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Song Y, Jin Z, Zhang J, Jin B, Peng R. Spiral gas-solid two-phase flow continuous mechanochemical synthesis of salophen complexes and catalytic thermal decomposition of ammonium perchlorate. Dalton Trans 2024; 53:3765-3776. [PMID: 38304968 DOI: 10.1039/d3dt03644h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Although mechanochemistry is increasingly becoming an alternative to traditional chemical synthesis, highly efficient continuous mechanochemical synthesis techniques are still rare. In this work, a novel spiral gas-solid two-phase flow (S-GSF) synthesis technique for the mechanochemical synthesis of salophen complexes has been reported, which is an approach for continuous synthesis based solely on airflow impacting the reaction. The synthesis of salophen-Br-Cu was used as a model reaction to optimize the reaction conditions, and three other salophen complexes, namely, salophen-Br-Co, salophen-Br-Ni, and salophen-Br-Zn were synthesized on this basis. The structure and thermal stability of the obtained products were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, UV-vis spectroscopy, nuclear magnetic resonance spectroscopy, scanning electron microscopy, and differential thermal analysis (DTA). The results showed that these complexes can be obtained continuously at a rate close to 4 g min-1, and the corresponding space-time yield is close to 1.2 × 105 kg m-3 day-1. In addition, DTA was used to analyze the catalytic performance of the complex for ammonium perchlorate (AP). The results showed that compared to the conditions for pure AP, salophen-Br-Co and salophen-Br-Cu could significantly reduce the high-temperature decomposition of AP pyrolysis to 77.0 and 102.1 °C, respectively. According to the method of Kissinger calculations, the Ea of AP decomposition decreased from 217.3 kJ mol-1 to 131.0 and 118.5 kJ mol-1, respectively. The TG data at different heating rates were analyzed using two isoconversion methods, i.e. Flynne-Walle-Ozawa (FWO) and Kissinger-Akahira-Sunose (KAS). The activation energies of AP, AP + 10 wt% salophen-Br-Co, and AP + 10 wt% salophen-Br-Cu were calculated. When the conversion degree (α) is between 0.1 and 0.9, the Ea values obtained from the two isoconversion methods are similar and exhibit certain matching. These two isoconversion methods also confirm Kissinger's calculations.
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Affiliation(s)
- Yong Song
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, China.
| | - Zhiyuan Jin
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, China.
| | - Juan Zhang
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, China.
| | - Bo Jin
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, China.
| | - Rufang Peng
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, China.
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2
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Xu V, Pandey B, Jayawardhena JPID, Krause JA, Guan H. The curious cases of tetrahydrosalen-type ligands interacting with Ni(II): structures and ligand-based oxidation reactions. Dalton Trans 2023; 52:11543-11551. [PMID: 37545404 DOI: 10.1039/d3dt02023a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
This work centers around the nickel complexes derived from two tetrahydrosalen-type proligands: N,N'-bis(2-hydroxybenzyl)-o-phenylenediamine (H2salophan) and N,N'-bis(2-hydroxy-3-methylbenzyl)-o-phenylenediamine (H2salophan_Me). The reaction of H2salophan with Ni(OAc)2·4H2O generates a dinuclear complex Ni2(Hsalophan)2(OAc)2 or Na[Ni2(salophan)2(OAc)] when NaOH is added to assist ligand deprotonation. The reaction of H2salophan_Me with Ni(OAc)2·4H2O, however, yields a mononuclear complex Ni(Hsalophan_Me)2. Unlike the corresponding salen-type nickel complexes, these tetrahydrosalen-type complexes are paramagentic and air sensitive (in solution). Oxidation by O2 or peroxides results in dehydrogenation of the ligand backbone to form the salen-type complexes.
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Affiliation(s)
- Vivian Xu
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221-0172, USA.
| | - Bedraj Pandey
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221-0172, USA.
| | | | - Jeanette A Krause
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221-0172, USA.
| | - Hairong Guan
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221-0172, USA.
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3
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Villaman D, Vega A, Santa Maria de la Parra L, León IE, Levín P, Toro PM. Anticancer activity of Ni(II) and Zn(II) complexes based on new unsymmetrical salophen-type ligands: synthesis, characterization and single-crystal X-ray diffraction. Dalton Trans 2023; 52:10855-10868. [PMID: 37486008 DOI: 10.1039/d3dt00800b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
The discovery of new coordination compounds with anticancer properties is an active field of research due to the severe side effects of platinum-based compounds currently used in chemotherapy. In the search for new agents for the treatment of cancer, unsymmetrical N2O2-tetradentate ligand (H2L1 and H2L2) and their Ni(II) and Zn(II) asymmetric complexes (NiII-L1-2 and ZnII-L1-2) have been synthesized and fully characterized. 1H NMR studies revealed that the ligands and complexes were stable in mixtures of DMSO : D2O (9 : 1). Complementary UV-Vis studies confirmed that ZnII derivatives also exhibit high stability in mixtures DMSO : buffer (6 : 4) after 24 h. Single-crystal X-ray diffraction studies confirmed the molecular structures of H2L1, H2L2, NiII-L1, and NiII-L2. At the molecular level, complexes were completely planar without significant distortions of the square-planar geometry according to τ4 parameter. Furthermore, the crystalline structures revealed non-classical intermolecular interactions of the C-H⋯O and the Ni⋯Ni type. The ligands and complexes were screened against the human osteosarcoma (MG-63), human colon cancer (HCT-116), breast cancer (MDA-MB-231) cell lines, and non-cancerous cells (L929). H2L1 and H2L2 ligands not caused cytotoxic effects at a concentration of 100 μM, while NiII-L2, ZnII-L1, and ZnII-L2 complexes induce cytotoxic effects in all cell lines. NiII-L2 was a more active complex against MG-63 (3.9 ± 1.5) and HCT-116 (3.4 ± 1.7) cell lines with IC50 values in the low micromolar range. In addition, this compound was 10-, 5-, and 11-fold more potent than cisplatin in MG-63 (39 ± 1.8), HCT-116 (17.2), and MDA-MB-231 (131 ± 18), respectively. Three complexes exhibited great selectivity for tumoral cells with SI values ranging from 1.6 to 7.4.
