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Stevens MA, Lim LF, Pham LN, Cox N, Coote ML, Colebatch AL. A one-pot reduction route to bimetallic manganese 1,8-naphthyridine complexes. Dalton Trans 2024; 53:1284-1294. [PMID: 38112500 DOI: 10.1039/d3dt03709f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Reaction of the dinucleating ligand 2,7-bis(6-methyl-2-pyridyl)-1,8-naphthyridine (MeL) with the MnI and MnII precursors MnBr(CO)5 and MnCl2 resulted in the formation of the monometallic complexes [MnBr(CO)3(MeL)] (1) and [MnCl2(MeL)] (3). In both cases, formation of bimetallic manganese complexes could be achieved by reduction with KC8, yielding the carbonyl-bridged complex [Mn2(CO)6(MeL)] (2) and the helicate complex [Mn2(MeL)2] (4), respectively. EPR results demonstrate that 4 represents a novel, weakly antiferromagnetically coupled homovalent dimer (J = -0.85 cm-1). The two formally Mn0 ions are both high spin (S = 3/2) and exhibit a zero-field splitting of ≈1 cm-1, suggesting reduction of the complex is substantially ligand centered, and may be better described as a MnII complex coupled to two open shell singlet ligands [MnII2(MeL2-)2]. X-ray crystallography, UV-Vis spectroscopy and DFT analysis support this finding.
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Affiliation(s)
- Michael A Stevens
- Research School of Chemistry, Australian National University, Canberra, ACT, 2601, Australia.
| | - Li Feng Lim
- Research School of Chemistry, Australian National University, Canberra, ACT, 2601, Australia.
| | - Le Nhan Pham
- Institute for Nanoscale Science & Technology, Flinders University, Adelaide, South Australia, 5042, Australia.
| | - Nicholas Cox
- Research School of Chemistry, Australian National University, Canberra, ACT, 2601, Australia.
| | - Michelle L Coote
- Institute for Nanoscale Science & Technology, Flinders University, Adelaide, South Australia, 5042, Australia.
| | - Annie L Colebatch
- Research School of Chemistry, Australian National University, Canberra, ACT, 2601, Australia.
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2
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Lozovan V, Kravtsov VC, Coropceanu EB, Siminel AV, Kulikova OV, Costriucova NV, Fonari MS. Water-sulfate anion interplay in the evolution of solid state architectures and emission properties of Zn and Cd coordination networks with four azine ligands. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2020.121312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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3
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Dhanalakshmi T, Loganathan R, Suresh E, Stoeckli-Evans H, Palaniandavar M. Interaction of copper(II) complexes with bis(p-nitrophenyl)phosphate: Structural and spectral studies. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.02.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Louka FR, Spell ML, Grebowicz J, Albering JH, Mautner FA, Massoud SS. Coordination chemistry of 1,4-bis[bis(2-pyridylmethyl)aminomethyl]benzene with copper(II). J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.03.066] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Bera JK, Sadhukhan N, Majumdar M. 1,8‐Naphthyridine Revisited: Applications in Dimetal Chemistry. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900312] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jitendra K. Bera
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India, Fax: +91‐512‐259‐7436
| | - Nabanita Sadhukhan
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India, Fax: +91‐512‐259‐7436
| | - Moumita Majumdar
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India, Fax: +91‐512‐259‐7436
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Gahan LR, Smith SJ, Neves A, Schenk G. Phosphate Ester Hydrolysis: Metal Complexes As Purple Acid Phosphatase and Phosphotriesterase Analogues. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900231] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Lawrence R. Gahan
