3172-43-8

Upstream product

• 90-02-8 salicylaldehyde 
• 92-87-5 p,p'-diaminobiphenyl 
• 89-95-2 2-methyl-benzyl alcohol 

Downstream Products

• 90-02-8 salicylaldehyde 
• 92-87-5 p,p'-diaminobiphenyl 
• 7647-01-0 hydrogenchloride 

Relevant academic research and scientific papers

Salicylaldimine-bridged dinuclear cyclopalladated complexes: Synthesis, characterization and BSA binding studies

Salicylaldimine-bridged dinuclear cyclopalladated complexes were synthesized by the reactions of cyclopalladated chloro dimers [Pd{(4-R)C6H3CH=N-C6H3–2,6-i-Pr2}(μ-Cl)]2 (R = H; OMe) with sa

Organocatalyzed and mechanochemical solvent-free synthesis of novel and functionalized bis-biphenyl substituted thiazolidinones as potent tyrosinase inhibitors: SAR and molecular modeling studies

Eluding the involvement of solvents in organic synthesis and introducing environment friendly procedures can control environmental problems. A facile and an efficient solvent free mechanochemical method (grinding) is achieved to synthesize novel bis-biphe

Biphenyl bridge binuclear iron complex and preparation method and using method thereof

The invention relates to biphenyl bridge binuclear iron complex and a preparation method and a using method thereof. According to the technical scheme, benzidine and substituted salicylaldehyde react to prepare a ligand L, and then the ligand L reacts wit

Synthesis, characterization and electrochemical behavior of Co II, NiII and CdII complexes with N 2O2 donor ligands derived from 4,4′-diaminobiphenyl and 2-hydroxybenzaldehyde or 2,4-dihydroxybenzalde

The condensation of 2-hydroxybenzaldehyde or 2,4-dihydroxybenzaldehyde with 4,4′-diaminobiphenyl in absolute EtOH in a molar ratio 2:1 gave, respectively, the Schiff base ligands H2L1 or H2L2. The bases served as tetradentate ligands

Synthesis, structure and reactivity of oxovanadium(IV) schiff base complexes

Oxovanadium(IV) complexes with schiff bases, viz., N,N′-bis(2-hydroxy benzylidene)benzidine (HBB), N,N′-bis(2-hydroxy benzylidine)-p- phenylenediamine (HBP) and cinnamylidene-2-aminophenol (CAPh) have been synthesized and characterized by elemental analysis, molar conductance, electronic spectra, FT-IR, 1H-NMR, ESR, FAB mass, thermal and magnetic susceptibility measurements. FAB mass and thermal data show degradation pattern of the complexes. Square pyramidal geometry has been proposed for the complexes. The reactivity and substitution behaviour of the synthesized complexes have also been studied. Solid-state A.C. electrical conductivity studies reflect semiconducting nature of the complexes. The crystal system, lattice parameters, unit cell volume and number of molecules in unit cell of [VO(HBB)(H2O)2] complex have been determined by XRD, suggesting that the [VO(HBB)(H2O)2] complex crystallizes as tetragonal crystal system.

The X-ray structure of bis(salicylidene)-4,4′-biphenylenediamine

The X-ray structure of the. Schiff base compound bis(salicylidene)-4,4′-biphenylenediamine (I) has been determined. Crystallographic results are: C26H20N2O2, triclinic, Z P1 = 2, a = 6.141(2) A, b = 7.213(1)A, c = 22.219(5)A, α = 84.60(2)°, β = 88.81(2)°, γ = 89.98(2)°. There are two independent molecules in the unit cell, neither of which is planar. The molecules pack with a somewhat unusual pattern with the aromatic rings of adjacent molecules oriented about half-way between the expected face-to-face or edge-to-face arrangements.

Ruthenium(II)/(in) bipyridine heterochelates incorporating phenolato imine functionalities. Synthesis, crystal structure, spectroscopic and electron-transfer properties and solution reactivities

A new class of ruthenium-bipyridine complexes of the type [Ru(bpy)2(L′)]CIO4 [bpy = 2, 2′-bipyridine; L′ = OC6H3(R)C(R′)=NH; R = R′ = H la; R = H, R′ = CH3 lb; R = NO2, R′ = H le] have been synthesized via cleavage of N-N and N-C (aliphatic and aromatic) bonds of binucleating imine functionalities. The formation of 1 has been authenticated by the single crystal structure determination of la. The complexes exhibit strong MLCT transitions in the visible region and intraligand transitions in the UV region and display moderately strong emission near 700 nm. The quantum yield () of the emission process at 77 K (EtOH-MeOH, 4:1 glass) varies in the range 2.2 × 10-2-6.5 × 10-3 depending on L′ in 1. The complexes show ruthenium(iii)-ruthenium(n) and ruthenium(iv)ruthenium(ni) oxidations in the ranges 0.52-0.77 and 1.71-1.97 V versus SCE respectively. For la and Ib, one ligand centred oxidation near 2 V and for all the complexes two bipyridine based reductions have been detected in the ranges - 1.51 to -1.56 V and -1.72 to -1.79 V versus SCE. Coulometric oxidation of 1 initially generates the unstable trivalent one-electron paramagnetic [Ru"′(bpy)2(L′)]2+ congener, 1+. The complexes 1+ display one broad and moderately strong LMCT band near 750 nm and intraligand transitions in the UV region. The oxidised complexes 1+ exhibit rhombic EPR spectra at 77 K which have been analysed to furnish values of distortion parameters (A = 4543-5923 cm-1, V= 3251-5127 cm′1) and energy of the expected ligand field transitions (v, 3086-3508, V2 6409-8669 cm-1) within the t2 shell. One of the ligand field transitions has been experimentally observed (v2 7092-7812 cm-1). The oxidised species 1+ slowly changes to diamagnetic dimeric species of the type [(bpy)2RuIIIrOC6H 3(R)C(R>NNC(R′)(R)C6H3Cr}Ru III(bpy)2]4+ 2 where the ruthenium(ni) centres are antiferromagnetically coupled. In the presence of water 1+ as well as 2 return to the parent bivalent species 1. The second order rate constants (k) of the conversion process 1+2 in dry acetonitrile and first order rate constants (k′) of 1+→ 1 in ordinary acetonitrile and the thermodynamic parameters (ΔH+ and ΔS+) of both have been determined spectrophotometrically in the temperature range 303-333 K. The Royal Society of Chemistry 2000.

Preparation and Spectral and Magnetic Properties of Some Five-coordinate Binuclear Iron(III) Complexes

Binuclear iron(III) complexes of tetradentate schiff base ligands, derived from the condensation of diamines with pentane-2,4-dione or salicylaldehyde, have been prepared and studied by magnetic and spectral techniques.The electronic spectral data and mag