(I) compounds, is conveniently prepared by halide-catalysed electrolysis.