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Mahfoudh N, Karoui K, BenRhaiem A. Optical studies and dielectric response of [DMA] 2MCl 4 (M = Zn and Co) and [DMA] 2ZnBr 4. RSC Adv 2021; 11:24526-24535. [PMID: 35481033 PMCID: PMC9036883 DOI: 10.1039/d1ra03652a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 07/06/2021] [Indexed: 11/21/2022] Open
Abstract
[DMA]2ZnCl4, [DMA]2CoCl4 and [DMA]2ZnBr4 crystallized in the monoclinic system, in the P21/n, P21/n and P21/c space groups, respectively. The optical properties of [DMA]2MCl4 (M = Zn and Co) and [DMA]2ZnBr4 were studied using ultraviolet-visible (UV-Vis) spectroscopy in the range of 200–800 nm. The Tauc model was used to determine the band gap energy of each hybrid compound. The calculated values of the direct and indirect band gaps (Egd, Egi) for all samples were found to be in the range of 1.91 eV to 4.29 eV for [DMA]2ZnCl4, 4.76 eV to 5.34 eV for [DMA]2ZnBr4 and 1.77 eV to 3.84 eV for [DMA]2CoCl4. The Urbach energy (Eu), extinction coefficient (k) and refractive index (n) of each compound was calculated. On the other hand, the dispersion of (n) is discussed in terms of the single oscillator Wemple–DiDomenico model. The single oscillator energy (E0), the dispersion energy (Ed), and both the real εr and imaginary parts εi of the dielectric permittivity were estimated. The variation of optical conductivity with the incident photon energy has also been studied. We employed impedance spectroscopy to thoroughly investigate the dipolar dynamics in the prepared materials. The evolution of the dielectric loss, as a function of frequency, showed a distribution of relaxation times, which probably could be of a Maxwell–Wagner type interfacial polarization relaxation, possibly attributed to grain boundary effects or blocking at the contacts. In fact, the current work opens an efficient path to high quality organic–inorganic halide perovskites with good optical properties, which makes them suitable for application in nonlinear optoelectronic devices. [DMA]2ZnCl4, [DMA]2CoCl4 and [DMA]2ZnBr4 crystallized in the monoclinic system, in the P21/n, P21/n and P21/c space groups, respectively.![]()
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Affiliation(s)
- N Mahfoudh
- Laboratory of Spectroscopic Characterization and Optic Materials, Faculty of Sciences, University of Sfax B. P. 1171 3000 Sfax Tunisia
| | - K Karoui
- Laboratory of Spectroscopic Characterization and Optic Materials, Faculty of Sciences, University of Sfax B. P. 1171 3000 Sfax Tunisia
| | - A BenRhaiem
- Laboratory of Spectroscopic Characterization and Optic Materials, Faculty of Sciences, University of Sfax B. P. 1171 3000 Sfax Tunisia
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Tamer Ö, Avcı D, Atalay Y, Çoşut B, Zorlu Y, Erkovan M, Yerli Y. Synthesis, crystal structure, spectroscopic characterization and nonlinear optical properties of manganese (II) complex of picolinate: A combined experimental and computational study. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2015.10.077] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Sun C, Prosperini S, Quagliotto P, Viscardi G, Yoon SS, Gobetto R, Nervi C. Electrocatalytic reduction of CO2 by thiophene-substituted rhenium(i) complexes and by their polymerized films. Dalton Trans 2016; 45:14678-88. [PMID: 26800520 DOI: 10.1039/c5dt04491j] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Three novel thiophene substituted bipyridine ligands and their corresponding rhenium complexes were synthesized and tested for the electrocatalytic reduction of CO2. Two complexes underwent oxidative electropolymerization on a glassy carbon electrode (GCE) surface. The conductive polymers chemically deposited on the GCE allow electron transport from the surface to the polymer-attached rhenium catalytic center in contact with the solution. The chemically modified electrodes show significant catalytic activities for CO2 reduction, and moderate relative higher stabilities when compared with the homogeneous solution counterparts.