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Affiliation(s)
- David Villaman
- Laboratorio de Química Inorgánica y Organometálica, Facultad de Cs. Química, Universidad de Concepción, Chile.
| | - Andrés Vega
- Universidad Andrés Bello, Facultad de Ciencias Exactas, Departamento de Ciencias Químicas, Av. República 498, Santiago, Chile
| | - Lucía Santa Maria de la Parra
- CEQUINOR (UNLP, CCT-CONICET La Plata, Asociado a CIC), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Blvd. 120 No. 1465, La Plata 1900, Argentina
| | - Ignacio E León
- CEQUINOR (UNLP, CCT-CONICET La Plata, Asociado a CIC), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Blvd. 120 No. 1465, La Plata 1900, Argentina
- Cátedra de Fisiopatología, Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115, La Plata 1900, Argentina
| | - Pedro Levín
- Departamento de Química de los Materiales, Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Libertador Bernardo O'Higgins 3363, Estación Central, Santiago, Chile
| | - Patricia M Toro
- Instituto de Ciencias Aplicadas, Facultad de Ingeniería, Universidad Autónoma de Chile, Talca, Chile.
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4
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Lewis Acidic Zinc(II) Complexes of Tetradentate Ligands as Building Blocks for Responsive Assembled Supramolecular Structures. CHEMISTRY 2023. [DOI: 10.3390/chemistry5010010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
This review presents representative examples illustrating how the Lewis acidic character of the Zn(II) metal center in Zn(salen)-type complexes, as well as in complexes of other tetradentate ligands, and the nature of the medium govern their supramolecular aggregation, leading to the formation of a variety of supramolecular structures, either in solution or in the solid state. Stabilization of these Lewis acidic complexes is almost always reached through an axial coordination of a Lewis base, leading to a penta-coordinated square-pyramidal geometry around the metal center. The coverage is not exhaustive, mainly focused on their crystallographic structures, but also on their aggregation and sensing properties in solution, and on their self-assembled and responsive nanostructures, summarizing their salient aspects. The axial ligands can easily be displaced, either in solution or in the solid state, with suitable Lewis bases, thus being responsive supramolecular structures useful for sensing. This contribution represents the first attempt to relate some common features of the chemistry of different families of Zn(II) complexes of tetradentate ligands to their intrinsic Lewis acidic character.
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Dou L, Tong L, Yan YB, Deng YH, Dong WK. EXPERIMENTAL AND THEORETICAL STUDY OF A SANDWICH-LIKE PHENOXO-BRIDGED HETEROBIMETALLIC ZINC(II)–MANGANESE(III) 3-MeOSALPHEN COMPLEX. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622080054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Shahraki S. Schiff base compounds as artificial metalloenzymes. Colloids Surf B Biointerfaces 2022; 218:112727. [PMID: 35921691 DOI: 10.1016/j.colsurfb.2022.112727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 07/19/2022] [Accepted: 07/24/2022] [Indexed: 11/16/2022]
Abstract
Much research has been done on traditional homogeneous metal catalysts and enzymatic catalysts, but recently a new class of hybrid catalysts called synthetic (artificial) metalloenzymes has been considered by researchers. Metalloenzymes as hybrid catalysts (host-guest systems) have been shown that combine the properties of a homogeneous and also enzymatic catalyst. The hybrid catalyst will have added value such as enantioselectivity or chemo-selectivity. This review focuses on Schiff base complexes that either act as homogeneous artificial enzymes or contribute to the structure of a host in the preparation of hybrid metalloenzymes. Because this approach can virtually be applied to any bio- or synthetic host or guest coordination complex, the details of hybrid catalysts seem important for advance in catalysis.
