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Dey S, Hazari AS, Mobin SM, Lahiri GK. Diruthenium and triruthenium compounds of the potential redox active non-chelated η 1-N,η 1-N-benzothiadiazole bridge. Dalton Trans 2022; 51:8657-8670. [PMID: 35583102 DOI: 10.1039/d2dt00533f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
In the present study, a series of non-chelated BTD (2,1,3-benzothiadiazole)-bridged diruthenium(II) ([{(CH3CN)(acac)2RuII}2(μ-BTD)] 1, [{CH3CN(acac)2RuII}(μ-BTD){RuII(acac)2(η1-N-BTD)}] 2, [{(η1-N-BTD)(acac)2RuII}2(μ-BTD)] 3), and triruthenium ([{(acac)2RuII}3(μ-BTD)2(η1-N-BTD)2] 4) complexes with varying ratios of η1-N and μ-bis-η1-N,η1-N modes of BTD were studied. Complexes 1-4 (S = 0) were obtained via the one-pot reaction of electron-rich Ru(acac)2(CH3CN)2 and electron-deficient BTD in refluxing acetone. The relatively low Ru(II)/Ru(III) potential of 1-4 (0.08-0.44 V versus SCE) further facilitated the isolation of the corresponding mixed valent RuIIRuIII (S = 1/2) and RuIIRuIIRuIII (S = 1/2)/RuIIRuIIIRuIII (S = 1) forms [1]ClO4-[3]ClO4 and [4]ClO4/[4](ClO4)2, respectively. The single-crystal X-ray structures of the representative mixed valent [1]ClO4 and [3]ClO4 established (i) Ru⋯Ru distances of 6.227 Å and 6.256 Å (molecule A)/6.184 Å (molecule B), respectively, (ii) a significant variation of the N-S distance of BTD in [3]ClO4 as a function of its binding mode μ versus η1 and (iii) similar Ru-N (μ-BTD) distances in each case corresponding to a valence delocalised situation. The mixed valent diruthenium (1+-3+) and triruthenium (4+/42+) complexes exhibited metal-based anisotropic electron paramagnetic resonance (EPR) and moderately intense low-energy intervalence charge-transfer (IVCT) transitions in the near-infrared region of 1730-1890 nm. Analysis of the IVCT band using the Hush treatment revealed a valence delocalised class III mixed valent state with the electronic coupling Vab of ≈2640-2890 cm-1, as also corroborated by the Kc values of 105-108, solvent independency of the IVCT band and uniform spin distribution between the metal ions in the singly occupied state(s). Furthermore, the involvement of the BTD (η1 and μ)-based orbitals in the reduction processes was evident by its free radical EPR feature.
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Affiliation(s)
- Sanchaita Dey
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Arijit Singha Hazari
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Shaikh M Mobin
- Discipline of Chemistry, Indian Institute of Technology Indore, Simrol, Khandwa Road, Indore-453552, India
| | - Goutam Kumar Lahiri
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
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2
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Dey S, Singh B, Dasgupta S, Dutta A, Indra A, Lahiri GK. Ruthenium-Benzothiadiazole Building Block Derived Dynamic Heterometallic Ru-Ag Coordination Polymer and Its Enhanced Water-Splitting Feature. Inorg Chem 2021; 60:9607-9620. [PMID: 34121388 DOI: 10.1021/acs.inorgchem.1c00865] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This article deals with the development of the unprecedented redox-mediated heterometallic coordination polymer {[RuIII(acac)2(μ-bis-η1-N,η1-N-BTD)2AgI(ClO4)]ClO4}n (3) via the oxidation of the monomeric building block cis-[RuII(acac)2(η1-N-BTD)2] (1) by AgClO4 (BTD = exodentate 2,1,3-benzothiadiazole, acac = acetylacetonate). Monomeric cis-[RuII(acac)2(η1-N-BTD)2] (1) and [RuII(acac)2(η1-N-BTD)(CH3CN)] (2) were simultaneously obtained from the electron-deficient BTD heterocycle and the electron-rich metal precursor RuII(acac)2(CH3CN)2 in refluxing CH3CN. Molecular identities of 1-3 were authenticated by their single-crystal X-ray structures as well as by solution spectral features. These results also reflected the elusive trigonal-planar geometry of the Ag ion in Ru-Ag-derived polymeric 3. Ru(III) (S = 1/2)-derived 3 displayed metal-based anisotropic EPR with ⟨g⟩/Δg = 2.12/0.56 and paramagnetically shifted 1H NMR. Spectroelectrochemistry in combination with DFT/TD-DFT calculations of 1n and 2n (n = 1+, 0, 1-) determined a metal-based (RuII/RuIII) oxidation and BTD-based reduction (BTD/BTD•-). The drastic decrease in the emission intensity and quantum yield but insignificant change in the lifetime of 3 with respect to 1 could be addressed in terms of static quenching and/or a paramagnetism-induced phenomenon. A homogeneously dispersed dumbbell-shaped morphology and the particle diameter of 3 were established by microscopic (TEM-EDX/SEM) and DLS analysis, respectively. Moreover, the dynamic nature of polymeric 3 was highlighted by its degradation to the η1-N-BTD coordinated monomeric fragment 1, which could also be followed spectrophotometrically in polar protic EtOH. Interestingly, both monomeric 1 and polymeric 3 exhibited efficient electrocatalytic activity toward water oxidation processes (OER, HER) on immobilization on an FTO support, which also divulged the better intrinsic water oxidation activity of 3 in comparison to 1.
