1
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De Silva DNT, Dais TN, Jameson GB, Davies CG, Jameson GNL, Plieger PG. [Fe(µ 2-OH) 6] 3- Linked Fe 3O Triads: Mössbauer Evidence for Trigonal µ 3-O 2- or µ 3-OH - Groups in Bridged versus Unbridged Complexes. Molecules 2024; 29:3218. [PMID: 38999170 PMCID: PMC11243536 DOI: 10.3390/molecules29133218] [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: 06/17/2024] [Revised: 07/02/2024] [Accepted: 07/04/2024] [Indexed: 07/14/2024] Open
Abstract
The syntheses, coordination chemistry, and Mössbauer spectroscopy of hepta-iron(III) complexes using derivatised salicylaldoxime ligands from two categories; namely, 'single-headed' (H2L) and 'double-headed' (H4L) salicylaldoximes are described. All compounds presented here share a [Fe3-µ3-O] core in which the iron(III) ions are µ3-hydroxo-bridged in the complex C1 and µ3-oxo-bridged in C2 and C3. Each compound consists of 2 × [Fe3-µ3-O] triads that are linked via a central [Fe(µ2-OH)6]3- ion. In addition to the charge balance and microanalytical evidence, Mössbauer measurements support the fact that the triads in C1 are µ3-OH bridged and are µ3-O bridged in C2 and C3.
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Affiliation(s)
- D. Nirosha T. De Silva
- School of Natural Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Tyson N. Dais
- School of Natural Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Geoffrey B. Jameson
- School of Natural Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Casey G. Davies
- Department of Chemistry, University of Otago, Dunedin 9016, New Zealand; (C.G.D.); (G.N.L.J.)
| | - Guy N. L. Jameson
- Department of Chemistry, University of Otago, Dunedin 9016, New Zealand; (C.G.D.); (G.N.L.J.)
- Bio21 Molecular Sciences and Biotechnology Institute, The University of Melbourne, Parkville 3052, VIC, Australia
| | - Paul G. Plieger
- School of Natural Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
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2
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Zhou F, Gu M, Chi Y. Azolate‐based osmium(II) complexes with luminescence spanning visible and near infrared region. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Fan Zhou
- City University of Hong Kong Materials Science and Engineering HONG KONG
| | - Muhua Gu
- City University of Hong Kong Materials Sciences and Engineering HONG KONG
| | - Yun Chi
- City University of Hong Kong Materials Sciences and Engineering 83 Tat Chee Road, Kowloon Kowloon Tong HONG KONG
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3
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Sethi S, Jena S, Das PK, Behera N. Synthetic approach and structural diversities of pyridylpyrazole derived late transition metal complexes. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.04.112] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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4
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Narwane M, Chang YL, Ching WM, Tsai ML, Hsu SC. Investigation on the coordination behaviors of tris(2-pyridyl)pyrazolyl borates iron(II) complexes. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.118966] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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5
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Woodhouse SS, De Silva DNT, Jameson GB, Cutler DJ, Sanz S, Brechin EK, Davies CG, Jameson GNL, Plieger PG. New salicylaldoximato-borate ligands resulting from anion hydrolysis and their respective copper and iron complexes. Dalton Trans 2019; 48:11872-11881. [PMID: 31309211 DOI: 10.1039/c9dt01968e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Anion hydrolysis reactions between salicylaldoximato ligands (L'-L''') and copper and iron BF4- metal salts, have resulted in the formation of new salicylaldoximato borate containing transition metal complexes: [Fe2(L' + 2H)2](BF4)2(MeOH)4 (C1), [Fe3(L'' + 4H)(OH)2(Py)2](BF4)2(H2O)2(Py)2 (C2), and [Cu2(L''' + H)2Cl2] (C3). Each of the complexes have been structurally characterised, revealing the indirect role boron plays in the formation of these complexes. For complexes C1 and C2, Mössbauer spectroscopy confirmed the existence of Fe(iii) oxidation states. SQUID magnetometry measurements were performed on complexes C2 and C3, revealing the presence of two competing exchange pathways between the three Fe(iii) centres in C2, with antiferromagnetic exchange dominating. For C3 weak antiferromagnetic exchange dominated between the two Cu(ii) centres.
