نتایج جستجو برای: macrocyclic complex

تعداد نتایج: 786655  

Journal: :Chemical communications 2005
Jamespandi Annaraj Yumi Suh Mi Sook Seo Sun Ok Kim Wonwoo Nam

A mononuclear nonheme ferric-peroxo complex bearing a macrocyclic tetradentate N4 ligand, [(TMC)Fe(III)-O2]+, was prepared and used in mechanistic studies of aldehyde deformylation; a catalytic aldehyde deformylation by a nonheme iron(II) complex, [Fe(II)(TMC)]2+, and molecular oxygen is reported as well.

2011
Amit Kumar Tyagi Rajbala Sharma Himanshu Sharma

Present study shows the Rationale behind the synthesis of chelating agents and their thermodynamic stability along with kinetic inertness of metal complex in vivo is the prerequisites for the successful application of bifunctional chelating agentconjugate. Macrocyclic bifunctional chelating agents (BFCs) with their established stabilizing properties are in the forefront for radio-immuno applica...

Journal: :Angewandte Chemie 2022

Abstract A unique family of chiral peraza N 6 ‐macrocyclic ligands, which are conformationally rigid and have a tunable saddle‐shaped cavity, is described. Utilizing their manganese(I) complexes, the first example earth‐abundant transition metal‐catalyzed asymmetric formal anti‐Markovnikov hydroamination allylic alcohols was realized, providing practical access to synthetically important γ‐amin...

Journal: :Inorganics (Basel) 2022

Iodine-dense polyiodide phases are interesting materials for a number of potential uses, including batteries and solid-state conductors. The incorporation transition metal cations is considered promising way to enhance the stability, tune properties, influence architecture polyiodides. However, several metals, Cu(II), may suffer redox processes, which generally make them not compatible with I2/...

2008
Trenton Parsell

A new complex of Chromium(III) and the cross-bridged macrocyclic ligand 4,11-dimethyl-1,4,8,11tetraazabicyclo[6.6.2] hexadecane has been synthesized. Complexation of Tungsten, Vanadium, and Molybdenum was unsuccessful. The Cr(III)(L) complex was characterized using UV-Visible spectroscopy λmax = 583nm , IR Spectroscopy, X-Ray Crystallography, and magnetic susceptibility ueff = 3.95. These tests...

2017
Adrian Glas Eike-Christian Wamhoff Dennis M Krüger Christoph Rademacher Tom N Grossmann

Constraining a peptide in its bioactive conformation by macrocyclization represents a powerful strategy to design modulators of challenging biomolecular targets. This holds particularly true for the development of inhibitors of protein-protein interactions which often involve interfaces lacking defined binding pockets. Such flat surfaces are demanding targets for traditional small molecules ren...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1390

this work is presented in five parts. in the first part preparation of the starting complex [pt(c^n)cl(dmso)], 1, in which c^n = n(1),c(2?)-chelated, deprotonated 2-phenylpyridine, and dmso = dimethylsulfoxide, and its reaction with 1 equiv of the biphosphine ligands bis(diphenylphosphino)amine, dppa, or bis(diphenylphosphino)methane, dppm, to give the complex [pt(c^n)cl(dppa)], 2, or [pt(c^n)c...

Khalilollah Taheri Maryam Davardoost Manesh,

The complexation reaction between hydroxyl ammonium (HONH3+ ) cation with 18-crown-6 (18C6) ligand was studied in dimethylsulfoxide – water (DMSO-H2O), methanol – water (MeOH-H2O) and dimethylformamid – methanol (DMF-MeOH), binary solutions at different temperatures using conductometric method. The obtained results show that the stoichiometry of t...

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