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Affiliation(s)
- Sanchaita Dey
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Baghendra Singh
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Souradip Dasgupta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Anindya Dutta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Arindam Indra
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Goutam Kumar Lahiri
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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Chakraborty G, Park IH, Medishetty R, Vittal JJ. Two-Dimensional Metal-Organic Framework Materials: Synthesis, Structures, Properties and Applications. Chem Rev 2021; 121:3751-3891. [PMID: 33630582 DOI: 10.1021/acs.chemrev.0c01049] [Citation(s) in RCA: 266] [Impact Index Per Article: 88.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Gouri Chakraborty
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - In-Hyeok Park
- Graduate School of Analytical Science and Technology (GRAST), Chungnam National University, Daejeon 34134, South Korea
| | | | - Jagadese J. Vittal
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
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Seguin AK, Wrighton-Araneda K, Cortés-Arriagada D, Cruz C, Venegas-Yazigi D, Paredes-García V. A new CuII-dinuclear paddlewheel complex. Structural and electronic properties. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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5
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Sukhikh T, Bashirov D, Shuvaev S, Komarov V, Kuratieva N, Konchenko S, Benassi E. Noncovalent interactions and photophysical properties of new Ag(I) complexes with 4-amino-2,1,3-benzothiadiazole. Polyhedron 2018. [DOI: 10.1016/j.poly.2017.11.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Lada ZG, Sanakis Y, Raptopoulou CP, Psycharis V, Perlepes SP, Mitrikas G. Probing the electronic structure of a copper(ii) complex by CW- and pulse-EPR spectroscopy. Dalton Trans 2017. [DOI: 10.1039/c7dt01785e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The electronic structure of a mononuclear octahedral copper(ii) complex has been studied using CW EPR spectroscopy and other advanced methods including Davies ENDOR and HYSCORE (1H and 13C) spectroscopy.
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Affiliation(s)
- Zoi G. Lada
- Foundation for Research and Technology-Hellas (FORTH)
- Institute of Chemical Engineering Sciences (ICE-HT)
- 26504 Patras
- Greece
- Department of Chemistry
| | - Yiannis Sanakis
- Institute of Nanoscience and Nanotechnology
- NCSR “Demokritos”
- 153 10 Aghia Paraskevi Attikis
- Greece
| | - Catherine P. Raptopoulou
- Institute of Nanoscience and Nanotechnology
- NCSR “Demokritos”
- 153 10 Aghia Paraskevi Attikis
- Greece
| | - Vassilis Psycharis
- Institute of Nanoscience and Nanotechnology
- NCSR “Demokritos”
- 153 10 Aghia Paraskevi Attikis
- Greece
| | - Spyros P. Perlepes
- Foundation for Research and Technology-Hellas (FORTH)
- Institute of Chemical Engineering Sciences (ICE-HT)
- 26504 Patras
- Greece
- Department of Chemistry
| | - George Mitrikas
- Institute of Nanoscience and Nanotechnology
- NCSR “Demokritos”
- 153 10 Aghia Paraskevi Attikis
- Greece
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Biet T, Martin K, Hankache J, Hellou N, Hauser A, Bürgi T, Vanthuyne N, Aharon T, Caricato M, Crassous J, Avarvari N. Triggering Emission with the Helical Turn in Thiadiazole-Helicenes. Chemistry 2016; 23:437-446. [PMID: 27763709 DOI: 10.1002/chem.201604471] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Indexed: 01/17/2023]
Abstract
Introduction of heterocycles into the helical skeleton of helicenes allows modulation of their redox, chiroptical, and photophysical properties. This paper describes the straightforward preparation and structural characterization by single-crystal X-ray diffraction of thiadiazole-[7]helicene, which was resolved into M and P enantiomers by chiral HPLC, together with its S-shaped double [4]helicene isomer, as well as the smaller congeners thiadiazole-[5]helicene and benzothiadiazole-anthracene. A copper(II) complex with two thiadiazole-[5]helicene ligands was structurally characterized, and it shows the presence of both M and P isomers coordinated to the metal center. The emission properties of the heterohelicenes are highly dependent on the helical turn, as the [7]- and [5]helicene are poorly emissive, whereas their isomers, that is, the S-shaped double [4]helicene and thiadiazole-benzanthracene, are luminescent, with quantum efficiencies of 5.4 and 6.5 %, respectively. DFT calculations suggest quenching of the luminescence of enantiopure [7]helicenes through an intersystem-crossing mechanism arising from the relaxed excited S1 state.