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Affiliation(s)
- Sidney S Woodhouse
- School of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand.
| | - D Nirosha T De Silva
- School of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand.
| | - Geoffrey B Jameson
- School of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand.
| | - Daniel J Cutler
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK
| | - Sergio Sanz
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK
| | - Euan K Brechin
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK
| | - Casey G Davies
- Department of Chemistry, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Guy N L Jameson
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria 3052, Australia
| | - Paul G Plieger
- School of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand.
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Yang FL, Liang BB, Zhang JH, Wu WH, Zheng SQ, Mao YY, Chen JQ, Cao JX, Zhu GZ. Synthesis, structures and magnetic properties of three copper(II) complexes of 2-(1H-pyrazol-3-yl) pyridine. TRANSIT METAL CHEM 2018. [DOI: 10.1007/s11243-018-0202-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Yang FL, Zhu GZ, Liang BB, Shi YH, Li XL. Assembly of dinuclear copper(II) complexes based on a tridentate pyrazol–pyridine ligand: Crystal structures and magnetic properties. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.02.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Molecular tectonics of mixed-ligand metal-organic frameworks: Positional isomeric effect, and structural diversification. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2015.12.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Cai H, Xiao YL, Guo Y, Li JG. Controllable assembly of a three-dimensional metal-organic supramolecular framework displaying hydrogen-bonding and π-π stacking interactions. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2014; 70:722-5. [PMID: 24992120 DOI: 10.1107/s2053229614014247] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Accepted: 06/18/2014] [Indexed: 11/10/2022]
Abstract
The complex poly[[aqua(μ2-phthalato-κ(2)O(1):O(2)){μ3-2-[3-(pyridin-2-yl)-1H-pyrazol-1-yl]acetato-κ(4)N(2),N(3):O:O'}{μ2-2-[3-(pyridin-2-yl)-1H-pyrazol-1-yl]acetato-κ(3)N(2),N(3):O}dizinc(II)] dihydrate], {[Zn2(C10H8N3O2)2(C8H4O4)(H2O)]·2H2O}n, has been prepared by solvothermal reaction of 2-[3-(pyridin-2-yl)-1H-pyrazol-1-yl]acetonitrile (PPAN) with zinc(II). Under hydrothermal conditions, PPAN is hydrolyzed to 2-[3-(pyridin-2-yl)-1H-pyrazol-1-yl]acetate (PPAA(-)). The structure determination reveals that the complex is a one-dimensional double chain containing cationic [Zn4(PPAA)4](4+) structural units, which are further extended by bridging phthalate ligands. The one-dimensional chains are extended into a three-dimensional supramolecular architecture via hydrogen-bonding and π-π stacking interactions.
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Affiliation(s)
- Hua Cai
- College of Science, Civil Aviation University of China, Tianjin 300300, People's Republic of China
| | - Yan-Ling Xiao
- College of Science, Civil Aviation University of China, Tianjin 300300, People's Republic of China
| | - Ying Guo
- College of Science, Civil Aviation University of China, Tianjin 300300, People's Republic of China
| | - Jian-Gang Li
- College of Science, Civil Aviation University of China, Tianjin 300300, People's Republic of China
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Arroyo M, Gómez-Iglesias P, Antón N, García-Rodríguez R, Alegria ECBA, Pombeiro AJL, Miguel D, Villafañe F. Homo- and heteropolymetallic 3-(2-pyridyl)pyrazolate manganese and rhenium complexes. Dalton Trans 2014; 43:4009-20. [DOI: 10.1039/c3dt53439a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Heteropolymetallic complexes with pyridylpyrazolates bridging Mn and Na or K are tetrametallic and contain bridging pyridylpyrazolates with an unprecedented coordination mode, whereas the Mn/Li complex is bimetallic.
