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1

Liu, Hui-Yan, Hai-Ying Wang, Feng Gao, Zai-Sheng Lu, and De-Zhong Niu. "5-Bromosalicylaldehyde benzoylhydrazone." Acta Crystallographica Section E Structure Reports Online 62, no. 10 (2006): o4495—o4496. http://dx.doi.org/10.1107/s160053680603683x.

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2

K., Ravindra, Raveendra Reddy P., Krishna Reddy V., and Sreenivasulu Reddy T. "Electrochemical behavior of 5-bromosalicylaldehyde isonicotinoylhydrazone." Journal of Indian Chemical Society Vol. 79, Nov 2002 (2002): 901–3. https://doi.org/10.5281/zenodo.5847934.

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Department of Chemistry, Sri Krishnadevaraya University, Anantapur-515 003, India E-mail : sku1@hyd.ap.nic.in&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Fax: 91-08554-55808 <em>Manuscript received 20 February 2002, revised 8 July 2002, accepted 16 July 2002</em> Electrochemical behavior of 5-bromosalicylaldehyde isonicotinoylhydrazone has been studied at dropping mercury and glassy carbon electrodes by employing DC polarography and cyclic voltammetry in Britton-Robinson buffers (pH 2-10). The compound exhibits two polarographic waves in solutions of pH 2-10. In cyclic voltammetric studies,
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3

Gad, Hanem M., S. M. El Rayes, and Ehab A. Abdelrahman. "Modification of silica nanoparticles by 2,4-dihydroxybenzaldehyde and 5-bromosalicylaldehyde as new nanocomposites for efficient removal and preconcentration of Cu(ii) and Cd(ii) ions from water, blood, and fish muscles." RSC Advances 12, no. 30 (2022): 19209–24. http://dx.doi.org/10.1039/d2ra03177a.

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4

Tai, Xi Shi, Peng Fei Li, Xin Wang, and Li Li Liu. "Synthesis, Structural Characterization, and Catalytic Property of A Zn(II) Complex with 5-Bromosalicylaldehyde Ligand." Bulletin of Chemical Reaction Engineering & Catalysis 12, no. 3 (2017): 364. http://dx.doi.org/10.9767/bcrec.12.3.876.364-369.

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The study on catalytic activity of complex materials has been one of the hot spots in coordination chemistry. In order to extensively study the catalytic activity of complexes, a new six-coordination Zn(II) complex material, [ZnL2(H2O)2] (C1) (HL = 5-bromosalicylaldehyde), has been prepared with 5-bromosalicylaldehyde, NaOH, and Zn(CH3COO)2·2H2O as raw materials. The structure of C1 was determined by elemental analysis, IR spectra, and single crystal X-ray diffraction. The Zn(II) complex shows a moderate catalytic activity for A3 coupling reaction of benzaldehyde, piperidine, and phenylacetyle
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5

J, Ashok Kumar, Saidachary G, Kavitha P, Venkateswara Rao J, Sridhar B, and China Raju B. "Acetylcholinesterase/butylcholinesterase Inhibitory Activities of Substituted Chromenone Derivatives." International Journal of Drug Design and Discovery 2, no. 2 (2024): 435–41. https://doi.org/10.37285/ijddd.2.2.1.

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3,6-Disubstituted-2H-2-chromenones 3a-l and 3,4,6-trisubstituted 2H-2-chromenones 3m &amp; 3n were synthesized from 5-bromosalicylaldehyde 1 and 5-bromo-2-hydroxyacetophenone 5. Suzuki coupling of 5-bromosalicylaldehyde with various phenylboronic acids yielded 5-substituted salicylaldehydes 2b-l and these compounds were reacted with various β-ketoesters in presence of piperidine afforded substituted chromenone derivatives 3a-l in very good yields. The compounds 3m &amp; 3n were prepared by Suzuki coupling of 2m. Synthesized compounds 3a-n were screened for in vitro AChE &amp; BuChE activities
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6

Liang, Gao, Zheng Minghao, Liu Haiyi, et al. "A novel HBI-based ratiometric fluorescent probe for rapid detection of trifluoroborate." RSC Advances 13, no. 34 (2023): 23812–17. http://dx.doi.org/10.1039/d3ra04474b.

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A 2-(2′-hydroxyphenyl)benzimidazole (HBI)-based ratiometric fluorescent probe, known as BTEP, was synthesized using 5-bromosalicylaldehyde as the raw material via Sonogashira coupling and condensation reaction.
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7

TAI, Xishi, and Yimin FENG. "Crystal Structure of N′-(5-Bromosalicylaldehyde)-4-toluene-sulfonylhydrazide." X-ray Structure Analysis Online 25 (2009): 41–42. http://dx.doi.org/10.2116/xraystruct.25.41.

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8

V., K. RASTOGI, C. SAXENA R., K. KOTNALA A., and N. RASTOGI J. "Coordination Compounds of Bivalent Copper with Benzhydrazide of 5-Bromosalicylaldehyde, 2-Hydroxy-5-methyl-benzophenone and 2, 4-Dihydroxy-valerophenone." Journal of Indian Chemical Society Vol. 61, Oct 1984 (1989): 897–98. https://doi.org/10.5281/zenodo.6344187.

