1
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A potential case of the rare Cluster Core Isomerism for phosphido-bridged Pt 3 units suggested by DFT calculations. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.09.068] [Citation(s) in RCA: 3] [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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2
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Bonuccelli V, Funaioli T, Leoni P, Marchetti F, Marchetti L, Pasquali M. Synthesis and characterization of non-bridging mono- and bis-σ-η1-alkynyl derivatives of the phosphido-bridged hexaplatinum core [Pt6(μ-PBut2)4(CO)4]2+. Dalton Trans 2016; 45:6878-92. [DOI: 10.1039/c6dt00410e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Several mono- or bis-alkynyl derivatives of the [Pt6(μ-PBut2)4(CO)4]2+ core, pivotal intermediates in the synthesis of new cluster-containing oligomers, were prepared and fully characterized.
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Affiliation(s)
- Veronica Bonuccelli
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- I-56124 Pisa
- Italy
| | - Tiziana Funaioli
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- I-56124 Pisa
- Italy
| | - Piero Leoni
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- I-56124 Pisa
- Italy
| | - Fabio Marchetti
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- I-56124 Pisa
- Italy
| | - Lorella Marchetti
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- I-56124 Pisa
- Italy
| | - Marco Pasquali
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- I-56124 Pisa
- Italy
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3
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Nemykin VN, Dudkin SV, Fathi-Rasekh M, Spaeth AD, Rhoda HM, Belosludov RV, Barybin MV. Probing Electronic Communications in Heterotrinuclear Fe–Ru–Fe Molecular Wires Formed by Ruthenium(II) Tetraphenylporphyrin and Isocyanoferrocene or 1,1′-Diisocyanoferrocene Ligands. Inorg Chem 2015; 54:10711-24. [DOI: 10.1021/acs.inorgchem.5b01614] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Victor N. Nemykin
- Department of Chemistry and Biochemistry, University of Minnesota, Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States
| | - Semyon V. Dudkin
- Department of Chemistry and Biochemistry, University of Minnesota, Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States
| | - Mahtab Fathi-Rasekh
- Department of Chemistry and Biochemistry, University of Minnesota, Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States
| | - Andrew D. Spaeth
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045, United States
| | - Hannah M. Rhoda
- Department of Chemistry and Biochemistry, University of Minnesota, Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States
| | | | - Mikhail V. Barybin
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045, United States
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4
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Mastrorilli P, Todisco S, Bagno A, Gallo V, Latronico M, Fortuño C, Gudat D. Multinuclear Solid-State NMR and DFT Studies on Phosphanido-Bridged Diplatinum Complexes. Inorg Chem 2015; 54:5855-63. [PMID: 26001215 DOI: 10.1021/acs.inorgchem.5b00627] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Piero Mastrorilli
- Dipartimento
di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica
(DICATECh), Politecnico di Bari, Via Orabona 4, I-70125 Bari, Italy
- Consiglio
Nazionale delle Ricerche, Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Via Orabona 4, 70125 Bari, Italy
| | - Stefano Todisco
- Dipartimento
di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica
(DICATECh), Politecnico di Bari, Via Orabona 4, I-70125 Bari, Italy
| | - Alessandro Bagno
- Dipartimento
di Scienze Chimiche, Università di Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Vito Gallo
- Dipartimento
di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica
(DICATECh), Politecnico di Bari, Via Orabona 4, I-70125 Bari, Italy
| | - Mario Latronico
- Dipartimento
di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica
(DICATECh), Politecnico di Bari, Via Orabona 4, I-70125 Bari, Italy
- Consiglio
Nazionale delle Ricerche, Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Via Orabona 4, 70125 Bari, Italy
| | - Consuelo Fortuño
- Departamento
de Química Inorgánica, Instituto de Síntesis
Química y Catálisis Homogénea, Universidad de Zaragoza-C.S.I.C., E-50009 Zaragoza, Spain
| | - Dietrich Gudat
- Institut
für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring
55, 70569 Stuttgart, Germany
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5
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Electronic underpinnings of phosphido-bridged Pt3 clusters and the questioned stereochemistry of a uniquely reported 46e− species. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2014.09.040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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6
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Peng YD, Zhou LS, Chen LL, Ma L, Zhao Y, Zhang WW, Zuo JL. Ferrocene–isocoumarin conjugated molecules: synthesis, structural characterization, electronic properties, and DFT–TDDFT computational study. Dalton Trans 2015. [DOI: 10.1039/c5dt02169c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Two ferrocene–isocoumarin conjugated molecules, Fc-Icm and BFc-PIcm, have been synthesized through the acid-prompted regioselective oxidative cyclization. Their redox and electronic properties are in good agreement with the DFT and TDDFT calculations.
