Charge transfer complexes of K vitamins with several classes of antimicrobials

Dozal, A; Keyzer, H.; Kim, H.K; Wang, W.W

doi:10.1016/s0924-8579(99)00163-6

Cited by 97 publications

(17 citation statements)

References 11 publications

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“…The most important feature of this non-covalent interaction is that it is the primary director of the specificity, rate control and reversibility of many biochemical reactions (Foster, 1969). In addition, stoichiometric reaction of the donor and acceptors depends primarily on the nature of the donor and acceptor and, in some cases, on the solvent used (Dozal et al, 2000;Alqaradawi and Nour, 2004;ElDin, 1985).…”

Section: Doripenem (S-4661mentioning

confidence: 99%

Utilization of Charge Transfer and Kinetic Methods for the Determination of Doripenem

Al-Shaalan¹

2012

American Journal of Applied Sciences

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Problem statement:This study presents rapid, uncomplicated and sensitive spectrophotometric techniques for the analysis of doripenem in both its pure and pharmaceutical forms. Approach: The main principle of the approaches and procedures that have been developed is the reaction of doripenem as an n-electron donor to ninhydrin and π-acceptors, such as tetracyanoethylene, 7,7,8,8-tetracyanoquinodimethane, 2,3,5,6-tetrachloro-1,4-benzoquinone, 2,3-dichloro-5,6-dicyano-1,4-benzoquinone and chloranilic acid. The wavelengths 580, 264, 320, 357, 375 and 465 nm was used for measuring the resulting complexes for ninhydrin, chlorine, chloranilic acid, DDQ, TCNQ and TCNE respectively. Results: The suggested procedures for the determination of doripenem were successfully put into practice with good recovery; the percent recovery ranged from 99.31-100.55. Benes-Hildebrand plots were also used to study the association constants and the free energy changes. Conclusion: The results of the CT method agree with those of the kinetic method and there is no significant difference between them.

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Section: Doripenem (S-4661mentioning

confidence: 99%

Utilization of Charge Transfer and Kinetic Methods for the Determination of Doripenem

Al-Shaalan¹

2012

American Journal of Applied Sciences

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“…For instance; drug action, enzyme catalysis and ion transfer through lipophilic membranes involve complexation 15 . The features of ionic interactions are the primary directors of specificity, rate control and reversibility in many biochemical systems 16 .…”

Section: Introductionmentioning

confidence: 99%

"Synthesis and Charge Transfer Complex Studies of Carbazole Substituted Pyridopyrimidine With Some ?-Acceptors "

2017

RJC

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Carbazole Substituted Pyridopyrimidine (CSPP) was synthesized and Charge transfer complexes with some acceptors such as tetracyanoquinomethane (TCNQ) and 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) have been studied spectrophotometrically in acetonitrile at 21 o C. The stoichiometries of the complexes were found to be 1:1 ratio by the Job method between donor and acceptors with the maximum absorption band at a wavelength of 715 nm for DDQ and 593 nm for TCNQ. The formation constants of the complexes were determined by Benesi-Hildebrand equation. The thermodynamic parameters were calculated by Van't Hoff equations and found spontaneous and exothermic.

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“…The charge transfer complexes play the important roles in many biological systems such as drug action, enzyme catalysis, ion transfers through lipophilic membranes [24], drug acceptor binding mechanism [25], DNA-binding, antibacterial, antifungal, and insecticides [26e30]. Furthermore, the research application of charge transfer complexes is in many fields like photo catalysts [31], dendrimers [32], non-linear optical materials and electrical conductivity [33], solar energy storage [34], organic semiconductors [35] as well as in studying redox processes [36].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, crystallographic, spectral, and spectrophotometric studies of proton transfer complex of 1,2-dimethylimidazole with 3,5-dinitrobenzoic acid in different polar solvents

Miyan

Zulkarnain

Ahmad

2017

Journal of Molecular Structure

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Charge transfer complexes of K vitamins with several classes of antimicrobials

Cited by 97 publications

References 11 publications

Utilization of Charge Transfer and Kinetic Methods for the Determination of Doripenem

Utilization of Charge Transfer and Kinetic Methods for the Determination of Doripenem

"Synthesis and Charge Transfer Complex Studies of Carbazole Substituted Pyridopyrimidine With Some ?-Acceptors "

Synthesis, crystallographic, spectral, and spectrophotometric studies of proton transfer complex of 1,2-dimethylimidazole with 3,5-dinitrobenzoic acid in different polar solvents

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