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Affiliation(s)
- Marta Arroyo
- GIR MIOMeT-IU Cinquima-Química Inorgánica
- Facultad de Ciencias
- Campus Miguel Delibes
- Universidad de Valladolid
- 47011 Valladolid, Spain
| | - Patricia Gómez-Iglesias
- GIR MIOMeT-IU Cinquima-Química Inorgánica
- Facultad de Ciencias
- Campus Miguel Delibes
- Universidad de Valladolid
- 47011 Valladolid, Spain
| | - Noelia Antón
- GIR MIOMeT-IU Cinquima-Química Inorgánica
- Facultad de Ciencias
- Campus Miguel Delibes
- Universidad de Valladolid
- 47011 Valladolid, Spain
| | - Raúl García-Rodríguez
- GIR MIOMeT-IU Cinquima-Química Inorgánica
- Facultad de Ciencias
- Campus Miguel Delibes
- Universidad de Valladolid
- 47011 Valladolid, Spain
| | - Elisabete C. B. A. Alegria
- Centro de Química Estrutural
- Complexo I
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa, Portugal
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural
- Complexo I
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa, Portugal
| | - Daniel Miguel
- GIR MIOMeT-IU Cinquima-Química Inorgánica
- Facultad de Ciencias
- Campus Miguel Delibes
- Universidad de Valladolid
- 47011 Valladolid, Spain
| | - Fernando Villafañe
- GIR MIOMeT-IU Cinquima-Química Inorgánica
- Facultad de Ciencias
- Campus Miguel Delibes
- Universidad de Valladolid
- 47011 Valladolid, Spain
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11
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Two novel coordination polymers with Zn(II): Synthesis, structural characterization, thermal analysis and fluorescent properties. INORG CHEM COMMUN 2013. [DOI: 10.1016/j.inoche.2013.09.055] [Citation(s) in RCA: 6] [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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12
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Hydrothermal syntheses and characterization of a series of mixed-ligand luminescent CdII frameworks with novel 2-(3-(pyridin-2-yl)-1H-pyrazol-1-yl) acetate ligand and benzenedicarboxylate isomers. INORG CHEM COMMUN 2013. [DOI: 10.1016/j.inoche.2013.05.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Selective syntheses, structures and magnetic properties of Fe(III) complexes of different nuclearities. Polyhedron 2013. [DOI: 10.1016/j.poly.2012.04.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Cai H, Guo Y, Li JG. Controllable assembly of a three-dimensional metal–organic supramolecular framework including π–π stacking interactions. Acta Crystallogr C 2013; 69:8-10. [DOI: 10.1107/s0108270112048937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Accepted: 11/28/2012] [Indexed: 11/10/2022] Open
Abstract
The mixed-ligand metal–organic complex poly[(μ3-phthalato)[μ2-3-(pyridin-2-yl)-1H-pyrazol-1-ido]dicopper(II)], [Cu2(C8H4O4)(C8H6N3)2]n, has been synthesized by the reaction of copper(II) acetate with 2-(1H-pyrazol-3-yl)pyridine (HL) and phthalic acid. The binuclear chelating–bridgingLunits are further linked by bridging phthalate ligands into a two-dimensional network parallel to the (010) plane. The two-dimensional networks are extended into a three-dimensional supramolecular architectureviaπ–π stacking interactions.
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15
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Ishikawa R, Nishio K, Fuyuhiro A, Yoneda K, Sakamoto H, Kitagawa S, Kawata S. Water adsorption–desorption property of stable porous supramolecular assembly composed of discrete tetranuclear iron(III) complex using π⋯π interactions. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.02.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Arroyo M, Miguel D, Villafañe F, Alegria ECB, Pombeiro AJL. Molybdenum- and tungsten(ii) monometallic 3-(2-pyridyl)pyrazole and bimetallic 3-(2-pyridyl)pyrazolate complexes. Dalton Trans 2012; 41:7017-25. [DOI: 10.1039/c2dt12388f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Kuwata S, Ikariya T. β‐Protic Pyrazole and N‐Heterocyclic Carbene Complexes: Synthesis, Properties, and Metal–Ligand Cooperative Bifunctional Catalysis. Chemistry 2011; 17:3542-56. [DOI: 10.1002/chem.201003296] [Citation(s) in RCA: 120] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shigeki Kuwata