- School of Chemistry and Molecular BioSciences, The University of Queensland, 4072 Brisbane, Australia
| | - Sarah J. Smith
- School of Chemistry and Molecular BioSciences, The University of Queensland, 4072 Brisbane, Australia
| | - Ademir Neves
- Laboratorio de Bioinorgânica e Cristalografica, Departamento de Química, Universidade Federal de Santa Catarina, 88040‐900, Florianópolis, SC, Brazil
| | - Gerhard Schenk
- School of Chemistry and Molecular BioSciences, The University of Queensland, 4072 Brisbane, Australia
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Synthesis, Characterization, and Crystal Structures of Novel Coordination Polymers of Praseodymium(III) and Neodymium(III) Containing Dialkyl Phosphate. B KOREAN CHEM SOC 2009. [DOI: 10.5012/bkcs.2009.30.2.489] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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8
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Papatriantafyllopoulou C, Manessi-Zoupa E, Escuer A, Perlepes SP. The sulfate ligand as a promising “player” in 3d-metal cluster chemistry. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.02.075] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Murugavel R, Choudhury A, Walawalkar MG, Pothiraja R, Rao CNR. Metal Complexes of Organophosphate Esters and Open-Framework Metal Phosphates: Synthesis, Structure, Transformations, and Applications. Chem Rev 2008; 108:3549-655. [DOI: 10.1021/cr000119q] [Citation(s) in RCA: 278] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- R. Murugavel
- Department of Chemistry, IIT-Bombay, Powai, Mumbai-400076, India, and Chemistry and Physics of Materials Unit, Jawaharlal Nehru Center of Advanced Scientific Research, Jakkur P.O., Bangalore-560 064, India
| | - Amitava Choudhury
- Department of Chemistry, IIT-Bombay, Powai, Mumbai-400076, India, and Chemistry and Physics of Materials Unit, Jawaharlal Nehru Center of Advanced Scientific Research, Jakkur P.O., Bangalore-560 064, India
| | - M. G. Walawalkar
- Department of Chemistry, IIT-Bombay, Powai, Mumbai-400076, India, and Chemistry and Physics of Materials Unit, Jawaharlal Nehru Center of Advanced Scientific Research, Jakkur P.O., Bangalore-560 064, India
| | - R. Pothiraja
- Department of Chemistry, IIT-Bombay, Powai, Mumbai-400076, India, and Chemistry and Physics of Materials Unit, Jawaharlal Nehru Center of Advanced Scientific Research, Jakkur P.O., Bangalore-560 064, India
| | - C. N. R. Rao
- Department of Chemistry, IIT-Bombay, Powai, Mumbai-400076, India, and Chemistry and Physics of Materials Unit, Jawaharlal Nehru Center of Advanced Scientific Research, Jakkur P.O., Bangalore-560 064, India
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Selmeczi K, Michel C, Milet A, Gautier-Luneau I, Philouze C, Pierre JL, Schnieders D, Rompel A, Belle C. Structural, Kinetic, and Theoretical Studies on Models of the Zinc-Containing Phosphodiesterase Active Center: Medium-Dependent Reaction Mechanisms. Chemistry 2007; 13:9093-106. [PMID: 17680569 DOI: 10.1002/chem.200700104] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Dinuclear zinc(II) complexes [Zn(2)(bpmp)(mu-OH)](ClO(4))(2) (1) and [Zn(2)(bpmp)(H(2)O)(2)](ClO(4))(3) (2) (H-BPMP=2,6-bis[bis(2-pyridylmethyl)aminomethyl]-4-methylphenol) have been synthesized, structurally characterized, and pH-driven changes in metal coordination observed. The transesterification reaction of 2-hydroxypropyl p-nitrophenyl phosphate (HPNP) in the presence of the two complexes was studied both in a water/DMSO (70:30) mixture and in DMSO. Complex 2 was not reactive whereas for 1 considerable rate enhancement of the spontaneous hydrolysis reaction was observed. A detailed mechanistic investigation by kinetic studies, spectroscopic measurements ((1)H, (31)P NMR spectroscopy), and ESI-MS analysis in conjunction with ab initio calculations was performed on 1. Based on these results, two medium-dependent mechanisms are presented and an unusual bridging phosphate intermediate is proposed for the process in DMSO.
