24063-27-2Relevant academic research and scientific papers
Synthesis and properties of novel N,C,N terdentate skeleton based on 1,3-di(pyridin-2-yl)benzene moiety—new tricks for old dogs
Tan, Shuai,Wu, Xiugang,Zheng, Yanqiong,Wang, Yafei
, p. 1951 - 1954 (2019)
Utilization of intermolecular Friedel–Crafts and intramolecular condensation reaction, novel 1,3-di(pyridine-2-yl)benzene(N,C,N terdentate) skeleton with electro-withdrawing group in 6' position of pyridyl and a cyclization between 6' position of pyridyl and 6 position of benzyl ring were firstly designed and synthesized. The structures of these novel N,C,N terdentate were confirmed by NMR, MS and X-ray single crystalanalyses. The photophysical properties of these compounds were briefly explored.
A halogen-bonding foldamer molecular film for selective reagentless anion sensing in water
Hein, Robert,Borissov, Arseni,Smith, Martin D.,Beer, Paul D.,Davis, Jason J.
, p. 4849 - 4852 (2019)
We describe self-assembled monolayers of novel halogen-bonding and hydrogen-bonding foldamer receptors capable of selectively recruiting perrhenate, iodide and thiocyanate in water. Unprecedented anion sensing via impedance-derived capacitance spectroscopy enables subsequent sensitive and selective anion detection without the need for a redox probe. Importantly, the sensing of any anion should be possible using this novel electrochemical approach.
The structure-property relationship study of electron-deficient dihydroindeno[2,1-b]fluorene derivatives for n-type organic field effect transistors
Romain, Maxime,Chevrier, Michèle,Bebiche, Sarah,Mohammed-Brahim, Tayeb,Rault-Berthelot, Jo?lle,Jacques, Emmanuel,Poriel, Cyril
, p. 5742 - 5753 (2015)
A bridged syn triphenylene derivative, namely 5,7-dihydroindeno[2,1-b]fluorene, functionalized with dicyanovinylene units (2,1-b)-IF(=C(CN)2)2 has been designed, synthesized and characterized. Its optical and electrochemical properti
Versatile synthesis of tunable N,S-bridged-[1.1.1.1]-cyclophanes promoted by ester functions
Malytskyi, Volodymyr,da Silva, Vinicius Demetrio,Siri, Olivier,Giorgi, Michel,Raimundo, Jean-Manuel
, p. 6363 - 6367 (2016)
We report herein a powerful and highly adaptable metal-free organic synthetic route to functionalized N,S- bridged-[1.1.1.1]-cyclophanes using an ester-promoted macrocyclisation step. The newly synthesized cyclophanes are obtained in good yields exhibitin
Luminescent Anion Sensing by Transition-Metal Dipyridylbenzene Complexes Incorporated into Acyclic, Macrocyclic and Interlocked Hosts
Beer, Paul D.,Dapin, Sophie,Knighton, Richard C.
, p. 5288 - 5296 (2020)
A series of novel acyclic, macrocyclic and mechanically interlocked luminescent anion sensors have been prepared by incorporation of the isophthalamide motif into dipyridylbenzene to obtain cyclometallated complexes of platinum(II) and ruthenium(II). Both
Diazapentacenes from Quinacridones
Wiesner, Thomas,Ahrens, Lukas,Rominger, Frank,Freudenberg, Jan,Bunz, Uwe H. F.
supporting information, p. 4553 - 4556 (2021/02/26)
Bis(silylethynylated) 5,7- and 5,12-diazapentacenes were synthesized from cis- and trans-quinacridone using protection, alkynylation and deoxygenation. The solid-state packing of the targets is determined by choice and position of the silylethynyl substit
Singlet Biradical Versus Triplet Biradical/Zwitterion Characteristics in Isomers of C6?C5?C6?C7?C6-Fused Pentacyclic Aromatic Hydrocarbons Revealed through Reactivity Patterns
Zhen, Cian-Jhe,Lu, Shu-Feng,Lin, Min-Hwa,Wu, Jay-Tai,Chao, Ito,Lin, Chih-Hsiu
supporting information, p. 16682 - 16689 (2021/11/01)
Among various polycyclic aromatic hydrocarbons, C6?C5?C6?C7?C6 fused pentacyclic aromatic hydrocarbons have the unique potential to adopt quinonoid, zwitterion, singlet, or triplet biradical electroni
Discovery of an all-donor aromatic [2]catenane
Audibert, Edwige,Gianga, Tiberiu-M.,Kociok-K?hn, Gabriele,Panto?, G. Dan,Trandafir, Anamaria
, p. 9685 - 9690 (2020/10/14)
We report herein the first all-donor aromatic [2]catenane formed through dynamic combinatorial chemistry, using single component libraries. The building block is a benzo[1,2-b:4,5-b′]dithiophene derivative, a π-donor molecule, with cysteine appendages that allow for disulfide exchange. The hydrophobic effect plays an essential role in the formation of the all-donor [2]catenane. The design of the building block allows the formation of a quasi-fused pentacyclic core, which enhances the stacking interactions between the cores. The [2]catenane has chiro-optical and fluorescent properties, being also the first known DCC-disulphide-based interlocked molecule to be fluorescent.
Superelectrophilic-initiated C-H functionalization at the β-position of thiophenes: A one-pot synthesis of trans-stereospecific saddle-shaped cyclic compounds
Wei, Ying,Zheng, Xiangping,Lin, Dongqing,Yuan, Haoxuan,Yin, Zhipeng,Yang, Lei,Yu, Yang,Wang, Shasha,Xie, Ling-Hai,Huang, Wei
supporting information, p. 10701 - 10709 (2019/09/09)
Superelectrophilic-initiated direct C-H functionalization of thiophenes at the β-position was developed. A series of trans-stereospecific [2,1-a]-IF-thiophene-fused cyclic compounds (4) with saddle-shaped structure were prepared in 17-30% yields through a
Anion Recognition in Water by Charge-Neutral Halogen and Chalcogen Bonding Foldamer Receptors
Borissov, Arseni,Marques, Igor,Lim, Jason Y.C.,Félix, Vítor,Smith, Martin D.,Beer, Paul D.
supporting information, p. 4119 - 4129 (2019/03/07)
A novel strategy for the recognition of anions in water using charge-neutral σ-hole halogen and chalcogen bonding acyclic hosts is demonstrated for the first time. Exploiting the intrinsic hydrophobicity of halogen and chalcogen bond donor atoms integrated into a foldamer structural molecular framework containing hydrophilic functionalities, a series of water-soluble receptors was constructed for an anion recognition investigation. Isothermal titration calorimetry (ITC) binding studies with a range of anions revealed the receptors to display very strong and selective binding of large, weakly hydrated anions such as I- and ReO4-. This is achieved through the formation of 2:1 host-guest stoichiometric complex assemblies, resulting in an encapsulated anion stabilized by cooperative, multidentate, convergent σ-hole donors, as shown by molecular dynamics simulations carried out in water. Importantly, the combination of multiple σ-hole-anion interactions and hydrophobic collapse results in I- affinities in water that exceed all known σ-hole receptors, including cationic systems (β2 up to 1.68 × 1011 M-2). Furthermore, the anion binding affinities and selectivity trends of the first example of an all-chalcogen bonding anion receptor in pure water are compared with halogen bonding and hydrogen bonding receptor analogues. These results further advance and establish halogen and chalcogen bond donor functions as new tools for overcoming the challenging goal of anion recognition in pure water.
