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Shieh M, Liu YH, Li YH, Lin RY. Metal carbonyl cluster-based coordination polymers: diverse syntheses, versatile network structures, and special properties. CrystEngComm 2019. [DOI: 10.1039/c9ce01539f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This highlight surveys recent progress in groups 6–10 metal carbonyl cluster-based coordination polymers, focusing on diverse synthetic strategies, versatile structures, structural transformations, and semiconducting as well as magnetic properties.
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Affiliation(s)
- Minghuey Shieh
- Department of Chemistry
- National Taiwan Normal University
- Taipei 11677
- Republic of China
| | - Yu-Hsin Liu
- Department of Chemistry
- National Taiwan Normal University
- Taipei 11677
- Republic of China
| | - Yu-Huei Li
- Department of Chemistry
- National Taiwan Normal University
- Taipei 11677
- Republic of China
| | - Ru Yan Lin
- Department of Chemistry
- National Taiwan Normal University
- Taipei 11677
- Republic of China
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2
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Abstract
Transition metal hydride complexes are usually amphoteric, not only acting as hydride donors, but also as Brønsted-Lowry acids. A simple additive ligand acidity constant equation (LAC for short) allows the estimation of the acid dissociation constant Ka(LAC) of diamagnetic transition metal hydride and dihydrogen complexes. It is remarkably successful in systematizing diverse reports of over 450 reactions of acids with metal complexes and bases with metal hydrides and dihydrogen complexes, including catalytic cycles where these reactions are proposed or observed. There are links between pKa(LAC) and pKa(THF), pKa(DCM), pKa(MeCN) for neutral and cationic acids. For the groups from chromium to nickel, tables are provided that order the acidity of metal hydride and dihydrogen complexes from most acidic (pKa(LAC) -18) to least acidic (pKa(LAC) 50). Figures are constructed showing metal acids above the solvent pKa scales and organic acids below to summarize a large amount of information. Acid-base features are analyzed for catalysts from chromium to gold for ionic hydrogenations, bifunctional catalysts for hydrogen oxidation and evolution electrocatalysis, H/D exchange, olefin hydrogenation and isomerization, hydrogenation of ketones, aldehydes, imines, and carbon dioxide, hydrogenases and their model complexes, and palladium catalysts with hydride intermediates.
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Affiliation(s)
- Robert H Morris
- Department of Chemistry, University of Toronto , 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
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3
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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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4
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Miao WK, Yan YK, Wang XL, Xiao Y, Ren LJ, Zheng P, Wang CH, Ren LX, Wang W. Incorporation of Polyoxometalates into Polymers to Create Linear Poly(polyoxometalate)s with Catalytic Function. ACS Macro Lett 2014; 3:211-215. [PMID: 35590507 DOI: 10.1021/mz5000202] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Organic polymers have been found widespread commercial applications due to their easy processing and attractive mechanical properties. Concurrently, inorganic polyoxometalates (POMs), a class of metal-oxygen anionic and nanosized clusters of early transition metals, have a wide range of attractive functions and are used in industrial catalysis. In this communication, we report a new approach to creating the first linear poly(polyoxometalate)s that combine the advantages of polymers and POM clusters. In the experiment, a POM-containing norbornene monomer was first synthesized by linking a Wells-Dawson-type POM with a norbornene derivative. The monomer was polymerized in the presence of a Grubbs catalyst under mild conditions with yields nearly 100% in a living and controllable manner. The resulting poly(polyoxometalate)s have controllable molecular weights and a well-defined hybrid structure of an organic polynorbornene backbone with large pendant groups of the nanosized POM clusters. Thus, they form good films and have a good catalytic performance. Our findings not only pave the way for incorporating the POM clusters into polymers with well-defined structures and high molecular weights, but also offer a competitive strategy for developing more novel catalytic systems by introducing the poly(polyoxometalate)s.
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Affiliation(s)
- Wen-Ke Miao
- Center
for Synthetic Soft Materials, Key Laboratory of Functional Polymer
Materials of the Ministry of Education, Institute of Polymer Chemistry, Nankai University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China
| | - Yu-Kun Yan
- Center
for Synthetic Soft Materials, Key Laboratory of Functional Polymer
Materials of the Ministry of Education, Institute of Polymer Chemistry, Nankai University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China
| | - Xiao-Le Wang
- Center
for Synthetic Soft Materials, Key Laboratory of Functional Polymer
Materials of the Ministry of Education, Institute of Polymer Chemistry, Nankai University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China
| | - Yu Xiao
- Center
for Synthetic Soft Materials, Key Laboratory of Functional Polymer
Materials of the Ministry of Education, Institute of Polymer Chemistry, Nankai University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China
| | - Li-Jun Ren
- Center
for Synthetic Soft Materials, Key Laboratory of Functional Polymer
Materials of the Ministry of Education, Institute of Polymer Chemistry, Nankai University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China
| | - Ping Zheng
- Center
for Synthetic Soft Materials, Key Laboratory of Functional Polymer
Materials of the Ministry of Education, Institute of Polymer Chemistry, Nankai University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China
| | - Chun-Hong Wang
- Center
for Synthetic Soft Materials, Key Laboratory of Functional Polymer
Materials of the Ministry of Education, Institute of Polymer Chemistry, Nankai University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China
| | - Li-Xia Ren
- School
of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Wei Wang
- Center
for Synthetic Soft Materials, Key Laboratory of Functional Polymer
Materials of the Ministry of Education, Institute of Polymer Chemistry, Nankai University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China
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5
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Lin CN, Jhu WT, Shieh M. Vapochemically and mechanochemically reversible polymerization/depolymerization of S-Fe-Cu carbonyl clusters. Chem Commun (Camb) 2014; 50:1134-6. [PMID: 24322828 DOI: 10.1039/c3cc48303g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A reversible vapochemical and mechanochemical solid-state transformation between a dppe-linked SFe3Cu2-based cluster [{(μ3-S)Fe3(CO)9}Cu2(dppe)] (2) and its 1D polymer [{(μ4-S)Fe3(CO)9}Cu2(dppe)(MeCN)2]n (3) was demonstrated, in which polymer 3 exhibited semi-conducting properties with an energy gap of 1.69 eV.
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Affiliation(s)
- Chien-Nan Lin
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan, Republic of China.
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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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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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8
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Anselmi M, Bonuccelli V, Funaioli T, Leoni P, Marchetti F, Marchetti L, Mohapatra SK, Pasquali M. Synthesis and electrochemical characterization of hexanuclear platinum bis-pseudohalides. Dalton Trans 2013; 42:10855-66. [DOI: 10.1039/c3dt50714a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Martina Anselmi
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Risorgimento 35, I-56126 Pisa, Italy
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