1
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Sarkar S, Shah Tuglak Khan F, Guchhait T, Rath SP. Binuclear complexes with single M-F-M bridge (M: Fe, Mn, and Cu): A critical analysis of the impact of fluoride for isoelectronic hydroxide substitution. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.215003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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2
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Munasinghe HN, Imer MR, Szlag RG, Suescun L, Rabuffetti FA. Reactivity of bi- and monometallic trifluoroacetates towards amorphous SiO 2. Dalton Trans 2022; 51:18224-18233. [PMID: 36399009 PMCID: PMC9794385 DOI: 10.1039/d2dt02822k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The reactivity of alkali-manganese(II) and alkali trifluoroacetates towards amorphous SiO2 (a-SiO2) was studied in the solid-state. K4Mn2(tfa)8, Cs3Mn2(tfa)7(tfaH), KH(tfa)2, and CsH(tfa)2 (tfa = CF3COO-) were thermally decomposed under vacuum in fused quartz tubes. Three new bimetallic fluorotrifluoroacetates of formulas K4Mn3(tfa)9F, Cs4Mn3(tfa)9F, and K2Mn(tfa)3F were discovered upon thermolysis at 175 °C. K4Mn3(tfa)9F and Cs4Mn3(tfa)9F feature a triangular-bridged metal cluster of formula [Mn3(μ3-F)(μ2-tfa)6(tfa)3]4-. In the case of K2Mn(tfa)3F, fluoride serves as an inverse coordination center for the tetrahedral metal cluster K2Mn2(μ4-F). Fluorotrifluoroacetates may be regarded as intermediates in the transformation of bimetallic trifluoroacetates to fluoroperovskites KMnF3, CsMnF3, and Cs2MnF4, which crystallized between 250 and 600 °C. Decomposition of these trifluoroacetates also yielded alkali hexafluorosilicates K2SiF6 and Cs2SiF6 as a result of the fluorination of fused quartz. The ability to fluorinate fused quartz was observed for monometallic alkali trifluoroacetates as well. Hexafluorosilicates and heptafluorosilicates K3SiF7 and Cs3SiF7 were obtained upon thermolysis of KH(tfa)2 and CsH(tfa)2 between 200 and 400 °C. This ability was exploited to synthesize fluorosilicates under air by simply reacting alkali trifluoroacetates with a-SiO2 powder.
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Affiliation(s)
| | - Marcos R Imer
- Department of Chemistry, Wayne State University, Detroit, MI 48202, USA.
| | - Regina G Szlag
- Department of Chemistry, Wayne State University, Detroit, MI 48202, USA.
| | - Leopoldo Suescun
- Cryssmat-Lab/DETEMA, Facultad de Química, Universidad de la República, Montevideo 11800, Uruguay
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3
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Oxalato as polyatomic coordination center and magnetic coupler in copper(II)-polypyrazole inverse polynuclear complexes and coordination polymers. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214730] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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4
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Gribanyov DA, Tugashov KI, Dolgushin FM, Peregudov AS, Kabaeva NM, Tikhonova IA, Shur VB. Anionic Complexes of the Perfluorinated Three‐Mercury Anticrown (
o,o’
‐C
6
F
4
C
6
F
4
Hg)
3
. Dependence of the Anion Coordination Type on Counter‐Cation in Case of Chloride and Bromide Anions. ChemistrySelect 2022. [DOI: 10.1002/slct.202200445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Dmitry A. Gribanyov
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilov Street 28 119991 Moscow Russia
| | - Kirill I. Tugashov
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilov Street 28 119991 Moscow Russia
| | - Fedor M. Dolgushin
- N.S. Kurnakov Institute of General and Inorganic Chemistry Russian Academy of Sciences Leninskii Avenue 31 119071 Moscow Russia
| | - Alexander S. Peregudov
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilov Street 28 119991 Moscow Russia
| | - Nina M. Kabaeva
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilov Street 28 119991 Moscow Russia
| | - Irina A. Tikhonova
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilov Street 28 119991 Moscow Russia
| | - Vladimir B. Shur
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Vavilov Street 28 119991 Moscow Russia
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5