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Affiliation(s)
- Cunfa Sun
- Department of Chemistry, NIS and CIRCC (Bari), University of Torino via P. Giuria 7, 10125 Torino, Italy.
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Giannetto A, Puntoriero F, Notti A, Parisi MF, Ielo I, Nastasi F, Bruno G, Campagna S, Lanza S. Self‐Assembly of Hexameric Macrocycles from Pt
II
/Ferrocene Dimetallic Subunits – Synthesis, Characterization, Chemical Reactivity, and Oxidation Behavior. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201501050] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Antonino Giannetto
- Dipartimento di Scienze Chimiche, Università di Messina, Via F. Stagno d'Alcontres 31, 98166 Messina, Italy, http://ww2.unime.it/photochemistry
| | - Fausto Puntoriero
- Dipartimento di Scienze Chimiche, Università di Messina, Via F. Stagno d'Alcontres 31, 98166 Messina, Italy, http://ww2.unime.it/photochemistry
- Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SOLAR‐CHEM), Sezione di Messina, 98166 Messina, Italy
| | - Anna Notti
- Dipartimento di Scienze Chimiche, Università di Messina, Via F. Stagno d'Alcontres 31, 98166 Messina, Italy, http://ww2.unime.it/photochemistry
| | - Melchiorre F. Parisi
- Dipartimento di Scienze Chimiche, Università di Messina, Via F. Stagno d'Alcontres 31, 98166 Messina, Italy, http://ww2.unime.it/photochemistry
| | - Ileana Ielo
- Dipartimento di Scienze Chimiche, Università di Messina, Via F. Stagno d'Alcontres 31, 98166 Messina, Italy, http://ww2.unime.it/photochemistry
| | - Francesco Nastasi
- Dipartimento di Scienze Chimiche, Università di Messina, Via F. Stagno d'Alcontres 31, 98166 Messina, Italy, http://ww2.unime.it/photochemistry
- Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SOLAR‐CHEM), Sezione di Messina, 98166 Messina, Italy
| | - Giuseppe Bruno
- Dipartimento di Scienze Chimiche, Università di Messina, Via F. Stagno d'Alcontres 31, 98166 Messina, Italy, http://ww2.unime.it/photochemistry
| | - Sebastiano Campagna
- Dipartimento di Scienze Chimiche, Università di Messina, Via F. Stagno d'Alcontres 31, 98166 Messina, Italy, http://ww2.unime.it/photochemistry
- Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SOLAR‐CHEM), Sezione di Messina, 98166 Messina, Italy
- ISOF‐CNR, via Gobetti 101, 40129 Bologna, Italy
| | - Santo Lanza
- Dipartimento di Scienze Chimiche, Università di Messina, Via F. Stagno d'Alcontres 31, 98166 Messina, Italy, http://ww2.unime.it/photochemistry
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Wilson JL, Fayad Kobeissi S, Oudir S, Haas B, Michel B, Dubois Randé JL, Ollivier A, Martens T, Rivard M, Motterlini R, Foresti R. Design and synthesis of new hybrid molecules that activate the transcription factor Nrf2 and simultaneously release carbon monoxide. Chemistry 2014; 20:14698-704. [PMID: 25224540 DOI: 10.1002/chem.201403901] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Indexed: 12/15/2022]
Abstract
The transcription factor Nrf2 and its downstream target heme oxygenase-1 (HO-1) are essential protective systems against oxidative stress and inflammation. The products of HO-1 enzymatic activity, biliverdin and carbon monoxide (CO), actively contribute to this protection, suggesting that exploitation of these cellular systems may offer new therapeutic avenues in a variety of diseases. Starting from a CO-releasing compound and a chemical scaffold exhibiting electrophilic characteristics (esters of fumaric acid), we report the synthesis of hybrid molecules that simultaneously activate Nrf2 and liberate CO. These hybrid compounds, which we termed "HYCOs", release CO to myoglobin and activate the CO-sensitive fluorescent probe COP-1, while also potently inducing nuclear accumulation of Nrf2 and HO-1 expression and activity in different cell types. Thus, we provide here the first example of a new class of pharmacologically active molecules that target the HO-1 pathway by combining an Nrf2 activator coordinated to a CO-releasing group.