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Affiliation(s)
- Katalin Selmeczi
- Département de Chimie Moléculaire, Université J. Fourier, Grenoble I, UMR-5250, ICMG FR-2607, CNRS BP-53, 38041 Grenoble, France
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11
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Rafizadeh M, Amani V. Synthesis, Characterization, and Crystal Structure of new Macromolecule Iron(III) Complex Containing Dimethyl Phosphate, Acetate, and Dimethyl sulfoxide. Z Anorg Allg Chem 2007. [DOI: 10.1002/zaac.200700301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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12
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Rafizadeh M, Amani V, Farajian H. Synthesis, Characterization, and Crystal Structures of a New Coordination Polymer of Manganese(II) Containing Dimethyl Phosphate. Z Anorg Allg Chem 2007. [DOI: 10.1002/zaac.200700149] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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13
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Rafizadeh M, Tayebee R, Amani V, Nasseh M. Crystal structure and molecular stereochemistry of polymeric Cu2(DMP)4(DMSO) as a platform for phosphate diester binding. CRYSTAL RESEARCH AND TECHNOLOGY 2006. [DOI: 10.1002/crat.200510697] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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14
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Barker JE, Liu Y, Yee GT, Chen WZ, Wang G, Rivera VM, Ren T. Cu2{[18]ane-N6} Complexes: Structures, Magnetism, and Phosphate Monoester Binding. Inorg Chem 2006; 45:7973-80. [PMID: 16961393 DOI: 10.1021/ic0611140] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A novel Cu(II)2 complex of the [18]ane-N6 macrocycle ([18]ane-N6 = 1,4,7,10,13,16-hexaazacyclooctadecane) was prepared from the reaction between [18]ane-N6 and Cu(II) salts such as Cu(NO3)2 and Cu(OAc)2. A structural study of the complex derived from Cu(OAc)2 (1) revealed a Cu(II)2 core encircled by a [18]ane-N6 ligand and two mu-O-OAc ligands. The facile replacement of mu-O-OAc by a phosphate monoester [PO3(OR)2-] yielded a number of bis(phosphate monoester)dicopper complexes with ROPO3(2-) as hydrogen phosphate (HPO4(2-), 3a), phenyl phosphate [PO3(OPh)2-, 3b], glycerol 2-phosphate [PO3(OCH(CH2OH)2)2-, 3c], alpha-d-gluocose phosphate [PO3(C6H11O6)2-, 3d], and dl-alpha-glycerol phosphate [PO3(OCH2CHOHCH2OH)2-, 3e]. Structural studies of compounds 3a-d confirmed both the retention of the Cu2{[18]ane-N6} core and a mu-O-PO3(OR) coordination mode. Displacement of acetate by a phosphate monoester in an aqueous solution was accompanied by a significant change in the visible absorption, which enables the establishment of relative association constants of PO3(OR)2- on the order of 10(4) in the unbuffered solution and 10(3) in the buffered solution (HEPES). Measurement of the magnetic susceptibility of compound 3a over the temperature range of 5-300 K and subsequent modeling revealed a weak antiferromagnetic coupling (J = -1.1 cm(-1)) between two Cu(II) centers.
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Affiliation(s)
- Julia E Barker
- Department of Chemistry, University of Miami, Coral Gables, Florida 33124, USA
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Crystal Structure and Molecular Stereochemistry of Novel Polymeric Cu2(DMP)44(DMSO) as a Platform for Phosphate Diester Binding. B KOREAN CHEM SOC 2005. [DOI: 10.5012/bkcs.2005.26.4.594] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Glerup J, Goodson PA, Hodgson DJ, Masood MA, Michelsen K. Syntheses and characterization of novel binuclear chromium (III) complexes of 1,4,8,11-tetraazacyclotetradecane (cyclam). Inorganica Chim Acta 2005. [DOI: 10.1016/j.ica.2004.07.055] [Citation(s) in RCA: 13] [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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17
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The hydrogenphosphate complex of (1,5-cyclooctadiene)iridium(I), {[Bu4N][(1,5-COD)Ir·HPO4]}n: synthesis, spectroscopic characterization, and ES-MS of a new, preferred precursor to HPO42− and Bu4N+ stabilized Ir(0)n nanoclusters. J Organomet Chem 2004. [DOI: 10.1016/j.jorganchem.2003.10.038] [Citation(s) in RCA: 10] [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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Barker JE, Liu Y, Martin ND, Ren T. Dicopper-[18]ane-N6 Complex as the Platform for Phosphate Monoester Binding. J Am Chem Soc 2003; 125:13332-3. [PMID: 14583009 DOI: 10.1021/ja036407w] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Dicopper-[18]ane-N6 complex functions as a broad spectrum receptor for phosphate monoesters.
