نتایج جستجو برای: transfer complexes

تعداد نتایج: 420788  

Journal: :Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2011
Moamen S Refat Hosam A Saad Abdel Majid A Adam

A two new charge transfer complexes formed from the interactions between o-tolidine (o-TOL) and picric (PA) or chloranilic (CA) acids, with the compositions, [(o-TOL)(PA)(2)] and [(o-TOL)(CA)(2)] have been prepared. The (13)C NMR, (1)H NMR, (1)H-Cosy, and IR show that the charge-transfer chelation occurs via the formation of chain structures O-H⋯N intermolecular hydrogen bond between 2NH(2) gro...

Journal: :The Journal of chemical physics 2013
Benjamin Freyer Flavio Zamponi Vincent Juvé Johannes Stingl Michael Woerner Thomas Elsaesser Majed Chergui

The transient electronic and molecular structure arising from photoinduced charge transfer in transition metal complexes is studied by X-ray powder diffraction with a 100 fs temporal and atomic spatial resolution. Crystals containing a dense array of Fe(II)-tris(bipyridine) ([Fe(bpy)3](2 +)) complexes and their [Formula: see text] counterions display pronounced changes of electron density that ...

Journal: :Cold Spring Harbor protocols 2012
Atsushi Miyanohara

The fusiogenic envelope G glycoprotein of the vesicular stomatitis virus (VSV-G) that has been used to pseudotype retrovirus and lentivirus vectors can be used alone as an efficient vehicle for gene transfer. VSV-G protein is secreted into the culture medium as sendimentable vesicles from cells transfected with a VSV-G expression plasmid in the absence of other viral components. The VSV-G vesic...

The aim of this study was to investigate the interaction modification of curcumin complex molecule (CUR) in beta- and gamma-cyclodextrin (β-CD and γ-CD) carriers with chitosan (CS) nanoparticles for targeted drug delivery and to compare their performance. The targeted drug delivery system includes the therapeutic agent of the CS nanoparticles targeting section of the same drug and the CD carrie...

Journal: :Current opinion in green and sustainable chemistry 2021

Transfer hydrogenation processes catalyzed by manganese organometallic complexes are comprehensively reviewed. The reaction scope includes the reduction of aldehydes, ketones, imines, polyaromatic nitrogen heterocycles, esters, nitriles, and semihydrogenation internal alkynes. Special attention is devoted to ligand design for Mn-catalyzed asymmetric transfer prochiral ketones leading enantiomer...

Journal: :Nano letters 2014
T Choi M Badal S Loth J-W Yoo C P Lutz A J Heinrich A J Epstein D G Stroud J A Gupta

The magnetic properties of molecular structures can be tailored by chemical synthesis or bottom-up assembly at the atomic scale. We used scanning tunneling microscopy to study charge and spin transfer in individual complexes of transition metals with the charge acceptor, tetracyanoethylene (TCNE). The complexes were formed on a thin insulator, Cu2N on Cu(100), by manipulation of individual atom...

Journal: :Nature nanotechnology 2011
Grigory Tikhomirov Sjoerd Hoogland P E Lee Armin Fischer Edward H Sargent Shana O Kelley

The electronic and optical properties of colloidal quantum dots, including the wavelengths of light that they can absorb and emit, depend on the size of the quantum dots. These properties have been exploited in a number of applications including optical detection, solar energy harvesting and biological research. Here, we report the self-assembly of quantum dot complexes using cadmium telluride ...

Journal: :Dalton transactions 2009
Meryn L Bowen Zhen-Feng Chen Adrienne M Roos Ripen Misri Urs Häfeli Michael J Adam Chris Orvig

A series of five glucosamine-conjugated organometallic complexes of the tricarbonyl cores of technetium-99m and rhenium were made. Glucosamine was derivatized at the C-2 nitrogen with long chain alkyl spacers linked to either pyridyl-tert-nitrogen-phenol tridentate chelates or cyclopentadienyl ligating groups. The metal complexes of the tridentate ligands were formed by refluxing with [Re(CO)(3...

Journal: :npj computational materials 2021

Abstract As a unique class of molecular electronic materials, organic donor–acceptor complexes now exhibit tantalizing prospect for heat–electricity interconversion. Over the past decades, in design these materials thermoelectric applications, consistent efforts have been made to synthesize wide variety structures and characterize their properties. However, hitherto, one paramount conundrums, n...

Journal: :Crystals 2022

Since the pioneering work concerning organic semiconductors in middle of 1900s, conductor research has experienced a series milestones, from metallic to superconducting charge-transfer complexes (1980s–1990s) [...]

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