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Affiliation(s)
- Ye-Dong Peng
- Institute of Coordination Chemistry
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093, People's Republic of China
| | - Lin-Sen Zhou
- Institute of Theoretical and Computational Chemistry
- Key Laboratory of Mesoscopic Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093, People's Republic of China
| | - Li-Li Chen
- Institute of Coordination Chemistry
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093, People's Republic of China
| | - Lu Ma
- Institute of Coordination Chemistry
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093, People's Republic of China
| | - Yue Zhao
- Institute of Coordination Chemistry
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093, People's Republic of China
| | - Wen-Wei Zhang
- Institute of Coordination Chemistry
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093, People's Republic of China
| | - Jing-Lin Zuo
- Institute of Coordination Chemistry
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093, People's Republic of China
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7
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Vecchi A, Erickson NR, Sabin JR, Floris B, Conte V, Venanzi M, Galloni P, Nemykin VN. Electronic Properties of Mono-Substituted Tetraferrocenyl Porphyrins in Solution and on a Gold Surface: Assessment of the Influencing Factors for Photoelectrochemical Applications. Chemistry 2014; 21:269-79. [DOI: 10.1002/chem.201404457] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Indexed: 01/05/2023]
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8
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Maligaspe E, Hauwiller MR, Zatsikha YV, Hinke JA, Solntsev PV, Blank DA, Nemykin VN. Redox and Photoinduced Electron-Transfer Properties in Short Distance Organoboryl Ferrocene-Subphthalocyanine Dyads. Inorg Chem 2014; 53:9336-47. [DOI: 10.1021/ic5014544] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eranda Maligaspe
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States
| | - Matthew R. Hauwiller
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Yuriy V. Zatsikha
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska str., 02660 Kyiv, Ukraine
| | - Jonathan A. Hinke
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Pavlo V. Solntsev
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - David A. Blank
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Victor N. Nemykin
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States
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9
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Goetsch WR, Solntsev PV, Van Stappen C, Purchel AA, Dudkin SV, Nemykin VN. Electron-Transfer Processes in 3,4-Diferrocenylpyrroles: Insight into a Missing Piece of the Polyferrocenyl-Containing Pyrroles Family. Organometallics 2013. [DOI: 10.1021/om400901w] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Wil R. Goetsch
- Department of Chemistry and
Biochemistry, University of Minnesota Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States
| | - Pavlo V. Solntsev
- Department of Chemistry and
Biochemistry, University of Minnesota Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States
| | - Casey Van Stappen
- Department of Chemistry and
Biochemistry, University of Minnesota Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States
| | - Anatolii A. Purchel
- Department of Chemistry and
Biochemistry, University of Minnesota Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States
| | - Semen V. Dudkin
- Department of Chemistry and
Biochemistry, University of Minnesota Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States
| | - Victor N. Nemykin
- Department of Chemistry and
Biochemistry, University of Minnesota Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States
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10
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Spectroelectrochemistry: A valuable tool for the study of organometallic-alkyne, -vinylidene, -cumulene, -alkynyl and related complexes. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.01.143] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Nemykin VN, Purchel AA, Spaeth AD, Barybin MV. Probing the Electronic Properties of a Trinuclear Molecular Wire Involving Isocyanoferrocene and Iron(II) Phthalocyanine Motifs. Inorg Chem 2013; 52:11004-12. [DOI: 10.1021/ic4011423] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Victor N. Nemykin
- Department of Chemistry
and Biochemistry, University of Minnesota—Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States
| | - Anatolii A. Purchel
- Department of Chemistry
and Biochemistry, University of Minnesota—Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States
| | - Andrew D. Spaeth
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045, United States
| | - Mikhail V. Barybin
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045, United States
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12
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Dammer SJ, Solntsev PV, Sabin JR, Nemykin VN. Synthesis, Characterization, and Electron-Transfer Processes in Indium Ferrocenyl-Containing Porphyrins and Their Fullerene Adducts. Inorg Chem 2013; 52:9496-510. [DOI: 10.1021/ic401163y] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Samantha J. Dammer
