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Bulicanu V, Pedersen KS, Rouzières M, Bendix J, Dechambenoit P, Clérac R, Hillard EA. One-dimensional coordination polymers of [Co3(dpa)4](2+) and [MF6](2-) (M = Re(IV), Zr(IV) and Sn(IV)). Chem Commun (Camb) 2016; 51:17748-51. [PMID: 26490560 DOI: 10.1039/c5cc06704a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One-dimensional coordination polymers of alternating metal-metal bonded trinuclear [Co3(dpa)4](2+) (dpa = the anion of 2,2'-dipyridylamine) building blocks and [ReF6](2-) (1), [ZrF6](2-) (2) or [SnF6](2-) (3) linkers have been self-assembled and crystallographically characterized. Magnetic measurements reveal a significant ferromagnetic coupling (J/k(B) = +9.9 K) between S = 1/2 {Co3(6+)} and S = 3/2 Re(IV) magnetic sites through a single, unsupported fluoride bridge in 1.
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Affiliation(s)
- Vladimir Bulicanu
- CNRS, CRPP, UPR 8641, 33600 Pessac, France. and Univ. Bordeaux, CRPP, UPR 8641, 33600 Pessac, France
| | - Kasper S Pedersen
- CNRS, CRPP, UPR 8641, 33600 Pessac, France. and Univ. Bordeaux, CRPP, UPR 8641, 33600 Pessac, France
| | - Mathieu Rouzières
- CNRS, CRPP, UPR 8641, 33600 Pessac, France. and Univ. Bordeaux, CRPP, UPR 8641, 33600 Pessac, France
| | - Jesper Bendix
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Pierre Dechambenoit
- CNRS, CRPP, UPR 8641, 33600 Pessac, France. and Univ. Bordeaux, CRPP, UPR 8641, 33600 Pessac, France
| | - Rodolphe Clérac
- CNRS, CRPP, UPR 8641, 33600 Pessac, France. and Univ. Bordeaux, CRPP, UPR 8641, 33600 Pessac, France
| | - Elizabeth A Hillard
- CNRS, CRPP, UPR 8641, 33600 Pessac, France. and Univ. Bordeaux, CRPP, UPR 8641, 33600 Pessac, France
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Jin-Long, Matsuda Y, Uemura K, Ebihara M. Mixed valency in quadruple hydrogen-bonded dimers of bis(biimidazolate)dirhodium complexes. Inorg Chem 2015; 54:2331-8. [PMID: 25692759 DOI: 10.1021/ic502953b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Dirhodium complexes with biimidazole (H2bim) ligands [Rh2(O2CR)2(H2bim)2Cl2] (R = Bu ([1Cl2]), Pr ([2Cl2])), [Rh2(O2CBu)2(H2bim)2](PF6)2 ([1](PF6)2), [Rh2(O2CBu)2(H2bim)2(PPh3)2](PF6)2 ([1(PPh3)2](PF6)2), and [Rh2(O2CPr)2(H2bim)2(PPh3)2]Cl2 ([2(PPh3)2]Cl2) have been synthesized. Deprotonation of the biimidazole complexes afforded the quadruply hydrogen-bonded dimers of the biimidazolate complexes [Rh2(O2CR)2(Hbim)2(PPh3)2]2 (R = Bu ([1'(PPh3)2]2) and Pr ([2'(PPh3)2]2)). Complementary hydrogen bonds between the Hbim(-) ligands are not coplanar because the Hbim(-) ions in one dirhodium complex are not parallel (the dihedral angle between them is ca. 15°). A cyclic voltammogram of [1'(PPh3)2]2 shows two sets of two consecutive oxidation waves in CH2Cl2. The one-electron-oxidized species of [1'(PPh3)2]2 showed no intervalence charge-transfer band in the electronic spectrum and an axially symmetrical ESR spectrum with hyperfine structure because of two phosphorus atoms. These observations show that the odd electron is localized in a σ(Rh-Rh) orbital on one dirhodium unit. Theoretical calculations indicate that an oxidized complex [Rh2(O2CMe)2(bim)2(PMe3)2](-) hydrogen bonded with a biimidazole complex [Rh2(O2CMe)2(H2bim)2(PMe3)2](2+) was a stable mixed-valence complex.
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Affiliation(s)
- Jin-Long
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University , Yanagido, Gifu 501-1193, Japan
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Uemura K, Yamada T, Kanbara T, Ebihara M. Acetamidate-bridged paddlewheel dirhodium complex sandwiched by mononuclear platinum complexes with axial metal–metal bonds affording neutral heterometallic one-dimensional alignments. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2014.08.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Uemura K, Ebihara M. Assembled structures of tetrakis(biimidazole)dirhodium complexes hydrogen-bonded with common inorganic anions. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2014; 70:1006-1019. [PMID: 25449624 DOI: 10.1107/s2052520614021428] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2014] [Accepted: 09/26/2014] [Indexed: 06/04/2023]
Abstract
Eight new structures of dirhodium complexes, each with four biimidazole (H2bim) ligands, were obtained: [Rh2(H2bim)4(H2O)2](NO3)4·4H2O (I), [Rh2(H2bim)4(H2O)2](ClO4)4·5H2O (II), [Rh2(H2bim)4(MeOH)2](ClO4)4 (III), [Rh2(H2bim)4(DMF)2](BF4)4 (IV), [Rh2(H2bim)4(Mepy)2](SiF6)2·8H2O (V), [{Rh2(H2bim)4(pz)}2(μ-pz)](SiF6)(ClO4)6·12.7H2O (VI), [{Rh2(H2bim)4(pz)}2(μ-pz)](ClO4)8·11.4H2O (VII) and [Rh2(H2bim)4(μ-pz)](SiF6)2·6H2O (VIII). The unbridged Rh-Rh bond distances range between 2.6313 (8) and 2.7052 (5) Å. The dirhodium units adopt a staggered conformation with torsion angles N-Rh-Rh-N of 37.6 (4)-48.98 (8)°. Various assembled structures were constructed by hydrogen bonding between the complexes and the anions: a discrete structure in (IV), one-dimensional structure in (II), two-dimensional structures in (I), (III), (VI), (VII) and (VIII) and a three-dimensional structure in (V).