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Affiliation(s)
- Jayne Louise Wilson
- Inserm, Unité 955, Equipe 3 and Faculté de Médicine, Université Paris-Est Créteil, 8 Rue du General Sarrail, 94000 Créteil (France)
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Tanaka S, Tsurugi H, Mashima K. Supramolecular assemblies of multi-nuclear transition metal complexes: Synthesis and redox properties. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.01.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Janjua MRSA, Jamil S, Ahmad T, Yang Z, Mahmood A, Pan S. Quantum chemical perspective of efficient NLO materials based on dipolar trans-tetraammineruthenium (II) complexes with pyridinium and thiocyanate ligands: First theoretical framework. COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2014.01.031] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Morales-Verdejo C, Martínez-Díaz I, Adams C, Araneda JF, Oehninger L, Mac-Leod Carey D, Muñoz-Castro A, Arratia-Pérez R, Chávez I, Manríquez JM. New mono and bimetallic iron complexes derived from partially methylated s-indacene. Evidence of a trinuclear iron s-indacene complex. Polyhedron 2014. [DOI: 10.1016/j.poly.2013.11.023] [Citation(s) in RCA: 7] [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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Griffith CS, Koutsantonis GA. The Chemistry of Transition Metal Ethyne-1,2-diyl Complexes. Aust J Chem 2012. [DOI: 10.1071/ch12190] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The chemistry and reactivity of ethyne-1,2-diyl compounds, LnM–CC–MLn, is reviewed. These complexes are simple analogues of organic alkynes, or dimetalloalkynes, and there appears to be no general route to the preparation of these complexes, except perhaps using acid/base methodology. Reactivity patterns, in general, mimic those of simple organic alkynes but have the added dimension of reactive M–C(sp) bonds that sometimes participate in the formation of multimetallic compounds with metal electrophiles.
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Valderrama M, Arancibia V, Contreras R, Soto C. SYNTHESIS AND ELECTROCHEMICAL PROPERTIES OF CYCLOPENTADIENYLIRON(II) COMPLEXES WITH BIS(DIPHENYLPHOSPHINO)AMINE AS LIGAND. J COORD CHEM 2011. [DOI: 10.1080/00958970108022651] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Mauricio Valderrama
- a Departamento de Química Inorgánica, Facultad de Química , Pontificia Universidad Católica de Chile , Casilla 306, Santiago, 22, Chile
| | - VeróNica Arancibia
- a Departamento de Química Inorgánica, Facultad de Química , Pontificia Universidad Católica de Chile , Casilla 306, Santiago, 22, Chile
| | - Raúl Contreras
- a Departamento de Química Inorgánica, Facultad de Química , Pontificia Universidad Católica de Chile , Casilla 306, Santiago, 22, Chile
| | - Cristián Soto
- a Departamento de Química Inorgánica, Facultad de Química , Pontificia Universidad Católica de Chile , Casilla 306, Santiago, 22, Chile
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Low PJ, Brown NJ. Electronic Interactions Between and Through Covalently-Bonded Polymetallic Complexes. J CLUST SCI 2010. [DOI: 10.1007/s10876-010-0328-4] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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[Cp*Ru(s-indacene)RuCp*] and [Cp*Ru(s-indacene)RuCp*]+: Experimental and theoretical findings concerning the electronic structure of neutral and mixed valence organometallic systems. Polyhedron 2010. [DOI: 10.1016/j.poly.2009.12.