نتایج جستجو برای: heterobimetallic compound

تعداد نتایج: 128278  

Journal: :Chemistry 2015
Flavia Artizzu Francesco Quochi Luciano Marchiò Raquel Fonseca Correia Michele Saba Angela Serpe Andrea Mura Maria Laura Mercuri Giovanni Bongiovanni Paola Deplano

A unique example of discrete molecular entity Nd(y)Er(x)Yb(3-(x+y))Q9 (1) (Q = quinolinolato) containing three different lanthanides simultaneously emitting in three different spectral regions in the NIR, ranging from 900 to 1600 nm, has been synthesized and fully chararacterized. A simple molecular strategy based on tuning metal composition in the Ln3Q9 framework, which contains inequivalent c...

Journal: :Chemical science 2015
Olga Ekkert Andrew J P White Harold Toms Mark R Crimmin

We report the addition of M-H bonds (M = Al, Zn, Mg) to a Rh(iii) intermediate generated from the reductive elimination of triethylsilane from [Cp*Rh(H)2(SiEt3)2]. A series of new heterobimetallic complexes possessing Rh-M bonds have been isolated and characterised by a number of spectroscopic (1H, 29Si, 13C, 103Rh NMR, infrared, and X-ray diffraction) and computational techniques (NBO and QTAI...

Journal: :Dalton transactions 2013
Yulia Chapurina Régis Guillot Dmitrii Lyubov Alexander Trifonov Jérôme Hannedouche Emmanuelle Schulz

Chiral alkyl or amido yttrium complexes were prepared from N-silyl- or N-cyclopentyl-substituted binaphthylamido ligands. According to the synthetic procedure, these complexes could be obtained in their neutral form or as heterobimetallic complexes in the presence of 1 equiv. LiCl. These new species were characterized by IR and NMR spectroscopies, elemental analyses and some of them by X-ray di...

Journal: :Chemical science 2013
Christopher Uyeda Jonas C Peters

Heterobimetallic NiZn complexes featuring metal centers in distinct coordination environments have been synthesized using diimine-dioxime ligands as binucleating scaffolds. A tetramethylfuran-containing ligand derivative enables a stable one-electron-reduced S = 1/2 species to be accessed using Cp2Co as a chemical reductant. The resulting pseudo-square planar complex exhibits spectroscopic and ...

Journal: :Inorganic chemistry 2007
Natalia Dalla-Favera Josef Hamacek Michal Borkovec Damien Jeannerat Gianfranco Ercolani Claude Piguet

Statistical mechanics predicts that the design of pure organized heteropolymetallic chains of metal ions bound to linear receptors depends on controlled deviations from the mixing rule DeltaE(MiMj) = 1/2 (DeltaE(MiMi) + DeltaE(MjMj)), whereby DeltaE(MiMj) is the intramolecular intermetallic interaction between neighboring metal i and metal j along the receptor. A thorough investigation of linea...

Journal: :Dalton transactions 2012
Thomas Deschner Michael Klimpel Maxim Tafipolsky Wolfgang Scherer Karl W Törnroos Reiner Anwander

Magnesium silylamide complexes Mg[N(SiHMe(2))(2)](2)(THF)(2) and Mg[N(SiPhMe(2))(2)](2) were synthesized according to transsilylamination and alkane elimination protocols, respectively, utilizing Mg[N(SiMe(3))(2)](2)(THF)(2) and [Mg(n-Bu)](2) as precursors. Cage-like periodic mesoporous silica SBA-1 was treated with donor solvent-free dimeric [Mg{N(SiHMe(2))(2)}(2)](2), [Mg{N(SiMe(3))(2)}(2)](2...

Journal: :Metal-Based Drugs 2008
Margaret A. L. Blackie Kelly Chibale

Over the last decade, a significant body of research has been developed around the inclusion of a metallocene moiety into known antimalarial compounds. Ferroquine is the most successful of these compounds. Herein, we describe our contribution to metallocene antimalarials. Our approach has sought to introduce diversity sites in the side chain of ferroquine in order to develop a series of ferroqu...

2007
Jillian Lee Dempsey Rick L. Danheiser Daniel G. Nocera

A novel, three-coordinate gold(I) dimer, Au2(tfepm)3Cl2 (la, lb), was synthesized and structurally characterized. Four gold(I)-rhodium(I) heterobimetallic complexes, AuIRh'(tBuNC) 2(-dppm) 2C12 (2), Au'Rh'( tBuNC) 2 (u-dmpm) 2Cl 2 (3), Au'Rh'( tBuNC) 2(,utfepm)2 C12 (4), and AuIRh(tBuNC) 2(u-tfepma)2Cl2 (5) were synthesized and 2, 3, and 5 were crystallographically characterized. Absorption spe...

Journal: :Chemcatchem 2021

Though s-block organometallics are indispensable tools in synthetic chemistry, their impact homogeneous catalysis has been small compared to that for transition metals. Surprisingly, however, Group 1 and 2 compounds have recently utilised hydroelementation catalysis. For example, transfer hydrogenation of alkenes alkanes catalysed by (Ca, Sr, Ba) bis-hexamethyldisilazides (HMDS), though reactio...

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