1
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Tomczyk MD, Kuźnik N, Walczak K. Cyclen-based artificial nucleases: Three decades of development (1989–2022). Part a – Hydrolysis of phosphate esters. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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2
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Huang Y, Huynh TT, Sun L, Hu CH, Wang YC, Rogers BE, Mirica LM. Neutral Ligands as Potential 64Cu Chelators for Positron Emission Tomography Imaging Applications in Alzheimer's Disease. Inorg Chem 2022; 61:4778-4787. [PMID: 35245023 DOI: 10.1021/acs.inorgchem.2c00621] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Positron emission tomography (PET), which uses positron-emitting radionuclides to visualize and measure processes in the human body, is a useful noninvasive diagnostic tool for Alzheimer's disease (AD). The development of longer-lived radiolabeled compounds is essential for further expansion of the use of PET imaging in healthcare, and diagnostic agents employing longer-lived radionuclides such as 64Cu (t1/2 = 12.7 h, β+ = 17%, β- = 39%, electron capture EC = 43%, and Emax = 0.656 MeV) can accomplish this task. One limitation of 64Cu PET agents for neuroimaging applications is their limited lipophilicity due to the presence of several anionic groups needed to ensure strong Cu chelation. Herein, we evaluate a series of neutral chelators containing the 1,4,7-triazacyclononane or 2,11-diaza[3.3](2,6)pyridinophane macrocycles that have pyridyl-containing arms incorporating Aβ-peptide-interacting fragments. The crystal structures of the corresponding Cu complexes confirm that the pyridyl N atoms are involved in binding to Cu. Radiolabeling and autoradiography studies show that the compounds efficiently chelate 64Cu, and the resulting complexes exhibit specific binding to the amyloid plaques in the AD mouse brain sections versus wild-type controls.
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Affiliation(s)
- Yiran Huang
- Department of Chemistry, University of Illinois at Urbana-Champaign (UIUC), 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Truc T Huynh
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri 63108, United States.,Department of Chemistry, Washington University, St. Louis, Missouri 63130, United States
| | - Liang Sun
- Department of Chemistry, University of Illinois at Urbana-Champaign (UIUC), 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Chi-Herng Hu
- Department of Chemistry, University of Illinois at Urbana-Champaign (UIUC), 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Yung-Ching Wang
- Department of Chemistry, University of Illinois at Urbana-Champaign (UIUC), 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Buck E Rogers
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri 63108, United States
| | - Liviu M Mirica
- Department of Chemistry, University of Illinois at Urbana-Champaign (UIUC), 600 South Mathews Avenue, Urbana, Illinois 61801, United States.,Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, Missouri 63110, United States
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3
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Joshi P, Ali SR, Rishu, Bhardwaj VK. Fluorescence modulation of naphthalene containing salicyl hydrazide-based receptor through aggregation-induced emission enhancement approach: Dual detection of lanthanum and cyanide ions in semi-aqueous medium. LUMINESCENCE 2021; 36:986-994. [PMID: 33590665 DOI: 10.1002/bio.4025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/31/2021] [Accepted: 02/02/2021] [Indexed: 11/08/2022]
Abstract
The sensing activity of naphthalene containing salicyl hydrazide-based fluorescence receptor has been improved through aggregation-induced enhanced emission mechanism approach in semi-aqueous medium. The receptor has been found to be selective toward La3+ with approximately 70-fold fluorescence enhancement due to a combined effect of keto-enol tautomerism inhibition and chelation enhanced fluorescence with a detection limit of 3.91 × 10-6 M. In addition, the receptor is also able to sense CN- with a detection limit of 3.55 × 10-6 M via deprotonation effect, justifying its multiple analyte sensing behaviour. Hence, the current analytical methodology improves the sensing activity of the probe and also provides a greener alternative for La3+ and CN- detection.
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Affiliation(s)
- Pooja Joshi
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, India.,Department of Chemistry, D.S.B. Campus, Kumaun University, Nainital, India
| | - Shah Raj Ali
- Department of Chemistry, D.S.B. Campus, Kumaun University, Nainital, India
| | - Rishu
- Department of Chemistry, Mehr Chand Mahajan DAV College for Women, Chandigarh, India
| | - Vimal K Bhardwaj
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, India.,Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar, India
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4
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Bartoli F, Conti L, Romano GM, Massai L, Paoli P, Rossi P, Pietraperzia G, Gellini C, Bencini A. Protonation of cyclen-based chelating agents containing fluorescent moieties. NEW J CHEM 2021. [DOI: 10.1039/d1nj03539h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The fluorescence emission properties of 1,4,7,10-tetraazacyclododecane-based receptors with appended heteroaromatic fluorophores are tuned by photoinduced electron and proton transfer processes.