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bruce MI, Zaitseva NN, Skelton BW, White AH, Fox MA, Low PJ. Syntheses and molecular structures of some tricobaltcarbonylclusters containing 2,4,6-trimethyl-1,3,5-trithiane. Dalton Trans 2010; 39:1222-34. [DOI: 10.1039/b909708b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Jing S, Morley CP, Webster CA, Di Vaira M. Synthesis, Characterisation, Complexation and Electrochemistry of Linear Tridentate FcE(CH2)3E′(CH2)3EFc (E, E′ = Se or Te) Ligands: X-ray Crystal Structures of FcSe(CH2)3Se(CH2)3SeFc and [PtCl{FcSe(CH2)3Se(CH2)3SeFc}]PF6{Fc = [Fe(η5-C5H5)(η5-C5H4)]}. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200800316] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Arnanz A, Marcos ML, Delgado S, González-Velasco J, Moreno C. The effect of thiophene ring substitution position on the properties and electrochemical behaviour of alkyne–dicobaltcarbonylthiophene complexes. J Organomet Chem 2008. [DOI: 10.1016/j.jorganchem.2008.08.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Syntheses and molecular structures of some compounds containing many-atom chains end-capped by tricobalt carbonyl clusters. J Organomet Chem 2008. [DOI: 10.1016/j.jorganchem.2008.06.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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17
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Szafert S, Paul F, Meyer WE, Gladysz JA, Lapinte C. Synthesis and reactivity of new heterodinuclear iron/rhenium Cx complexes of the formula (η5-C5Me5)Re(NO)(PPh3)(CC)n(η2-dppe)Fe(η5-C5Me5) (n=3, 4): Redox properties and a dicobalt hexacarbonyl adduct. CR CHIM 2008. [DOI: 10.1016/j.crci.2007.10.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Bonaccorsi C, de Biani FF, Leoni P, Marchetti F, Marchetti L, Zanello P. Site Selectivity in the Reactions of the Hexanuclear Platinum Cluster [Pt6(μ-PtBu2)4(CO)6][CF3SO3]2. Chemistry 2008; 14:847-56. [PMID: 17907130 DOI: 10.1002/chem.200700765] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The previously reported hexanuclear cluster [Pt(6)(mu-PtBu(2))(4)(CO)(6)](2+)[Y](2) (1-Y(2): Y=CF(3)SO(3) (-)) contains a central Pt(4) tetrahedron bridged at each of the opposite edges by another platinum atom; in turn, four phosphido ligands bridge the four Pt-Pt bonds not involved in the tetrahedron, and, finally, one carbonyl ligand is terminally bonded to each metal centre. Interestingly, the two outer carbonyls are more easily substituted or attacked by nucleophiles than the inner four, which are bonded to the tetrahedron vertices. In fact, the reaction of 1-Y(2) with 1 equiv of [nBu(4)N]Cl or with an excess of halide salts gives the monochloride [Pt(6)(mu-PtBu(2))(4)(CO)(5)Cl](+)[Y], 2-Y, or the neutral dihalide derivatives [Pt(6)(mu-PtBu(2))(4)(CO)(4)X(2)] (3: X=Cl; 4: X=Br; 5: X=I). Moreover, the useful unsymmetrically substituted [Pt(6)(mu-PtBu(2))(4)(CO)(4)ICl] (6) was obtained by reacting equimolar amounts of 2 and [nBu(4)N]I, and the dicationic derivatives [Pt(6)(mu-PtBu(2))(4)(CO)(4)L(2)](2+)[Y](2) (7-Y(2): L=(13)CO; 8-Y(2): L=CNtBu; 9-Y(2): L=PMe(3)) were obtained by reaction of an excess of the ligand L with 1-Y(2). Weaker nitrogen ligands were introduced by dissolving the dichloride 3 in acetonitrile or pyridyne in the presence of TlPF(6) to afford [Pt(6)(mu-PtBu(2))(4) (CO)(4)L(2)](2+)[Z](2) (Z=PF(6) (-), 10-Z(2): L=MeCN; 11-Z(2): L=Py). The "apical" carbonyls in 1-Y(2) are also prone to nucleophilic addition (Nu(-): H(-), MeO(-)) affording the acyl derivatives [Pt(6)(mu-PtBu(2))(4)(CO)(4)(CONu)(2)] (12: Nu=H; 13: Nu=OMe). Complex 12 is slowly converted into the dihydride [Pt(6)(mu-PtBu(2))(4)(CO)(4)H(2)] (14), which