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Department of Physics, Meerut College, Meerut-250 001 Department of Chemistry, M. M. College,&nbsp;Modinagar-201 204 <em>Manuscript received 6 February 1982, revised 19 May 1983,&nbsp;accepted 1 September 1983</em> Coordination Compounds of Bivalent Copper with Benzhydrazide of 5-Bromosalicylaldehyde, 2-Hydroxy-5-methyl-benzophenone and 2, 4-Dihydroxy-valerophenone
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9

Tahmasbi, Bahman, Mohsen Nikoorazm, Parisa Moradi, and Yunes Abbasi Tyula. "A Schiff base complex of lanthanum on modified MCM-41 as a reusable nanocatalyst in the homoselective synthesis of 5-substituted 1H-tetrazoles." RSC Advances 12, no. 53 (2022): 34303–17. http://dx.doi.org/10.1039/d2ra05413b.

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In this work, mesoporous MCM-41 was modified by a new Schiff-base formed from the condensation of triethylenetatramine and 5-bromosalicylaldehyde. Then, lanthanum was immobilized on its surface as reusable nanocatalyst in the synthesis of tetrazoles.
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10

Zhao, Yun, Xiao-Feng Shen, and Li-Fang Zhang. "A new mononuclear neutral high-spin iron(III) complex with the different tridentate ligands 5-bromosalicylaldehyde (pyridin-2-yl)hydrazone and 5-bromosalicylaldehyde thiosemicarbazone." Acta Crystallographica Section E Crystallographic Communications 74, no. 2 (2018): 252–55. http://dx.doi.org/10.1107/s2056989018001263.

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The title neutral mononuclear complex, [1-(5-bromo-2-oxidobenzylidene)thiosemicarbazidato](4-bromo-2-{[2-(pyridin-2-yl)hydrazinylidene]methyl}phenolato)iron(III), [Fe(C8H6BrN3OS)(C12H9BrN3O)] (I), crystallizes in the monoclinic space group C 2/c and has two different planar tridentate ligands. The central FeIII ion is coordinated to three N, two O and one S atom, forming a distorted octahedral FeN3O2S coordination geometry. In the crystal, the complex molecules are linked by N—H...O and N—H...N hydrogen bonds and π–π interactions into layers parallel to (100). Magnetic measurements show that t
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11

Wu, Qi, LiHeng Feng, Jian Bin Chao, Yu Wang, and Shaomin Shuang. "Ratiometric sensing of Zn2+ with a new benzothiazole-based fluorescent sensor and living cell imaging." Analyst 146, no. 13 (2021): 4348–56. http://dx.doi.org/10.1039/d1an00749a.

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A new fluorescent probe, 3-(benzo[d]thiazol-2-yl)-5-bromosalicylaldehyde-<sup>4</sup>N-phenyl thiosemicarbazone (BTT), for ratiometric sensing of Zn<sup>2+</sup> ions in methanol/HEPES buffer solution (3 : 2, pH = 7.4) is reported in this paper.
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12

Reji, Geo, P. S. Amrutha, M. R. Greeshma, Lincy Tom, and M. R. P. Kurup. "Cu(II), Cd(II) and Ni(II) Complexes of 5-Bromosalicylaldehyde-4-hydroxybenzhydrazone: Synthesis and Spectral Studies." Mapana - Journal of Sciences 16, no. 2 (2017): 1–10. http://dx.doi.org/10.12723/mjs.41.1.

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Four complexes of 5-bromosalicylaldehyde-4-hydroxybenzhydrazone were synthesized and characterized by elemental analyses, electronic, and infrared spectra. In all complexes, hydrazone exists either in the neutral form, deprotonated monoanionic form or in dideprononated dianionic form. Structures were assigned to all the complexes based on the physico-chemical studies.
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13

Gad, Hanem M., S. M. El Rayes, and Ehab A. Abdelrahman. "Correction: Modification of silica nanoparticles by 2,4-dihydroxybenzaldehyde and 5-bromosalicylaldehyde as new nanocomposites for efficient removal and preconcentration of Cu(ii) and Cd(ii) ions from water, blood, and fish muscles." RSC Advances 12, no. 32 (2022): 20762–64. http://dx.doi.org/10.1039/d2ra90073d.

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Correction for ‘Modification of silica nanoparticles by 2,4-dihydroxybenzaldehyde and 5-bromosalicylaldehyde as new nanocomposites for efficient removal and preconcentration of Cu(ii) and Cd(ii) ions from water, blood, and fish muscles' by Hanem M. Gad et al., RSC Adv., 2022, 12, 19209–19224, https://doi.org/10.1039/D2RA03177A.
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14

R., N. Prasad, Agrawal Mithlesh та George Remesh. "Synthesis of mixed ligand complexes of nickel-, copper- and zinc(II) with 5-bromosalicylaldehyde and β-diketones". Journal of Indian Chemical Society Vol. 80, Feb 2003 (2003): 79–81. https://doi.org/10.5281/zenodo.5835918.

