17867-37-7

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• 578-66-5 8-amino quinoline 
• 90-02-8 salicylaldehyde 

Relevant academic research and scientific papers

Sn(iv) Schiff base complexes: Triplet photosensitizers for photoredox reactions

We present the synthesis and characterization of a series of four fluorescent Sn(iv) Schiff base complexes, which also possess long-lived triplet excited states. The complexes absorb visible light (λmax = 420 to 462 nm) and the optical properti

Mono- and di-nuclear nickel(ii) complexes derived from NNO donor ligands: Syntheses, crystal structures and magnetic studies of dinuclear analogues

The present report deals with the synthesis and structural characterisation of a mononuclear (1), a di(phenoxido)-bridged dinuclear (2) and a phenoxido/azide bridged dinuclear (3) nickel(ii) complexes derived from NNO donor Schiff base ligands. Structural

Aluminum(III) induced green luminescence for naked eye detection: Experimental and computational studies

Al(III) has extensive use in modern day life, however excess Al(III) can induce several health hazards, leading to Alzheimer's or Parkinson's diseases. So, easy determination of Al(III) in biological samples is highly relevent. A group of three probes, (4

Aromatic planar Schiff-base copper complex and preparation method and application thereof

The invention discloses an aromatic planar Schiff-base copper complex. The chemical formula of the aromatic planar Schiff-base copper complex is [CuL(H2O)](ClO4)-H2O, wherein L is 8-aminoquinoline salicylidene Schiff-base, and ClO4 is perchlorate. The pre

A family of readily synthesised phosphorescent platinum(ii) complexes based on tridentate: N^N^O -coordinating Schiff-base ligands

The synthesis and photophysical properties of 22 platinum(ii) complexes featuring N^N^O-coordinating ligands are described. The complexes have the form Pt(N^N^O-Ln)Cl (n = 1 to 20). The tridentate ligands comprise lateral pyridine and phenolate rings, offering the metal N and O coordination respectively, linked via an imine or hydrazone unit that provides a further, central N atom for coordination. The proligands HLn, some of which have previously been reported for the coordination of 1st row transition metal ions in other contexts, are Schiff bases that are readily synthesised by condensation of salicylaldehydes either with 8-aminoquinoline (to generate imine-based ligands HL1-4) or with 2-hydrazinopyridines (to generate hydrazone-based proligands HL5-20). The Pt(ii) complexes are prepared under mild conditions upon treatment of the proligands with simple Pt(ii) salts. Metathesis of the chloride ligand by an acetylide is possible, as exemplified by the preparation of two further complexes of the form Pt(N^N^O-Ln)(-CC-Ar), where Ar = 3,5-bis(trifluoromethyl)phenyl. Nine of the complexes have been characterised in the solid state by X-ray diffraction. The imine-based complexes have intense low-energy absorption bands around 520 nm attributed to charge-transfer transitions. They display deep red phosphorescence in solution at ambient temperature, with λmax in the range 635-735 nm, quantum yields up to 4.6% and lifetimes in the microsecond range. The hydrazone complexes that feature a py-NH-NC-Ar linker display pH-dependent absorption spectra owing to the acidity of the hydrazone NH: these complexes have poor photostability in solution. In contrast, their N-methylated analogues (i.e., py-NMe-NC-Ar) show no evidence of photodecomposition. They are phosphorescent in solution at room temperature in the 600-640 nm region, the emission maximum being influenced by substituents in the phenolate ring. The results show how simply prepared tridentate Schiff base ligands-which offer the metal a combination of 5- and 6-membered chelate rings-can provide access to phosphorescent Pt(ii) complexes that have superior emissive properties to those of terpyridines, for example.

Photocytotoxic Copper(II) Complexes with Schiff-Base Scaffolds for Photodynamic Therapy

Photodynamic therapy (PDT) is a promising and minimally invasive method for the treatment of superficial diseases, and photosensitizers with high phototoxicity indices (defined as (IC50dark)/(IC50irradiation)) a

Cascade Reaction by Chemo- and Biocatalytic Approaches to Obtain Chiral Hydroxy Ketones and anti 1,3-Diols

A chemo- and biocatalytic cascade approach was applied for the stereoselective synthesis of hydroxy ketones and the corresponding 1,3-diols. A new class of tridentate N,N,O ligands was used with copper(II) complexes for the asymmetric β-borylation of α,β-unsaturated compounds. The complex containing ligand L5 emerged as the best performer, and it gave the organoborane derivatives with good ee values. The corresponding keto–alcohol compounds were then bioreduced by yeasts. The biotransformation set up with Rhodotorula rubra allowed (R)-keto–alcohols and (S,S)-diols to be obtained with up to 99 % ee and up to 99 % de in favor of the anti enantiomers.

Fluorescent probe for identifying zinc ions and preparation method and application thereof and membrane material for identifying zinc ions and preparation method thereof

The invention relates to a fluorescent probe for identifying zinc ions and a preparation method and application thereof and a membrane material used for identifying the zinc ions and a preparation method thereof, and belongs to the technical field of fluo

Syntheses, structures and anticancer activity of NNO-tridentate Schiff base copper(II) complexes

A series of heteroleptic copper(II) complexes [Cu(RQYMP )(Py]] (1a-4d) supported on NNO-tridentate Schiff base (RQYMP-H) and bipyridine (Py = bpy, a; phen, b; dpq, c; dppz, d ) co-ligands have been synthesized and characterized. X-ra

The enhanced catalytic performance of cobalt catalysts towards butadiene polymerization by introducing a labile donor in a salen ligand

A family of cobalt complexes supported by a tridentate Schiff base ligand with a labile donor (O, S, N) as a pendant arm (Co1-Co12, formulated as CoL 2) were synthesized by the treatment of the corresponding ligands with cobalt acetate tetrahyd