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, Okayama, Meguro‐ku, Tokyo 152‐8552 (Japan), Fax: (+81) 3‐5734‐2637
| | - Takao Ikariya
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, Okayama, Meguro‐ku, Tokyo 152‐8552 (Japan), Fax: (+81) 3‐5734‐2637
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Viciano‐Chumillas M, Tanase S, de Jongh LJ, Reedijk J. Coordination Versatility of Pyrazole‐Based Ligands towards High‐Nuclearity Transition‐Metal and Rare‐Earth Clusters. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000412] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Marta Viciano‐Chumillas
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P. O. Box 9502, 2300 RA Leiden, The Netherlands, Fax: +31‐71‐527‐4671
- Leiden Institute of Physics, Kamerlingh Onnes Laboratory,Leiden University, P. O. Box 9504, 2300 RA Leiden, The Netherlands, Fax: +31‐71‐527‐5404
| | - Stefania Tanase
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P. O. Box 9502, 2300 RA Leiden, The Netherlands, Fax: +31‐71‐527‐4671
- Current address: Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - L. Jos de Jongh
- Leiden Institute of Physics, Kamerlingh Onnes Laboratory,Leiden University, P. O. Box 9504, 2300 RA Leiden, The Netherlands, Fax: +31‐71‐527‐5404
| | - Jan Reedijk
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P. O. Box 9502, 2300 RA Leiden, The Netherlands, Fax: +31‐71‐527‐4671
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Amarante TR, Gonçalves IS, Almeida Paz FA. 2-(1H-Pyrazol-3-yl)pyridinium chloride monohydrate. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o1962-o1963. [PMID: 21583640 PMCID: PMC2977379 DOI: 10.1107/s1600536809028402] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2009] [Accepted: 07/17/2009] [Indexed: 05/30/2023]
Abstract
The title organic salt, C(8)H(8)N(3) (+)·Cl(-)·H(2)O, exhibits a rich hydrogen-bonding network involving all constituent species. The water mol-ecules are engaged in strong O-H⋯Cl inter-actions with the chloride anions, two neighboring protonated 2-(1H-pyrazol-3-yl)pyridinium species inter-act via N-H⋯N bonds with two pyrazole rings. Further, a short and highly directional C-H⋯O inter-action is observed connecting the pyridinium ring to the water mol-ecule of crystallization. Weak C-H⋯Cl and N-H⋯Cl inter-actions contribute to the stabilization of the crystal structure.
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Affiliation(s)
- Tatiana R. Amarante
- Department of Chemistry, University of Aveiro, CICECO, 3810-193 Aveiro, Portugal
| | - Isabel S. Gonçalves
- Department of Chemistry, University of Aveiro, CICECO, 3810-193 Aveiro, Portugal
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Abstract
This Perspective summarises the chemistry of the pyrazole ring, and reviews the metal coordination modes adopted by 1H-pyrazoles and their anions. Pyrazolide anions are probably the most versatile ligands in coordination chemistry, with 20 different terminal or bridging coordination modes having been identified so far. Metal cluster compounds supported by pyrazolido ligation are surveyed, concentrating on those reported during the past ten years. Highlights include the wide structural diversity in apparently simple main group pyrazolides; luminescence and charge-transfer complexes in coinage metal pyrazolide clusters; the use of robust metal pyrazolide clusters to construct liquid crystals, supramolecular materials and metal-organic frameworks; and supramolecular complexes formed by pyrazolide-supported metallacrowns.