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Rabelo R, Castellano M, Barros WP, Carbonell-Vilar JM, Viciano-Chumillas M, Lloret F, Julve M, Pasán J, Cañadillas-Delgado L, Ruiz-García R, Cano J. Molecular engineering of an inverse hexacopper(II) coordination complex with a photoactive metallacyclophane centroligand as prototype of a magnetic photoswitch†. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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6
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Zhong YJ, Liao JH, Chiu TH, Wen YS, Liu CW. A New Synthetic Methodology in the Preparation of Bimetallic Chalcogenide Clusters via Cluster-to-Cluster Transformations. Molecules 2021; 26:molecules26175391. [PMID: 34500825 PMCID: PMC8433971 DOI: 10.3390/molecules26175391] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 08/28/2021] [Accepted: 09/03/2021] [Indexed: 11/16/2022] Open
Abstract
A decanuclear silver chalcogenide cluster, [Ag10(Se){Se2P(OiPr)2}8] (2) was isolated from a hydride-encapsulated silver diisopropyl diselenophosphates, [Ag7(H){Se2P(OiPr)2}6], under thermal condition. The time-dependent NMR spectroscopy showed that 2 was generated at the first three hours and the hydrido silver cluster was completely consumed after thirty-six hours. This method illustrated as cluster-to-cluster transformations can be applied to prepare selenide-centered decanuclear bimetallic clusters, [CuxAg10-x(Se){Se2P(OiPr)2}8] (x = 0-7, 3), via heating [CuxAg7-x(H){Se2P(OiPr)2}6] (x = 1-6) at 60 °C. Compositions of 3 were accurately confirmed by the ESI mass spectrometry. While the crystal 2 revealed two un-identical [Ag10(Se){Se2P(OiPr)2}8] structures in the asymmetric unit, a co-crystal of [Cu3Ag7(Se){Se2P(OiPr)2}8]0.6[Cu4Ag6(Se){Se2P(OiPr)2}8]0.4 ([3a]0.6[3b]0.4) was eventually characterized by single-crystal X-ray diffraction. Even though compositions of 2, [3a]0.6[3b]0.4 and the previous published [Ag10(Se){Se2P(OEt)2}8] (1) are quite similar (10 metals, 1 Se2-, 8 ligands), their metal core arrangements are completely different. These results show that different synthetic methods by using different starting reagents can affect the structure of the resulting products, leading to polymorphism.
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Affiliation(s)
- Yu-Jie Zhong
- Department of Chemistry, National Dong Hwa University, Hualien 974301, Taiwan; (Y.-J.Z.); (J.-H.L.); (T.-H.C.)
| | - Jian-Hong Liao
- Department of Chemistry, National Dong Hwa University, Hualien 974301, Taiwan; (Y.-J.Z.); (J.-H.L.); (T.-H.C.)
| | - Tzu-Hao Chiu
- Department of Chemistry, National Dong Hwa University, Hualien 974301, Taiwan; (Y.-J.Z.); (J.-H.L.); (T.-H.C.)
| | - Yuh-Sheng Wen
- Institute of Chemistry, Academia Sinica, Taipei 11528, Taiwan;
| | - C. W. Liu
- Department of Chemistry, National Dong Hwa University, Hualien 974301, Taiwan; (Y.-J.Z.); (J.-H.L.); (T.-H.C.)
- Correspondence: ; Tel.: +886-3-890-3607
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Al Isawi WA, Mezei G. Doubling the Carbonate-Binding Capacity of Nanojars by the Formation of Expanded Nanojars. Molecules 2021; 26:3083. [PMID: 34064130 PMCID: PMC8196769 DOI: 10.3390/molecules26113083] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/12/2021] [Accepted: 05/19/2021] [Indexed: 11/16/2022] Open
Abstract
Anion binding and extraction from solutions is currently a dynamic research topic in the field of supramolecular chemistry. A particularly challenging task is the extraction of anions with large hydration energies, such as the carbonate ion. Carbonate-binding complexes are also receiving increased interest due to their relevance to atmospheric CO2 fixation. Nanojars are a class of self-assembled, supramolecular coordination complexes that have been shown to bind highly hydrophilic anions and to extract even the most hydrophilic ones, including carbonate, from water into aliphatic solvents. Here we present an expanded nanojar that is able to bind two carbonate ions, thus doubling the previously reported carbonate-binding capacity of nanojars. The new nanojar is characterized by detailed single-crystal X-ray crystallographic studies in the solid state and electrospray ionization mass spectrometric (including tandem MS/MS) studies in solution.