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Ng YZ, Tan KW, Chung LY, Salim F, Low ML, Ooi IH, Yip FW, Ng CH. Zinc(II)-Schiff base complex functionalized on gold nanospheres: synthesis, characterization, anticancer study and interaction with proteins. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2097869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Yin Zhuang Ng
- Chemistry Department, University of Malaya, Kuala Lumpur, Malaysia
| | - Kong Wai Tan
- Chemistry Department, University of Malaya, Kuala Lumpur, Malaysia
| | - Lip Yong Chung
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Malaya, Kuala Lumpur, Malaysia
| | - Fatimah Salim
- Atta-ur-Rahman Institute for Natural Product Discovery (AuRIns), Universiti Teknologi Mara, Selangor, Malaysia
| | - May Lee Low
- Department of Pharmaceutical Chemistry, School of Pharmacy, International Medical University, Kuala Lumpur, Malaysia
| | - Ing Hong Ooi
- Department of Pharmaceutical Chemistry, School of Pharmacy, International Medical University, Kuala Lumpur, Malaysia
| | - Foo Win Yip
- Department of Chemistry, Faculty of Science, Universiti Tunku Abdul Rahman, Kampar, Perak, Malaysia
| | - Chew Hee Ng
- Department of Pharmaceutical Chemistry, School of Pharmacy, International Medical University, Kuala Lumpur, Malaysia
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8
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Mahadevi P, Sumathi S, Metha A, Singh J. Synthesis, spectral, antioxidant, in vitro cytotoxicity activity and thermal analysis of Schiff base metal complexes with 2,2′-Bipyridine-4,4′-dicarboxylic acid as co-ligand. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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9
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DNA/Protein binding and anticancer activity of Zn(II) complexes based on azo-Schiff base ligands. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Taha ZA, Hijazi AK, Al-Smadi AY, Al-Momani WM, Wedian F. Lanthanide Complexes with N,N-Bis-(2-hydroxy-5-nitrobenzylidene)-1,2-phenylenediamine Schiff Base Ligand: Synthesis, Characterization, Photophysical Properties, and Biological Activity. RUSS J GEN CHEM+ 2021. [DOI: 10.1134/s1070363221110177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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11
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Di Bella S. Lewis acidic zinc(II) salen-type Schiff-base complexes: sensing properties and responsive nanostructures. Dalton Trans 2021; 50:6050-6063. [PMID: 33876173 DOI: 10.1039/d1dt00949d] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In this frontier article some peculiar characteristics of Zn(salen)-type Schiff-base complexes are reviewed. The paper is mainly focused on the most recent and relevant achievements on responsive supramolecular nanostructures and sensing properties, both of them related to the Lewis acidic character of the ZnII centre in these molecular species, providing an interpretation of these features. The sensing properties of Zn(salen)-type complexes mainly originate from optical spectroscopic changes associated with the formation of the adducts upon addition of a Lewis base (analyte), either by deaggregation of dimeric species or displacement of the solvent coordinated to the metal centre. In both cases the direct sensing is related either to the Lewis acidic character of the complex as well as to the Lewis basicity of the analyte. The formation of responsive nanostructures with fluorescent, and/or vapochromic, mechanochromic, and thermochromic characteristics is driven by non-mutual intermolecular ZnO interactions, further stabilized by π-π stacking interactions and/or interdigitation of the alkyl side groups. The Lewis acidic character is not a prerogative of Zn(salen)-type complexes of tetradentate Schiff-bases. Many other classes of ZnII complexes can possess this property. A correct interpretation of their chemistry is certainly useful for further development of these classical coordination compounds as new molecular materials.
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Affiliation(s)
- Santo Di Bella
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy.
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12
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Rani JJ, Jayaseeli AMI, Rajagopal S, Seenithurai S, Chai JD, Raja JD, Rajasekaran R. Synthesis, characterization, antimicrobial, BSA binding, DFT calculation, molecular docking and cytotoxicity of Ni(II) complexes with Schiff base ligands. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115457] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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13
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Song H, Fan C, Wang R, Wang Z, Pu S. 1,10-Phenanthroline decorated with substituent groups forming europium(III) complexes: synthesis, crystal structure, photoluminescence properties and their bioimaging in living cells. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1824065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Huimin Song
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Congbin Fan
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Renjie Wang
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Zheng Wang
- Lehn Institute of Functional materials, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Shouzhi Pu
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
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14
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Song JB, Wang P, Yan L, Hao L, Khan MA, Liu GL, Li H. Crystal structures, red-shifted luminescence and iodide-anion recognition properties of four novel D-A type Zn(ii) complexes. Dalton Trans 2020; 49:4358-4368. [PMID: 32163063 DOI: 10.1039/c9dt04840e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Four D-A type Zn(ii) coordination complexes, [Zn(C29H29N3O2)·(CH3OH)]·(CH3OH) (1), Zn2(C74H90N6O4)·(CH3OH) (2), [Zn(C30H28N4O2)·(CH3OH)]·(CH3OH) (3) and [Zn(C38H44N4O2)·(C2H5OH)]·(C2H5OH) (4), were designed, synthesized, and studied. Their fluorescence properties in the solid state and in THF solution were comprehensively analysed based on their single-crystal structures. The results showed that the red-shift of fluorescence emission from complexes 1 to 4 was successfully achieved via the strategy of enhancing intramolecular charge transfer (ICT) effects by increasing the number of electron-pulling and pushing groups gradually. Meanwhile, because of the fluorescence recognition abilities of these four complexes towards iodide anions in THF, they could be regarded as potential fluorescent sensors for I- in this organic solution in the future.
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Affiliation(s)
- Jian-Biao Song
- Key Laboratory of Clusters Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
| | - Pengfei Wang
- Key Laboratory of Clusters Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
| | - Li Yan
- Analysis and Testing Center, Beijing Institute of Technology, Beijing, 100081, P. R. China.
| | - Liang Hao
- Key Laboratory of Clusters Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
| | - Maroof Ahmad Khan
- Key Laboratory of Clusters Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
| | - Gui-Lei Liu
- National Research Center for Geoanalysis, Beijing 100037, P. R. China.