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Department of Chemistry, University of Rajasthan, Jaipur-302 004, India <em>E-mail :</em> prasadraghunandan@yahoo.com <em>Manuscript received 11 April 2002. revised 19 August 2002, accepted 29 October 2002</em> Mixed ligand complexes of the types [M(L)(L&#39;)] (M = Cu<sup>II</sup> , Zn<sup>II</sup> ; HL = 5-bromosalicylaldehyde and HL&#39; = acetylacetone, benzoylacetone or dibenzoylmethane) and [Ni(L)(L&#39;)(H<sub>2</sub>O)<sub>2</sub>] have been synthesized by 1 : 1&nbsp;: 1&nbsp;molar reactions of metal chlorides with two different carbonyl compounds.
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15

Nikolova-Mladenova, Boryana, Silvia Angelova, and Georgi Momekov. "Gallium (III) Complexes with 5-Bromosalicylaldehyde Benzoylhydrazones: In Silico Studies and In Vitro Cytotoxic Activity." Molecules 27, no. 17 (2022): 5493. http://dx.doi.org/10.3390/molecules27175493.

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Gallium (III) complexes with the ligands 5-bromosalicylaldehyde-4-hydroxybenzoylhydrazone and 5-bromosalicylaldehyde isonicotinoylhydrazone were synthesized to receive compounds with improved antiproliferative action. Compounds were characterized by elemental analysis, IR, and NMR spectroscopy. Density functional theory calculations with Becke’s 3-parameter hybrid functional and 6-31+G(d,p) basis set were carried out to investigate the structural features of the ligands and Ga(III) complexes. Cytotoxic screening by MTT-dye reduction assay was carried out using cisplatin and melphalan as refere
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16

Ramanjaneyulu, G., P. Raveendra Reddy, V. Krishna Reddy, and T. Sreenivasulu Reddy. "Direct and Derivative Spectrophotometric Determination of Copper(II) with 5-Bromosalicylaldehyde Thiosemicarbazone." Open Analytical Chemistry Journal 2, no. 1 (2009): 78–82. http://dx.doi.org/10.2174/1874065000802010078.

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17

Wang, Li Hua. "One-Pot Synthesis and Luminescent Properties of Mg (II) Complex Material with 5-Bromosalicylaldehyde- 4,4’-Diaminodiphenylamine." Advanced Materials Research 396-398 (November 2011): 935–38. http://dx.doi.org/10.4028/www.scientific.net/amr.396-398.935.

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Using 5-bromosalicylaldehyde, 4, 4’-Diaminodiphenylamine and MgCl2•6H2O as starting materials, a new Mg (II) complex material was synthesized. This method is a convenient and efficient way to the synthesis of Mg (II) complex materials. The luminescent properties of the Mg (II) complex material were studied in solid state and in organic solvents. The effect of organic solvents and three carboxylate derivatives on the luminescent properties are also investigated. The results show that the Mg (II) complex material emits light green fluorescence 550 nm when excited at 328 nm at room temperature.
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18

Jain, Rajendra K., A. P. Mishra, D. K. Mishra, and S. K. Gupta. "Microwave Synthesis, Spectral, Thermal and Electrical Properties of Some Metal Complexes Involving 5-Bromosalicylaldehyde." E-Journal of Chemistry 9, no. 4 (2012): 1721–27. http://dx.doi.org/10.1155/2012/298354.

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Microwave-assisted synthesis is a branch of green chemistry. The salient features of microwave approach are shorter reaction times, simple reaction conditions and enhancements in yields. Some new Schiff base complexes of Cr(III), Co(II), Ni(II) and Cu(II) derived from 5-bromosalicylaldehyde with 4-nitro-1,2-phenylenediamine (H2L1) have been synthesized by conventional as well as microwave methods. These compounds have been characterized by elemental analysis, FT-IR, FAB-mass, molar conductance, electronic spectra, ESR, magnetic susceptibility and thermal analysis. The complexes exhibit coordin
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19

Ourari, Ali, Kamel Ouari, Wahiba Moumeni, Lakhdar Sibous, Gilles M. Bouet, and Mustayeen A. Khan. "Unsymmetrical Tetradentate Schiff Base Complexes Derived from 2,3-diaminophenol and Salicylaldehyde or 5-bromosalicylaldehyde." Transition Metal Chemistry 31, no. 2 (2006): 169–75. http://dx.doi.org/10.1007/s11243-005-6334-y.

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20

Abdel-Aziem, Anhar, Basma S. Baaiu, and Abdou O. Abdelhamid. "Synthesis and Evaluation of Antimicrobial Activity of Some Novel Heterocyclic Compounds from 5-Bromosalicylaldehyde." Journal of Heterocyclic Chemistry 54, no. 6 (2017): 3471–80. http://dx.doi.org/10.1002/jhet.2970.

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21

Asadi, Mozaffar, Hajar Sepehrpour, and Khosro Mohammadi. "Tetradentate schiff base ligands of 3,4- diaminobenzophenone: Synthesis, characterization and thermodynamics of complex formation with Ni(II), Cu(II) and Zn(II) metal ions." Journal of the Serbian Chemical Society 76, no. 1 (2011): 63–74. http://dx.doi.org/10.2298/jsc100104004a.

