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Chemical sensing with 2D materials

03.07.2018 | Cosimo Anichini; Włodzimierz Czepa; Dawid Pakulski; Alessandro Aliprandi; Artur Ciesielski; Paolo Samorì, Chemical Society Reviews, 2018

During the last decade, two-dimensional materials (2DMs) have attracted great attention due to their unique chemical and physical properties, which make them appealing platforms for diverse applications in opto-electronic devices, energy generation and storage, and sensing. Among their various ...


Atomic hydrogen interactions with gas-phase coronene cations: hydrogenation versus fragmentation

03.07.2018 | Mathias Rapacioli; Stéphanie Cazaux; Nolan Foley; Aude Simon; Ronnie Hoekstra; Thomas Schlathölter, Physical Chemistry Chemical Physics, 2018

Sequential hydrogenation of polycyclic aromatic hydrocarbon (PAH) cations drives a gradual transition from a planar to a puckered geometry and from an aromatic to an aliphatic electronic structure. The resulting H-induced weakening of the molecular structure together with the exothermic nature of ...


Silver(I)-catalyzed sequential hydroamination and Prins type cyclization for the synthesis of fused benzo--sultams

03.07.2018 | B. Maheshwar Rao; J. S. Yadav; B. Sridhar; B. V. Subba Reddy, Organic & Biomolecular Chemistry, 2018

An intramolecular annulation strategy has been developed for the synthesis of tetrahydrobenzo[e]pyrano[4,3-c][1,2]thiazine derivatives by means of coupling of aldehydes with 2-(4-hydroxybut-1-yn-1-yl)-N-arylsulfonamides using a catalytic amount of silver hexafluoroantimonate in toluene at 80 °C. ...


Effect of copolymer sequence on structure and relaxation times near a nanoparticle surface

03.07.2018 | Alex Trazkovich; Mitchell Wendt; Lisa Hall, Soft Matter, 2018

We simulate a simple nanocomposite consisting of a single spherical nanoparticle surrounded by coarse-grained polymer chains. The polymers are composed of two different monomer types that differ only in their interaction strengths with the nanoparticle. We examine the effect of adjusting ...


An efficient iodine pentoxide-triggered iodocarbocyclizations for the synthesis of iodooxindoles in water

03.07.2018 | Ming-Zhong Zhang; Xin Wang; Ming-Ying Gong; Lin Chen; Wenbin Shi; Shu-Hua He; Yong Jiang; Tieqiao Chen, Organic & Biomolecular Chemistry, 2018

An efficient iodocarbocyclization of alkenes for the synthesis of iodooxindoles has been developed. This reaction proceeds in a chemoselective manner and shows excellent tolerance of various functional groups, including a chemosensitive hydroxymethyl group. Nonmetal inorganic iodine pentoxide was ...


Copper-Catalyzed Cyclization of 2-Cyanobenzaldehydes and 2-Isocyanoacetates: an Efficient Strategy for the Synthesis of Substituted 1-Aminoisoquinolines

03.07.2018 | Wen Bao; Jun-Qi Wang; Xuetao Xu; Bang-Hong Zhang; Wei-Ting Liu; Lin-Sheng Lei; Huan Liang; Kun Zhang; Shao-Hua Wang, Chemical Communication, 2018

A Cu(acac)2-catalyzed cyclization reaction of 2-cyanobenzaldehydes with 2-isocyanoacetates has been successfully developed providing an efficient strategy for the synthesis of substituted 1-aminoisoquinoline. The reaction proceeds smoothly under mild conditions with high efficiency, and might ...


Cyclometalated Ir(III) complexes [Ir(tpy)(bbibH2)Cl][PF6] and [Ir(tpy)(bmbib)Cl][PF6]: intramolecular ∙∙∙ interaction leading to facile synthesis and enhanced luminescence

03.07.2018 | Zhong-Ze Qu; Tao-Bao Gao; Jing Wen; Kai Rui; Haibo Ma; Deng-Ke Cao, Dalton Transactions, 2018

Cyclometalated Ir(III) complexes [Ir(tpy)(bbibH2)Cl][PF6] (1PF6) and [Ir(tpy)(bmbib)Cl][PF6] (2PF6), and the controlled complex [Ir(tpy)(mbib)Cl][PF6] (3PF6) have been synthesized at 135 oC for 10 hours for the former two complexes, while at 190 oC for 24 hours for the latter complex (Scheme ...


A Lithium ion/Oxygen Hybrid Battery with High-Energy and High-Power

03.07.2018 | Shijia Mu; Ding Zhu; Ruixue Zhang; Kaifang Zhang; Zhendong Ding; Yungui Chen, Chemical Communication, 2018

A novel lithium ion/oxygen hybrid battery system is proposed to use the advantages and minimize the disadvantages of both lithium-ion battery (LIB) and lithium-oxygen battery (LOB). In it, LOB-part plays the extended-range and high-power-output roles. While using the discharge-priority of ...


Terbium complexes encapsulated in hierarchically organized hybrid MOF particles toward stable luminescence in aqueous media

03.07.2018 | Yiquan Wang; Wei Zhou; Feng Chen; Kaiyao Sun; Jixi Zhang; Ezgi Özliseli; Jessica M. Rosenholm, CrystEngComm, 2018

To exert the respective advantages of lanthanide complexes and metal–organic frameworks (MOFs) in luminescence and encapsulation, hierarchically organized hybrid MOF particles were developed to meet the requirements of stable luminescence for applications in biological media. Anionic terbium (Tb) ...


Preparation of polynuclear NHC complexes by post-synthetic modification of half-sandwich rhodium and iridium complexes bearing C-azolato ligands

03.07.2018 | Francisco Aznarez; Wen-Xi Gao; Yue-Jian Lin; F. Ekkehardt Hahn; Guo-Xin Jin, Dalton Transactions, 2018

A series of bimetallic and trimetallic complexes has been prepared by N-alkylation of mononuclear half-sandwich rhodium and iridium di-NHC complexes featuring bidentate chelate ligands composed of a classical NHC and a C-azolato donor. The shape and the separation between metal centers in the ...


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