| | - Hui Li
- Key Laboratory of Clusters Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
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15
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Pikoli S, Hosten E, Abrahams A. The effect of ligand design on the structural and photophysical properties of Nd(III) complexes with Schiff bases of the [(phenylimino)methyl]phenol-type. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1750604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Sibongile Pikoli
- Department of Chemistry, Nelson Mandela University, Port Elizabeth, South Africa
| | - Eric Hosten
- Department of Chemistry, Nelson Mandela University, Port Elizabeth, South Africa
| | - Abubak’r Abrahams
- Department of Chemistry, Nelson Mandela University, Port Elizabeth, South Africa
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16
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Optical, electrochemical, thermal, biological and theoretical studies of some chloro and bromo based metal-salophen complexes. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127107] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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17
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Sagasser J, Ma BN, Baecker D, Salcher S, Hermann M, Lamprecht J, Angerer S, Obexer P, Kircher B, Gust R. A New Approach in Cancer Treatment: Discovery of Chlorido[ N, N'-disalicylidene-1,2-phenylenediamine]iron(III) Complexes as Ferroptosis Inducers. J Med Chem 2019; 62:8053-8061. [PMID: 31369259 DOI: 10.1021/acs.jmedchem.9b00814] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Chlorido[N,N'-disalicylidene-1,2-phenylenediamine]iron(III) complexes generate lipid-based ROS and induce ferroptosis in leukemia and neuroblastoma cell lines. The extent of ferroptosis on the mode of action is regulated by simple modifications of the substituents at the 1,2-phenylenediamine moiety. In HL-60 cells, the unsubstituted lead exclusively caused ferroptosis. For instance, a 4-F substituent shifted the mode of action toward both ferroptosis and necroptosis, while the analogously chlorinated derivative exerted only necroptosis. Remarkably, cell-death in NB1 neuroblastoma cells was solely induced by ferroptosis, independent of the used substituents. The effects were higher than that of the therapeutically applied drug cisplatin. These data clearly demonstrate for the first time that not only iron ions but also iron salophene complexes are potent ferroptosis inducers, which can be optimized as antitumor agents.
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Affiliation(s)
- Jessica Sagasser
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, CMBI-Center for Molecular Biosciences Innsbruck , University of Innsbruck, CCB-Center for Chemistry and Biomedicine , Innrain 80-82 , 6020 Innsbruck , Austria
| | - Benjamin N Ma
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, CMBI-Center for Molecular Biosciences Innsbruck , University of Innsbruck, CCB-Center for Chemistry and Biomedicine , Innrain 80-82 , 6020 Innsbruck , Austria
| | - Daniel Baecker
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, CMBI-Center for Molecular Biosciences Innsbruck , University of Innsbruck, CCB-Center for Chemistry and Biomedicine , Innrain 80-82 , 6020 Innsbruck , Austria
| | - Stefan Salcher
- Tyrolean Cancer Research Institute , Innrain 66 , 6020 Innsbruck , Austria
| | - Martin Hermann
- Department of Anesthesiology and Critical Care Medicine , Medical University Innsbruck , Anichstraße 35 , 6020 Innsbruck , Austria
| | - Julia Lamprecht
- Tyrolean Cancer Research Institute , Innrain 66 , 6020 Innsbruck , Austria
| | - Stefanie Angerer
- Tyrolean Cancer Research Institute , Innrain 66 , 6020 Innsbruck , Austria.,Immunobiology and Stem Cell Laboratory, Department of Internal Medicine V (Hematology and Oncology) , Medical University Innsbruck , Anichstraße 35 , 6020 Innsbruck , Austria
| | - Petra Obexer
- Tyrolean Cancer Research Institute , Innrain 66 , 6020 Innsbruck , Austria.,Department of Pediatrics II , Medical University Innsbruck , Innrain 66 , 6020 Innsbruck , Austria
| | - Brigitte Kircher
- Tyrolean Cancer Research Institute , Innrain 66 , 6020 Innsbruck , Austria.,Immunobiology and Stem Cell Laboratory, Department of Internal Medicine V (Hematology and Oncology) , Medical University Innsbruck , Anichstraße 35 , 6020 Innsbruck , Austria
| | - Ronald Gust
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, CMBI-Center for Molecular Biosciences Innsbruck , University of Innsbruck, CCB-Center for Chemistry and Biomedicine , Innrain 80-82 , 6020 Innsbruck , Austria
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Consiglio G, Oliveri IP, Failla S, Di Bella S. On the Aggregation and Sensing Properties of Zinc(II) Schiff-Base Complexes of Salen-Type Ligands. Molecules 2019; 24:E2514. [PMID: 31324053 PMCID: PMC6651702 DOI: 10.3390/molecules24132514] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/08/2019] [Accepted: 07/09/2019] [Indexed: 12/18/2022] Open
Abstract
The zinc(II) ion forms stable complexes with a wide variety of ligands, but those related to Schiff-bases are among the most largely investigated. This review deals with the peculiar aggregation characteristics of Zn(II) Schiff-base complexes from tetradentate N2O2 salen-type ligands, L, derivatives from salicylaldehydes and 1,2-diamines, and is mostly focused on their spectroscopic properties in solution. Thanks to their Lewis acidic character, ZnL complexes show interesting structural, nanostructural, and aggregation/deaggregation properties in relation to the absence/presence of a Lewis base. Deaggregation of these complexes is accompanied by relevant changes of their spectroscopic properties that can appropriately be exploited for sensing Lewis bases. Thus, ZnL complexes have been investigated as chromogenic and fluorogenic chemosensors of charged and neutral Lewis bases, including cell imaging, and have shown to be selective and sensitive to the Lewis basicity of the involved species. From these studies emerges that these popular, Lewis acidic bis(salicylaldiminato)Zn(II) Schiff-base complexes represent classical coordination compounds for modern applications.
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Affiliation(s)
- Giuseppe Consiglio
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy
| | - Ivan Pietro Oliveri
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy
| | - Salvatore Failla
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy.
| | - Santo Di Bella
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy.
