Journal ArticleDOI
Thermal and Spectral Studies on New Complexes of 7-Carboxaldehyde-8-Hydroxyquinoline and Some Substituted Derivatives of Its Schiff Bases
TLDR
A series of complexes formed by the interaction of UO2 (AcO)2 and some potentially bidentate ligands, aniline, o-hydroxy, carboxaldehyde, 8- hydroxyqvinoline abbreviated as ML1, H2L2, H 2L3, HL4, HL5 and HL6, respectively, have been synthesized as mentioned in this paper.Abstract:
A series of complexes formed, by the interaction of UO2 (AcO)2. 2H2 O and some potentially bidentate ligands, aniline, o-hydroxy, o-carboxy, o-chloro, o-methoxy and o-methylaniline-7- carboxaldehyde-8- hydroxyqvinoline abbreviated as ML1., H2L2, H2L3, HL4, HL5 and HL6, respectively, viated as HL1 H2L2, H2L3., HL4., HL5., and HL6, respectively have been synthesized. The products wre characterized by elemental analyses, magnetic moments and spectral measurements. All the ligands behave as monobasic bidentate chelating agents coordinating to the uranium(VI) ion via the deprotonated phenolic OH and aldehydic oxygen and/or azomethine nitrogen. Thermal stabilities of the ligands and complexes have been s tudied using thennogravimetric analysis (TGA).read more
Citations
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Stereochemistry of uranyl complexes of new heterocyclic nitrogen containing aldehydes. i. novel relationship for o-u-o frequencies center
TL;DR: In this paper, a relation between symmetric V1 and asymmetric v3 O-U-O frequencies independent on the masses of oxygen (Mo) and uranium (Mu) atoms was proposed.
Journal ArticleDOI
Stereochemistry of new nitrogen containing heterocyclic aldehyde. IX. Spectroscopic studies on novel mixed-ligand complexes of Rh(III)
TL;DR: An octahedral structure is proposed for all the new complexes in which chloride is attached to the metal ion in 1:1; 1:2 (metal:ligand) ratio.
Journal ArticleDOI
Polymer complexes: 25. Complexing ability of poly(5-vinylsalicylidene-2-aminopyridine) towards different metal(ii) salts
TL;DR: In this article, the polymer homopolymer of poly(5-vinylsalicylidene-2-aminopyridine) was shown to give mononuclear and binuclear complexes.
Journal ArticleDOI
Polymer complexes. Part XXVI—Novel mixed ligand poly-(5-vinyl salicylidene)-1,2-diaminobenzene complexes
TL;DR: In this article, a series of transition metal complexes derived from poly-(5-vinyl salicylidene)-1,2-diaminobenzene (PVSB) in the presence of pyridine has been prepared as a tridentate and/or bidentate monobasic Schiff base homopolymer of ONN or ON type.
Journal ArticleDOI
Stereochemistry of new nitrogen containing heterocyclic aldehyde. VIII. Spectral and coordination modes of mixed-ligand of novel ruthenium(III) complexes
TL;DR: These complexes were characterized by a combination of elemental analysis, IR, magnetic susceptibility measurements, 1H, 13C NMR and electronic spectral analysis methods to compute the important ligand field parameters B, beta and Dq.
References
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Journal ArticleDOI
The electronic structure, spectra, and magnetic properties of actinyl ions: Part I. The uranyl ion
Sean P. McGlynn,J.K. Smith +1 more
TL;DR: In this paper, the 1-electron MO energy levels of UO2++ have been calculated using rough estimates of overlap integrals of a set of a Slater orbitals presumed to correspond to the relevant oxygen and uranium atomic orbitals.
Journal ArticleDOI
Pyridine-2-carbaldehyde 2-hydroxybenzoylhydrazone as a selective reagent for the extraction and spectrophotometric determination of iron(II)
TL;DR: Pyridine-2-carbaldehyde 2-hydroxybenzoylhydrazone reacts with iron(II) to produce a green 2:1 complex (λmax. = 640 nm, Iµ= 3.64 × 103 l mol-1 cm-1 in aqueous ethanolic solution, and λmax.