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Affiliation(s)
- Julia E Barker
- Department of Chemistry and Center for Supramolecular Science, University of Miami, Coral Gables, Florida 33124, USA
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Fry FH, Jensen P, Kepert CM, Spiccia L. Macrocyclic copper(II) and zinc(II) complexes incorporating phosphate esters. Inorg Chem 2003; 42:5637-44. [PMID: 12950212 DOI: 10.1021/ic026091d] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Slow evaporation of solutions prepared by adding either Cu(ClO(4))(2).6H(2)O or Zn(ClO(4))(2).6H(2)O to solutions containing appropriate proportions of Me(3)tacn (1,4,7-trimethyl-1,4,7-triazacyclononane) and sodium phenyl phosphate (Na(2)PhOPO(3)) gave dark blue crystals of [Cu(3)(Me(3)tacn)(3)(PhOPO(3))(2)](ClO(4))(2).(1)/(2)H(2)O (1) and colorless crystals of [Zn(2)(Me(3)tacn)(2)(H(2)O)(4)(PhOPO(3))](ClO(4))(2).H(2)O (2), respectively. Blue crystals of [Cu(tacn)(2)](BNPP)(2) (3) formed in an aqueous solution of [Cu(tacn)Cl(2)], bis(p-nitrophenyl phosphate) (BNPP), and HEPES buffer (pH 7.4). Compound 1 crystallizes in the triclinic space group P1 (No. 2) with a = 9.8053(2) A, b = 12.9068(2) A, c = 22.1132(2) A, alpha = 98.636(1) degrees, beta = 99.546(1) degrees, gamma = 101.1733(8) degrees, and Z = 2 and exhibits trinuclear Cu(II) clusters in which square pyramidal metal centers are capped by two phosphate esters located above and below the plane of the metal centers. The trinuclear cluster is asymmetric having Cu...Cu distances of 4.14, 4.55, and 5.04 A. Compound 2 crystallizes in the monoclinic space group P2(1)/c (No. 14) with a = 13.6248(2) A, b = 11.6002(2) A, c = 25.9681(4) A, beta = 102.0072(9) degrees, and Z = 4 and contains a dinuclear Zn(II) complex formed by linking two units of [Zn(Me(3)tacn)(OH(2))(2)](2+) by a single phosphate ester. Compound 3 crystallizes in the monoclinic space group C2/c (No. 15) with a = 24.7105(5) A, b = 12.8627(3) A, c = 14.0079(3) A, beta = 106.600(1) degrees, and Z = 4 and consists of mononuclear [Cu(tacn)(2)](2+) cations whose charge is balanced by the BNPP(-) anions.
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Affiliation(s)
- Fiona H Fry
- School of Chemistry, P.O. Box 23, Monash University, Victoria, 3800 Australia
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Yashiro M, Higuchi M, Komiyama M, Ishii Y. Hydrolysis of Diribonucleoside Monophosphate Diesters Assisted by a Manganese(II) Complex. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2003. [DOI: 10.1246/bcsj.76.1813] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Karambelkar VV, Krishnamurthy D, Stern CL, Zakharov LN, Rheingold AL, Goldberg DP. A new bis(imidazolyl)(alkylthiolate) tripodal ligand and the spontaneous formation of a disulfide-linked, hydroxo-bridged dinuclear zinc complex. Chem Commun (Camb) 2002:2772-3. [PMID: 12478739 DOI: 10.1039/b207770a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The new sterically encumbered, tripodal N2S(alkylthiolate) ligand, LIm2SH, has been synthesized and used to prepare [(LIm2S)ZnCH3], which upon protonolysis under acidic conditions leads to the synthesis of a novel dinucleating ligand and a zinc dimer with an unusual structure.
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Affiliation(s)
- Vivek V Karambelkar
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles Street, Baltimore, Maryland 21218, USA
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