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A Simple and Efficient Mechanochemical Route for the Synthesis of Salophen Ligands and of the Corresponding Zn, Ni, and Pd Complexes. Molecules 2019; 24:molecules24122314. [PMID: 31234486 PMCID: PMC6631197 DOI: 10.3390/molecules24122314] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 06/19/2019] [Accepted: 06/20/2019] [Indexed: 11/17/2022] Open
Abstract
A number of salophen ligands and their Zn, Ni, and Pd complexes were synthesized by an efficient one-pot mechanosynthesis protocol. The reaction products were characterized by means of complementary solid-state techniques, i.e., powder X-ray diffraction, single-crystal X-ray diffraction, and solid-state NMR spectroscopy. Four new crystal structures of metal salophen complexes as DMSO solvates are here reported. The described simple and relatively fast (about 1 h for all derivatives) procedure is a good alternative to classical methods performed in organic solvents.
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Cao Q, Yang J, Zhang H, Hao L, Yang GG, Ji LN, Mao ZW. Traceable in-cell synthesis and cytoplasm-to-nucleus translocation of a zinc Schiff base complex as a simple and economical anticancer strategy. Chem Commun (Camb) 2019; 55:7852-7855. [DOI: 10.1039/c9cc03480c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A facile and cheap strategy based on visualized in-cell synthesis of theranostic Zn Schiff base complexes realizes cancer-specific therapy.
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Affiliation(s)
- Qian Cao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Jing Yang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Hang Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Liang Hao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Gang-Gang Yang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Liang-Nian Ji
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Zong-Wan Mao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
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21
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Biswas N, Saha S, Khanra S, Sarkar A, Prasad Mandal D, Bhattacharjee S, Chaudhuri A, Chakraborty S, Roy Choudhury C. Example of two novel thiocyanato bridged copper (II) complexes derived from substituted thiosemicarbazone ligand: structural elucidation, DNA/albumin binding, biological profile analysis, and molecular docking study. J Biomol Struct Dyn 2018; 37:2801-2822. [PMID: 30101692 DOI: 10.1080/07391102.2018.1503564] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Two novel copper (II) substituted thiosemicarbazone Schiff base complexes [Cu(L1)(µ-SCN)]n(NO3)2 (1) and [Cu2(µ-SCN)(SCN)(L2)2](NO3) (2) have been synthesized by condensing substituted thiosemicarbazides like 4-methyl-3-thiosemicarbazide or 4-ethyl-3-thiosemicarbazide with 2-acetylpyridine. Both the metal complexes 1 and 2 are characterized using different spectroscopic techniques like IR, UV-Vis, ESR spectroscopy followed by elemental analysis, cyclic voltammetric measurement and single crystal X-ray structure analysis. X-ray crystal structure analysis reveal that complex 1 is polymeric while complex 2 is dimeric in nature. The coordination geometry around Cu(II) are square pyramidal in which thiosemicarbazone Schiff base ligand coordinate to the central Cu(II) atom in tridentate fashion. The prominent interaction patterns of 1 and 2 with CT-DNA were examined by employing electronic absorption and emission spectral titrations, cyclic voltammetry and viscosity measurements. All the results show that CT-DNA binds with both copper (II) complexes 1 and 2. Furthermore, protein binding ability in vitro of complexes 1 and 2 with both BSA and HSA were carried out using multispectroscopic techniques and a static quenching pattern was observed in both cases. Molecular docking study was employed to ascertain the exact mechanism of action of 1 and 2 with DNA and protein molecules (BSA and HSA). In vitro cytotoxicity activity of complexes 1 and 2 toward AGS and A549 was evaluated using MTT assay which demonstrates that both complexes 1 and 2 have superior prospectus to act as anticancer agents. Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Niladri Biswas
- a Department of Chemistry , West Bengal State University , Barasat , India
| | - Sandeepta Saha
- a Department of Chemistry , West Bengal State University , Barasat , India.,b Sripur High School , Madhyamgram , India
| | - Sumit Khanra
- c Department of Chemistry , Indian Institute of Science Education and Research , Kolkata Mohanpur , India
| | - Arnab Sarkar
- d Department of Zoology , West Bengal State University , Barasat , India
| | - Deba Prasad Mandal
- d Department of Zoology , West Bengal State University , Barasat , India
| | | | - Ankur Chaudhuri
- e Department of Microbiology , West Bengal State University , Barasat , India
| | - Sibani Chakraborty
- e Department of Microbiology , West Bengal State University , Barasat , India
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22
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Nehra P, Khungar B, Singh RP, Sivasubramanian S, Jha PN, Saini V. Synthesis, characterization and applications of imidazolium ionic liquid-tagged zinc(II) complex. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.04.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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23
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Erxleben A. Transition metal salen complexes in bioinorganic and medicinal chemistry. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.06.060] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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A Cryptand-Type Aluminum Tris(salophen) Complex: Synthesis, Characterization, and Cell Imaging Application. INORGANICS 2018. [DOI: 10.3390/inorganics6010020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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25
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Yin HY, Tang J, Zhang JL. Introducing Metallosalens into Biological Studies: The Renaissance of Traditional Coordination Complexes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700695] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hao-Yan Yin
- Beijing National Laboratory for Molecular Sciences; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; 100871 Beijing P. R. China