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A new μ-oxo di-iron complex with suitable features to mimic metallohydrolase activity: X-ray molecular structure, aqua solution behavior and nuclease activity of the complex [Fe(HPClNOL)(SO4)]2-μ-oxo. INORG CHEM COMMUN 2008. [DOI: 10.1016/j.inoche.2008.02.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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22
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Gass IA, Milios CJ, Collins A, White FJ, Budd L, Parsons S, Murrie M, Perlepes SP, Brechin EK. Polymetallic clusters of iron(III) with derivatised salicylaldoximes. Dalton Trans 2008:2043-53. [PMID: 18382782 DOI: 10.1039/b717534e] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis and magnetic properties of the compounds [HNEt(3)][Fe(2)(OMe)(Ph-sao)(2) (Ph-saoH)(2)].5MeOH (1.5MeOH), [Fe(3)O(Et-sao)(O(2)CPh)(5)(MeOH)(2)].3MeOH (2.3MeOH), [Fe(4)(Me-sao)(4)(Me-saoH)(4)] (3), [HNEt(3)](2)[Fe(6)O(2)(Me-sao)(4)(SO(4))(2)(OMe)(4)(MeOH)(2)] (4), [Fe(8)O(3)(Me-sao)(3)(tea)(teaH)(3)(O(2)CMe)(3)] (5), [Fe(8)O(3)(Et-sao)(3)(tea)(teaH)(3)(O(2)CMe)(3)] (6), and [Fe(8)O(3)(Ph-sao)(3)(tea)(teaH)(3)(O(2)CMe)(3)] (7) are reported (Me-saoH(2) is 2'-hydroxyacetophenone oxime, Et-saoH(2) is 2'-hydroxypropiophenone oxime and Ph-saoH(2) is 2-hydroxybenzophenone oxime). 1-7 are the first Fe(III) compounds synthesised using the derivatised salicylaldoxime ligands, R-saoH(2). 1 is prepared by treatment of Fe(2)(SO(4))(3).6H(2)O with Ph-saoH(2) in the presence of NEt(3) in MeOH; 2 prepared by treatment of Fe(ClO(4))(2).6H(2)O with Et-saoH(2) and NaO(2)CPh in the presence of NEt(4)OH in MeOH; 3 prepared by treatment of Fe(ClO(4))(2).6H(2)O with Me-saoH(2) and NaO(2)CCMe(3) in the presence of NEt(4)OH in MeOH; and 4 prepared by treatment of Fe(2)(SO(4))(3).6H(2)O with Me-saoH(2) in the presence of NEt(3) in MeOH. 4 is a rare example of a polynuclear iron complex containing a coordinated SO(4)(2-) ion. Compounds 5-7 are prepared by treatment of Fe(O(2)CMe)(2) with Me-saoH(2) (5), Et-saoH(2) (6), Ph-saoH(2) (7) in the presence of H(3)tea (triethanolamine) in MeOH, and represent the largest nuclearity Fe(III) clusters containing salicyladoxime-based ligands, joining a surprisingly small family of characterised octanuclear Fe complexes. Variable temperature magnetic susceptibilty measurements of 1, 3 and 5-7 reveal all five complexes possess S = 0 spin ground states; 2 possesses an S = 1/2 spin ground state, while 4 has an S = 4 +/- 1 spin ground state.
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Affiliation(s)
- Ian A Gass
- School of Chemistry, The University of Edinburgh, West Mains Road, Edinburgh, UK EH9 3JJ
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Majumder A, Pilet G, Salah El Fallah M, Ribas J, Mitra S. Isolation of a singly oxo-bridged Fe(III) dinuclear complex: Synthesis, crystal structure, spectroscopic and magnetic studies. Inorganica Chim Acta 2007. [DOI: 10.1016/j.ica.2006.11.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Wang X, Liu G, Lin H, Bi Y. Hydrothermal synthesis, crystal structure and characterization of a new 1-D supramolecular ladder based on a binuclear CdII complex [Cd2L4(3,5-DNBA)2](H2O) with L as a bridging ligand (L=3-(2-pyridyl)pyrazole; 3,5-DNBA=3,5-dinitrobenzoate). J COORD CHEM 2007. [DOI: 10.1080/00958970600873539] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Xiuli Wang
- a Faculty of Chemistry and Chemical Engineering , Bohai University , Jinzhou 121000, P.R. China
| | - Guocheng Liu
- a Faculty of Chemistry and Chemical Engineering , Bohai University , Jinzhou 121000, P.R. China
| | - Hongyan Lin
- a Faculty of Chemistry and Chemical Engineering , Bohai University , Jinzhou 121000, P.R. China
| | - Yanfeng Bi
- a Faculty of Chemistry and Chemical Engineering , Bohai University , Jinzhou 121000, P.R. China