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Some new symmetrical diimino tetradentate Schiff base ligands were synthesized by the reaction of 3,4-diaminobenzophenone with salicylaldehyde derivatives, such as [N,N?-bis(4-methoxysalicylaldehyde)- 3,4-diaminobenzophenone] (L1), [N,N?-bis(5-methoxysalicylaldehyde)- 3,4-diaminobenzophenone] (L2), [N,N?-bis(5-bromosalicylaldehyde)-3,4- diaminobenzophenone] (L3), [N,N?-bis(5-nitrosalicylaldehyde)-3,4- diaminobenzophenone] (L4). Additionally, a tetradentate Schiff base ligand [N,N?-bis(3-methoxysalicylaldehyde)-3,4-diaminobenzophenone] (L5), was synthesized. All the Schiff bases and their Ni(II
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22

Powell, Robyn Elizabeth, Carl H. Schwalbe, Graham J. Tizzard та Petra J. van Koningsbruggen. "Caesium bis(5-bromosalicylaldehyde thiosemicarbazonato-κ3O,N,S)ferrate(III): supramolecular arrangement of low-spin FeIIIcomplex anions mediated by Cs+cations". Acta Crystallographica Section C Structural Chemistry 71, № 3 (2015): 169–74. http://dx.doi.org/10.1107/s2053229615001928.

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The synthesis and crystal structure determination (at 293 K) of the title complex, Cs[Fe(C8H6BrN3OS)2], are reported. The compound is composed of two dianionicO,N,S-tridentate 5-bromosalicylaldehyde thiosemicarbazonate(2−) ligands coordinated to an FeIIIcation, displaying a distorted octahedral geometry. The ligands are orientated in two perpendicular planes, with the O- and S-donor atoms incispositions and the N-donor atoms intranspositions. The complex displays intermolecular N—H...O and N—H...Br hydrogen bonds, creatingR44(18) rings, which link the FeIIIunits in theaandbdirections. The FeII
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23

Rusanova, Julia A., та Dmytro Bederak. "Crystal structure of bis(μ2-4-bromo-2-[({2-[({2-[(5-bromo-2-oxidobenzylidene)amino]ethyl}sulfanyl)sulfonyl]ethyl}imino)methyl]phenolato)dicopper(II) dimethylformamide disolvate". Acta Crystallographica Section E Crystallographic Communications 73, № 11 (2017): 1797–800. http://dx.doi.org/10.1107/s2056989017015584.

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The title dinuclear copper(II) complex [Cu2(C18H16Br2N2O4S2)2] was prepared by direct synthesis of a dianionic Schiff base derived from 5-bromosalicylaldehyde and cysteamine. The discrete molecules lie across inversion centers and crystallize with two dimethylformamide (DMF) molecules of crystallization. The unique CuIIion is four-coordinated by two tetradentate Schiff base ligands in a distorted square-planar N2O2environment. In the crystal, short intermolecular S...Br contacts, weak C—H...O hydrogen bonds and intra- and intermolecular π–π stacking interactions between rings of the ligand lin
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24

Sristicheta, Misra, Bihari Pandeya Krishna, Kumar Tiwari Ashok, Zebra Ali Amtul та Saradamani T. "α-Glucosidase inhibition and DPPH free radical scavenging by oxovanadium(IV) complexes of some tetradentate Schiff bases". Journal of Indian Chemical Society Vol. 88, Aug 2011 (2011): 1195–201. https://doi.org/10.5281/zenodo.5786081.

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Department of Chemistry, University of Allahabad, Allahabad-211 002, Uttar Pradesh, India <em>E-mail</em> : kbpandeya@yahoo.com Division of Pharmacology, Indian Institute of Chemical Technology, Hyderabad-500 007, India <em>Manuscript received 04 July 2011, accepted 05 July 2011</em> <em>&alpha;</em>-Glucosidase inhibition and DPPH free radical scavenging by four oxovanadium(IV) complexes of tetradentate Schiff bases, derived from salicylaldehyde/5-bromosalicylaldehyde and ethylenediamine/phenylenediamine (VO-salen, VO-brsalen, VO-salphn and VO-brsalphn), have been screened. Among the four com
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25

Abu-Yamin, Abdel Aziz, Abdel Aziz Qasem Mohammad Jbarah, Khaled Al Khalyfeh, et al. "Crystal structure, spectroscopic studies, DFT calculations, and biological activity of 5-bromosalicylaldehyde–based Schiff bases." Journal of Molecular Structure 1262 (August 2022): 132976. http://dx.doi.org/10.1016/j.molstruc.2022.132976.

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26

Güveli, Şükriye, Namık Özdemir, Bahri Ülküseven, and Tülay Bal-Demirci. "Divalent nickel complexes of thiosemicarbazone based on 5-bromosalicylaldehyde and triphenylphosphine: Experimental and theoretical characterization." Polyhedron 113 (July 2016): 16–24. http://dx.doi.org/10.1016/j.poly.2016.03.057.

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27

Cristóvão, Beata, and Wieslawa Ferenc. "Synthesis and magnetic properties of heteronuclear 3d-4f compound." Ecletica Quimica 32, no. 3 (2007): 19–24. http://dx.doi.org/10.26850/1678-4618eqj.v32.3.2007.p19-24.