| | - Juan Tang
- Beijing National Laboratory for Molecular Sciences; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; 100871 Beijing P. R. China
| | - Jun-Long Zhang
- Beijing National Laboratory for Molecular Sciences; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; 100871 Beijing P. R. China
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26
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Majumder S, Pasayat S, Panda AK, Dash SP, Roy S, Biswas A, Varma ME, Joshi BN, Garribba E, Kausar C, Patra SK, Kaminsky W, Crochet A, Dinda R. Monomeric and Dimeric Oxidomolybdenum(V and VI) Complexes, Cytotoxicity, and DNA Interaction Studies: Molybdenum Assisted C═N Bond Cleavage of Salophen Ligands. Inorg Chem 2017; 56:11190-11210. [DOI: 10.1021/acs.inorgchem.7b01578] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Sudarshana Majumder
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Sagarika Pasayat
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Alok K. Panda
- School of Basic
Sciences, Indian Institute of Technology Bhubaneswar, Bhubaneswar 751013, Odisha, India
| | - Subhashree P. Dash
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
- Department of Basic Sciences, Paralamaharaja Engineering College, Sitalapalli, Brahmapur, Odisha 761003, India
| | - Satabdi Roy
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Ashis Biswas
- School of Basic
Sciences, Indian Institute of Technology Bhubaneswar, Bhubaneswar 751013, Odisha, India
| | - Mokshada E. Varma
- Bioprospecting
Group, Agharkar Research Institute, G.G. Agharkar Road, Pune 411004, India
| | - Bimba N. Joshi
- Bioprospecting
Group, Agharkar Research Institute, G.G. Agharkar Road, Pune 411004, India
| | - Eugenio Garribba
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Vienna
2, I-07100 Sassari, Italy
| | - Chahat Kausar
- Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Samir Kumar Patra
- Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Werner Kaminsky
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195, United States
| | - Aurélien Crochet
- Department of Chemistry, Fribourg Center
for Nanomaterials, University of Fribourg, CH-1700 Fribourg, Switzerland
| | - Rupam Dinda
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
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27
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Ali A, Kamra M, Roy S, Muniyappa K, Bhattacharya S. Enhanced G-Quadruplex DNA Stabilization and Telomerase Inhibition by Novel Fluorescein Derived Salen and Salphen Based Ni(II) and Pd(II) Complexes. Bioconjug Chem 2017; 28:341-352. [PMID: 28165710 DOI: 10.1021/acs.bioconjchem.6b00433] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Metal based salen complexes have been considered as an important scaffold toward targeting of DNA structures. In the present work, we have synthesized nickel(II) and palladium(II) salen and salphen complexes by using readily available fluorescein as the backbone to provide an extended aromatic surface. The metal complexes exhibit affinity toward the human telomeric G-quadruplex DNA with promising inhibition of telomerase activity. This has been ascertained by their efficiency in the long term cell proliferation assay which showed significant cancer cell toxicity in the presence of the metal complexes. Confocal microscopy showed cellular internalization followed by localization in the nucleus and mitochondria. Considerable population at the sub-G1 phase of the cell cycle showed cell death via apoptotic pathway.
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Affiliation(s)
| | | | | | | | - Santanu Bhattacharya
- Director's Research Unit, Indian Association for the Cultivation of Science , Kolkata 700 032, India
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28
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Asatkar AK, Tripathi M, Panda S, Pande R, Zade SS. Cu(I) complexes of bis(methyl)(thia/selena) salen ligands: Synthesis, characterization, redox behavior and DNA binding studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 171:18-24. [PMID: 27458761 DOI: 10.1016/j.saa.2016.07.029] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 07/16/2016] [Indexed: 06/06/2023]
Abstract
Mononuclear cuprous complexes 1 and 2, [{CH3E(o-C6H4)CH=NCH2}2Cu]ClO4; E=S/Se, have been synthesized by the reaction of bis(methyl)(thia/selena) salen ligands and [Cu(CH3CN)4]ClO4. Both the products were characterized by elemental analysis, ESI-MS, FT-IR, 1H/13C/77Se NMR, and cyclic voltammetry. The complexes possess tetrahedral geometry around metal center with the N2S2/N2Se2 coordination core. Cyclic voltammograms of complexes 1 and 2 displayed reversible anodic waves at E1/2=+0.08V and +0.10V, respectively, corresponding to the Cu(I)/Cu(II) redox couple. DNA binding studies of both the complexes were performed applying absorbance, fluorescence and molecular docking techniques. Competitive binding experiment of complexes with ct-DNA against ethidium bromide is performed to predict the mode of binding. The results indicate the groove binding mode of complexes 1 and 2 to DNA. The binding constants revealed the strong binding affinity of complexes towards ct-DNA.
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Affiliation(s)
- Ashish K Asatkar
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur, 741252 Nadia, WB, India.
| | - Mamta Tripathi
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, India
| | - Snigdha Panda
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur, 741252 Nadia, WB, India
| | - Rama Pande
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, India
| | - Sanjio S Zade
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur, 741252 Nadia, WB, India
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29
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Biswas N, Khanra S, Sarkar A, Bhattacharjee S, Prasad Mandal D, Chaudhuri A, Chakraborty S, Roy Choudhury C. One new azido bridged dinuclear copper(ii) thiosemicarbazide complex: synthesis, DNA/protein binding, molecular docking study and cytotoxicity activity. NEW J CHEM 2017. [DOI: 10.1039/c7nj01998j] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biological potential of a copper(ii) complex found to exhibit in vitro antiproliferative activity towards two cell lines, AGS and A549 cancer cells.