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Hsu FC, Tung YL, Chi Y, Hsu CC, Cheng YM, Ho ML, Chou PT, Peng SM, Carty AJ. En Route to the Formation of High-Efficiency, Osmium(II)-Based Phosphorescent Materials. Inorg Chem 2006; 45:10188-96. [PMID: 17140226 DOI: 10.1021/ic061301y] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Triosmium cluster complexes [Os3(CO)8(fppz)2] (2a) and [Os3(CO)8(fptz)2] (2b) bearing two 2-pyridyl azolate ligands were synthesized in an attempt to establish the reaction mechanism that gives rise to the blue-emitting phosphorescent complexes [Os(CO)2(fppz)2] (1a) and [Os(CO)2(fptz)2] (1b) [(fppz)H = 3-(trifluoromethyl)-5-(2-pyridyl)pyrazole; (fptz)H = 3-(trifluoromethyl)-5-(2-pyridyl)triazole]. X-ray structural analysis of 2b showed an open triangular metal framework incorporating multisite-coordinated 2-pyridyltriazolate ligands. Treatment of 2 with the respective 2-pyridylazolate ligand led to the formation of blue-emitting complex 1b, confirming their intermediacy, while the reaction of 2b with phosphine ligand PPh2Me afforded two hitherto novel hydride complexes 3 and 4, for which the reversible interconversion was clearly established at higher temperatures (> 180 degrees C). The single-crystal X-ray diffraction analyses of 3 and 4 confirmed their monometallic and isomeric nature, together with the coordination of two phosphine ligands located in the trans-disposition and one CO and one hydride located opposite to the pyridyl triazolate chelate. Subtle differences in photophysical properties were examined for isomers 3 and 4 on the basis of steady state absorption and emission, the relaxation dynamics, and temperature-dependent luminescent studies. The results, in combination with time-dependent density function theory (TDDFT) calculations, provide fundamental insights into the future design and preparation of highly efficient phosphorescent emitters.
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Affiliation(s)
- Fang-Chi Hsu
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan
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A new one-dimensional CdII complex, [Cd(μ2-L)2]n (HL=3-(2-pyridyl)pyrazole) with planar [Cd(μ2-L)]2 unit: synthesis, crystal structure and emission property. J Mol Struct 2006. [DOI: 10.1016/j.molstruc.2005.12.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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27
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Mishra H, Mukherjee R. Half-sandwich η6-benzene Ru(II) complexes of pyridylpyrazole and pyridylimidazole ligands: Synthesis, spectra, and structure. J Organomet Chem 2006. [DOI: 10.1016/j.jorganchem.2006.04.037] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Mukherjee J, Mukherjee R. Reaction with dioxygen of a Cu(I) complex of 1-benzyl-[3-(2'-pyridyl)]pyrazole triggers ethyl acetate hydrolysis: acetato-/pyrazolato-, dihydroxo- and diacetato-bridged Cu(II) complexes. Dalton Trans 2006:1611-21. [PMID: 16547535 DOI: 10.1039/b512086a] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A copper(I) compound [(L2)Cu(MeCN)2][ClO4] (1) containing a new bidentate N-donor ligand L2, 1-benzyl-[3-(2'-pyridyl)]pyrazole, derived from the condensation of HL1 [HL1 = 3-(2-pyridyl)pyrazole] and benzyl chloride, has been synthesized. Structural analysis reveals that in the copper(I) centre is coordinated by a pyridine and a pyrazole nitrogen from L2 and two MeCN molecules, providing a distorted tetrahedral geometry. Reaction of with dioxygen in N,N'-dimethylformamide (dmf) at 25 degrees C and subsequent workup with MeCO2Et afforded an acetato-/pyrazolato-bridged polymeric copper(II) compound [(mu-L1)Cu(mu-O2CMe)]n (2). Notably, the deprotonated form of HL(1) and MeCO2- have originated from debenzylation of L2 and hydrolysis of MeCO2Et, respectively. The structural analysis of reveals a near-planar {Cu2(mu-L1)2}2+ core unit in which two adjacent Cu(II) ions are bridged by the deprotonated N,N-bidentate pyridylpyrazole units of two L1 and each such {Cu2(mu-L1)2}2+ unit is bridged by MeCO2- in a monodentate bridging mode [Cu...Cu separations (A): 3.9232(4) pyrazolate bridge; 3.3418(4) acetate bridge], providing a polymeric network. Careful oxygenation of in MeCN led to the isolation of a dihydroxo-bridged dicopper(II) compound [{(L2)Cu(mu-OH)(OClO3)}2] (3). Interestingly, complex brings about hydrolysis of MeCO2Et under mild conditions (dmf, ca. 60 degrees C), generating a bis-mu-1,3-acetato-bridged dicopper(II) complex, [{(L2)Cu(dmf)(mu-O2CMe)}2][ClO4]2.dmf.0.5MeCO2H (4). Compounds and have {Cu2(mu-OH)2}2+ [Cu...Cu separation of 2.8474(9) A] and {Cu2(mu-O2CMe)2}2+ cores [Cu...Cu separation: 3.0988(26) and 3.0792(29) A (two independent molecules in the asymmetric unit)] in which each Cu(II) centre is terminally coordinated by L2. A rationale has been provided for the observed debenzylation of L2 and hydrolysis of MeCO(2)Et. The intramolecular magnetic coupling between the Cu(II) (S = 1/2) ions was found to be ferromagnetic (2J = 82 cm(-1)) in the case of , but antiferromagnetic for (2J = -158 cm(-1)) and (2J = -96 cm(-1)). Absorption and EPR spectroscopic properties of the copper(II) compounds have also been investigated.