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Affiliation(s)
- Thomas Biet
- Université d'Angers, CNRS UMR 6200, Laboratoire MOLTECH-Anjou, 2 bd Lavoisier, 49045, Angers, France
| | - Kévin Martin
- Université d'Angers, CNRS UMR 6200, Laboratoire MOLTECH-Anjou, 2 bd Lavoisier, 49045, Angers, France
| | - Jihane Hankache
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, 1211, Geneva, Switzerland
| | - Nora Hellou
- Institut des Sciences Chimiques de Rennes, UMR 6226, CNRS - Université de Rennes 1, Campus de Beaulieu, 35042, Rennes Cedex, France
| | - Andreas Hauser
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, 1211, Geneva, Switzerland
| | - Thomas Bürgi
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, 1211, Geneva, Switzerland
| | - Nicolas Vanthuyne
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille , France
| | - Tal Aharon
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas, 66045, USA
| | - Marco Caricato
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas, 66045, USA
| | - Jeanne Crassous
- Institut des Sciences Chimiques de Rennes, UMR 6226, CNRS - Université de Rennes 1, Campus de Beaulieu, 35042, Rennes Cedex, France
| | - Narcis Avarvari
- Université d'Angers, CNRS UMR 6200, Laboratoire MOLTECH-Anjou, 2 bd Lavoisier, 49045, Angers, France
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Bashirov DA, Sukhikh TS, Kuratieva NV, Chulanova EA, Yushina IV, Gritsan NP, Konchenko SN, Zibarev AV. Novel applications of functionalized 2,1,3-benzothiadiazoles for coordination chemistry and crystal engineering. RSC Adv 2014. [DOI: 10.1039/c4ra03342f] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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9
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Niu DZ, Zheng LH, Gao F, Fu R, Wang M. Crystal structure of tetra(3-carboxyl-2,2,5,5-tetramethylpyrrolidin-1-oxyl) bis(dimethyl fumarate) bicopper(II) complex, C21H37CuN3O7. Z KRIST-NEW CRYST ST 2013. [DOI: 10.1524/ncrs.2013.0143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract C21H37CuN3O7, triclinic, P1̅ (no. 2), a = 10.9210(9) Å, b = 11.626(1) Å, c = 12.038(1) Å, α = 85.588(2)°, β = 72.209(2)°, γ = 64.942(2)°, V = 1315.9 Å3, Z = 2, Rgt(F) = 0.0468, wRref(F2) = 0.1340, T = 296 K.
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Affiliation(s)
- De-Zhong Niu
- 1College of Chemistry & Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, Jiangsu Province, P. R. China
| | - Li-Hua Zheng
- 2Henan Medical College of Staff and Workers, Zhengzhou 451191, Henan Province, P. R. China
| | - Fan Gao
- 1College of Chemistry & Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, Jiangsu Province, P. R. China
| | - Rong Fu
- 1College of Chemistry & Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, Jiangsu Province, P. R. China
| | - Min Wang
- 1College of Chemistry & Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, Jiangsu Province, P. R. China
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Neto BAD, Lapis AAM, da Silva Júnior EN, Dupont J. 2,1,3-Benzothiadiazole and Derivatives: Synthesis, Properties, Reactions, and Applications in Light Technology of Small Molecules. European J Org Chem 2012. [DOI: 10.1002/ejoc.201201161] [Citation(s) in RCA: 212] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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12
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Köberl M, Cokoja M, Herrmann WA, Kühn FE. From molecules to materials: molecular paddle-wheel synthons of macromolecules, cage compounds and metal-organic frameworks. Dalton Trans 2011; 40:6834-59. [PMID: 21416068 DOI: 10.1039/c0dt01722a] [Citation(s) in RCA: 127] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Metal-organic frameworks (MOF) are becoming a more and more important class of functional materials. Yet, very often, the synthesis of MOFs is not easy to control and requires a profound knowledge and experience in solid state chemistry. One of the most frequently used metal connectors is the so-called 'paddle-wheel' (PW) unit, which is a well-known molecular compound type in inorganic coordination chemistry. Depending on the ligands, the geometry of PWs strictly directs the assembly of ordered networks. This review focuses on the question, to what extent ordered network structures can be accessed by typical molecular syntheses in solution, starting from molecular PW complexes to ordered macromolecules, finite cage compounds and finally, three-dimensional superstructures.