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A novel heteronuclear 3d-4f compound having formula NdCu 3 L 3 ·13H 2 O (whereH 3 L = Schiff base derived from 5-bromosalicylaldehyde and glycylglycine andL 3– = C 11 H 8 N 2 O 4 Br) was obtained. It was characterized by elemental and thermal analysesand magnetic measurements. The Cu(II)–Nd(III) compound is stable up to 323 K. Duringdehydration process the water molecules are lost in two stages. The magnetic susceptibilitydata for this complex change with temperature according to the Curie-Weiss law withΘ = -35 K. The magnetic moment values decrease from 5.00 μ B at 303 K to 4.38 μ B at76 K.
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28

Shaheen, Muhammad, Shanshan Feng, Mehwish Anthony, et al. "Metal-Based Scaffolds of Schiff Bases Derived from Naproxen: Synthesis, Antibacterial Activities, and Molecular Docking Studies." Molecules 24, no. 7 (2019): 1237. http://dx.doi.org/10.3390/molecules24071237.

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We report here the synthesis, characterization, and antibacterial evaluation of transition metal complexes of Ni, Cu, Co, Mn, Zn, and Cd (6a–f), using a Schiff base ligand (5) derived from naproxen (an anti-inflammatory drug) and 5-bromosalicylaldehyde by a series of reactions. The ligand and the synthesized complexes were characterized by elemental analysis, UV-Visible, FTIR, and XRD techniques. The ligand 5 behaves as a bidentate donor and coordinates with metals in square planar or tetrahedral fashion. In order to evaluate its bioactivity profile, we screened the Schiff base ligand and its
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29

R.N., Prasad, Agrawal Mithlesh, Ratnani Raju, and Saraswat Keerti. "Mixed ligand complexes of alkaline earth metals. Part-XV. MgII, CaII, SrII and BaII complexes with 2-hydroxy-1-naphthaldehyde and 2-hydroxybenzophenone, 5-bromosalicylaldehyde or 5-chlorosalicylaldehyde." Journal of Indian Chemical Society Vol. 83, Oct 2006 (2006): 957–60. https://doi.org/10.5281/zenodo.5830324.

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Department of Chemistry, University of Rajasthan, Jaipur-302 004, Rajasthan, India <em>E-mail </em>: prasadraghunandan@yahoo.com Department of Pure and Applied Chemistry, M. D. S. University, Ajmer-305 009, Rajasthan, India <em>Manuscript received 31 October 2005, revised 26 June 2006, accepted 27 June 2006</em> Reactions of Mg<sup>ll</sup>, Ca<sup>ll</sup>, Sr<sup>ll</sup> and Ba<sup>ll</sup> chlorides with 2-hydroxy-1-naphthaldehyde and 2-hydroxybenzophenone, 5-bromosalicylaldehyde or 5-chlorosalicylaldehyde in 1 : 1 : 1 molar ratios have yielded mixed ligand complexes of the type [MLL&#39;(
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30

Ding, Wenyong, Houli Zhang, Yuefei Xu, Li Ma, and Wenli Zhang. "Proteomic and Morphologic Evidence for Taurine-5-Bromosalicylaldehyde Schiff Base as an Efficient Anti-Mycobacterial Drug." Journal of Microbiology and Biotechnology 29, no. 8 (2019): 1221–29. http://dx.doi.org/10.4014/jmb.1901.01021.

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31

Misra, Sristicheta, Krishna Bihari Pandeya, Ashok Kumar Tiwari та ін. "Antihyperglycemic, α-glucosidase inhibitory and DPPH free radical scavenging activity of 5-bromosalicylaldehyde and schiff bases". Medicinal Chemistry Research 20, № 9 (2010): 1431–37. http://dx.doi.org/10.1007/s00044-010-9377-3.

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32

TAKJOO, REZA, ALIREZA HASHEMZADEH, HADI AMIRI RUDBARI, and FRANCESCO NICOLÒ. "Copper(II) and molybdenum(VI) complexes with 5-bromosalicylaldehyde S-allylisothiosemicarbazone: Syntheses, characterizations and crystal structures." Journal of Coordination Chemistry 66, no. 2 (2013): 345–57. http://dx.doi.org/10.1080/00958972.2012.748191.

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33

Jain, Rajendra K., and A. P. Mishra. "Microwave synthesis, spectral, thermal, and antimicrobial activities of some transition metal complexes involving 5-bromosalicylaldehyde moiety." Current Chemistry Letters 1, no. 4 (2012): 163–74. http://dx.doi.org/10.5267/j.ccl.2012.7.003.

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34

Gueye, Mbossé Ndiaye, Mariama Thiam, Pedro Henrique de Oliveira Santiago, et al. "Synthesis, and Characterization of Metal Transition Complexes Derived from the Schiff Base Ligand N,N'-Bis (5-bromosalicylidene)-Propane-1,2-Diamine (H2L)." Chemical Science International Journal 33, no. 6 (2024): 248–61. https://doi.org/10.9734/csji/2024/v33i6942.

