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Relevant bibliographies by topics / Ligands (Biochemistry) Schiff bases

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Academic literature on the topic 'Ligands (Biochemistry) Schiff bases'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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Journal articles on the topic "Ligands (Biochemistry) Schiff bases"

1

Wagh, Shaila, and B. R. Patil. "Synthesis and Spectral Characterization of Some New Novel Schiff bases Derived from Hydroxy Propiophenone." Oriental Journal Of Chemistry 37, no. 3 (2021): 759–62. http://dx.doi.org/10.13005/ojc/370335.

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New Schiff bases derived by the condensation of methyl, chloro, and bromo substituted 2' hydroxy propiophenones with aliphatic and aromatic amines have been synthesized. The Schiff bases are yellow solids with sharp melting points. Schiff bases The spectral characterization of these newly synthesized Schiff base ligands has been done.These Schiff bases were characterized by IR spectroscopy, Nuclear magnetic resonance spectroscopy, UV spectroscopy, and Mass spectroscopy. IR spectra confirmed the presence of the phenolic OH group and azomethine group.

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2

Singh, Har Lal, and A. K. Varshney. "Synthetic, Structural, and Biochemical Studies of Organotin(IV) with Schiff Bases Having Nitrogen and Sulphur Donor Ligands." Bioinorganic Chemistry and Applications 2006 (2006): 1–7. http://dx.doi.org/10.1155/bca/2006/23245.

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Three bidentate Schiff bases having nitrogen and sulphur donor sequences were prepared by condensing S-benzyldithiocarbazate (NH2NHCS2CH2C6H5) with heterocyclic aldehydes. The reaction of diphenyltin dichloride with Schiff bases leads to the formation of a new series of organotin(IV) complexes. An attempt has been made to prove their structures on the basis of elemental analyses, conductance measurements, molecular weights determinations, UV, infrared, and multinuclear magnetic resonance (H1,C13, andS119n) spectral studies. Organotin(IV) complexes were five- and six-coordinate. Schiff bases an

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3

Singh, Kiran, Parvesh Puri, Yogender Kumar, Chetan Sharma, and Kamal Rai Aneja. "Biological and Spectral Studies of Newly Synthesized Triazole Schiff Bases and Their Si(IV), Sn(IV) Complexes." Bioinorganic Chemistry and Applications 2011 (2011): 1–10. http://dx.doi.org/10.1155/2011/654250.

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The Schiff bases HL1-3have been prepared by the reaction of 5-bromothiophene-2-carboxaldehyde with 4-amino-5-mercapto-3-methyl/propyl/isopropyl-s-triazole, respectively. Organosilicon(IV) and organotin(IV) complexes of formulae (CH3)2MCl(L1-3), (CH3)2M(L1-3)2were synthesized from the reaction of (CH3)2MCl2and the Schiff bases in 1 : 1 and 1 : 2 molar ratio, where and Sn. The synthesized Schiff bases and their metal complexes have been characterized with the aid of various physicochemical techniques like elemental analyses, molar conductance, UV, IR,1H,13C,29Si, and119Sn NMR spectroscopy. Based

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4

Howsaui, Hanan B., Amal S. Basaleh, Magda H. Abdellattif, Walid M. I. Hassan, and Mostafa A. Hussien. "Synthesis, Structural Investigations, Molecular Docking, and Anticancer Activity of Some Novel Schiff Bases and Their Uranyl Complexes." Biomolecules 11, no. 8 (2021): 1138. http://dx.doi.org/10.3390/biom11081138.

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Three novel 2-aminopyrazine Schiff bases derived from salicylaldehyde derivatives and their uranyl complexes were synthesized and characterized by elemental analysis, UV-vis, FTIR, molar conductance, and thermal gravimetric analysis (TGA). The proposed structures were optimized using density functional theory (DFT/B3LYP) and 6–311G ∗(d,p) basis sets. All uranyl complexes are soluble in DMSO and have low molar conductance, which indicates that all the complexes are nonelectrolytes. The DNA binding of those Schiff bases and their uranyl complexes was studied using UV-vis spectroscopy, and screen

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5

Mahon, Mary F., John McGinley, A. Denise Rooney, and John M. D. Walsh. "Calix[4]arene Schiff bases—potential ligands for fluorescent studies." Tetrahedron 64, no. 49 (2008): 11058–66. http://dx.doi.org/10.1016/j.tet.2008.09.091.

