Preparation and Structural Characterisation of Triaryl Metal(V) Complexes (M = As, Sb) of Tri-and Tetradentate Schiff Bases

Siddiqui, R.; Raj, Prem; Saxena, A. K.; Dixit, S. K.

doi:10.1080/00945719608004361

Cited by 24 publications

(10 citation statements)

References 14 publications

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“…The same result was confirmed by the IR spectra. The presence of a sharp singlet for the -C(H)=N proton in the Schiff bases (8.26-8.60 p.p.m) clearly indicates that the magnetic environment is equivalent for all such protons, suggesting the presence of a planar ligand in these complexes [16]. The multiples of the aromatic protons appeared within the range of 6.56-7.75 p.p.m (Table 3) and they are weakly affected by chelation.…”

Section: Nmr Spectramentioning

confidence: 95%

Nickel(II) salophen-type complexes characterization and their thermodynamic studies with diorganotin(IV) dichlorides in chloroform

Asadi

Jamshid

Kyanfar

2007

Transition Met Chem

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A u.v.-vis spectrophotometric study of the adduct formation of the nickel(II) Schiff base complexes,([NiL]) where L = [3-methoxysalophen, N,N¢-bis(3-methoxysalicylidene)-1,2-phenylenediimine] (1), [4-methoxysalophen, N,N¢-bis(4-methoxysalicylidene)-1,2-phenylenediimine] (2), [5-methoxysalophen, N,N¢-bis(5-methoxysalicylidene)-1,2-phenylenediimine] (3) and [Salophen, [N,N¢-bis(salicylaldehydo)-1,2-phenylenediimine] (4) as donors with R 2 SnCl 2 (R = methyl, phenyl and n-butyl) as acceptors have been investigated in chloroform, as solvent. Adducts have been characterized by 1 H, 13 C and 119 Sn NMR, IR and electronic spectroscopy and CHN elemental microanalysis. The formation constants and the thermodynamic free energies were measured using u.v.-vis spectrophotometry titration for 1:1 adduct formation at various temperatures (T = 278 to 308 K). The trend of the adduct formation of the nickel Schiff base complexes with a given tin acceptor decreases as follows: Nið3; 4; 5-MeOSalophenÞ>Ni(Salophen) and Nið4-MeOSalophenÞ>Nið3-MeOSalophenÞ>Nið5-MeOSalophenÞ

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Section: Nmr Spectramentioning

confidence: 95%

Nickel(II) salophen-type complexes characterization and their thermodynamic studies with diorganotin(IV) dichlorides in chloroform

Asadi

Jamshid

Kyanfar

2007

Transition Met Chem

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“…Multidentate ligands constitute an interesting class of nitrogen and sulphur containing ligands and a large amount of work has been reported on the metal complexes of these ligands [8][9][10][11][12][13][14][15][16]. A survey of the literature reveals that almost no work so far has been reported on organoarsenic(III) derivatives of tetradentate ligands having Ν and S donor atoms.…”

Section: Inroductionmentioning

confidence: 99%

Synthesis and Characterisation of Some New Monophenylarsenic(iii) Drivatives of Sterically Hindered Bifunctional Tetradentate Ligands

Sharma¹,

Singh²,

Audhesh³

2000

Main Group Metal Chemistry

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“…These bands are included in the 300073420 cm À1 range and are due to n(H À À O) of H 2 O in all of the complexes 8 . These bands are included in the 300073420 cm À1 range and are due to n(H À À O) of H 2 O in all of the complexes 8 .…”

Section: Ir Spectramentioning

confidence: 99%

Synthesis, Characterization, and Antitumor Activity of Some Trivalent Lanthanide Complexs With 2-Formylphenoxyacetic Acid Thiosemicarbazone

Yang

Qingxiang

et al. 2002

Synthesis and Reactivity in Inorganic and Metal-Organic Chemist

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Some trivalent lanthanide complexes of the type [Ln(FAT) 3 ]Á2H 2 O, where Ln ¼ La, Ce, Pr, Nd, Sm, Eu, HFAT ¼ 2-formylphenoxyacetic acid thiosemicarbazone, have been synthesized. The data of elemental analyses, IR, UV, 1 H NMR and high resolution mass spectra show that the ligand coordinates to the metal ion via -C¼N-, -O-and -COO À groups in the molar ratio of 3:1. All complexes are insoluble in common organic solvents except DMF and DMSO. Dehydration studies indicate that for all complexes the water molecules are held in the lattice rather than take part in coordination.

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Preparation and Structural Characterisation of Triaryl Metal(V) Complexes (M = As, Sb) of Tri-and Tetradentate Schiff Bases

Cited by 24 publications

References 14 publications

Nickel(II) salophen-type complexes characterization and their thermodynamic studies with diorganotin(IV) dichlorides in chloroform

Nickel(II) salophen-type complexes characterization and their thermodynamic studies with diorganotin(IV) dichlorides in chloroform

Synthesis and Characterisation of Some New Monophenylarsenic(iii) Drivatives of Sterically Hindered Bifunctional Tetradentate Ligands

Synthesis, Characterization, and Antitumor Activity of Some Trivalent Lanthanide Complexs With 2-Formylphenoxyacetic Acid Thiosemicarbazone

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