The Generality of Architectural Isomerism in Designer Inclusion Frameworks
作者:K. Travis Holman、Stephen M. Martin、Daniel P. Parker、Michael D. Ward
DOI:10.1021/ja0030257
日期:2001.5.1
We describe herein new structural isomers of a lamellar host system based on organodisulfonate "pillars" that connect opposing hydrogen-bonded sheets, consisting of topologically complementary guanidinium (G) ions and sulfonate (S) groups, to generate inclusion cavities between the sheets. These new isomers-zigzag brick, double brick, V-brick, and crisscross bilayer-expand significantly on our earlier
Process for the preparation of cyanine dyes with polysulfonate anions
申请人:Tao Ting
公开号:US20050113546A1
公开(公告)日:2005-05-26
A convenient and economical method for preparing infrared absorbing cyanine dyes useful in lithographic printing plate precursors is disclosed. The reaction is generally carried out by condensation of a heterocyclic base containing an activated methylene group and an unsaturated bisaldehyde or its equivalent in a solvent or solvent mixture at about 20-150° C. All the reactions necessary for production of the infrared absorbing cyanine dye may be carried out in one reaction vessel without isolating any intermediate products.
Liquid and Glass Phases of an Alkylguanidinium Sulfonate Hydrogen-Bonded Organic Framework
作者:Adam H. Slavney、Hong Ki Kim、Songsheng Tao、Mengtan Liu、Simon J. L. Billinge、Jarad A. Mason
DOI:10.1021/jacs.2c02918
日期:2022.6.29
memory applications. Here, we report a new guanidinium organosulfonate hydrogen-bonded organic framework (HOF) that melts and vitrifies below 100 °C. In this low-temperature regime, non-covalent interactions between guest molecules and the porous framework become a dominant contributor to the overall stability of the structure, resulting in guest-dependent melting, glass, and recrystallization transitions
框架材料的玻璃相具有独特且可调的特性,有利于气体分离膜、固体电解质和相变存储器应用。在这里,我们报告了一种新的有机磺酸胍氢键有机骨架 (HOF),它在 100 °C 以下熔化和玻璃化。在这种低温状态下,客体分子和多孔框架之间的非共价相互作用成为结构整体稳定性的主要贡献者,导致依赖于客体的熔化、玻璃化和再结晶转变。通过模拟和 X 射线散射,我们表明非晶液相和玻璃相的局部结构类似于母晶框架的局部结构。
Production of aromatic polysulphones
申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0049070A1
公开(公告)日:1982-04-07
Aromatic polysulphones are prepared by the reaction under substantially anhydrous conditions in the presence of a fluoroalkane sulphonic acid, particularlytrifluoromethane sulphonic acid or difluoromethane sulphonic acid, of the reactants selected from the following class:
(a) an aromatic compound of specified formula (such as diphenyl ether or diphenyl) and a sulphonating agent;
(b) an aryl monosulphonic acid of specified formula (such as diphenyl ether-4-sulphonic acid or diphenyl-4-sulphonic acid); and
(c) an aryl disulphonic acid of specified formula (such as diphenyl ether-4,4'-disuiphonic acid or diphenyl-4,4'-disulphonic acid) and an aromatic compound as defined in (a).