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6

Singh, Har Lal, Jangbhadur Singh, and A. Mukherjee. "Synthesis, Spectral, andIn VitroAntibacterial Studies of Organosilicon(IV) Complexes with Schiff Bases Derived from Amino Acids." Bioinorganic Chemistry and Applications 2013 (2013): 1–9. http://dx.doi.org/10.1155/2013/425832.

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The present work stems from our interest in the synthesis, characterization, and antibacterial evaluation of organosilicon(IV) complexes of a class of amino-acid-based Schiff base which have been prepared by the interaction of ethoxytrimethylsilane with the Schiff bases (N OH) in 1 : 1 molar ratio. These complexes have been characterized by elemental analysis, molar conductance, and spectroscopic studies including electronic IR and NMR (1H,13C, and29Si) spectroscopy. The analytical and spectral data suggest trigonal bipyramidal geometry around the silicon atom in the resulting complexes. The l

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7

Ahmed, Riyadh M., Enaam I. Yousif, and Mohamad J. Al-Jeboori. "Co(II) and Cd(II) Complexes Derived from Heterocyclic Schiff-Bases: Synthesis, Structural Characterisation, and Biological Activity." Scientific World Journal 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/754868.

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New monomeric cobalt and cadmium complexes with Schiff-bases, namely,N′-[(E)-(3-hydroxy-4-methoxyphenyl)methylidene]furan-2-carbohydrazide (L1) andN′-[(E)-(3-hydroxy-4-methoxyphenyl)methylidene]thiophene-2-carbohydrazide (L2) are reported. Schiff-base ligands L1and L2were derived from condensation of 3-hydroxy-4-methoxybenzaldehyde (iso-vanillin) with furan-2-carboxylic acid hydrazide and thiophene-2-carboxylic acid hydrazide, respectively. Complexes of the general formula [M(L)2]Cl2(where M = Co(II) or Cd(II), L = L1or L2) have been obtained from the reaction of the corresponding metal chlori

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8

Shunmugaperumal, Selvaraj, Saranya Dhasarathan, Kamatchi Selvaraj P, and Ilango Kaliappan. "Multi Metal Ion Recognizing Unsymmetrical tetra Dentate Schiff bases associated with Antifungal Activity." Oriental Journal Of Chemistry 37, no. 4 (2021): 833–46. http://dx.doi.org/10.13005/ojc/370410.

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New unsymmetrical Schiff bases containing azomethine moiety with simple aromatic section in one side and ferrocene fragment attached imine on the other side have beensynthesized. Advent of metal-to-ligand charge transfer band for the coordination of Cu2+ ions with receptors and appropriate changes in UV-Visible spectra for other metal ion combination with the sensor is reported. Observed extravagant ΔEpvalues suggest quasi-reversible process. The ΔIpa amount calculated from the anodic current Ipa value noticed for receptor solution and different metal ion added sensor solution discloses the co

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9

Sumrra, Sajjad Hussain, Muhammad Ibrahim, Sabahat Ambreen, Muhammad Imran, Muhammad Danish, and Fouzia Sultana Rehmani. "Synthesis, Spectral Characterization, and Biological Evaluation of Transition Metal Complexes of Bidentate N, O Donor Schiff Bases." Bioinorganic Chemistry and Applications 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/812924.

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New series of three bidentate N, O donor type Schiff bases(L1)–(L3)were prepared by using ethylene-1,2-diamine with 5-methyl furfural, 2-anisaldehyde, and 2-hydroxybenzaldehyde in an equimolar ratio. These ligands were further complexed with Co(II), Cu(II), Ni(II), and Zn(II) metals to produce their new metal complexes having an octahedral geometry. These compounds were characterized on the basis of their physical, spectral, and analytical data. Elemental analysis and spectral data of the uncomplexed ligands and their metal(II) complexes were found to be in good agreement with their structures

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10

Adeleke, Adesola A., Sizwe J. Zamisa, and Bernard Omondi. "Ag(I) Complexes of Imine Derivatives of Unexpected 2-Thiophenemethylamine Homo-Coupling and Bis-(E)-N-(furan-2-ylmethyl)-1-(quinolin-2-yl)methanimine." Molbank 2021, no. 2 (2021): M1235. http://dx.doi.org/10.3390/m1235.