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, 1039 University Drive,
Duluth, Minnesota 55812, United States
| | - Pavlo V. Solntsev
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, 1039 University Drive,
Duluth, Minnesota 55812, United States
| | - Jared R. Sabin
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, 1039 University Drive,
Duluth, Minnesota 55812, United States
| | - Victor N. Nemykin
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, 1039 University Drive,
Duluth, Minnesota 55812, United States
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13
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Bonuccelli V, Funaioli T, Leoni P, Marchetti F, Marchetti L. Synthesis and Spectroscopic and Spectroelectrochemical Characterization of a New Family of 44e– Tris-Phosphido-Bridged Palladium Triangles. Inorg Chem 2013; 52:8759-69. [DOI: 10.1021/ic4009448] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Veronica Bonuccelli
- Dipartimento di Chimica e Chimica Industriale dell’Università
di Pisa, Via Risorgimento 35, I-56126 Pisa, Italy
| | - Tiziana Funaioli
- Dipartimento di Chimica e Chimica Industriale dell’Università
di Pisa, Via Risorgimento 35, I-56126 Pisa, Italy
| | - Piero Leoni
- Dipartimento di Chimica e Chimica Industriale dell’Università
di Pisa, Via Risorgimento 35, I-56126 Pisa, Italy
| | - Fabio Marchetti
- Dipartimento di Chimica e Chimica Industriale dell’Università
di Pisa, Via Risorgimento 35, I-56126 Pisa, Italy
| | - Lorella Marchetti
- Dipartimento di Chimica e Chimica Industriale dell’Università
di Pisa, Via Risorgimento 35, I-56126 Pisa, Italy
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14
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Uahengo V, Zhou N, Xiong B, Cai P, Hu K, Cheng G. Synthesis and characterization of a new dinuclear platinum(II) alkynyl complex with a ferrocene bridge and its interaction with silver ion. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.02.009] [Citation(s) in RCA: 6] [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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15
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Funaioli T, Leoni P, Marchetti L, Albinati A, Rizzato S, Fabrizi de Biani F, Ienco A, Manca G, Mealli C. Unprecedented tris-phosphido-bridged triangular clusters with 42 valence electrons. Chemical, electrochemical and computational studies of their formation and stability. Inorg Chem 2013; 52:4635-47. [PMID: 23537366 DOI: 10.1021/ic400251y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This paper presents the synthesis and structural characterization of the unprecedented tris-phosphido-bridged compounds Pt3(μ-PBu(t)2)3X3 (X = Cl, Br, I), having only 42 valence electrons, while up to now analogous clusters typically have 44e(-). The new species were obtained by an apparent bielectronic oxidation of the 44e(-) monohalides Pt3(μ-PBu(t)2)3(CO)2X with the corresponding dihalogen X2. Their X-ray structures are close to the D3h symmetry, similarly to the 44e(-) analogues with three terminal carbonyl ligands. The products were also obtained by electrochemical oxidation of the same monohalides in the presence of the corresponding halide. In a detailed study on the formation of Pt3(μ-PBu(t)2)3I3, the redox potentials indicated that I2 can only perform the first monoelectronic oxidation but is unsuited for the second one. Accordingly, the 43e(-) intermediate [Pt3(μ-PBu(t)2)3(CO)2I](+) was ascertained to play a key role. Another piece of information is that, together with the fully oxidized product Pt3(μ-PBu(t)2)3I3, the transient 44e(-) species [Pt3(μ-PBu(t)2)3(CO)3](+) is formed in the early steps of the reaction. In order to extract detailed information on the formation pathway, involving both terminal ligand substitutions and electron transfer processes, a DFT investigation has been performed and all the possible intermediates have been defined together with their associated energy costs. The profile highlights many important aspects, such as the formation of an appropriate couple of 43e(-) intermediates having different sets of terminal coligands, and suitable redox potentials for the transfer of one electron. Optimizations of 45e(-) associative intermediates in the ligand substitution reactions indicate their possible involvement in the redox process with reduction of the overall energy cost. Finally, according to MO arguments, the unique stability of the 42e(-) phosphido-bridged Pt3 clusters can be attributed to the simultaneous presence of three terminal halides.
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Affiliation(s)
- Tiziana Funaioli
- Dipartimento di Chimica e Chimica Industriale dell'Università di Pisa, Via Risorgimento 35, I-56126 Pisa, Italy
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16
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Bonuccelli V, Funaioli T, Leoni P, Marchetti L, Zacchini S. Bridging molecular clusters and fullerene. Dalton Trans 2013; 42:16898-908. [DOI: 10.1039/c3dt52055b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Veronica Bonuccelli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Risorgimento 35, I-56126 Pisa, Italy.