was more cleanly prepared by reacting 3 with NaBH(4). In a unique case we observed a reaction involving also the inner carbonyls of complex 1, that is, in the reaction with a large excess of the isocyanides R-NC, which form the corresponding persubstituted derivatives [Pt(6)(mu-tPBu(2))(4)(CN-R)(6)](2+)[Y](2), (15-Y(2): R=tBu; 16-Y(2) (2-): R=-C(6)H(4)-4-C triple bond CH). All complexes were characterized by microanalysis, IR and multinuclear NMR spectroscopy. The crystal and molecular structures of complexes 3, 5, 6 and 9-Y(2) are also reported. From the redox viewpoint, all complexes display two reversible one-electron reduction steps, the location of which depends both upon the electronic effects of the substituents, and the overall charge of the original complex.
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Affiliation(s)
- Cristina Bonaccorsi
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento, 35, 56126 Pisa, Italy
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Lang H, Zoufalá P, Klaib S, del Villar A, Rheinwald G. Synthesis of di-, tri- and tetranuclear platinum(II) and copper(I) acetylide complexes. J Organomet Chem 2007. [DOI: 10.1016/j.jorganchem.2007.06.034] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Colquhoun VP, Goeta AE, Low PJ. Reaction of a bis(bimetallic)-supported butadiyndiyl ligand with terminal acetylenes. J CLUST SCI 2007. [DOI: 10.1007/s10876-007-0113-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Lanza S, Loiseau F, Tresoldi G, Serroni S, Campagna S. Heteropolymetallic complexes containing 1,1′-diphenylphosphino-ferrocene. Inorganica Chim Acta 2007. [DOI: 10.1016/j.ica.2006.10.021] [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]
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Bruce MI, Skelton BW, White AH, Zaitseva NN. Tricobalt Carbonyl Clusters Containing Cn (n = 2, 4, 6) Ligands. Organometallics 2006. [DOI: 10.1021/om058056v] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael I. Bruce
- Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005, Australia, and Chemistry M313, University of Western Australia, Crawley, Western Australia 6009, Australia
| | - Brian W. Skelton
- Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005, Australia, and Chemistry M313, University of Western Australia, Crawley, Western Australia 6009, Australia
| | - Allan H. White
- Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005, Australia, and Chemistry M313, University of Western Australia, Crawley, Western Australia 6009, Australia
| | - Natasha N. Zaitseva
- Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005, Australia, and Chemistry M313, University of Western Australia, Crawley, Western Australia 6009, Australia
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Packheiser R, Walfort B, Lang H. Heterobi- and Heterotrimetallic Transition Metal Complexes with Carbon-Rich Bridging Units. Organometallics 2006. [DOI: 10.1021/om0602355] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rico Packheiser
- Lehrstuhl für Anorganische Chemie, Institut für Chemie, Fakultät für Naturwissenschaften, Technische Universität Chemnitz, Strasse der Nationen 62, 09111 Chemnitz, Germany
| | - Bernhard Walfort
- Lehrstuhl für Anorganische Chemie, Institut für Chemie, Fakultät für Naturwissenschaften, Technische Universität Chemnitz, Strasse der Nationen 62, 09111 Chemnitz, Germany
| | - Heinrich Lang
- Lehrstuhl für Anorganische Chemie, Institut für Chemie, Fakultät für Naturwissenschaften, Technische Universität Chemnitz, Strasse der Nationen 62, 09111 Chemnitz, Germany