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Affiliation(s)
| | - Gellert Mezei
- Department of Chemistry, Western Michigan University, Kalamazoo, MI 49008, USA;
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Castro I, Calatayud ML, Orts-Arroyo M, Moliner N, Marino N, Lloret F, Ruiz-García R, Munno GD, Julve M. Ferro- and Antiferromagnetic Interactions in Oxalato-Centered Inverse Hexanuclear and Chain Copper(II) Complexes with Pyrazole Derivatives. Molecules 2021; 26:molecules26092792. [PMID: 34068482 PMCID: PMC8126003 DOI: 10.3390/molecules26092792] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 05/05/2021] [Accepted: 05/05/2021] [Indexed: 11/16/2022] Open
Abstract
Two novel copper(II) complexes of formulas {[Cu(4-Hmpz)4][Cu(4-Hmpz)2(µ3-ox-κ2O1,O2:κO2':κO1')(ClO4)2]}n (1) and {[Cu(3,4,5-Htmpz)4]2[Cu(3,4,5-Htmpz)2(µ3-ox-κ2O1,O2:κO2':κO1')(H2O)(ClO4)]2[Cu2(3,4,5-Htmpz)4(µ-ox-κ2O1,O2:κ2O2',O1')]}(ClO4)4·6H2O (2) have been obtained by using 4-methyl-1H-pyrazole (4-Hmpz) and 3,4,5-trimethyl-1H-pyrazole (3,4,5-Htmpz) as terminal ligands and oxalate (ox) as the polyatomic inverse coordination center. The crystal structure of 1 consists of perchlorate counteranions and cationic copper(II) chains with alternating bis(pyrazole)(µ3-κ2O1,O2:κO2':κO1'-oxalato)copper(II) and tetrakis(pyrazole)copper(II) fragments. The crystal structure of 2 is made up of perchlorate counteranions and cationic centrosymmetric hexanuclear complexes where an inner tetrakis(pyrazole)(µ-κ2O1,O2:κ2O2',O1'-oxalato)dicopper(II) entity and two outer mononuclear tetrakis(pyrazole)copper(II) units are linked through two mononuclear aquabis(pyrazole)(µ3-κ2O1,O2:κO2':κO1'-oxalato)copper(II) units. The magnetic properties of 1 and 2 were investigated in the temperature range 2.0-300 K. Very weak intrachain antiferromagnetic interactions between the copper(II) ions through the µ3-ox-κ2O1,O2:κO2':κO1' center occur in 1 [J = -0.42(1) cm-1, the spin Hamiltonian being defined as H = -J∑S1,i · S2,i+1], whereas very weak intramolecular ferromagnetic [J = +0.28(2) cm-1] and strong antiferromagnetic [J' = -348(2) cm-1] couplings coexist in 2 which are mediated by the µ3-ox-κ2O1,O2:κO2':κO1' and µ-ox-κ2O1,O2:κ2O2',O1' centers, respectively. The variation in the nature and magnitude of the magnetic coupling for this pair of oxalato-centered inverse copper(II) complexes is discussed in the light of their different structural features, and a comparison with related oxalato-centered inverse copper(II)-pyrazole systems from the literature is carried out.
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Affiliation(s)
- Isabel Castro
- Instituto de Ciencia Molecular (ICMol), Universitat de València, 46980 Paterna, Spain; (M.L.C.); (M.O.-A.); (N.M.); (F.L.); (R.R.-G.)
- Correspondence: (I.C.); (N.M.); (G.D.M.); (M.J.)
| | - M. Luisa Calatayud
- Instituto de Ciencia Molecular (ICMol), Universitat de València, 46980 Paterna, Spain; (M.L.C.); (M.O.-A.); (N.M.); (F.L.); (R.R.-G.)
| | - Marta Orts-Arroyo
- Instituto de Ciencia Molecular (ICMol), Universitat de València, 46980 Paterna, Spain; (M.L.C.); (M.O.-A.); (N.M.); (F.L.); (R.R.-G.)
| | - Nicolás Moliner
- Instituto de Ciencia Molecular (ICMol), Universitat de València, 46980 Paterna, Spain; (M.L.C.); (M.O.-A.); (N.M.); (F.L.); (R.R.-G.)
| | - Nadia Marino
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Rende, Italy
- Correspondence: (I.C.); (N.M.); (G.D.M.); (M.J.)
| | - Francesc Lloret
- Instituto de Ciencia Molecular (ICMol), Universitat de València, 46980 Paterna, Spain; (M.L.C.); (M.O.-A.); (N.M.); (F.L.); (R.R.-G.)
| | - Rafael Ruiz-García
- Instituto de Ciencia Molecular (ICMol), Universitat de València, 46980 Paterna, Spain; (M.L.C.); (M.O.-A.); (N.M.); (F.L.); (R.R.-G.)
| | - Giovanni De Munno
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Rende, Italy
- Correspondence: (I.C.); (N.M.); (G.D.M.); (M.J.)
| | - Miguel Julve
- Instituto de Ciencia Molecular (ICMol), Universitat de València, 46980 Paterna, Spain; (M.L.C.); (M.O.-A.); (N.M.); (F.L.); (R.R.-G.)