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Five new transition metal complexes [Mn(L)(Cl)] (1), [Fe(L)(Cl)] (2), [Co(L)(H2O)2] (3), [Ni(L)(H2O)] (4) and [Cu(L)] (5), are synthesized from the Schiff base ligand N,N'-Bis(5-bromosalicylidene)-propane-1,2-diamine (H2L) which derived from the condensation of 5-bromosalicylaldehyde with propane-1,2-diamine in methanol. The complexes are characterized by elemental analysis, FTIR and UV-visible spectroscopies, conductivity and magnetic moment measurements. The results show that the complexes 1-5 are mononuclear neutral electrolytes in DMF. The dinegative tetradentate ligand is coordinated to t
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35

Bourque, Tara A., Megan E. Nelles, Teri J. Gullon, et al. "Late metal salicylaldimine complexes derived from 5-aminosalicylic acid — Molecular structure of a zwitterionic mono Schiff base zinc complex." Canadian Journal of Chemistry 83, no. 8 (2005): 1063–70. http://dx.doi.org/10.1139/v05-091.

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Condensation of salicylaldehyde (2-HOC6H4C(O)H) with 5-aminosalicylic acid (5-H2NC6H3-2-(OH)-CO2H) afforded the Schiff base 2-HOC6H4C(H)=NC6H3-2-(OH)-5-CO2H (a). Similar reactivity with 5-bromosalicylaldehyde was also observed to give 5-Br-2-HOC6H3C(H)=NC6H3-2-(OH)-5-CO2H (b). Reaction of these salicylaldehydes with Pd(II), Cu(II), and Zn(II) salts gave the corresponding bis(N-arylsalicylaldiminato)metal complexes (M = Pd (1), Cu (2), Zn (3)). The molecular structure of the Schiff base compound a has been confirmed by an X-ray diffraction study. Crystals of a were monoclinic, space group P2(1)
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36

Zhang, Li, Xiao-Yang Qiu, and Shu-Juan Liu. "Syntheses, Characterization, Crystal Structures and Antimicrobial Activity of Copper(II), Nickel(II) and Zinc(II) Complexes Derived from 5-Bromo-2- ((cychlopentylimino)methyl)phenol." Acta Chimica Slovenica 70, no. 1 (2023): 12–20. http://dx.doi.org/10.17344/acsi.2022.7737.

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Four new complexes of copper(II), nickel(II) and zinc(II), [CuL2] (1), [Ni3L2(4-BrSal)2(CH3COO)2(CH3OH)2]·2CH3OH(2), [ZnBr2(HL)2] (3) and [ZnL(dca)]n (4), where L is 5-bromo-2-((cychlopentylimino)methyl)phenolate, HL is the zwitterionic form of 5-bromo-2-((cychlopentylimino)methyl)phenol, 4-BrSal is the monoanionic form of 4-bromosalicylaldehyde, dca is dicyanamide anion, were synthesized and characterized by elemental analysis, IR and UV-Vis spectroscopy. The structures of the complexes were further confirmed by single crystal X-ray structure determination. Complex 1 is a mononuclear copper(I
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37

Rajiv, Dahiya, Pathak Devender, and Kaur Ramninder. "Synthesis, characterization and biological screening of some new aryloxyacetic acid analogs." Journal of Indian Chemical Society Vol. 85, July 2008 (2008): 754–58. https://doi.org/10.5281/zenodo.5817206.

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Depertment of Pharmaceutical Chemistry, Rajiv Academy for Pharmacy, Mathura-281 001, Uttar Pradesh, India <em>E-mail : </em>rajivdahiya04@yahoo.co.in; rajivdahiya77@rediffmail.com <em>Manuscript received 26 November 2007, revised 1 April 2008, accepted 6 May 2008</em> A novel series of 2-(4-bromo-2-formyl-phenoxy)acetyl amino acid and peptide analogs was synthesized by the coupling of 2-(4-bromo-2-formyl-phenoxy)acetic acid with different amino acid methyl ester hydrochlorides, dipeptide and tripeptide methyl esters using dicyclohexylcarbodiimide as the coupling agent and N-methylmorpholine as
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38

Buvaylo, Olena A., Vladimir N. Kokozay, Mykola V. Ischenko, Olga Yu Vassilyeva, and Brian W. Skelton. "New nickel mixed-ligand complex containing 2-aminopyrimidine and 5-bromosalicylaldehyde with a one-dimensional hydrogen bonded structure." Journal of Molecular Structure 1048 (September 2013): 460–63. http://dx.doi.org/10.1016/j.molstruc.2013.06.016.

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39

Rusanova, Julia A., Vladimir N. Kokozay та Olena Bondarenko. "Crystal structure of bis(μ-{2-[(5-bromo-2-oxidobenzylidene)amino]ethyl}sulfanido-κ3 N,O,S){2,2′-[(3,4-dithiahexane-1,6-diyl)bis(nitrilomethanylylidene)]bis(4-bromophenolato)-κ4 O,N,N′,O′}dicobalt(III) dimethylformamide monosolvate". Acta Crystallographica Section E Crystallographic Communications 75, № 6 (2019): 863–66. http://dx.doi.org/10.1107/s2056989019007217.