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Affiliation(s)
- Francesco Bartoli
- Department of Chemistry “Ugo Schiff”, Università di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
| | - Luca Conti
- Department of Chemistry “Ugo Schiff”, Università di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
| | - Giammarco Maria Romano
- Department of Chemistry “Ugo Schiff”, Università di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
| | - Lara Massai
- Department of Chemistry “Ugo Schiff”, Università di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
| | - Paola Paoli
- Department of Industrial Engineering, Università di Firenze, Via S. Marta 3, Florence, I-50139, Italy
| | - Patrizia Rossi
- Department of Industrial Engineering, Università di Firenze, Via S. Marta 3, Florence, I-50139, Italy
| | - Giangaetano Pietraperzia
- Department of Chemistry “Ugo Schiff”, Università di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
- European Laboratory for Non Linear Spectroscopy (LENS), Via Nello Carrara 1, I-50019 Sesto Fiorentino (FI), Italy
| | - Cristina Gellini
- Department of Chemistry “Ugo Schiff”, Università di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
| | - Andrea Bencini
- Department of Chemistry “Ugo Schiff”, Università di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
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5
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Garau A, Aragoni MC, Arca M, Bencini A, Blake AJ, Caltagirone C, Giorgi C, Lippolis V, Scorciapino MA. Aza- and Mixed Thia/Aza-Macrocyclic Receptors with Quinoline-Bearing Pendant Arms for Optical Discrimination of Zinc(II) or Cadmium(II) Ions. Chempluschem 2020; 85:1789-1799. [PMID: 32808469 DOI: 10.1002/cplu.202000444] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/23/2020] [Indexed: 12/21/2022]
Abstract
The synthesis and coordination properties of two fluorescent chemosensors, featuring [9]aneN3 (1,4,7-triazacyclononane; L1) and [12]aneNS3 (1-aza-4,7,10-trithiacyclododecane; L2) as receptor units, and a quinoline pendant arm with an amide group as a functional group spacer are described. The optical responses of L1 and L2 in the presence of several metal ions were analysed in MeCN/H2 O (1 : 4 v/v) solutions. A selective chelation enhancement of fluorescence (CHEF) effect was observed in the presence of Zn2+ in the case of L1, and in the presence of Cd2+ in the case of L2, following the formation of a 1 : 1 and a 1 : 2 metal/ligand complex, respectively, which was also confirmed by potentiometric measurements. 1 H and 13 C NMR measurements in CD3 CN/CDCl3 in combination with molecular mechanics calculations show that for both complexes of L1 and L2 with Zn2+ and Cd2+ , respectively, the coordination of the carbonyl group from the pendant arm could be the origin of the observed optical selectivity.
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Affiliation(s)
- Alessandra Garau
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, I-09042, Monserrato (CA), Italy
| | - M Carla Aragoni
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, I-09042, Monserrato (CA), Italy
| | - Massimiliano Arca
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, I-09042, Monserrato (CA), Italy
| | - Andrea Bencini
- Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, Via della Lastruccia 3, I-50019 Sesto Fiorentino, Firenze, Italy
| | - Alexander J Blake
- School of Chemistry, University of Nottingham, University Park, NG7 2RD, Nottingham, United Kingdom
| | - Claudia Caltagirone
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, I-09042, Monserrato (CA), Italy
| | - Claudia Giorgi
- Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, Via della Lastruccia 3, I-50019 Sesto Fiorentino, Firenze, Italy
| | - Vito Lippolis
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, I-09042, Monserrato (CA), Italy
| | - Mariano Andrea Scorciapino
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, I-09042, Monserrato (CA), Italy
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7
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Garau A, Bencini A, Blake AJ, Caltagirone C, Conti L, Isaia F, Lippolis V, Montis R, Mariani P, Scorciapino MA. [9]aneN3-based fluorescent receptors for metal ion sensing, featuring urea and amide functional groups. Dalton Trans 2019; 48:4949-4960. [DOI: 10.1039/c9dt00288j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The sensing and recognition properties of three new [9]aneN3-based chemosensors have been studied both in solution and in the solid state.
