Heteronuclear complexes of oxorhenium(V) with Fe(III), Co(II), Ni(II), Cu(II), Cd(II) and UO<sub>2</sub>(VI) and their biological activities

Mashaly, Mahmoud M.; Ismail, Tarek M.; El-Maraghy, Salah B.; Habib, Hesham A.

doi:10.1080/00958970412331281881

Cited by 16 publications

(6 citation statements)

References 36 publications

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“…The l eff values shown by [Ni(L 1 ) 2 ] and [NiCl(L 2 )(HL 2 )] AE 3H 2 O at room temperature (3.1 and 3.2 BM, respectively) can be ascribed to octahedral coordination environments [23][24][25]. The diffuse reflectance spectra of [Ni(L 1 ) 2 ] (Fig.…”

Section: Uv-vis and Magnetic Studiesmentioning

confidence: 95%

See 1 more Smart Citation

Complexes of 2-thiophenecarbonyl and isonicotinoyl hydrazones of 3-(N-methyl)isatin.A study of their antimicrobial activity

Rodrı́guez-Argüelles

Mosquera-Vázquez

Tourón-Touceda

et al. 2007

Journal of Inorganic Biochemistry

110

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Section: Uv-vis and Magnetic Studiesmentioning

confidence: 95%

“…The proposed assignments are based on consulted bibliography [24,25,28,29,31] and previous results [1][2][3][4]7]. The coordinative behaviour of HL 1 and HL 2 is difficult to establish, as these ligands (both in anionic or neutral form) could act as O,N,OÀ N,OÀ or N-donors.…”

Section: Ir Spectramentioning

confidence: 99%

Complexes of 2-thiophenecarbonyl and isonicotinoyl hydrazones of 3-(N-methyl)isatin.A study of their antimicrobial activity

Rodrı́guez-Argüelles

Mosquera-Vázquez

Tourón-Touceda

et al. 2007

Journal of Inorganic Biochemistry

110

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“…The Cu( II) complexes7,8 and 9 exhibited a single broad asymmetric band in the region of 630-658 nm ranges corresponding to 2 Eg → 2 T 2 g. The broadness of the band may have been due to dynamic Jahn-Teller distortion. All of these data suggested a distorted octahedral geometry around the Cu(II) ion in case of complex 8 or distorted octahedral leads to square planner geometry around the Cu(II) ion in case of complexes 7 and 9 [42]. As expected, the electronic spectra of the Zn(II) complexes do not furnish any relevant data towards stereochemistry, but on the basis of analytical, conductance, and infrared spectral data, a square planner geometries were proposed for the complexes 10 and 12 of the Zn(II) complexes and octahedral for the complex 11.…”

Section: Electronic Spectral Studiesmentioning

confidence: 99%

“…The Ni(II) complexes 4, 5 , 6 exhibited 2 absorption bands, at 630-645 and 740-768 nm ranges, assignable to 3A 2 g (F) →3T 1 g (F) (ν 2 ) and 3A 2 g (F) →3T 1 g (P) (ν 3 ) transitions, respectively, in an octahedral environment [42]. The Cu( II) complexes7,8 and 9 exhibited a single broad asymmetric band in the region of 630-658 nm ranges corresponding to 2 Eg → 2 T 2 g. The broadness of the band may have been due to dynamic Jahn-Teller distortion.…”

Section: Electronic Spectral Studiesmentioning

confidence: 99%

Synthesis, Characterization, 3D Modeling, Biological Activities of Some Metal Complexes of Novel Sulpha Drug Schiff Base Ligand and Its Nano Cu Complex

