<i>In-situ</i>preparation of macrocyclic complexes of dioxomolybdenum(VI) involving a heterocyclic precursor

Rao, Devendra Pratap; Yadav, Hardeo Singh; Yadava, Ashok Kumar; Singh, Sanjay; Yadav, Uma

doi:10.1080/00958972.2010.544037

Cited by 8 publications

(6 citation statements)

References 21 publications

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“…The Ultraviolet-Vis spectra of tetradentate tetraaza ligand and the dixomolybdenum(VI) complexes were recorded in ethanol and these spectral bands are measured according to reported energy level scheme 49,50 . The spectra of the dixomolybdenum(VI) complexes with tetradentate ligand are similar as one another thereby suggesting a standard structure for all.…”

Section: Uv-visible Spectramentioning

confidence: 99%

New Insights into the Chemistry of cis-Dioxomolybdenum(VI) Schiff Base Complexes with Macrocyclic Ligands

2019

Chem Sci Trans

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Preparation of one parent dioxomolybdenum(VI) complex of formula [MoO 2 (L)](acac) 2 with a Schiff base, obtained from condensation of thenil with 2,3-diamino-5-chloropyridine and four new complexes having formula [MoO 2 (ML)](acac) 2 , derived from cyclization of [MoO 2 (L)](acac) 2 with β-diketones are reported in this research paper. The prepared five dioxomolybdenum(VI) complexes have been described by elemental analyses, molar conductance, UV-Vis, IR, NMR and thermal studies. The feasibility of coordination number of molybdenum metal is six. All five complexes of dioxomolybdenum(VI) have octahedral geometry. The octahedral coordination circle of molybdenum in synthesized dioxomolybdenum complexes is completed by two oxo oxygen atoms and four nitrogen atoms from derived ligand. The shape of synthesized dioxomolybdenum(VI) complexes have distorted octahedral. All the synthesized complexes showed moderate activity against S. aureus and S. typhi, the improvement in the antibacterial activity being explained on the basis of chelation hypothesis.

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Section: Uv-visible Spectramentioning

confidence: 99%

New Insights into the Chemistry of cis-Dioxomolybdenum(VI) Schiff Base Complexes with Macrocyclic Ligands

2019

Chem Sci Trans

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“…The UV-Vis spectra of the tetradentate tetraaza ligand and the dixomolybdenum(VI) complexes had been recorded in ethanol and these spectral bands are consistent with suggested strength energy level scheme. 71,72 The spectra of the dixomolybdenum(VI) complexes with tetradentate ligand are comparable to each other thereby suggesting a common structure for all. In view of the fact that Mo(VI) ion has no d-electron, the absorption bands of pure d-d origins are not expected to appear.…”

Section: Resultsmentioning

confidence: 85%

SYNTHESIS AND STUDIES OF SOME cis- MoO2(VI) COMPLEXES WITH NITROGEN DONOR MACROCYCLIC LIGANDS

Gautam¹,

Singh²,

Saxena³

et al. 2019

ECB

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“…UV-visible spectra: The ultraviolet-visible spectra of tetradentate tetraaza ligand and dixomolybdenum(VI) complexes were noted in ethanol. These electronic bands are construed according to reported vitality plan [49,50]. The spectra in the dioxomolybdenum(VI) complexes with tetradentate ligand are similar to be able to the other thereby suggesting a new uniform Intra-ligand transition and n → π * /π → π * transitions may occur in synthesized complexes.…”

Section: Resultsmentioning

confidence: 91%

Synthesis and Antibacterial Activity of Novel Molybdenum Complexes with Macrocyclic Schiff Base Derived from Furanylethanedione

et al. 2019

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A new MoO2(VI) complex of formulation [MoO2(L)](acac)2 prepared by a Schiff base, synthesized via reaction of di-2-furanylethanedione with 5-chloropyridine-2,3-diamine and four new MoO2(VI) complexes having formule [MoO2(ML)](acac)2, derived from cyclization of [MoO2(L)](acac)2 with β-diketones are reported in this work. The synthesized MoO2(VI) complexes were characterized on the basis of various analyses like thermal studies, UV-Vis, elemental analyses, NMR, IR and molar conductance. The coordination number of molybdenum metal is six. All the MoO2(VI) complexes have distorted octahedral structure in which Mo atom is coordinated with two O-atoms and four N-atoms. All the complexes show moderate activity against S. typhi and S. aureus. Advancement in the antibacterial task is thought to be of chelation speculation.

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In-situpreparation of macrocyclic complexes of dioxomolybdenum(VI) involving a heterocyclic precursor

Cited by 8 publications

References 21 publications

New Insights into the Chemistry of cis-Dioxomolybdenum(VI) Schiff Base Complexes with Macrocyclic Ligands

New Insights into the Chemistry of cis-Dioxomolybdenum(VI) Schiff Base Complexes with Macrocyclic Ligands

SYNTHESIS AND STUDIES OF SOME cis- MoO2(VI) COMPLEXES WITH NITROGEN DONOR MACROCYCLIC LIGANDS

Synthesis and Antibacterial Activity of Novel Molybdenum Complexes with Macrocyclic Schiff Base Derived from Furanylethanedione

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