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Affiliation(s)
- Jhumpa Mukherjee
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India
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Hu TL, Li JR, Liu CS, Shi XS, Zhou JN, Bu XH, Ribas J. Syntheses, Crystal Structures, and Magneto−Structural Correlations of Novel CuII Complexes Containing a Planar [Cu(μ-L1)]2 (HL1 = 3-(2-Pyridyl)pyrazole) Unit: From Dinuclear to Tetranuclear and Then to One-Dimensional Compounds. Inorg Chem 2005; 45:162-73. [PMID: 16390052 DOI: 10.1021/ic051488d] [Citation(s) in RCA: 127] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Seven new Cu(II) complexes based on a binuclear planar unit [Cu(mu-L(1))](2), [[Cu(mu-L(1))(NO(3))(H(2)O)](2) (1), [Cu(mu-L(1))(HL(1))(ClO(4))](2) (2), [Cu(4)(mu-L(1))(6)(NO(3))(2)] (3), [Cu(4)(mu-L(1))(6)(L(1))(2)] (4), [Cu(4)(mu-L(1))(6)(mu-L(2))](n) (5), [Cu(4)(mu-L(1))(6)(mu-L(3))](n) (6), [[Cu(4)(mu-L(1))(4)(mu-L(4))(2)](H(2)O)(3)](n) (7) (HL(1) = 3-(2-pyridyl)pyrazole, L(2) = 1,8-naphthalenedicarboxylate, L(3) = terephthalate, L(4) = 2,6-pyridinedicarboxylate)}, have been synthesized and characterized by elemental analysis, IR, and X-ray diffraction. In 1 and 2, the Cu(II) centers are linked by deprotonated pyrazolyl groups to form dinuclear structures. 3 and 4 have similar gridlike tetranuclear structures in which two additional deprotonated L(1) ligands bridge two [Cu(mu-L(1))](2) units perpendicularly. 5 and 6 consist of similar one-dimensional (1-D) chains in which gridlike tetranuclear copper(II) units similar to that of 3 are further linked by L(2) or L(3) ligands, respectively. And, in 7, L(4) ligands link [Cu(mu-L(1))](2) binuclear units to form a tetranuclear gridlike structure in chelating/bridging mode and simultaneously bridge the tetranuclear units to form a 1-D chain. The magnetic properties of all complexes were studied by variable-temperature magnetic susceptibility and magnetization measurements. The obtained parameters of J range from -33.1 to -211 cm(-1), indicating very strong antiferromagnetic coupling between Cu(II) ions. The main factor that affects the |J| parameter is the geometry of the Cu(N(2))(2)Cu entity. From the magnetic point of view, 1 and 2 feature "pure" dinuclear, 3 and 5 tetranuclear, and 4, 6, and 7 pseudodinuclear moieties.
