نتایج جستجو برای: coordination compounds

تعداد نتایج: 301536  

2004
Swapan K Pati

We propose new methodologies for stabilizing all-metal antiaromatic clusters like: Al4Li4. We demonstrate that these all-metal species can be stabilized by complexation with 3d-transition metals very similar to its organic counterpart, C4H4. Complexation to transition metal ions reduce the frontier orbital energies and introduces aromaticity. We consider a series of such complexes [η4(Al4Li4)-F...

2010
Gabriella Tamasi

The crystal structures for metal-oxicam compounds published since the year 2000 are listed and commented in this review. The structural properties are interpreted in order to look for characteristics that might be significant for possible biological activities, for innovative strategies aimed to administering the metal based drugs in vivo. The relevant biological studies are also listed and com...

Journal: :Angewandte Chemie 2014
Dik-Lung Ma Li-Juan Liu Ka-Ho Leung Yen-Ting Chen Hai-Jing Zhong Daniel Shiu-Hin Chan Hui-Min David Wang Chung-Hang Leung

Kinetically inert metal complexes have arisen as promising alternatives to existing platinum and ruthenium chemotherapeutics. Reported herein, to our knowledge, is the first example of a substitutionally inert, Group 9 organometallic compound as a direct inhibitor of signal transducer and activator of transcription 3 (STAT3) dimerization. From a series of cyclometalated rhodium(III) and iridium...

Journal: :Current opinion in chemical biology 2012
Gilles Gasser Nils Metzler-Nolte

Organometallic complexes have unique physico-chemical properties, which have been widely used in homogenous catalysis, for example, for the synthesis of lead compounds and drug candidates. Over the past two decades, a few scientists from all over the world have extended the use of the specific characteristics of these compounds (e.g. structural diversity, possibility of ligand exchange, redox a...

2009
Dimitra Kovala-Demertzi Vaso N. Dokorou Maria Louloudi Anca Silvestru Mavroudis A. Demertzis

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2012
Kazuaki Ohara Kentaro Yamaguchi

Coordination polymer (CP) formation is an unexplored area in weak-interaction chemistry due to the difficulty of monitoring the coordination process. By using cold-spray ionization mass spectrometry (CSI-MS), several kinds of coordination compounds were detected when CuI metal and the 4,7-phenanthroline organic bridged ligand were mixed in solution. The observed ion peaks could be reasonably ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1389

in this thesis, phosphorus ylides [phbppy], [no2bppy] and [brbppy] have been synthesized through the formation of phosphonium salt and dihydrogenation, followed by the reaction of pd(oac)2 and the orthopalladated dinuclear complexes [pd(?-cl)(phbppy)]2, [pd(?-cl)(no2bppy)]2 and [pd(?-cl)(brbppy)]2 have been produced. the reaction of dinuclear complexes and bidentate ligands [l = bipy (2,2-bipyr...

Journal: :Journal of Materials Chemistry C 2021

Structural modification of the aromatic fragment significantly affects Cu(i) coordination compounds’ architectures and photophysical properties.

2013
Marius Andruh Kay Hübner Mathias Noltemeyer Herbert W. Roesky

The reactions o f M n(CF3COO)2 (1) with N,N,N',N'-tetramethylethylenediamine (tmen), 2,2'-bipyridine (bipy) and triethanolamine (tea) yield three new mononuclear coordination compounds: rra«5-[Mn(tmen)2(CF3COO)2] (2), cw-[Mn(bipy)2(C F3COO)2] (3), and [Mn(tea)2](CF3COO)2 (4). The X-ray structures o f the compounds 2, 3, and 4 are described. The seven-coordination o f the manganese(II) ion in 4,...

Journal: :Chirality 2012
Tao Wu Xiao-Peng Zhang Cheng-Hui Li Petr Bouř Yi-Zhi Li Xiao-Zeng You

Novel copper(II) coordination compounds with chiral macrocyclic imine ligands derived from R-/S-camphor were asymmetrically synthesized and characterized with the aid of chiroptical spectroscopies. Crystal structures of both enantiomers were determined by single crystal X-ray diffraction analysis. Circular dichroism (CD) spectra were analyzed using a simplified exciton model as well as quantum ...

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