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Lang H, Packheiser R, Walfort B. Organometallic π-Tweezers, NCN Pincers, and Ferrocenes as Molecular “Tinkertoys” in the Synthesis of Multiheterometallic Transition-Metal Complexes. Organometallics 2006. [DOI: 10.1021/om058042p] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Heinrich Lang
- Fakultät für Naturwissenschaften, Institut für Chemie, Lehrstuhl Anorganische Chemie, Technische Universität Chemnitz, Strasse der Nationen 62, 09111 Chemnitz, Germany
| | - Rico Packheiser
- Fakultät für Naturwissenschaften, Institut für Chemie, Lehrstuhl Anorganische Chemie, Technische Universität Chemnitz, Strasse der Nationen 62, 09111 Chemnitz, Germany
| | - Bernhard Walfort
- Fakultät für Naturwissenschaften, Institut für Chemie, Lehrstuhl Anorganische Chemie, Technische Universität Chemnitz, Strasse der Nationen 62, 09111 Chemnitz, Germany
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Macazaga M, Marcos M, Moreno C, Benito-Lopez F, Gomez-González J, González-Velasco J, Medina R. Syntheses, structures and comparative electrochemical study of π-acetylene complexes of cobalt. J Organomet Chem 2006. [DOI: 10.1016/j.jorganchem.2005.07.065] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Jing S, Morley CP, Webster CA, Di Vaira M. Synthesis and characterization of Pd and Pt complexes of 1,3-bis(ferrocenylchalcogeno)propanes: crystal structures of FcSe(CH2)3SeFc and [M{FcE(CH2)3E'Fc}2](PF6)2(M = Pd, Pt; E, E′ = Se, Te; Fc = [Fe(η5-C5H5)(η5-C5H4)]). Dalton Trans 2006:4335-42. [PMID: 16967117 DOI: 10.1039/b604302j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reaction of a 1,3-bis(ferrocenylchalcogeno)propane, FcE(CH2)3E'Fc (L: E, E' = Se or Te; Fc = [Fe(eta5-C5H5)(eta5-C5H4)]), with a palladium(II) or platinum(II) precursor [M(NCMe)4](PF6)2 (M = Pd or Pt) in acetonitrile at room temperature led in good yield to the bis-chelate complexes [ML2](PF6)2. The structures of FcSe(CH2)3SeFc and all six complexes have been determined by X-ray crystallography. Electrochemical studies showed that electronic communication between ferrocenyl groups, absent in all three bis(ferrocenylchalcogeno)propanes, is established on complexation only for E = Se and E' = Se or Te, when the through-bond Fe...Fe distance is reduced to 13.17 A or less.
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Affiliation(s)
- Su Jing
- Department of Chemistry, University of Wales Swansea, Singleton Park, Swansea, UKSA2 8PP
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Electrochemical studies of bi- and polymetallic complexes featuring acetylide based bridging ligands. J Solid State Electrochem 2005. [DOI: 10.1007/s10008-005-0693-3] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Bruce MI, Zaitseva NN, Skelton BW, White AH. Cluster-containing carbon-rich molecules: Reactions of ruthenium cluster carbonyls with {Au(PR3)}2(μ-CCCC) (R=Ph, tol). J Organomet Chem 2005. [DOI: 10.1016/j.jorganchem.2005.04.010] [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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Fabrizi de Biani F, Ienco A, Laschi F, Leoni P, Marchetti F, Marchetti L, Mealli C, Zanello P. Formation and Characterization of the Hexanuclear Platinum Cluster [Pt6(μ-PBut2)4(CO)6](CF3SO3)2 through Structural, Electrochemical, and Computational Analyses. J Am Chem Soc 2005; 127:3076-89. [PMID: 15740147 DOI: 10.1021/ja043626o] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction between equimolar amounts of Pt(3)(mu-PBu(t)()(2))(3)(H)(CO)(2), Pt(3)()H, and CF(3)SO(3)H under CO atmosphere affords the triangular species [Pt(3)(mu-PBu(t)()(2))(3)(CO)(3)]X, [Pt(3)()(CO)(3)()(+)()]X (X = CF(3)SO(3)(-)), characterized by X-ray crystallography, or in an excess of acid, [Pt(6)(mu-PBu(t)()(2))(4)(CO)(6)]X(2), [Pt(6)()(2+)()]X(2)(). Structural determination shows the latter to be a rare hexanuclear cluster with a Pt(4) tetrahedral core formed by joining the unbridged sides of two orthogonal Pt(3) triangles. The dication Pt(6)()(2+)() features also extensive redox properties as it undergoes two reversible one-electron reductions to the congeners [Pt(6)(mu-PBu(t)()(2))(4)(CO)(6)](+) (Pt(6)()(+)(), E(1/2) = -0.27 V) and Pt(6)(mu-PBu(t)()(2))(4)(CO)(6) (Pt(6)(), E(1/2) = -0.54 V) and a further quasi-reversible two-electron reduction to the unstable dianion Pt(6)()(2)()(-)() (E(1/2) = -1.72 V). The stable radical (Pt(6)()(+)()) and diamagnetic (Pt(6)()) species are also formed via chemical methods by using 1 or 2 equiv of Cp(2)Co, respectively; further reduction of Pt(6)()(2+)() causes fast decomposition. The chloride derivatives [Pt(6)(mu-PBu(t)()(2))(4)(CO)(5)Cl]X, (Pt(6)()Cl(+)())X, and Pt(6)(mu-PBu(t)()(2))(4)(CO)(4)Cl(2), Pt(6)()Cl(2)(), observed as side-products in some electrochemical experiments, were prepared independently. The reaction leading to Pt(3)()(CO)(3)()(+)() has been analyzed with DFT methods, and identification of key intermediates allows outlining the reaction mechanism. Moreover, calculations for the whole series Pt(6)()(2+)() --> Pt(6)()(2)()(-)()( )()afford the otherwise unknown structures of the reduced derivatives. While the primary geometry is maintained by increasing electron population, the system undergoes progressive and concerted out-of-plane rotation of the four phosphido bridges (from D(2)(d)() to D(2) symmetry). The bonding at the central Pt(4) tetrahedron of the hexanuclear clusters (an example of 4c-2e(-) inorganic tetrahedral aromaticity in Pt(6)()(2+)()) is explained in simple MO terms.
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Wong WY, Lu GL, Choi KH, Guo YH. Carbon-rich organometallics: synthesis and characterization of new ferrocenyl end-capped bis(butadiynyl) fluorene derivatives. J Organomet Chem 2005. [DOI: 10.1016/j.jorganchem.2004.09.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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WONG WAIYEUNG. MOLECULAR DESIGN, SYNTHESIS AND STRUCTURE-PROPERTY RELATIONSHIP OF OLIGOTHIOPHENE-DERIVED METALLAYNES. COMMENT INORG CHEM 2005. [DOI: 10.1080/02603590590920514] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Al-Anber M, Stein T, Vatsadze S, Lang H. Organometallic π-tweezers incorporating pyrazine- and pyridine-based bridging units. Inorganica Chim Acta 2005. [DOI: 10.1016/j.ica.2004.07.054] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Arnanz A, Marcos ML, Moreno C, Farrar DH, Lough AJ, Yu JO, Delgado S, González-Velasco J. Synthesis, structures and comparative electrochemical study of 2,5-bis(trimethylsilylethynyl)thiophene coordinated cobalt carbonyl units. J Organomet Chem 2004. [DOI: 10.1016/j.jorganchem.2004.07.028] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Brown MJ, Corrigan JF. Synthesis, characterization and electrochemistry of ferrocenylselenolate bridged palladium(II) and platinum(II) complexes. J Organomet Chem 2004. [DOI: 10.1016/j.jorganchem.2004.05.044] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bruce MI, Low PJ. Transition Metal Complexes Containing All-Carbon Ligands. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2004. [DOI: 10.1016/s0065-3055(03)50004-1] [Citation(s) in RCA: 274] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Wong WY, Ho KY, Ho SL, Lin Z. Carbon-rich organometallic materials derived from 4-ethynylphenylferrocene. J Organomet Chem 2003. [DOI: 10.1016/s0022-328x(03)00706-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wong WY, Ho KY, Choi KH. New ferrocenyl heterometallic complexes of 2,7-diethynylfluoren-9-one. J Organomet Chem 2003. [DOI: 10.1016/s0022-328x(02)02069-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Lindner E, Zong R, Eichele K, Ströbele M. Preparation, properties, and reactions of metal-containing heterocycles. J Organomet Chem 2002. [DOI: 10.1016/s0022-328x(02)01774-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Wong WY, Lu GL, Ng KF, Wong CK, Choi KH. Synthesis, structures and electrochemistry of bis(alkynylferrocene) complexes with fluorene spacers. J Organomet Chem 2001. [DOI: 10.1016/s0022-328x(01)00897-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Li Y, Lin ZY, Wong WT. Synthesis, Structural Characterization, Solvatochromism, and Electrochemistry of Tetra-Osmium Carbonyl Clusters Containing Azo-Ligands. Eur J Inorg Chem 2001. [DOI: 10.1002/1099-0682(200112)2001:12<3163::aid-ejic3163>3.0.co;2-q] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Synthesis and electrochemical study of cobalt carbonyl complexes of trimethylsilyl-substituted 1,3,5-triethynylbenzene. J Organomet Chem 2001. [DOI: 10.1016/s0022-328x(01)01028-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Alfonso G, Chávez I, Arancibia V, Manrı́quez JM, Garland MT, Roig A, Molins E, Baggio RF. Synthesis and characterization of [Cp*Fe-dicyclopenta(a,f)naphthalene-FeCp*] and [Cp*Fe-dicyclopenta(a,f)naphthalene-FeCp*] BF4−. J Organomet Chem 2001. [DOI: 10.1016/s0022-328x(00)00744-0] [Citation(s) in RCA: 11] [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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Low PJ, Bruce MI. Transition Metal Chemistry of 1,3-Diynes, Poly-ynes, and Related Compounds. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2001. [DOI: 10.1016/s0065-3055(01)48002-6] [Citation(s) in RCA: 151] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Wadepohl H, Gebert S, Pritzkow H, Osella D, Nervi C, Fiedler J. Redox Chemistry of [Co4(CO)3(μ3-CO)3(μ3-C7H7)(η5-C7H9)] – Reversible Carbon−Carbon Coupling versus Metal Cluster Degradation. Eur J Inorg Chem 2000. [DOI: 10.1002/1099-0682(200008)2000:8<1833::aid-ejic1833>3.0.co;2-f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Osella D, Nervi C, Milone L, Galeotti F, Vessières A, Jaouen G. The Co3(CO)9C moiety acts as an electroreducible marker for estradiol detection enhancement in the HPLC-ED technique. J Organomet Chem 2000. [DOI: 10.1016/s0022-328x(99)00490-8] [Citation(s) in RCA: 5] [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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Wong WY, Lam HY, Lee SM. Synthesis, electrochemistry and structural characterization of new dimeric cobalt η2-alkyne carbonyl complexes. J Organomet Chem 2000. [DOI: 10.1016/s0022-328x(99)00574-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Long NJ, Martin AJ, Vilar R, White AJP, Williams DJ, Younus M. Synthesis, Characterization, and Theoretical Studies of New Alkynylferrocene and -biferrocene Ligands and Their Platinum-Containing Dimers and Oligomers. Organometallics 1999. [DOI: 10.1021/om980986+] [Citation(s) in RCA: 84] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Affiliation(s)
- Peter F. H. Schwab
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, and Department of Chemistry, University of Utah, Salt Lake City, Utah 84112-0850
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