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17
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Solntsev PV, Spurgin KL, Sabin JR, Heikal AA, Nemykin VN. Photoinduced charge transfer in short-distance ferrocenylsubphthalocyanine dyads. Inorg Chem 2012; 51:6537-47. [PMID: 22651219 DOI: 10.1021/ic3000608] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Two new ferrocenylsubphthalocyanine dyads with ferrocenylmethoxide (2) and ferrocenecarboxylate (3) substituents directly attached to the subphthalocyanine ligand via the axial position have been prepared and characterized using NMR, UV-vis, and magnetic circular dichroism (MCD) spectroscopies as well as X-ray crystallography. The redox properties of the ferrocenyl-containing dyads 2 and 3 were investigated using the cyclic voltammetry (CV) approach and compared to those of the parent subphthalocyanine 1. CV data reveal that the first reversible oxidation is ferrocene-centered, while the second oxidation and the first reduction are localized on the subphthalocyanine ligand. The electronic structures and nature of the optical bands observed in the UV-vis and MCD spectra of all target compounds were investigated by a density functional theory polarized continuum model (DFT-PCM) and time-dependent (TD)DFT-PCM approaches. It has been found that in both dyads the highest occupied molecular orbital (HOMO) to HOMO-2 are ferrocene-centered molecular orbitals, while HOMO-3 as well as lowest unoccupied molecular orbital (LUMO) and LUMO+1 are localized on the subphthalocyanine ligand. TDDFT-PCM data on complexes 1-3 are consistent with the experimental observations, which indicate the dominance of π-π* transitions in the UV-vis spectra of 1-3. The excited-state dynamics of the dyads 2 and 3 were investigated using time-correlated single photon counting, which indicates that fluorescence quenching is more efficient in dyad 3 compared to dyad 2. These fluorescence lifetime measurements were interpreted on the basis of DFT-PCM calculations.
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Affiliation(s)
- Pavlo V Solntsev
- Department of Chemistry and Biochemistry, University of Minnesota-Duluth, 1039 University Drive, Duluth, Minnesota 55812, USA
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18
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Solntsev PV, Dudkin SV, Sabin JR, Nemykin VN. Electronic Communications in (Z)-Bis(ferrocenyl)ethylenes with Electron-Withdrawing Substituents. Organometallics 2011. [DOI: 10.1021/om2001266] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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19
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Boyd DA, Cao Z, Song Y, Wang TW, Fanwick PE, Crutchley RJ, Ren T. Diruthenium compounds bearing equatorial fc-containing ligands: synthesis and electronic structure. Inorg Chem 2010; 49:11525-31. [PMID: 21070020 DOI: 10.1021/ic101628z] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Previously, the synthesis of compounds Ru(2)(D(3,5-Cl(2)Ph)F)(4-n)(O(2)CFc)(n)Cl (n = 1, 3a; 2, 4a), where D(3,5-Cl(2)Ph)F is N,N'-di(3,5-dichlorophenyl)formamidinate, from the carboxylate exchange reactions between Ru(2)(D(3,5-Cl(2)Ph)F)(4-n)(OAc)(n)Cl and ferrocene carboxylic acid was communicated. Reported herein is the preparation of analogous compounds Ru(2)(DmAniF)(4-n)(O(2)CFc)(n)Cl (n = 1, 3b; 2, 4b), where DmAniF is N,N'-di(3-methoxyphenyl)formamidinate, from Ru(2)(DmAniF)(4-n)(OAc)(n)Cl. Compounds 3 and 4 were characterized with various techniques including X-ray structural determinations of 3a and 4a. Voltammetric behaviors of compounds 3 and 4 were investigated, and stepwise one-electron ferrocene oxidations were observed for both compounds 4a and 4b. Spectral analysis of the monocations [4](+) indicated that they are the Robin-Day class II mixed valent [Fc···Fc](+) species. Measurement and fitting of magnetic data (χT) of 4a between 2 and 300 K revealed a typical zero-field splitting of a S = 3/2 center with D = 77 cm(-1), while those of [4a]BF(4) are consistent with the presence of S = 3/2 (Ru(2)) and S = 1/2 (Fc(+)) centers that are weakly coupled (zJ = -0.76 cm(-1)).