- Correspondence: (I.C.); (N.M.); (G.D.M.); (M.J.)
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Shieh M, Li YH, Lin CH, Sun TY. Low-Valent, Multiply Bonded, Trigonal-Planar Sb Complex: Rational Syntheses, Dual Acidic/Basic Properties, and Unexpected Semiconducting Characteristics. Inorg Chem 2020; 59:16073-16089. [PMID: 33079536 DOI: 10.1021/acs.inorgchem.0c02820] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A 4-center, 6π-conjugated, multiply bonded trigonal-planar complex, [Sb{Cr(CO)5}3]- (1), was synthesized via the hydride abstraction of [HSb{Cr(CO)5}3]2- (1-H) with HBF4·H2O, with the release of high yields of H2. The oxidation state of the Sb atom in [Et4N][1] was well-defined as 0, which was evidenced by X-ray photoelectron spectroscopy and X-ray absorption near-edge structure. The distinct color-structure relationship of this low-valent Sb complex 1 toward a wide range of organic solvents was demonstrated, as interpreted by time-dependent density functional theory calculations, allowing the trigonal-planar 1 and the tetrahedral solvent adducts to be probed, revealing the dual acid/base properties of the Sb center. In addition, 1 showed pronounced electrophilicity toward anionic and neutral nucleophiles, even with solvent molecules, to produce tetrahedral complexes [(Nu)Sb{Cr(CO)5}3]n- [1-Nu; n = 2, Nu = H, F, Cl, Br, I, OH; n = 1, Nu = PEt3, PPh3, N,N-dimethylformamide (DMF), acetonitrile (MeCN)]. On the contrary, the Fe/Cr hydride complex [HSb{Fe(CO)4}{Cr(CO)5}2]2- (2-H) was obtained by treating 1 with [HFe(CO)4]-. Upon hydride abstraction of 2-H with HBF4·H2O or [CPh3][BF4], a multiply bonded Fe/Cr trigonal-planar complex, [Sb{Fe(CO)4}{Cr(CO)5}2]- (2), was produced in which the oxidation coupling Sb2-containing complexes [Sb2Cr4Fe2(CO)28]2- (3-Cr) and [HSb2Cr3Fe2(CO)23]- (3-H) were yielded as final products. Complex 3-Cr exhibited dual Lewis acid/base properties via hydridation and protonation reactions, to form 2-H or 3-H, respectively. Surprisingly, [Et4N][1] possessed a low energy gap of 1.13 eV with an electrical conductivity in the range of (1.10-2.77) × 10-6 S·cm-1, showing that [Et4N][1] was a low-energy-gap semiconductor. The crystal packing, crystal indexing, and density of states results of [Et4N][1] further confirmed the efficient through-space conduction pathway via the intermolecular Sb···O(carbonyl) and O(carbonyl)···O(carbonyl) interactions of the 1D anionic zigzag chain of 1.