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Affiliation(s)
- Niladri Biswas
- Department of Chemistry
- West Bengal State University
- Barasat
- India
| | - Sumit Khanra
- Department of Chemistry
- Indian Institute of Science Education and Research, Kolkata
- Mohanpur – 741 246
- India
| | - Arnab Sarkar
- Department of Zoology
- West Bengal State University
- Barasat
- India
| | | | | | - Ankur Chaudhuri
- Department of Microbiology
- West Bengal State University
- Barasat
- India
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30
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Ali A, Kamra M, Roy S, Muniyappa K, Bhattacharya S. Novel Oligopyrrole Carboxamide based Nickel(II) and Palladium(II) Salens, Their Targeting of Human G-Quadruplex DNA, and Selective Cancer Cell Toxicity. Chem Asian J 2016; 11:2542-54. [DOI: 10.1002/asia.201600655] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 07/16/2016] [Indexed: 01/22/2023]
Affiliation(s)
- Asfa Ali
- Department of Organic Chemistry; Indian Institute of Science; Bangalore 560 012 India
| | - Mohini Kamra
- Department of Organic Chemistry; Indian Institute of Science; Bangalore 560 012 India
| | - Soma Roy
- Department of Organic Chemistry; Indian Institute of Science; Bangalore 560 012 India
| | - K. Muniyappa
- Department of Biochemistry; Indian Institute of Science; Bangalore 560 012 India
| | - Santanu Bhattacharya
- Department of Organic Chemistry; Indian Institute of Science; Bangalore 560 012 India
- Director's Research Unit; Indian Association for the Cultivation of Science; Kolkata 700 032 India
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31
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Cheng J, Gou F, Zhang X, Shen G, Zhou X, Xiang H. A Class of Multiresponsive Colorimetric and Fluorescent pH Probes via Three Different Reaction Mechanisms of Salen Complexes: A Selective and Accurate pH Measurement. Inorg Chem 2016; 55:9221-9. [DOI: 10.1021/acs.inorgchem.6b01212] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jinghui Cheng
- College of Chemistry, Sichuan University, Chengdu 610041, China
| | - Fei Gou
- College of Chemistry, Sichuan University, Chengdu 610041, China
| | - Xiaohong Zhang
- College of Chemistry, Sichuan University, Chengdu 610041, China
| | - Guangyu Shen
- College of Chemistry, Sichuan University, Chengdu 610041, China
| | - Xiangge Zhou
- College of Chemistry, Sichuan University, Chengdu 610041, China
| | - Haifeng Xiang
- College of Chemistry, Sichuan University, Chengdu 610041, China
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32
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Gupta AK, Dhir A, Pradeep CP. Multifunctional Zn(II) Complexes: Photophysical Properties and Catalytic Transesterification toward Biodiesel Synthesis. Inorg Chem 2016; 55:7492-500. [PMID: 27439021 DOI: 10.1021/acs.inorgchem.6b00804] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Using 4-substituted derivatives of phenol-based compartmental Schiff-base hydroxyl-rich ligand, four multifunctional binuclear Zn(II) complexes have been synthesized and characterized. The photophysical properties of these complexes were explored in the solid state, in solutions, and in poly(methyl methacrylate) (PMMA) matrix, which revealed their good potential as tunable solid state emitters. Some of these complexes acted as efficient catalysts for the transesterification of esters and canola oil showing their potential in biodiesel generation. Mechanistic investigations using ESI-MS revealed that the transesterification catalyzed by these complexes proceeds through two types of acyl intermediates.
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Affiliation(s)
- Abhishek Kumar Gupta
- School of Basic Sciences, Indian Institute of Technology Mandi , Kamand 175 005, Himachal Pradesh, India
| | - Abhimanew Dhir
- School of Basic Sciences, Indian Institute of Technology Mandi , Kamand 175 005, Himachal Pradesh, India
| | - Chullikkattil P Pradeep
- School of Basic Sciences, Indian Institute of Technology Mandi , Kamand 175 005, Himachal Pradesh, India
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33
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Jędrzkiewicz D, Ejfler J, John Ł, Szafert S. Zebra reaction or the recipe for the synthesis of heterodimeric zinc complexes. Dalton Trans 2016; 45:2829-38. [PMID: 26658768 DOI: 10.1039/c5dt03883a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of asymmetric heterodimeric zinc complexes have been synthesized in a direct reaction between conformationally flexible chiral/achiral homodimers. The cooperative activity of steric factors and coordination codes resulted in an intriguing chiral self-sorting process. Herein, we are reporting our recent exploration of the first example of such a type of reaction.
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Affiliation(s)
- D Jędrzkiewicz
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland.
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34
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Sabaté F, Gavara R, Giannicchi I, Bosque R, Cort AD, Rodríguez L. Ternary assemblies comprising metal–salophen complexes and 4,4′-bipyridine. NEW J CHEM 2016. [DOI: 10.1039/c5nj03210e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The formation of ternary species containing zinc or uranyl–salophen complexes has been explored and analyzed in this work.
