Chemie.de - Seite 17

Homepage  Xml - Vorschau mit Bildern

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...

Geometric distortions in nickel (oxy)hydroxide electrocatalysts by redox inactive iron ions
The dramatic change in electrochemical behavior of nickel (oxy)hydroxide films upon incorporation of Fe ions provides an opportunity to establish effective electrocatalyst design principles. We characterize a photochemically deposited series of Fe–Ni (oxy)hydroxides by X-ray absorption spectroscopy ...

Correction: Neutron diffraction studies on the thermal expansion and anomalous mechanics in the perovskite-type [C(ND2)3]Me2+(DCOO)3 [Me = Cu, Mn, Co]
Correction for ‘Neutron diffraction studies on the thermal expansion and anomalous mechanics in the perovskite-type [C(ND2)3]Me2+(DCOO)3 [Me = Cu, Mn, Co]’ by M. Viswanathan et al., Phys. Chem. Chem. Phys., 2018, DOI: 10.1039/c8cp01245h....

Doping stability of nonphotorefractive ions in stoichiometric and congruent LiNbO3
The doping stability of various nonphotorefractive ions including Mg, Zn, In, Sc, Sn, Hf, and Zr in stoichiometric, congruent, and Fe-doped LiNbO3 has been investigated by hybrid density functional theory. It is found to be energetically prefer for all the dopants to incorporate into Li sites of all...

Creating Capsules with Cubanes
A sextuply linked capsule incorporating two Ni(II) cubane units is formed when Ni(II) salts are reacted with N-aminoalkyl salicylamidato ligands in a 4:3 ratio in methanol. With a short (propyl) alkyl substituent, additional chloride counter ions are included in the cavity by occupation of one apex ...

Novel magnetite nanorods decorated Si-Schiff base complex for efficient immobilization of U(VI) and Pb(II) from water solutions
A novel silicon Schiff base complex (Si-SBC) and magnetite nanorods decorated Si-SBC (M/SiO2-Si-SBC) were synthesized and well characterized in detail. The synthesized materials were applied for the removal of U(VI) and Pb(II) from water solutions under various experimental conditions. The monolayer...

In Silico Study of Bombyx Mori Fibroin Enhancement by Graphene in Acidic Environment
Bombyx Mori Fibroin has been widely used long time ago and becoming popular materials. Here, we carry out the Molecular Dynamics simulation based docking simulation of small fragment of graphene in order to seek for the best binding position on the N-termini domain of Bombyx Mori fibroin. We report ...

Design Concepts in Absorbance Optical Systems for Analytical Ultracentrifugation
Analytical ultracentrifugation is a powerful technique for analyzing particles in solution, and has proved valuable for a wide range of applications in chemistry, biochemistry and material sciences for many years. The field is presently seeing a resurgence of instrument development from commercial a...

Molecular dynamics simulation of the electrical conductive network formation of polymer nanocomposites with polymer-grafted nanorod
Grafting chains on the surface of filler is an effective strategy to tune and control the filler conductive network, which can be utilized to fabricate polymer nanocomposites (PNCs) with high electrical conductivity. In this work, by employing the coarse-grained molecular dynamics simulation, we inv...

Synthesis of cationic molybdenum-cobalt heterometallic clusters protected against hydrolysis by macrocyclic triazacyclononane complexes
Four kinds of cobalt-polyoxomolybdenum clusters were synthesized by a combination of polyoxomolybdates and a Co-tacn (tacn = 1,4,7-triazacyclononane) complex. The heterometallic polynuclear clusters were obtained by the reaction of Na2MoO4 and [Co(tacn)(H2O)3](CF3SO3)3∙H2O in aqueous solution. The p...

A novel mechanism for user-friendly and self-activated microdroplet generation capable of programmable control
Unlike conventional approaches that require bulky and expensive pumping equipment, herein, we present a simple method for self-activated microdroplet generation and transport inside a long microchannel. The high gas-pressure in the syringes is used to provide the built-in power of self-priming so th...

Kinetic barriers to [small alpha]-synuclein protofilament formation and conversion into mature fibrils
Oligomeric and protofibrillar aggregates that are populated along the pathway of amyloid fibril formation appear generally to be more toxic than the mature fibrillar state. In particular, α-synuclein, the protein associated with Parkinson's disease, forms kinetically trapped protofibrils in the pres...

Direct water-based synthesis and characterization of new Zr/Hf-MOFs with dodecanuclear clusters as IBU
Two new metal-organic framework compounds of composition [M12(μ3-O)8(μ3-OH)8(μ-OH)6(OH)6(H2O)6(APDC)6], with M = Zr and Hf denoted as M-CAU-39, containing the azopyridinedicarboxylate ion (APDC2-) as a new linker, were obtained by a water based synthesis. The crystal structure was determined from po...


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33