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Affiliation(s)
- Alessandra Garau
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- Monserrato
- Italy
| | - Andrea Bencini
- Dipartimento di Chimica ‘Ugo Shiff’
- Università degli Studi di Firenze
- 50019 Sesto Fiorentino
- Italy
| | - Alexander J. Blake
- School of Chemistry
- The University of Nottingham
- University Park
- Nottingham
- UK
| | - Claudia Caltagirone
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- Monserrato
- Italy
| | - Luca Conti
- Dipartimento di Chimica ‘Ugo Shiff’
- Università degli Studi di Firenze
- 50019 Sesto Fiorentino
- Italy
| | - Francesco Isaia
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- Monserrato
- Italy
| | - Vito Lippolis
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- Monserrato
- Italy
| | - Riccardo Montis
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- Monserrato
- Italy
| | - Palma Mariani
- Dipartimento di Chimica ‘Ugo Shiff’
- Università degli Studi di Firenze
- 50019 Sesto Fiorentino
- Italy
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8
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Brown A, Bunchuay T, Crane CG, White NG, Thompson AL, Beer PD. A Bis-Triazacyclononane Tris-Pyridyl N 9 -Azacryptand "Beer Can" Receptor for Complexation of Alkali Metal and Lead(II) Cations. Chemistry 2018; 24:10434-10442. [PMID: 29668116 DOI: 10.1002/chem.201801300] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Indexed: 11/08/2022]
Abstract
A new bis-triazacyclononane tris-pyridyl N9 -azacryptand ligand is prepared via a convenient one-pot [2+3] condensation reaction between triazacyclononane and 2,6-bis(bromomethyl) pyridine in the presence of M2 CO3 (M=Li, Na, K). The proton, lithium, sodium, potassium and lead(II) complexes of the ligand are characterised in the solid state. Preliminary solution-phase competition experiments indicate that the cryptand ligand preferentially binds lead(II) in the presence of sodium, calcium, potassium and zinc cations in methanol solution.
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Affiliation(s)
- Asha Brown
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK
| | - Thanthapatra Bunchuay
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK
| | - Christopher G Crane
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK
| | - Nicholas G White
- Research School of Chemistry, The Australian National University, Canberra, ACT, Australia
| | - Amber L Thompson
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK
| | - Paul D Beer
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK
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9
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Aragoni MC, Arca M, Bencini A, Caltagirone C, Conti L, Garau A, Valtancoli B, Isaia F, Lippolis V, Palomba F, Prodi L, Zaccheroni N. Zn2+/Cd2+ optical discrimination by fluorescent acridine-based bis-macrocylic receptors. Supramol Chem 2017. [DOI: 10.1080/10610278.2017.1387262] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- M. Carla Aragoni
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Monserrato, Italy
| | - Massimiliano Arca
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Monserrato, Italy
| | - Andrea Bencini
- Dipartimento di Chimica “Ugo Schiff”, Università degli Studi di Firenze, Firenze, Italy
| | - Claudia Caltagirone
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Monserrato, Italy
| | - Luca Conti
- Dipartimento di Chimica “Ugo Schiff”, Università degli Studi di Firenze, Firenze, Italy
| | - Alessandra Garau
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Monserrato, Italy
| | - Barbara Valtancoli
- Dipartimento di Chimica “Ugo Schiff”, Università degli Studi di Firenze, Firenze, Italy
| | - Francesco Isaia
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Monserrato, Italy
| | - Vito Lippolis
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Monserrato, Italy
| | - Francesco Palomba
- Dipartimento di Chimica “G. Ciamician” Università degli Studi di Bologna, Bologna, Italy
| | - Luca Prodi
- Dipartimento di Chimica “G. Ciamician” Università degli Studi di Bologna, Bologna, Italy
| | - Nelsi Zaccheroni
- Dipartimento di Chimica “G. Ciamician” Università degli Studi di Bologna, Bologna, Italy
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10
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Bartoli F, Bencini A, Garau A, Giorgi C, Lippolis V, Lunghi A, Totti F, Valtancoli B. Di- and Triphosphate Recognition and Sensing with Mono- and Dinuclear Fluorescent Zinc(II) Complexes: Clues for the Design of Selective Chemosensors for Anions in Aqueous Media. Chemistry 2016; 22:14890-14901. [PMID: 27573342 DOI: 10.1002/chem.201602079] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Indexed: 11/09/2022]
Abstract
The synthesis of a new ligand (L1) containing two 1,4,7-triazacyclononane ([9]aneN3 ) moieties linked by a 4,5-dimethylenacridine unit is reported. The binding and fluorescence sensing properties toward Cu2+ , Zn2+ , Cd2+ , and Pb2+ of L1 and receptor L2, composed of two [9]aneN3 macrocycles bridged by a 6,6''-dimethylen-2,2':6',2''-terpyridine unit, have been studied by coupling potentiometric, UV/Vis absorption, and emission measurements in aqueous media. Both receptors can selectively detect Zn2+ thanks to fluorescence emission enhancement upon metal binding. The analysis of the binding and sensing properties of the Zn2+ complexes toward inorganic anions revealed that the dinuclear Zn2+ complex of L1 selectively binds and senses the triphosphate anion (TP), whereas the mononuclear Zn2+ complex of L2 displays selective recognition of diphosphate (DP). Binding of TP or DP induces emission quenching of the Zn2+ complexes with L1 and L2, respectively. These results are exploited to discuss the role played by pH, number of coordinated metal cations, and binding ability of the bridging units in metal and/or anion coordination and sensing.