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Affiliation(s)
- Minghuey Shieh
- Department of Chemistry, National Taiwan Normal University (NTNU), Taipei 116325, Taiwan, Republic of China
| | - Yu-Huei Li
- Department of Chemistry, National Taiwan Normal University (NTNU), Taipei 116325, Taiwan, Republic of China
| | - Chia-Hsien Lin
- Department of Chemistry, National Taiwan Normal University (NTNU), Taipei 116325, Taiwan, Republic of China
| | - Tzu-Yen Sun
- Department of Chemistry, National Taiwan Normal University (NTNU), Taipei 116325, Taiwan, Republic of China
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Haiduc I. Inverse coordination metal complexes with oxalate and sulfur, selenium and nitrogen analogues as coordination centers. Topology and systematization. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1789120] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Ionel Haiduc
- Facultatea de Chimie, Universitatea Babeş-Bolyai, Cluj-Napoca, Romania
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Brocha Silalahi RP, Huang GR, Liao JH, Chiu TH, Chakrahari KK, Wang X, Cartron J, Kahlal S, Saillard JY, Liu CW. Copper Clusters Containing Hydrides in Trigonal Pyramidal Geometry. Inorg Chem 2020; 59:2536-2547. [DOI: 10.1021/acs.inorgchem.9b03501] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rhone P. Brocha Silalahi
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd, Shoufeng, Hualien 97401, Taiwan, R.O.C
| | - Guan-Rong Huang
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd, Shoufeng, Hualien 97401, Taiwan, R.O.C
| | - Jian-Hong Liao
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd, Shoufeng, Hualien 97401, Taiwan, R.O.C
| | - Tzu-Hao Chiu
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd, Shoufeng, Hualien 97401, Taiwan, R.O.C
| | | | - Xiaoping Wang
- Neutron Scattering Division, Neutron Sciences Directorate Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Julien Cartron
- Univ. Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | - Samia Kahlal
- Univ. Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | | | - C. W. Liu
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd, Shoufeng, Hualien 97401, Taiwan, R.O.C
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Qin Z, Zhao L, Li Z, Tian S, Xiao Q, Deng Y, Zhang J, Li G, Wan C. Supramolecular topology design of silver(i) and copper(ii) coordination polymers through a new semi-rigid sulfonyl ligand with different anion templates. Dalton Trans 2019; 48:6730-6737. [PMID: 30964489 DOI: 10.1039/c9dt00257j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of metal organic coordination polymers (MOCPs) of silver(i) and copper(ii) coordinated with a novel multifunctional semi-rigid sulfonyl ligand with different anion templates and oxidation states were designed for the first time. In addition, their atomically precise molecular structure was determined by single crystal X-ray diffraction analysis. In comparison, the topology of silver(i)-based MOCPs is affected significantly by different anion templates. The coordination modes are quite different with the anions varying: linear for ClO4-, trilateral for CO2CF3-, and tetrahedral for CO2C2F5-. Due to the difference of electron configurations between Ag(i) and Cu(ii), the coordinated configuration of the metal center is also different. While the coordinated configuration of Cu(ii) center tends to be placed in an octahedron. Furthermore, for the copper(ii) MOCPs, the oxidation state of the L ligand also plays an important role. When the N atoms in L were oxidized, the coordination mode of Cu(ii) became tetrahedral with Cu(ii) stuck on the bottom of the conventional octahedral mode. In general, it is an effective and controllable strategy to mediate the coordination mode and aggregation of supramolecular assembly-based MOCPs through the combination of a multifunctional organic ligand and its corresponding oxidation state design; elaborate metallic species and electron configuration selection; and suitable anion template introduction to generate multiform and hierarchical non-covalent bond interactions including π-π interactions and hydrogen bond formation that afford their coordination mode diversity.
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Affiliation(s)
- Zhaoxian Qin
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, P.R. China.
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Chakrahari KK, Silalahi RPB, Liao JH, Kahlal S, Liu YC, Lee JF, Chiang MH, Saillard JY, Liu CW. Synthesis and structural characterization of inverse-coordination clusters from a two-electron superatomic copper nanocluster. Chem Sci 2018; 9:6785-6795. [PMID: 30310611 PMCID: PMC6115619 DOI: 10.1039/c8sc01508b] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 06/30/2018] [Indexed: 11/21/2022] Open
Abstract
We have synthesized and structurally characterized a series of centred cuboctahedral copper clusters, namely [Cu13{S2CNR2}6{C[triple bond, length as m-dash]CR'}4](PF6), 1a-d (where a: R = n Bu, R' = CO2Me; b: R = n Bu, R' = CO2Et; c: R = iPr, R' = CO2Et; d: R = n Pr, R' = 3,5-(CF3)2C6H3); [Cu12(μ12-S){S2CNR2}6{C[triple bond, length as m-dash]CR'}4], 2a-c; [Cu12(μ12-Cl){S2CNR2}6{C[triple bond, length as m-dash]CR'}4](PF6), 3a-e (where e: R = n Bu, R' = Ph); [Cu12(μ12-Br){S2CN n Bu2}6{C[triple bond, length as m-dash]CPh}4](PF6), 4e; and [Cu12(μ12-Cl)(μ3-Cl){S2CN n Bu2}6{C[triple bond, length as m-dash]CCO2Me}3]+ 5a. Cluster 1a is the first structurally characterized copper cluster having a Cu13 centered cuboctahedral arrangement, a miniature of the bulk copper fcc structure. Furthermore, the partial Cu(0) character in the 2-electron superatoms 1 was confirmed by XANES. Inverse coordination clusters 2-5 are the first examples of copper clusters containing main group elements (Cl, Br, S) with a hyper-coordination number, twelve. A combined theoretical and experimental study was performed, which shows that the central copper (formally Cu1-) in nanoclusters 1 can be replaced by chalcogen/halogen atoms, resulting in the formation of clusters 2-5 which show enhanced luminescence properties and increase in the ionic component of the host-guest interaction as Br ≈ Cl > S > Cu, which is consistent with the Cu-X Wiberg indices. The new compounds have been characterized by ESI-MS, 1H, 13C NMR, IR, UV-visible, emission spectroscopy, and the structures 2a-b, 3d-e, 4e and 5a were established by X-ray diffraction analysis.
