Author
Samiran Mitra
Other affiliations: Heritage Institute of Technology
Bio: Samiran Mitra is an academic researcher from Jadavpur University. The author has contributed to research in topics: Schiff base & Crystal structure. The author has an hindex of 38, co-authored 198 publications receiving 5108 citations. Previous affiliations of Samiran Mitra include Heritage Institute of Technology.
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TL;DR: In this paper, the trinuclear unit is held together by bridging deprotonated phenolic oxygen atoms from the Schiff base and acetate groups, and the structures of the three synthesised complexes have been determined by single-crystal X-ray diffraction.
338 citations
TL;DR: In this paper, three dinuclear Zn(II) complexes [Zn(L)(μ1, 1-N3)Zn (L)(N3)]· 1.5H2O (1),[Zn[L]-(OCH3)(OH)C6H3CHN(CH2)2 N(CH3)2], which is the condensation product of o-vanillin and 2-dimethylaminoethylamine have been synthesized from a potentially tetradentate N2O2-donor Schiff base
149 citations
TL;DR: Compound 1 is the first report of a singly end-to-end cyanate bridged polymeric chain of Cu(II) with a Schiff base as a co-ligand and the magnetic susceptibility data show slight antiferromagnetic coupling for the polymers having J values -0.19 and 0.57 cm(-1) for complexes 1 and 2 respectively.
Abstract: A new tridentate Schiff base ligand HL (L = C14H19N2O), derived from the condensation of benzoylacetone and 2-dimethylaminoethylamine in a 1 ∶ 1 ratio, reacts with copper(II) acetate and cyanate, thiocyanate or azide, to give rise to several end-to-end polymeric complexes of formulae [CuL(µ1,3-NCO)]n1, [CuL(µ1,3-NCS)]n2 and the complex 3 has two crystallographically independent units of formula [CuL(N3)] in the asymmetric unit cell. Complex 3 exists in dimeric form rather than as a polymeric chain. Compound 1 is the first report of a singly end-to-end cyanate bridged polymeric chain of Cu(II) with a Schiff base as a co-ligand. There are many examples of double NCS bridged polymeric chains, but fewer singly bridged ones such as compound 2. We have characterized these complexes by analytical, spectroscopic, structural and variable temperature magnetic susceptibility measurements. The coordination geometry around the Cu(II) centers is distorted square pyramidal for 1 and 2 and square planar for complex 3. The magnetic susceptibility data show slight antiferromagnetic coupling for the polymers having J values −0.19 and −0.57 cm−1 for complexes 1 and 2 respectively. The low values of J are consistent with the equatorial–axial disposition of the bridges in the polymers.
104 citations
TL;DR: A tridentate Schiff base ligand (LH) has been synthesized from 2-hydroxyacetophenone and 2-dimethylaminoethylamine as discussed by the authors, which forms the neutral complexes [Co(L)(N3){o-(CH3CO)C6H4O}] (1) and [Co[L)(SCN]·1/2H2O (2) in presence of equivalent amount of Co(II) acetate, and sodium azide for 1 and sodium thiocyanate for 2).
90 citations
TL;DR: In this paper, the tridentate hydrazone pro-ligand (HPBH) is obtained by the condensation of benzhydrazide and pyridine-2-carboxaldehyde.
88 citations
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TL;DR: This review covers advances in the MOF field from the past three years, focusing on applications, including gas separation, catalysis, drug delivery, optical and electronic applications, and sensing.
Abstract: Metal-organic frameworks (MOFs) represent a new class of hybrid organic-inorganic supramolecular materials comprised of ordered networks formed from organic electron donor linkers and metal cations. They can exhibit extremely high surface areas, as well as tunable pore size and functionality, and can act as hosts for a variety of guest molecules. Since their discovery, MOFs have enjoyed extensive exploration, with applications ranging from gas storage to drug delivery to sensing. This review covers advances in the MOF field from the past three years, focusing on applications, including gas separation, catalysis, drug delivery, optical and electronic applications, and sensing. We also summarize recent work on methods for MOF synthesis and computational modeling.
1,193 citations
TL;DR: In this paper, a review of metal-organic frameworks (MOFs) and porous coordination polymers (PCPs) with selected examples of their structures, concepts for linkers, syntheses, post-synthesis modifications, metal nanoparticle formations in MOFs, porosity and zeolitic behavior for applications in gas storage for hydrogen, carbon dioxide, methane and applications in conductivity, luminescence and catalysis.
Abstract: This review (over 380 references) summarizes metal–organic frameworks (MOFs), Materials Institute Lavoisier (MILs), iso-reticular metal–organic frameworks (IR-MOFs), porous coordination networks (PCNs), zeolitic metal–organic frameworks (ZMOFs) and porous coordination polymers (PCPs) with selected examples of their structures, concepts for linkers, syntheses, post-synthesis modifications, metal nanoparticle formations in MOFs, porosity and zeolitic behavior for applications in gas storage for hydrogen, carbon dioxide, methane and applications in conductivity, luminescence and catalysis.
1,017 citations
TL;DR: In this article, the authors present a compendium of all relevant ligands that have been employed to generate coordination polymers and metal-Organic Frameworks (MOFs), and three representative examples for each category are described in detail.
839 citations
01 Jan 2008
TL;DR: The recent achievement of oxaliplatin for the treatment of colon cancer should not belie the imbalance between a plethora of investigated complexes and a very small number of clinically approved platinum drugs.
Abstract: Triggered by the resounding success of cisplatin, the past decades have seen tremendous efforts to produce clinically beneficial analogues. The recent achievement of oxaliplatin for the treatment of colon cancer should, however, not belie the imbalance between a plethora of investigated complexes and a very small number of clinically approved platinum drugs. Strategies opening up new avenues are increasingly being sought using complexes of metals other than platinum such as ruthenium or gallium. Based on the chemical differences between these metals, the spectrum of molecular mechanisms of action and potential indications can be broadened substantially. Other approaches focus on complexes with tumour-targeting properties, thereby maximizing the impact on cancer cells and minimizing the problem of adverse side effects, and complexes with biologically active ligands.
698 citations
TL;DR: The 10th edition of CrystEngComm as mentioned in this paper highlighted the state-of-the-art of crystal engineering and new trends and developing areas in crystal engineering, such as intermolecular interactions, metal-organic frameworks or coordination polymers; polymorphism and solvates.
Abstract: The articles published in the tenth anniversary issue of CrystEngComm are reviewed. The issue highlighted the state-of-the-art of crystal engineering and new trends and developing areas in crystal engineering. In particular, the following article emphasises developments in the areas of intermolecular interactions, notably hydrogen and halogen bonds; metal–organic frameworks or coordination polymers; polymorphism and solvates.
674 citations