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Affiliation(s)
- Francesco Bartoli
- Dipartimento di Chimica 'Ugo Schiff', Università degli Studi di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Firenze, Italy
| | - Andrea Bencini
- Dipartimento di Chimica 'Ugo Schiff', Università degli Studi di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Firenze, Italy.
| | - Alessandra Garau
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, 09042, Monserrato, Italy
| | - Claudia Giorgi
- Dipartimento di Chimica 'Ugo Schiff', Università degli Studi di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Firenze, Italy
| | - Vito Lippolis
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, 09042, Monserrato, Italy.
| | - Alessandro Lunghi
- Dipartimento di Chimica 'Ugo Schiff', Università degli Studi di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Firenze, Italy
| | - Federico Totti
- Dipartimento di Chimica 'Ugo Schiff', Università degli Studi di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Firenze, Italy
| | - Barbara Valtancoli
- Dipartimento di Chimica 'Ugo Schiff', Università degli Studi di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Firenze, Italy
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11
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Coghlan CJ, Campi EM, Forsyth CM, Jackson RW, Hearn MTW. Bi-Nuclear Metal Complexes of 2,6-Bis(1,4,7-triazacyclonon-1-yl-methylene)pyridine with Zinc(II), Copper(II), and Nickel(II). Aust J Chem 2015. [DOI: 10.1071/ch14618] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The coordination chemistry of 2,6-bis(1,4,7-triazacyclonon-1-ylmethyl)pyridine (Lpyx, 1) has been investigated and shown to yield bi-nuclear metal complexes in the presence of zinc(ii), copper(ii), or nickel(ii) ions. The reaction of (Lpyx)·7HCl (2) with Zn(NO3)2 gave the monomeric [Zn2(μ-Cl)2(Lpyx)(H2O)](ClO4)2 (3) in which the ligand encapsulates a Zn2(μ-Cl)2 moiety. Similar treatment of 2 with Cu(NO3)2 gave a bi-nuclear complex cation which exists as a 1 : 1 co-crystal {[Cu(Cl)(Lpyx)Cu(μ-Cl)(Cl)](BF4)(H2O)}2 and {[Cu(Cl)(Lpyx)Cu(μ-Cl)(H2O)](BF4)2(H2O)}2 (4) with two discrete CuII centres bridged by the Lpyx ligand and dimerised through an unsymmetrical Cu2(μ-Cl)2 interaction. Similarly, reaction of 2 with Ni(NO3)2 also gave a dimeric complex {[Ni(Cl)(μ-Cl)(Lpyx)Ni(NO3)(H2O)](PF6)}2 (5) containing two discrete NiII centres with dimerisation occurring through a symmetrical Ni2(μ-Cl)2 interaction. In all cases, the Lpyx ligand binding is unsymmetrical between the two metal centres being tridentate to one and tetradentate to the other through an additional coordination of the pyridyl linker.