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Affiliation(s)
- Darryl A Boyd
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
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20
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Díez A, Fernández J, Lalinde E, Moreno MT, Sánchez S. High-nuclearity Pt-Tl-Fe complexes: structural, electrochemistry, and spectroelectrochemistry studies. Inorg Chem 2010; 49:11606-18. [PMID: 21082856 DOI: 10.1021/ic102000s] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of heteropolynuclear Pt-Tl-Fe complexes have been synthesized and structurally characterized. The final structures strongly depend on the geometry of the precursor and the Pt/Tl ratio used. Thus, the anionic heteroleptic cis-configured [cis-Pt(C(6)F(5))(2)(C≡CFc)(2)](2-) and [Pt(bzq)(C≡CFc)(2)](-) (Fc = ferrocenyl) complexes react with Tl(+) to form discrete octanuclear (PPh(3)Me)(2)[{trans,cis,cis-PtTl(C(6)F(5))(2)(C≡CFc)(2)}(2)] (1), [PtTl(bzq)(C≡CFc)(2)](2) (5; bzq = benzoquinolate), and decanuclear [trans,cis,cis-PtTl(2)(C(6)F(5))(2)(C≡CFc)(2)](2) (3) derivatives, stabilized by both Pt(II)···Tl(I) and Tl(I)···η(2)(alkynyl) bonds. By contrast, Q(2)[trans-Pt(C(6)F(5))(2)(C≡CFc)(2)] (Q = NBu(4)) reacts with Tl(+) to give the one-dimensional (1-D) anionic [(NBu(4)){trans,trans,trans-PtTl(C(6)F(5))(2)(C≡CFc)(2)}](n) (2) and neutral [trans,trans,trans-PtTl(2)(C(6)F(5))(2)(C≡CFc)(2)](n) (4) polymeric chains based on [PtFc(2)](2-) platinate fragments and Tl(+) (2) or [Tl···Tl](2+) (4) units, respectively, connected by Pt(II)···Tl(I) and secondary weak κ-η(1) (2) or η(2) (4) alkynyl···Tl(I) bonding. The formation of 1-4 is reversible, and thus treatment of neutral 3 and 4 with PPh(3)MeBr causes the precipitation of TlBr, returning toward the formation of the anionic 1 and 2' (Q = PPh(3)Me). Two slightly different pseudopolymorphs were found for 2', depending on the crystallization solvent. Finally, the reaction of the homoleptic [Pt(C≡CFc)(4)](2-) with 2 equiv of Tl(+) affords the tetradecanuclear sandwich type complex [Pt(2)Tl(4)(C≡CFc)(8)] (6). Electrochemical, spectroelectrochemical, and theoretical studies have been carried out to elucidate the effect produced by the interaction of the Tl(+) with the Pt-C≡CFc fragments. The cyclic voltammetry (CV) and differential pulse voltammetry (DPV) of 1-5 reveal that, in general, neutralization of the anionic fragments increases the stability of the fully oxidized species and gives higher E(1/2) (Fc) values than those observed in their precursors, increasing with the number of Pt-Tl bonding interactions. However, the electronic communication between Fc groups is reduced or even lost upon Tl(+) coordination, as confirmed by electrochemical (CVs and DPVs voltammograms, 1-5) and spectroelectrochemical (UV-vis-NIR, 2-4) studies. Complexes 2 and 4 still display some electronic interaction between the Fc groups, supported by the presence of an IVCT band in their UV-vis-NIR spectra of oxidized species and additional comparative DFT calculations with the precursor [trans-Pt(C(6)F(5))(2)(C≡CFc)(2)](2-) and complex 3.
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Affiliation(s)
- Alvaro Díez
- Departamento de Química--Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006, Logroño, Spain
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Abstract
The scope of organometallics has recently been expanded considerably, when researchers have started to employ these compounds in the context of materials chemistry. Traditionally, organometallic complexes have been and continue to be important tools for many (catalytic) chemical transformations. This perspective highlights how metal-rich organometallics, that is compounds with more than one type of metal, can play an important role in the advancement of new value-added functional materials.
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Affiliation(s)
- Robin A Krüger
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada
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Leoni P, Marchetti L, Bonuccelli V, Mohapatra S, Albinati A, Rizzato S. Proton-Transfer Reactions on Hexanuclear Platinum Clusters: Reversible Heterolytic Cleavage of H2 and CH Activation Affording a Linear, Cluster-Containing Polymer. Chemistry 2010; 16:9468-77. [DOI: 10.1002/chem.201000809] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Albinati A, Balzano F, Fabrizi de Biani F, Leoni P, Manca G, Marchetti L, Rizzato S, Uccello Barretta G, Zanello P. Synthesis, Structure, and Electrochemistry of the Dicluster Molecular Pincer [Pt3(μ-PBut2)3(CO)2]2(μ-1′,1′′′-diethynylbiferrocene). Inorg Chem 2010; 49:3714-20. [DOI: 10.1021/ic9014459] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alberto Albinati
- Dipartimento di Chimica Strutturale e Stereochimica Inorganica, Università di Milano, Via Venezian 21,I-20133 Milano, Italy
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