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Imines are fundamental organic compounds used as synthetic intermediates and as ligands in coordination chemistry. They are also found to be important pharmacophores in various bioactive compounds. In this report, two Schiff bases were prepared using the traditional condensation of 4-pyridinecarboxaldehyde with 2-thiophenemethylamine and 2-quinolinecarboxaldehyde with furfurylamine to form (E)-1-(pyridin-4-yl)-N-(thiophen-2-ylmethyl)methanimine (L1) and (E)-N-(furan-2-ylmethyl)-1-(quinolin-2-yl)methanimine (L2) respectively. L1 and L2 were complexed with silver perchlorate in 2:1 [M:L] stoichi

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Dissertations / Theses on the topic "Ligands (Biochemistry) Schiff bases"

1

Gichinga, Moses G. Striegler Susanne. "Synthesis, spectroscopic investigation and immobilization of copper(II) complexes as oxidation catalysts." Auburn, Ala, 2009. http://hdl.handle.net/10415/1857.

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2

Sobola, Abdullahi Owolabi. "Synthesis, characterization and antimicrobial activity of copper (II) complexes of some hydroxybenzaldimines and their derivatives." Thesis, Rhodes University, 2012. http://hdl.handle.net/10962/d1016258.

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This study focuses on the antimicrobial activity of Cu(II) complexes of some orthohydroxybenzaldimines and its derivatives. Four different categories of Schiff base ligands were prepared by condensing salicylaldehyde, o-vanillin, p-vanillin and vanillin with p- and osubstituted anilines; 1-aminonaphthalene; 2- and 3-aminopyridine; 2- and 3- aminomethylpyridine as well as 2-aminobenzimidazole. The last category was prepared from ophenylenediamine and o-vanillin. The Schiff base ligands have been characterized by a combination of elemental analysis and spectral (¹H- and ¹³C-NMR, UV/Visible, infr

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3

Silveira, Vivian Chagas da. "Investigação da atividade biológica de complexos de cobre(II) com ligantes inspirados em biomoléculas." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/46/46134/tde-15062009-154840/.

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Neste trabalho, alguns novos complexos imínicos de cobre(II) com ligantes inspirados em biomoléculas como oxindóis, contendo grupos indólicos, imidazólicos ou pirrólicos com diferentes características estruturais, foram sintetizados e caracterizados por análise elementar, espectrometria ESI-MS e espectroscopias IV, UVNis e EPR. As possíveis interações desses complexos de cobre com a albumina humana (HSA) e com o plasma sanguíneo foram estudadas através das técnicas EPR, CD e SDS-PAGE, indicando que estas ocorrem principalmente no sítio N-terminal da proteína. Suas reatividades frente a compost

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4

Zhang, Jie. "Synthesis, characterization and photophysical properties of metal complexes with schiff-base and prophyrin ligands." HKBU Institutional Repository, 2012. https://repository.hkbu.edu.hk/etd_ra/1423.

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5

周向葛 and Xiangge Zhou. "Asymmetric reactions catalyzed by transition metal complexes containing binaphthyl schiff bases and chiral porphyrinato ligands." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31239833.

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Zhou, Xiangge. "Asymmetric reactions catalyzed by transition metal complexes containing binaphthyl schiff bases and chiral porphyrinato ligands /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21021363.

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7

Bahron, H. "Characterization of new metal complexes of Schiff bases and macrocyclic ligands and some mononitrosyl derivatives." Thesis, University of Surrey, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240159.

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8

Low, May Lee. "Synthèse, caractérisation et bioactivité de ligands issus de bases de Schiff dérivées de dithiocarbazate et de leurs complexes métalliques." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066148/document.