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Affiliation(s)
- Ferran Sabaté
- Departament de Química Inorgànica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Raquel Gavara
- Departament de Química Inorgànica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Ilaria Giannicchi
- Dipartimento di Chimica and IMC-CNR Sezione Meccanismi di Reazione
- Università La Sapienza
- 00185 Roma
- Italy
| | - Ramon Bosque
- Departament de Química Inorgànica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Antonella Dalla Cort
- Dipartimento di Chimica and IMC-CNR Sezione Meccanismi di Reazione
- Università La Sapienza
- 00185 Roma
- Italy
| | - Laura Rodríguez
- Departament de Química Inorgànica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
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35
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Liu J, Cheng J, Ma X, Zhou X, Xiang H. Photophysical properties and pH sensing applications of luminescent salicylaldehyde derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-015-2343-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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36
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Sabaté F, Giannicchi I, Acón L, Dalla Cort A, Rodríguez L. Anion selectivity of Zn–salophen receptors: Influence of ligand substituents. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.04.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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37
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Cheng J, Li Y, Sun R, Liu J, Gou F, Zhou X, Xiang H, Liu J. Functionalized Salen ligands linking with non-conjugated bridges: unique and colorful aggregation-induced emission, mechanism, and applications. JOURNAL OF MATERIALS CHEMISTRY C 2015. [DOI: 10.1039/c5tc02555a] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A series of novel, simple, and useful Salen ligands (56 samples) linking with different non-conjugated alkyl bridges have a small π-conjugated system but exhibit strong red, green, and blue AIE.
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Affiliation(s)
| | - Yuanxi Li
- Laboratory of Stem Cell Biology
- State Key Laboratory of Biotherapy
- West China Hospital
- Sichuan University
- Chengdu
| | - Rui Sun
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Jiaoyan Liu
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Fei Gou
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Xiangge Zhou
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | | | - Jin Liu
- Laboratory of Stem Cell Biology
- State Key Laboratory of Biotherapy
- West China Hospital
- Sichuan University
- Chengdu
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38
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Perrier M, Busson M, Massasso G, Long J, Boudousq V, Pouget JP, Peyrottes S, Perigaud C, Porredon-Guarch C, de Lapuente J, Borras M, Larionova J, Guari Y. ²⁰¹Tl⁺-labelled Prussian blue nanoparticles as contrast agents for SPECT scintigraphy. NANOSCALE 2014; 6:13425-13429. [PMID: 25283238 DOI: 10.1039/c4nr03044c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Prussian blue (PB) and its analogues on the nanometric scale are exciting nano-objects that combine the advantages of molecular-based materials and nanochemistry. Herein, we demonstrate that ultra-small PB nanoparticles of 2-3 nm can be easily labelled with radioactive (201)Tl(+) to obtain new nanoprobes as radiotracers for 201-thallium-based imaging.
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Affiliation(s)
- M Perrier
- Institut Charles Gerhardt Montpellier (ICGM), UMR 5253, Chimie Moléculaire et Organisation du Solide, Université Montpellier 2, place Eugène Bataillon, Montpellier, France.
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39
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Cheng J, Ma X, Zhang Y, Liu J, Zhou X, Xiang H. Optical chemosensors based on transmetalation of salen-based Schiff base complexes. Inorg Chem 2014; 53:3210-9. [PMID: 24559169 DOI: 10.1021/ic5000815] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We report our systematic studies of novel, simple, selective, and sensitive optical (both colorimetric and fluorescent) chemosensors for detecting Al(3+) based on transmetalation reactions (metal displacement or exchange reactions) of a series of K(I), Ca(II), Zn(II), Cu(II), and Pt(II) complexes containing different ligands of salen-based Schiff bases. Both the chemical structure of the salen ligand and the identity of the central metal ion have a tremendous impact on the sensing performance, which is mainly determined by the stability constant of the complex. Moreover, the selectivities of the salen-complex-based chemosensors are much better than those of the corresponding free salen ligands because of the shielding function of the filled-in metal ion in the complex. Therefore, the present work potentially provides a new and simple way to design optical probes via complex-based transmetalation reactions.
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Affiliation(s)
- Jinghui Cheng
- College of Chemistry, Sichuan University , Chengdu 610041, China
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40
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Jana SK, Seth SK, Puschmann H, Hossain M, Dalai S. Synthesis and X-ray structure of a new zinc(ii) coordination polymer: interaction with DNA and double stranded RNA and elucidation of the molecular aspects of the binding to bovine serum albumin. RSC Adv 2014. [DOI: 10.1039/c4ra06588c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Synthesis and characterization of [Zn(4-Me-5-CHOIm)2(HCOO)](ClO4) complex and binding with nucleic acids and BSA has been explored by different biophysical techniques with the combination of isothermal titration calorimetry (ITC).
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Affiliation(s)
- Swapan K. Jana
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721 102, India
| | - Saikat K. Seth
- Department of Physics
- M. G. Mahavidyalaya
- Purba Medinipur, India
| | | | - Maidul Hossain
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721 102, India
| | - Sudipta Dalai
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721 102, India
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Mahato M, Dey D, Pal S, Saha S, Ghosh A, Harms K, Nayek HP. Syntheses, structures, optical properties and biological activities of bimetallic complexes. RSC Adv 2014. [DOI: 10.1039/c4ra11991f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Xie D, Jing J, Cai YB, Tang J, Chen JJ, Zhang JL. Construction of an orthogonal ZnSalen/Salophen library as a colour palette for one- and two-photon live cell imaging. Chem Sci 2014. [DOI: 10.1039/c3sc53299b] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Salen and tetrahydrosalen derivatives act as effective inhibitors of the tumor-associated carbonic anhydrase XII—A new scaffold for designing isoform-selective inhibitors. Bioorg Med Chem Lett 2013; 23:6759-63. [DOI: 10.1016/j.bmcl.2013.10.026] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Revised: 10/15/2013] [Accepted: 10/16/2013] [Indexed: 11/22/2022]
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