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12
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Sanyal R, Dash SK, Das S, Chattopadhyay S, Roy S, Das D. Catecholase activity, DNA cleavage and cytotoxicity of six Zn(II) complexes synthesized from designed Mannich ligands: higher reactivity of mononuclear over dinuclear. J Biol Inorg Chem 2014; 19:1099-111. [DOI: 10.1007/s00775-014-1148-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Accepted: 05/17/2014] [Indexed: 10/25/2022]
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13
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14
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Anbu S, Kamalraj S, Varghese B, Muthumary J, Kandaswamy M. A Series of Oxyimine-Based Macrocyclic Dinuclear Zinc(II) Complexes Enhances Phosphate Ester Hydrolysis, DNA Binding, DNA Hydrolysis, and Lactate Dehydrogenase Inhibition and Induces Apoptosis. Inorg Chem 2012; 51:5580-92. [DOI: 10.1021/ic202451e] [Citation(s) in RCA: 128] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Sellamuthu Anbu
- Department of Inorganic Chemistry, University of Madras, School of Chemical Sciences,
Guindy Maraimalai Campus, Chennai 600 025, India
| | - Subban Kamalraj
- Centre for Advanced Study in
Botany, University of Madras, Guindy Maraimalai
Campus, Chennai 600 025, India
| | - Babu Varghese
- Sophisticated Analytical Instruments
Facility, Indian Institute of Technology, Chennai 600 036, India
| | - Johnpaul Muthumary
- Centre for Advanced Study in
Botany, University of Madras, Guindy Maraimalai
Campus, Chennai 600 025, India
| | - Muthusamy Kandaswamy
- Department of Inorganic Chemistry, University of Madras, School of Chemical Sciences,
Guindy Maraimalai Campus, Chennai 600 025, India
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15
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Bazzicalupi C, Bencini A, Giorgi C, Valtancoli B, Lippolis V, Perra A. Exploring the Binding Ability of Polyammonium Hosts for Anionic Substrates: Selective Size-Dependent Recognition of Different Phosphate Anions by Bis-macrocyclic Receptors. Inorg Chem 2011; 50:7202-16. [DOI: 10.1021/ic2007815] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Bhaumik C, Das S, Maity D, Baitalik S. A terpyridyl-imidazole (tpy-HImzPh3) based bifunctional receptor for multichannel detection of Fe2+ and F− ions. Dalton Trans 2011; 40:11795-808. [DOI: 10.1039/c1dt10965k] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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17
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Ferreirós-Martínez R, Esteban-Gómez D, Platas-Iglesias C, de Blas A, Rodríguez-Blas T. Selective chelation of Cd(II) and Pb(II) versus Ca(II) and Zn(II) by using octadentate ligands containing pyridinecarboxylate and pyridyl pendants. Inorg Chem 2010; 48:10976-87. [PMID: 19877597 DOI: 10.1021/ic900838j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Herein we report the coordination properties toward Cd(II), Pb(II), Ca(II), and Zn(II) of a new octadentate ligand (py-H(2)bcpe) based on a ethane-1,2-diamine unit containing two picolinate and two pyridyl pendants, which is structurally derived from the previous reported ligand bcpe. Potentiometric studies have been carried out to determine the protonation constants of the ligand and the stability constants of the complexes with these cations. The introduction of the pyridyl pendants in bcpe provokes a very important increase of the logK(ML) values obtained for the Pb(II) and Cd(II) complexes, while this effect is less important in the case of the Zn(II) analogue. As a result, py-bcpe shows a certain selectivity for Cd(II) and Pb(II) over Zn(II) while keeping good Pb(II)/Ca(II) and Cd(II)/Ca(II) selectivities, and the new receptor py-bcpe can be considered as a new structural framework for the design of novel Cd(II) and Pb(II) extracting agents. Likewise, the stabilities of the Cd(II) and Pb(II) complexes are higher than those of the corresponding EDTA analogues. The X-ray crystal structure of [Zn(py-bcpe)] shows hexadentate binding of the ligand to the metal ion, the coordination polyhedron being best described as a severely distorted octahedron. However, the X-ray crystal structure of the Pb(II) analogue shows octadentate binding of the ligand to the metal ion. A detailed investigation of the structure in aqueous solution of the complexes by using nuclear magnetic resonance (NMR) techniques and density functional theory (DFT) calculations (B3LYP) shows that while in the Zn(II) complex the metal ion is six-coordinated, in the Pb(II) and Ca(II) analogues the metal ions are eight-coordinated. For the Cd(II) complex, our results suggest that in solution the complex exists as a mixture of seven- and eight-coordinated species. DFT calculations performed both in the gas phase and in aqueous solution have been also used to investigate the role of the Pb(II) lone pair in the structure of the [Pb(py-bcpe)] complex.
