نتایج جستجو برای: hexadentate

تعداد نتایج: 157  

Journal: :Journal of Molecular Structure 2021

In this work, Aliquat 336 ([Aliquat+]) based ionic liquids containing the fluorinated anion bis(trifluoromethylsulfonyl)imide [NTf2−] was successfully prepared by anionic exchange replacement of chloride anion. The reaction lithium with N-Methyl-N,N,N-trioctylammonium ([N1,8,8,8][Cl] in water lead to corresponding IL, namely ([Aliquat+][NTf2−]). obtained liquid characterized using infrared and ...

Journal: :Dalton transactions 2011
Lorenzo Tei Giuseppe Gugliotta Marianna Fekete Ferenc K Kálmán Mauro Botta

Three novel chelators based on the 6-amino-6-methylperhydro-1,4-diazepine scaffold and possessing three pendant N-acetic or N-α-methylacetic acid have been synthesised. The ligands contain six donor atoms for complexation of Mn(II) ions and thus potentially leave an additional site for coordination of a water molecule. The protonation constants of the ligands and the stability constants of thei...

Journal: :Earthline Journal of Chemical Sciences 2023

The present investigation describes the synthesis and structural study of a metal-zinc ligand [NiL].H2O, which was used to generate trinuclear complex formulated as {Ni(m-L)Na(m-L)Ni}.(SCN)0.6.(Cl)0.4. title compound crystallizes in tetragonal space group I41/acd with following unit cell parameters: = 185403(5) Å, c 51.925(2) V 17849.0(3) Å3, Z 16, R1 0.074 wR2 0.209. Each organic molecule acts...

2016
Olivier Reelfs Vincenzo Abbate Robert C. Hider Charareh Pourzand

Mitochondria are the principal destination for labile iron, making these organelles particularly susceptible to oxidative damage on exposure to ultraviolet A (UVA, 320-400 nm), the oxidizing component of sunlight. The labile iron-mediated oxidative damage caused by UVA to mitochondria leads to necrotic cell death via adenosine triphosphate depletion. Therefore, targeted removal of mitochondrial...

Journal: :The Biochemical journal 2008
Lakshmi D Devanur Robert W Evans Patricia J Evans Robert C Hider

Current iron chelation therapy consists primarily of DFO (desferrioxamine), which has to be administered via intravenous infusion, together with deferiprone and deferasirox, which are orally-active chelators. These chelators, although effective at decreasing the iron load, are associated with a number of side effects. Grady suggested that the combined administration of a smaller bidentate chela...

Journal: :Dalton transactions 2013
Ana C Mendonça André F Martins Andrea Melchior Sérgio M Marques Sílvia Chaves Sandrine Villette Stéphane Petoud Pier Luigi Zanonato Marilena Tolazzi Célia S Bonnet Éva Tóth Plinio Di Bernardo Carlos F G C Geraldes M Amélia Santos

There is a growing interest in the development of new medical diagnostic tools with higher sensibility and less damage for the patient body, namely on imaging reporters for the management of diseases and optimization of treatment strategies. This article examines the properties of a new class of lanthanide complexes with a tripodal tris-3-hydroxy-4-pyridinone (tris-3,4-HOPO) ligand - NTP(PrHP)(...

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