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Il y a de nos jours un besoin urgent de découvrir de nouveaux médicaments pour relever le défi de la multirésistance dans le traitement des infections bactériennes et le cancer. Dans cette perspective, des bases de Schiff dérivées de dithiocarbazates et leurs complexes métalliques correspondants sont des candidats intéressants puisqu'ils peuvent être facilement synthétisés et permettent une grande diversité de coordination. Dans cette étude, des complexes tetradentes et bidente ont été préparés. Les ligands et complexes synthétisés ont été entièrement caractérisés par différentes méthodes spec

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9

Medeiros, Marisa Helena Gennari de. "Oxidação quimiluminescente de bases de Schiff catalisada por peroxidase: aspectos mecanísticos e toxicológicos." Universidade de São Paulo, 1986. http://www.teses.usp.br/teses/disponiveis/46/46131/tde-11112013-144048/.

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A enzima peroxidase (HRP) , agindo como uma oxigenase em substratos apropriados, promove a formação de espécies excitadas no estado triplete. Estes produtos excitados podem ser formados em sistemas bioquímicos e promover processos fotoquímicos no escuro. Nesta linha de estudos, investigamos a oxidação aeróbica, na presença de HRP, de substratos contendo ligações de Schiff. Esses compostos são de grande importância biológica, uma vez que participam como intermediários em diversas reações enzimáticas (transaminação, biossíntese de aminoácidos, biossíntese de profirinas), nas ligações cruzadas do

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10

Soulet, Frédéric. "Electrodes greffées par des complexes de coordination du fer à ligands bases de Schiff du type Salen." Toulouse 3, 1996. http://www.theses.fr/1996TOU30036.

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Les annees 1980 ont ete marquees par l'apparition de nouveaux materiaux: les polymeres organiques conducteurs comme les polyanilines, les polypyrroles et les polythiophenes qui sont synthetises par oxydation electrochimique. Un nouveau developpement de ces materiaux est apparu avec l'idee d'introduire dans la matrice des especes possedant une activite electrochimique propre, comme des complexes de coordination. Ces materiaux dopes constituent les electrodes modifiees qui sont utilisees en electrocatalyse. Les complexes de coordination retenus pour cette etude sont essentiellement des complexes

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Books on the topic "Ligands (Biochemistry) Schiff bases"

1

Sommerer, Shaun O. A synthetic, structural and theoretical investigation of pentadentate Schiff base ligands. 1991.

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2

Qian, Keping. Synthesis and characterization of the compounds with the derivatives of pyridine or schiff bases. 1991.

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Book chapters on the topic "Ligands (Biochemistry) Schiff bases"

1

Blazquez, M., J. M. Sevilla, J. Perez, M. Dominguez, and F. Garcia-Blanco. "A New Approach to the Study Of Pyridoxal-5′-Phosphate Schiff Bases." In Biochemistry of Vitamin B6. Birkhäuser Basel, 1987. http://dx.doi.org/10.1007/978-3-0348-9308-4_62.

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2

Polt, Robin, Brian Dangel, Bhaskar Tadikonda, and Brian Kelly. "Bifurcated Dipeptide Schiff Bases as Ligands for Enantioselective Catalysis: Micro-Metalloenzymes." In Peptides: The Wave of the Future. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0464-0_124.

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3

Martell, A. E., K. Tatsumotoc, and P. Taylor. "NMR Detection of a Delocalized Carbanion Intermediate in the Transamination Reactions of the Metal Chelates of Schiff Bases of Vitamin B6." In Biochemistry of Vitamin B6. Birkhäuser Basel, 1987. http://dx.doi.org/10.1007/978-3-0348-9308-4_64.

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4

Metzler, David E., Carol M. Metzler, Emilia T. Mollova, and Tsuyoshi Higaki. "1H and15N NMR Spectroscopy of Aspartate Aminotransferase and Related Schiff Bases and Tautomerism in Enzyme Active Sites." In Biochemistry and Molecular Biology of Vitamin B6 and PQQ-dependent Proteins. Birkhäuser Basel, 2000. http://dx.doi.org/10.1007/978-3-0348-8397-9_30.

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5

Sakhare, D. T. "Synthesis, Characterization and Biological Activities of Schiff Bases and Their Transition Metal Complexes." In Current Advances in Chemistry and Biochemistry Vol. 3. Book Publisher International (a part of SCIENCEDOMAIN International), 2021. http://dx.doi.org/10.9734/bpi/cacb/v3/1574c.

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