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Affiliation(s)
- Raquel Ferreirós-Martínez
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
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Mameli M, Aragoni MC, Arca M, Atzori M, Bencini A, Bazzicalupi C, Blake AJ, Caltagirone C, Devillanova FA, Garau A, Hursthouse MB, Isaia F, Lippolis V, Valtancoli B. Synthesis and Coordination Properties of Quinoline Pendant Arm Derivatives of [9]aneN3 and [9]aneN2S as Fluorescent Zinc Sensors. Inorg Chem 2009; 48:9236-49. [DOI: 10.1021/ic901012w] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Marta Mameli
- Dipartimento di Chimica Inorganica ed Analitica, S.S. 554 Bivio per Sestu, Università degli Studi di Cagliari, 09042 Monserrato (CA), Italy
| | - M. Carla Aragoni
- Dipartimento di Chimica Inorganica ed Analitica, S.S. 554 Bivio per Sestu, Università degli Studi di Cagliari, 09042 Monserrato (CA), Italy
| | - Massimiliano Arca
- Dipartimento di Chimica Inorganica ed Analitica, S.S. 554 Bivio per Sestu, Università degli Studi di Cagliari, 09042 Monserrato (CA), Italy
| | - Marta Atzori
- Dipartimento di Chimica Inorganica ed Analitica, S.S. 554 Bivio per Sestu, Università degli Studi di Cagliari, 09042 Monserrato (CA), Italy
| | - Andrea Bencini
- Dipartimento di Chimica, Via della Lastruccia 3, Università degli Studi di Firenze, 50019 Sesto Fiorentino (FI), Italy
| | - Carla Bazzicalupi
- Dipartimento di Chimica, Via della Lastruccia 3, Università degli Studi di Firenze, 50019 Sesto Fiorentino (FI), Italy
| | - Alexander J. Blake
- School of Chemistry, The University of Nottingham, University Park, Nottingham NG7 2RD, U.K
| | - Claudia Caltagirone
- Dipartimento di Chimica Inorganica ed Analitica, S.S. 554 Bivio per Sestu, Università degli Studi di Cagliari, 09042 Monserrato (CA), Italy
| | - Francesco A. Devillanova
- Dipartimento di Chimica Inorganica ed Analitica, S.S. 554 Bivio per Sestu, Università degli Studi di Cagliari, 09042 Monserrato (CA), Italy
| | - Alessandra Garau
- Dipartimento di Chimica Inorganica ed Analitica, S.S. 554 Bivio per Sestu, Università degli Studi di Cagliari, 09042 Monserrato (CA), Italy
| | - Michael B. Hursthouse
- School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, U.K
| | - Francesco Isaia
- Dipartimento di Chimica Inorganica ed Analitica, S.S. 554 Bivio per Sestu, Università degli Studi di Cagliari, 09042 Monserrato (CA), Italy
| | - Vito Lippolis
- Dipartimento di Chimica Inorganica ed Analitica, S.S. 554 Bivio per Sestu, Università degli Studi di Cagliari, 09042 Monserrato (CA), Italy
| | - Barbara Valtancoli
- Dipartimento di Chimica, Via della Lastruccia 3, Università degli Studi di Firenze, 50019 Sesto Fiorentino (FI), Italy
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Sheng X, Guo X, Lu XM, Lu GY, Shao Y, Liu F, Xu Q. DNA Binding, Cleavage, and Cytotoxic Activity of the Preorganized Dinuclear Zinc(II) Complex of Triazacyclononane Derivatives. Bioconjug Chem 2008; 19:490-8. [PMID: 18179160 DOI: 10.1021/bc700322w] [Citation(s) in RCA: 108] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Xin Sheng
- Department of Chemistry, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, People's Republic of China, and State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China
| | - Xun Guo
- Department of Chemistry, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, People's Republic of China, and State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China
| | - Xiao-Min Lu
- Department of Chemistry, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, People's Republic of China, and State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China
| | - Guo-Yuan Lu
- Department of Chemistry, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, People's Republic of China, and State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China
| | - Ying Shao
- Department of Chemistry, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, People's Republic of China, and State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China
| | - Fang Liu
- Department of Chemistry, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, People's Republic of China, and State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China
| | - Qiang Xu
- Department of Chemistry, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, People's Republic of China, and State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China
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Gale PA, García-Garrido SE, Garric J. Anion receptors based on organic frameworks: highlights from 2005 and 2006. Chem Soc Rev 2008; 37:151-90. [DOI: 10.1039/b715825d] [Citation(s) in RCA: 715] [Impact Index Per Article: 44.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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