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Affiliation(s)
- Mathias Köberl
- Molecular Catalysis, Catalysis Research Center, Technische Universität München, Lichtenbergstrasse 4, D-85747, Garching, Germany
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Zhang ZQ, Huang RD, Xu YQ, Yu LQ, Jiao ZW, Zhu QL, Hu CW. Three complexes based on ligands 1-hydroxybenzotriazole and 1,4-benzenedicarboxylic acid: Synthesis, structures and luminescence properties. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2009.09.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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14
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Milios CJ, Ioannou PV, Raptopoulou CP, Papaefstathiou GS. Crystal engineering with 2,1,3-benzoselenadiazole and mercury(II) chloride. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.05.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Structures and magnetic property studies of four copper(II) and nickel(II) supramolecular complexes derived from diphenic acid constructed by C–H⋯π and π–π interactions. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2009.06.023] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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16
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Zhang ZQ, Huang RD, Dong LJ, Xu YQ, Yu LQ, Jiao ZW, Hu CW. Synthesis, structures, luminescence/magnetic properties of complexes of the M/1-hydroxybenzotriazole, M=cobalt, nickel, silver, zinc and copper. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2009.01.044] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Stoumpos CC, Diamantopoulou E, Raptopoulou CP, Terzis A, Perlepes SP, Lalioti N. A two-dimensional manganese(II) coordination polymer containing 1-hydroxybenzotriazolate and acetate bridging ligands: Preparation, structural characterization and magnetic study. Inorganica Chim Acta 2008. [DOI: 10.1016/j.ica.2008.03.071] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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Youngme S, Cheansirisomboon A, Danvirutai C, Pakawatchai C, Chaichit N, Engkagul C, van Albada GA, Costa JS, Reedijk J. Three new polynuclear tetracarboxylato-bridged copper(II) complexes: Syntheses, X-ray structure and magnetic properties. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.02.023] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Youngme S, Cheansirisomboon A, Danvirutai C, Pakawatchai C, Chaichit N. Polynuclear paddle-wheel copper(II) propionate with di-2-pyridylamine or 1,10-phenanthroline: Preparation, characterization and X-ray structure. INORG CHEM COMMUN 2008. [DOI: 10.1016/j.inoche.2007.10.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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20
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Papatriantafyllopoulou C, Raptopoulou CP, Terzis A, Janssens JF, Manessi-Zoupa E, Perlepes SP, Plakatouras JC. Assembly of a helical zinc(II) chain and a two-dimensional cadmium(II) coordination polymer using picolinate and sulfate anions as bridging ligands. Polyhedron 2007. [DOI: 10.1016/j.poly.2007.05.022] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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21
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Litos C, Parsons S, Karaliota A. Synthesis of two dicopper(II) complexes of l-carnitine: The first structural determination of a metal complex containing l-carnitine. Polyhedron 2007. [DOI: 10.1016/j.poly.2006.11.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Novel families of phthalocyanine-like macrocycles—Porphyrazines with annulated strongly electron-withdrawing 1,2,5-thia/selenodiazole rings. Coord Chem Rev 2006. [DOI: 10.1016/j.ccr.2006.02.009] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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23
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Messimeri A, Nastopoulos V, Terzis A, Raptopoulou CP, Papadimitriou C, Perlepes SP. The succinamate(−1) ligand in 4f-metal chemistry: First example of amide coordination in the double-chain 1D coordination polymer catena-aquatris(succinamato(−1))erbium(III). INORG CHEM COMMUN 2005. [DOI: 10.1016/j.inoche.2005.03.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kozlevčar B, Leban I, Petrič M, Petriček S, Roubeau O, Reedijk J, Šegedin P. Phase transitions and antiferromagnetism in copper(II) hexanoates: a new tetranuclear type of copper carboxylate paddle-wheel association. Inorganica Chim Acta 2004. [DOI: 10.1016/j.ica.2004.06.012] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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25