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Affiliation(s)
- Tong-Liang Hu
- Department of Chemistry, Nankai University, Tianjin, PR China
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Synthesis, Structure and Property of Oxo-Bridged Binuclear Iron(III) Complex [Fe(phen)(H2O)3]2O?2SO4. Struct Chem 2005. [DOI: 10.1007/s11224-005-2829-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Martínez AP, Fabra MJ, García MP, Lahoz FJ, Oro LA, Teat SJ. Mononuclear rhodium and iridium compounds with pyridyl-pyrazole ligands. Inorganica Chim Acta 2005. [DOI: 10.1016/j.ica.2004.11.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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32
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Singh S, Mishra V, Mukherjee J, Seethalekshmi N, Mukherjee R. Synthesis and properties of [MII(L6)2][ClO4]2(M = Fe, Co and Ni): structures of Co and Ni complexes and spin-state transition by Fe complex (L6= 2-[3-(2′-pyridyl)pyrazol-1-ylmethyl]pyridine). Dalton Trans 2003. [DOI: 10.1039/b305574d] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Pons J, Chadghan A, Alvarez-Larena A, Piniella JF, Ros J. Complexes of Cu(II), Co(II) and Ni(II) with pyrazole-derived ligands. Crystal structure of {bis[3-phenyl-5-(2-pyridyl)pyrazolato, κN1:κN2]copper(II)}. Inorganica Chim Acta 2001. [DOI: 10.1016/s0020-1693(01)00566-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Cu(II) complexes with pyrazole-derived ligands. Crystal structure of {[diaquanitrato(3-phenyl-5-(2-pyridyl)pyrazole)]copper(II)} nitrate. Polyhedron 2001. [DOI: 10.1016/s0277-5387(01)00858-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Bell ZR, Motson GR, Jeffery JC, McCleverty JA, Ward MD. Syntheses and structures of lanthanide(III) complexes with some bis(pyrazolyl)borate and tris(pyrazolyl)borate podand ligands. Polyhedron 2001. [DOI: 10.1016/s0277-5387(01)00795-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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36
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Hagback PH, Steel PJ. Synthesis and crystal structure of 2,3-bis[3-(2-pyridyl)pyrazol-1-yl]hydroquinone dihydrate at 158 K. Z KRIST-CRYST MATER 2001. [DOI: 10.1524/zkri.216.1.60.18993] [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
2,3-Bis[3-(2-pyridyl)pyrazol-1-yl]hydroquinone dihydrate crystallises in the space group C2/c with half a molecule of the title compound and a water molecule in the asymmetric unit. A two-fold rotation axis relates the two 3-(2-pyridyl)pyrazol-1-yl substituents. The pyridine and pyrazole rings are approximately coplanar while the pyrazole ring is orthogonal to the benzene ring. Each water molecule is hydrogen bonded to the hydroxyl group and also to nitrogen atoms of two adjacent molecules; these hydrogen bonding interactions give rise to a two-dimensional network architecture.
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Bis(3-(2-pyridyl)pyrazol-1-ylmethyl)benzenes: doubly-chelating binucleating ligands and encapsulation of a linear trisilver(I) moiety. INORG CHEM COMMUN 2000. [DOI: 10.1016/s1387-7003(00)00121-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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38
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Couchman SM, Jeffery JC, Ward MD. Synthesis and coordination chemistry of the tetradentate ligands 6,6′-bis(3-pyrazolyl)-2,2′-bipyridine and 6,6′-bis(2-hydroxyphenyl)-2,2′-bipyridine: intramolecular hydrogen-bonding in complexes of Cu(II), and a dinuclear double helicate with Ag(I). Polyhedron 1999. [DOI: 10.1016/s0277-5387(99)00154-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Satake A, Nakata T. Novel η3-Allylpalladium−Pyridinylpyrazole Complex: Synthesis, Reactivity, and Catalytic Activity for Cyclopropanation of Ketene Silyl Acetal with Allylic Acetates. J Am Chem Soc 1998. [DOI: 10.1021/ja982269c] [Citation(s) in RCA: 97] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Akiharu Satake
- Contribution from The Institute of Physical & Chemical Research (RIKEN), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Tadashi Nakata
- Contribution from The Institute of Physical & Chemical Research (RIKEN), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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Dao Feng Xiang, Xiang Shi Tan, Si Wei Zhang, Yu Han, Kai Bei Yu, Wen Xia Tang. Synthesis, crystal structure and properties of [Fe2O(bipy)4C12](ClO4)2 · 0.25CH3CN · 0.25CH30H · 0.25H2O, a μ-Oxo diiron(III) complex. Polyhedron 1998. [DOI: 10.1016/s0277-5387(97)00427-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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