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The title binuclear CoIII complex, [Co2(C9H8BrNOS)2(C18H16Br2N2O2S2)]·C3H7NO, with a Schiff base ligand formed in situ from cysteamine (2-aminoethanethiol) and 5-bromosalicylaldehyde crystallizes in the space group P21. It was found that during the synthesis the ligand undergoes spontaneous oxidation, forming the new ligand H2 L′ having an S—S bond. Thus, the asymmetric unit consists of one Co2(L)2(L′) molecule and one DMF solvent molecule. Each CoIII ion has a slightly distorted octahedral S2N2O2 coordination geometry. In the crystal, the components are linked into a three-dimensional network
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40

Yuan, Ruqiang, Yunpeng Diao, Wenli Zhang, et al. "In Vitro Activity of Taurine-5-Bromosalicylaldehyde Schiff Base Against Planktonic and Biofilm Cultures of Methicillin-Resistant Staphylococcus aureus." Journal of Microbiology and Biotechnology 24, no. 8 (2014): 1059–64. http://dx.doi.org/10.4014/jmb.1401.01037.

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41

Ngoc Tu, Le, Le Van Tan, and Nguyen Xuan Chien. "SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION OF Cu(II) AND Co(II) USING 5-BROMOSALICYLALDEHYDE THIOSEMICARBAZONE BY PARTIAL LEAST SQUARES REGRESSION METHOD." Rasayan Journal of Chemistry 11, no. 2 (2018): 850–56. http://dx.doi.org/10.31788/rjc.2018.1122088.

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42

Zhang, Li, Xiao-Yang Qiu, and Shu-Juan Liu. "Syntheses, Characterization, Crystal Structures and Antimicrobial Activity of Copper(II), Nickel(II) and Zinc(II) Complexes Derived from 5-Bromo-2- ((cychlopentylimino)methyl)phenol." Acta Chimica Slovenica 70, no. 1 (2023): 12–20. http://dx.doi.org/10.17344/acsi.2022.10.17344/acsi.2022.7737.

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Four new complexes of copper(II), nickel(II) and zinc(II), [CuL2] (1), [Ni3L2(4-BrSal)2(CH3COO)2(CH3OH)2]·2CH3OH (2), [ZnBr2(HL)2] (3) and [ZnL(dca)]n (4), where L is 5-bromo-2-(cychlopentylimino)methyl)phenolate, HL is the zwitterionic form of 5-bromo-2-((cychlopentylimino)methyl)phenol, 4-BrSal is the monoanionic form of 4-bromosalicylaldehyde, dca is dicyanamide anion, were synthesized and characterized by elemental analysis, IR and UV-Vis spectroscopy. The structures of the complexes were further confirmed by single crystal X-ray structure determination. Complex 1 is a mononuclear copper(I
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43

Mithlesh, Agrawal, N. Prasad R. та Kaur Gurjeet. "Synthesis and characterization of mixed ligand complexes of Mn11 with 2-hydroxy-1-naphthaldehyde and salicylaldehyde, substituted salicylaldehyde, hydroxy aryl ketones or β-diketones". Journal of Indian Chemical Society Vol. 89, Feb 2012 (2012): I97–203. https://doi.org/10.5281/zenodo.5752472.

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Department of Chemistry, University of Rajasthan, Jaipur-302 004, Rajasthan, India <em>E-mail</em> : mithagr@gmail.com <em>Manuscript received 02 November 2010, revised 17 June 2011, accepted 20 June 2011</em> A series of mixed ligand complexes of Mn<sup>II</sup> of the type [MnLL&#39;(H<sub>2</sub>0)<sub>2</sub>], (where HL = 2-hydroxy-1-naphthaldehyde and HL&#39; = salicylaldehyde, 5-bromosalicylaldehyde, 5-nitrosalicylaldehyde, 2-hydroxyacetophenone, 2- hydroxypropiophenone, 2-hydroxybenzophenone, pentane-2,4-dione, I-phenylbutane-1,3-dione or 1,3-diphenylpropane-1 ,3- dione) have been synt
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44

C., K. BHASKARE, P. HANKARE P., and S. RAMPURE R. "Complex Formation with some Bidentate Ligands. I. Solution Equilibria in the Complex Formation of Bivalent Metal Ions with some vic-Hydroxy Aldehydes." Journal of Indian Chemical Society Vol. 63, Mar 1986 (1986): 286–87. https://doi.org/10.5281/zenodo.6241464.

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Department of Chemistry, Shivaji University, Kolhapur-416 004 Department of Chemistry, Sangameshwar College, Solapur-413 003 <em>Manuscript received 14 May 1982, revised 17 May 1983, accepted 3 March 1986</em> The proton-ligand stability constants of salicylaldehyde, 3 methylsalicylaldehyde, 4 methylsalicylaldehyde, 5-methylsalicylaldehyde and 5-bromosalicylaldehyde, and stability constants of their complexes with Cu<em><sup>II</sup></em>&nbsp;Co<em><sup>II</sup></em>, Ni<em><sup>II</sup></em>, Mn<em><sup>II</sup></em>, Zn<em><sup>II</sup></em>, Cd<em><sup>II</sup></em>&nbsp;and Mg<em><sup>II<
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45

Vassilyeva, Olga Yu, Elena A. Buvaylo, Vladimir N. Kokozay, Sergey L. Studzinsky, Brian W. Skelton, and Georgii S. Vasyliev. "NiII molecular complex with a tetradentate aminoguanidine-derived Schiff base ligand: structural, spectroscopic and electrochemical studies and photoelectric response." Acta Crystallographica Section E Crystallographic Communications 78, no. 2 (2022): 173–78. http://dx.doi.org/10.1107/s2056989022000317.

