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Die Gewitterforschung - Donner, Blitz und chemische Reaktionen
Nach einem Blick auf die Chemie hinter dem Geruch von Regen, hier ein Blick auf einige der Erkenntnisse hinter Gewittern. Wie entsteht der Blitz, was gibt ihm seine blauviolette Färbung und was hat er mit dem Pflanzenwachstum zu tun?...

Die Chemie der Mumifizierung
Mumien sind vielleicht das einfachste Kostüm für Halloween: Schnappt euch ein paar Verbände, drapiert euch darin und macht eure Arbeit. Hinter dem traditionellen Einbalsamierungsverfahren im alten Ägypten verbirgt sich jedoch noch etwas mehr, ebenso wie eine überraschende Menge an Chemie. Hier werfe...

Die Chemie des Blutes
Gefälschtes Blut ist ein unverzichtbares Accessoire, wenn Sie sich für einen blutigen Halloween-Look mit Ihrem Kostüm in diesem Jahr entscheiden. Es steckt viel Chemie in der Substanz, die Sie nachahmen wollen; wir können die Farbe, den Geruch und die verschiedenen Arten von Blut mit Hilfe der Chemi...

Entwicklung fortschrittlicher Lithium-Ionen-Batterien
Die heutige Grafik wirft einen Blick auf die Forschung von Kent Griffith (@kentjgriffith), einem Doktoranden der Universität Cambridge, der sich derzeit mit der Entwicklung fortschrittlicher Lithium-Ionen-Batterien für unsere Telefone, Laptops und mehr beschäftigt....

Chemical sensing with 2D materials
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 extra...

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

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

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

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

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

Cyclometalated Ir(III) complexes [Ir(tpy)(bbibH2)Cl][PF6] and [Ir(tpy)(bmbib)Cl][PF6]: intramolecular ????? interaction leading to facile synthesis and enhanced luminescence
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 1), ...

A Lithium ion/Oxygen Hybrid Battery with High-Energy and High-Power
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 LIB-part i...

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

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

Spin-coating-assisted fabrication of ultrathin physical hydrogel films with high toughness and fast response
Hydrogel films have promising applications in medical dressings, flexible electronics, etc. However, it is challenging to fabricate ultrathin hydrogel films with high toughness and controllable thickness. Here, we report a facile approach to prepare tough physical hydrogel films by spin-coating of a...


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