Ismail¹

2015

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Abstract:Novel solid Co(II), Ni(II), Cu(II) and Zn(II) complexes of sulpha drug Schiff base ligand (HL) derived from condensation of sulphaquinoxaline and naphthaldehyde namely, 2-{4-[(2-hydroxynaphthalen-1-yl) methyleneamino] benzenesulfonamido} quinoxalin (HNMABSQ), in addition new mixed ligand complexes with 8-hydroxyquinoline (8-HQ) or 1,10 Phenanthroline (1,10 Phen) with HL and these metal (II) ions were synthesized. The structure of complexes were proposed in light of analytical, IR, 1 H-NMR, Mass, UV-Vis, ESR spectral data, magnetic and thermal studies. The molar conductance data reveal that all the metal chelates were non-electrolytes. The kinetic and thermodynamic parameters for decomposition steps in Co(II), Ni(II) and Cu(II) complexes thermo grams were calculated. On the basis of these studies, most complexes have octahedral geometry but few can attain the square planar arrangement. 3D modeling of the ligand and its metal complexes were studied by PM3 method, also the heat of formations, HOMO, LUMO and dipole moments were calculated to confirm the geometry of the ligand and its complexes. Schiff base ligand and its metal complexes were tested for antimicrobial activities. Nano-Cu-Schiff base complex was synthesized and characterized by scanning electron microscopy (SEM) and its biological activities were studied. The Cu nano complex had higher antibacterial and antifungal activity than the ligand and its metal complexes. Also, all tested compounds inhibited the growth of the liver cancer cell.

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“…The coordination numbers ranging from 7 to 12 for metal chelates of UO 2 (VI) and Th(IV) have been reported [ 9 , 10 ]. Recently, it was stated that the UO 2 (VI) complexes show antimicrobial activity [ 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Antibacterial Studies of Mixed Ligand Dioxouranium Complexes with 8-Hydroxyquinoline and Some Amino Acids

2011

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Mixed ligand complexes of dioxouranium (VI) of the type [UO2(Q)(L)·2H2O] have been synthesized using 8-hydroxyquinoline (HQ) as a primary ligand and amino acids (HL) such as L-threonine, L-tryptophan, and L-isoleucine as secondary ligands. The metal complexes have been characterized by elemental analysis, electrical conductance, magnetic susceptibility measurements, and spectral and thermal studies. The electrical conductance studies of the complexes indicate their nonelectrolytic nature. Magnetic susceptibility measurements revealed diamagnetic nature of the complexes. Electronic absorption spectra of the complexes show intraligand and charge transfer transitions, respectively. Bonding of the metal ion through N- and O-donor atoms of the ligands is revealed by IR studies, and the chemical environment of the protons is confirmed by NMR studies. The thermal analysis data of the complexes indicate the presence of coordinated water molecules. The agar cup and tube dilution methods have been used to study the antibacterial activity of the complexes against the pathogenic bacteria S. aureus, C. diphtheriae, S. typhi, and E. coli.

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Heteronuclear complexes of oxorhenium(V) with Fe(III), Co(II), Ni(II), Cu(II), Cd(II) and UO₂(VI) and their biological activities

Cited by 16 publications

References 36 publications

Complexes of 2-thiophenecarbonyl and isonicotinoyl hydrazones of 3-(N-methyl)isatin.A study of their antimicrobial activity

Complexes of 2-thiophenecarbonyl and isonicotinoyl hydrazones of 3-(N-methyl)isatin.A study of their antimicrobial activity

Synthesis, Characterization, 3D Modeling, Biological Activities of Some Metal Complexes of Novel Sulpha Drug Schiff Base Ligand and Its Nano Cu Complex

Synthesis, Characterization, and Antibacterial Studies of Mixed Ligand Dioxouranium Complexes with 8-Hydroxyquinoline and Some Amino Acids

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Heteronuclear complexes of oxorhenium(V) with Fe(III), Co(II), Ni(II), Cu(II), Cd(II) and UO2(VI) and their biological activities

Cited by 16 publications

References 36 publications

Complexes of 2-thiophenecarbonyl and isonicotinoyl hydrazones of 3-(N-methyl)isatin.A study of their antimicrobial activity

Complexes of 2-thiophenecarbonyl and isonicotinoyl hydrazones of 3-(N-methyl)isatin.A study of their antimicrobial activity

Synthesis, Characterization, 3D Modeling, Biological Activities of Some Metal Complexes of Novel Sulpha Drug Schiff Base Ligand and Its Nano Cu Complex

Synthesis, Characterization, and Antibacterial Studies of Mixed Ligand Dioxouranium Complexes with 8-Hydroxyquinoline and Some Amino Acids

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Heteronuclear complexes of oxorhenium(V) with Fe(III), Co(II), Ni(II), Cu(II), Cd(II) and UO₂(VI) and their biological activities