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Durot S, Policar C, Pelosi G, Bisceglie F, Mallah T, Mahy JP. Structural and Magnetic Properties of Carboxylato-Bridged Manganese(II) Complexes Involving Tetradentate Ligands: Discrete Complex and 1D Polymers. Dependence of J on the Nature of the Carboxylato Bridge. Inorg Chem 2003; 42:8072-80. [PMID: 14632528 DOI: 10.1021/ic026130l] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The crystal structure of an inorganic linear polymer consisting of Mn(II) and an N-centered tripodal ligand N,N-bis(2-(6-methyl)pyridylmethyl)glycinate is presented (1, C(16)H(20)N(3)O(3)F(6)P(1)Mn(1), a = 9.993(2) A, b = 13.285(3) A, c = 16.040(3) A, orthorhombic, Pnam, Z = 4). The polymeric structure is ensured by carboxylato ligands connecting two Mn(II) in a rather rare syn-anti geometry. The magnetic properties of this infinite chain have been investigated, together with the magnetic properties of a dimeric Mn(II) compound (3) from a closely related ligand [N,N-bis[(1-methylimidazol-2-yl)-methyl)glycinate] involving an unusual bis(monatomic-carboxylato) bridge. The inorganic polymer 1 shows a pseudo-2D magnetic structure, with a major interaction pathway along the chain (J/k = -0.172 +/- 0.005 K) and an interchain minor one (zJ'/k = -0.006 +/- 0.004 K). These properties are reminiscent of those from a closely related previously reported inorganic Mn(II) polymer (2 obtained from manganese(II) and N,N-(2-pyridylmethyl)((1-methylimidazol-2-yl)methyl)glycinate). The dimer 3 shows a small antiferromagnetic coupling of J/k = -0.693 +/- 0.016 K. To address the influence of the carboxylato bridging mode on the magnetic properties, these complexes are compared to a series of compounds involving carboxylato bridges of several geometries between Mn(II) ions. Carboxylato bridges induce usually antiferromagnetic coupling, with the magnitude of the interaction (/J/) increasing with the number of bridges. The J value is dependent on the bridging mode. The syn-syn bridge is an efficient pathway, even by comparison with the monatomic [(mu-eta(1)-carboxylato)] bridge.
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Affiliation(s)
- Stéphanie Durot
- Laboratoire de Chimie Bio-organique et Bio-inorganique, UMR8124, Bâtiment 420, Université Paris XI, F-91405 Orsay Cedex, France
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First use of the succinamate(−1) ligand in 3d-metal chemistry: dinuclear copper(II) complexes with the rare [Cu2(η1:μ2-O2CR)2(η1:η1:μ2-O2CR)]+, [Cu2(η1:η1:μ2-O2CR)2]2+ and [Cu2(μ-OH)(μ-OH2)(η1:η1:μ2-O2CR)]2+ cores, and a novel one-dimensional polymerization of two different dimers (R=CH2CH2CONH2). INORG CHEM COMMUN 2003. [DOI: 10.1016/j.inoche.2003.08.017] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Hydrogen bonded networks based on lanthanide(III) complexes of N,N′-dimethylurea (DMU): preparation, characterisation, and crystal structures of [Nd(DMU)6][NdCl6] and [Nd(NO3)3(DMU)3]. Polyhedron 2003. [DOI: 10.1016/s0277-5387(03)00009-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Papaefstathiou G, Vicente R, Raptopoulou C, Terzis A, Escuer A, Perlepes S. A One-Dimensional Manganese(II) Coordination Polymer Derived from Zerovalent Manganese and 1-Hydroxybenzotriazole − Synthesis, Characterization, Crystal Structure and Magnetic Properties. Eur J Inorg Chem 2002. [DOI: 10.1002/1099-0682(200209)2002:9<2488::aid-ejic2488>3.0.co;2-m] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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29
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Synthesis and physical studies of lanthanide(III) complexes of N,N-bis(2-hydroxyethyl)glycinate (bicinate, bicH2−): molecular and crystal structure of [Gd(O2CMe)(bicH2)(phen)(H2O)](ClO4).phen.3H2O (phen=1,10-phenanthroline). Inorganica Chim Acta 2002. [DOI: 10.1016/s0020-1693(02)00898-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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