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The new molecular nickel(II) complex, namely, {4-bromo-2-[({N′-[(2-oxidobenzylidene)amino]carbamimidoyl}imino)methyl]phenolato}nickel(II) N,N-dimethylformamide solvate monohydrate, [Ni(C15H11BrN4O2)]·C3H7NO·H2O, (I), crystallizes in the triclinic space group P\overline{1} with one molecule per asymmetric unit. The guanidine ligand is a product of Schiff base condensation between aminoguanidine, salicylaldehyde and 5-bromosalicylaldehyde templated by Ni2+ ions. The chelating ligand molecule is deprotonated at the phenol O atoms and coordinates the metal centre through the two azomethine N and t
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46

M., L. Harikumaran Nair, S. Pramila Gladis M., and Sheela A. "Synthesis, spectral and thermal studies of dioxouranium(VI) complexes of Schiff bases derived from 2,3-dimethyl-1-phenyl-4-amino pyrazol-5-one." Journal of Indian Chemical Society Vol. 84, Sep 2007 (2007): 861–66. https://doi.org/10.5281/zenodo.5827015.

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Department of Chemistry, University College, Thiruvananthapuram-695 034, Kerala, India <em>E-mail</em> : drmlhna-ir@gmail.com <em>Manuscript received 19 April 2007, revised 27 June 2007, accepted 28 June 2007</em> Some novel metal complexes of dioxouranium(VI) with Schiff bases derived from 4-aminoantipyrine and 5- bromosalicylaldehyde/<em>p</em>-anisaldehyde have been synthesized and characterized by elemental analyses, IR, UV, <sup>1</sup>H NMR spectra, thermal studies, magnetic and conductance measurements. The X-ray diffraction patterns of the complex [UO<sub>2</sub>(ASAP)<sub>2</sub>(Ac)<
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47

Xu, Li-Qing, Li-Ping Lu, and Miao-Li Zhu. "Analogy to a Chinese knot in an ion-pair copper(II)–neodymium(III) complex based on a hexadentate Schiff base condensation product of 5-bromosalicylaldehyde and glycylglycine." Acta Crystallographica Section C Crystal Structure Communications 69, no. 4 (2013): 376–79. http://dx.doi.org/10.1107/s0108270113006367.

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Self-assembly of CuCl2, NdCl3, 5-bromosalicylaldehyde and glycylglycine yields the ion-pair copper(II)–neodymium(III) complex, poly[[decaaquabis[μ3-2-({2-[(5-bromo-2-oxidobenzylidene)amino]acetyl}azanidyl)acetato]bis[μ2-2-({2-[(5-bromo-2-oxidobenzylidene)amino]acetyl}azanidyl)acetato]tetracopper(II)dineodymium(III)] bis{[2-({2-[(5-bromo-2-oxidobenzylidene)amino]acetyl}azanidyl)acetato]cuprate(II)} tetradecahydrate], {[Cu4Nd2(C11H8BrN2O4)4(H2O)10][Cu(C11H8BrN2O4)]2·14H2O}n. The anion is planar and mononuclear, showing an approximately square-planar coordination of the metal atom, while the cati
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48

Powell, Robyn E., Martin R. Lees, Graham J. Tizzard та Petra J. van Koningsbruggen. "FeIII in a high-spin state in bis(5-bromosalicylaldehyde 4-ethylthiosemicarbazonato-κ3 O,N 1,S)ferrate(III) nitrate monohydrate, the first example of such a cationic FeIII complex unit". Acta Crystallographica Section C Structural Chemistry 78, № 1 (2021): 63–69. http://dx.doi.org/10.1107/s2053229621013462.

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The synthesis and crystal structure (100 K) of the title compound, [Fe(C10H11BrN3OS)2]NO3·H2O, is reported. The asymmetric unit consists of an octahedral [FeIII(HL)2]+ cation, where HL − is H-5-Br-thsa-Et or 5-bromosalicylaldehyde 4-ethylthiosemicarbazonate(1−) {systematic name: 4-bromo-2-[(4-ethylthiosemicarbazidoidene)methyl]phenolate}, a nitrate anion and a noncoordinated water molecule. Each HL − ligand binds via the thione S, the imine N and the phenolate O atom, resulting in an FeIIIS2N2O2 chromophore. The ligands are orientated in two perpendicular planes, with the O and S atoms in cis
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49

Fasina, T. M., O. Ogundele, F. N. Ejiah, and C. U. Dueke-Eze. "Biological Activity of Copper (II), Cobalt (II) and Nickel (II) Complexes of Schiff Base Derived from O-phenylenediamine and 5-bromosalicylaldehyde." International Journal of Biological Chemistry 6, no. 1 (2011): 24–30. http://dx.doi.org/10.3923/ijbc.2012.24.30.

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50

Jurowska, Anna, Wiktoria Serafin, Maciej Hodorowicz, Krzysztof Kruczała, and Janusz Szklarzewicz. "Vanadium precursors and the type of complexes formed with Schiff base ligand composed of 5-bromosalicylaldehyde and 2-hydroxybenzhydrazide – Structure and characterization." Polyhedron 222 (August 2022): 115903. http://dx.doi.org/10.1016/j.poly.2022.115903.

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