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Affiliation(s)
- Kiran Kumarvarma Chakrahari
- Department of Chemistry , National Dong Hwa University , No. 1, Sec. 2, Da Hsueh Rd. Shoufeng , Hualien 97401 , Taiwan , Republic of China .
| | - Rhone P Brocha Silalahi
- Department of Chemistry , National Dong Hwa University , No. 1, Sec. 2, Da Hsueh Rd. Shoufeng , Hualien 97401 , Taiwan , Republic of China .
| | - Jian-Hong Liao
- Department of Chemistry , National Dong Hwa University , No. 1, Sec. 2, Da Hsueh Rd. Shoufeng , Hualien 97401 , Taiwan , Republic of China .
| | - Samia Kahlal
- Univ Rennes , CNRS , ISCR-UMR 6226 , F-35000 Rennes , France
| | - Yu-Chiao Liu
- Institute of Chemistry , Academia Sinica , Taipei 11528 , Taiwan , Republic of China
| | - Jyh-Fu Lee
- National Synchrotron Radiation Research Center , Hsinchu 30076 , Taiwan
| | - Ming-Hsi Chiang
- Institute of Chemistry , Academia Sinica , Taipei 11528 , Taiwan , Republic of China
| | | | - C W Liu
- Department of Chemistry , National Dong Hwa University , No. 1, Sec. 2, Da Hsueh Rd. Shoufeng , Hualien 97401 , Taiwan , Republic of China .
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14
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Silvestru C, Andruh M. Ionel Haiduc – A Life Dedicated to Science. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Niu HC, Plajer AJ, Garcia-Rodriguez R, Singh S, Wright DS. Designing the Macrocyclic Dimension in Main Group Chemistry. Chemistry 2018; 24:3073-3082. [DOI: 10.1002/chem.201705230] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Hao-Che Niu
- Chemistry Department, Lensfield Road; Cambridge University; Cambridge CB2 1EW UK
| | - Alex J. Plajer
- Chemistry Department, Lensfield Road; Cambridge University; Cambridge CB2 1EW UK
| | - Raul Garcia-Rodriguez
- GIR MIOMeT-IU Cinquima-Química Inorgánica, Facultad de Ciencias, Campus Miguel, Delibes; Universidad de Valladolid; 47011 Valladolid Spain
| | - Sanjay Singh
- Department of Chemical Sciences; Indian Institute of Science Education and Research Mohali, Knowledge City, Sector 81, SAS Nagar; Mohali 140306, Punjab India
| | - Dominic S. Wright
- Chemistry Department, Lensfield Road; Cambridge University; Cambridge CB2 1EW UK
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16
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Montenegro-Pohlhammer N, Páez-Hernández D, Calzado CJ, Arratia-Pérez R. A theoretical study of the super exchange mechanism and magneto-structural relationships in the [Mn(iii)2(μ-F)F4(Me3tacn)2](PF6) coordination compound. NEW J CHEM 2018. [DOI: 10.1039/c8nj02793e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A detailed theoretical study of the electronic structure and magnetic properties of the dinuclear Mn(iii) complex, [Mn(iii)2(μ-F)F4(Me3tacn)2] (complex 1), with a single fluoride bridge is reported.
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Affiliation(s)
| | - Dayán Páez-Hernández
- Relativistic Molecular Physics Group (ReMoPh)
- Universidad Andrés Bello
- Santiago
- Chile
| | - Carmen J. Calzado
- Departamento de Química Física
- Universidad de Sevilla
- 41012 Sevilla
- Spain
| | - Ramiro Arratia-Pérez
- Relativistic Molecular Physics Group (ReMoPh)
- Universidad Andrés Bello
- Santiago
- Chile
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