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Affiliation(s)
- Kazuhiro Uemura
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Masahiro Ebihara
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
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Ebihara M, Fuma Y. Two- and three-dimensional assembled structures constructed from amidate-bridged paddlewheel complexes with group 6 oxometallate ions. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2013; 69:480-489. [PMID: 24056357 DOI: 10.1107/s2052519213024068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Accepted: 08/27/2013] [Indexed: 06/02/2023]
Abstract
Monocationic acetamidate-bridged dinuclear units are two-dimensionally connected by axially coordinating group 6 oxometallate ions in the structures [{M2(acam)4}2(M'O4)] (M = Rh, Ru; M' = Cr, Mo, W; Hacam = acetamide). In these sheet structures, dinuclear units are connected to each other by NH...O hydrogen bonds. The sheets are also connected with NH...O hydrogen bonds. Amidate-bridged dirhodium units that have bulkier alkyl groups reacted with CrO4(2-) or MoO4(2-) give three-dimensional diamondoid structures [{Rh2(pram)4}2(CrO4)] · 1.08H2O, [{Rh2(pram)4}2(MoO4)] · 2.44H2O and [{Rh2(buam)4}2(MoO4)] (Hpram = propionamide; Hbuam = butyramide). In these structures the NH group of the amidate ligands hydrogen bonds with O atoms in metallate ions.
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Affiliation(s)
- Masahiro Ebihara
- Department of Chemistry, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
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Maass JS, Luck RL, Zeller M. The first dinuclear cobalt complex bridged by acetylamidate ligands: di-μ-acetylamido-κ 2O: N;κ 2N: O-di-μ-hydroxido-κ 4O: O-bis[bis(pyridine-κ N)cobalt(III)] bis(perchlorate) acetonitrile disolvate. Acta Crystallogr C 2012; 68:m233-4. [DOI: 10.1107/s0108270112031964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Accepted: 07/12/2012] [Indexed: 11/10/2022] Open
Abstract
The title compound, [Co2(C2H4NO)2(OH)2(C5H5N)4](ClO4)2·2C2H3N, consists of two octahedral CoIIIcenters arranged around an inversion point in which twocishydroxide and twotransacetylamidate ligands link the two centers together, forming a dimeric cationic complex. Each CoIIIcenter has twocispyridine ligands which coordinate in the same plane as thecishydroxide ligands. Two acetonitrile solvent molecules and two perchlorate anions are hydrogen bonded to the H atoms on the bridging hydroxide and acetylamidate (N atom) ligands, respectively.
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Fuma Y, Miyashita O, Kawamura T, Ebihara M. Change of electrical conductivities between hydrated and dehydrated samples of honeycomb sheet structures with mixed oxidation state paddlewheel dirhodium complexes and halide ions. Dalton Trans 2012; 41:8242-51. [DOI: 10.1039/c2dt11609j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Givaja G, Amo-Ochoa P, Gómez-García CJ, Zamora F. Electrical conductive coordination polymers. Chem Soc Rev 2012; 41:115-47. [DOI: 10.1039/c1cs15092h] [Citation(s) in RCA: 472] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Uemura K, Ebihara M. One-dimensionally extended paddlewheel dirhodium complexes from metal-metal bonds with diplatinum complexes. Inorg Chem 2011; 50:7919-21. [PMID: 21790127 DOI: 10.1021/ic200786k] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have succeeded in obtaining unique one-dimensional (1D) chain complexes (1, 2, and 3) comprised of two types of metal species: rhodium and platinum. These compounds are constructed from a dinuclear rhodium complex (i.e., [Rh(2)]) and a pivalamidate-bridged platinum complex (i.e., [Pt(2)]), forming an attractive quasi-1D infinite chain, expressed as -{[Rh(2)]-[Pt(2)]-[Pt(2)]}(n)-. Interestingly, the bridging ligands of [Rh(2)] can be varied with trifluoroacetate, acetate, and acetamidate groups, indicating the possibility of electronic structure modulation in the 1D chain.
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Affiliation(s)
- Kazuhiro Uemura
- Department of Chemistry, Faculty of Engineering, Gifu University, Yanagido 1-1, Gifu, 501-1193, Japan.
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Gonçalves IS, Lopes AD, Amarante TR, Almeida Paz FA, Silva NJO, Pillinger M, Gago S, Palacio F, Kühn FE, Romão CC. Heterometallic complexes involving iron(II) and rhenium(VII) centers connected by mu-oxido bridges. Dalton Trans 2009:10199-207. [PMID: 19921054 DOI: 10.1039/b913687h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of FeI(2) with two equivalents of AgReO(4) in acetonitrile leads to yellow, crystalline Fe(ReO(4))(2)(CH(3)CN)(3) (1), and the treatment of 1 with four equivalents of CpFe(CO)(2)CN gives orange, crystalline Fe(ReO(4))(2)[CpFe(CO)(2)(CN)](4) (2). Compound 2 can also be prepared in one step by the reaction of FeI(2), AgReO(4) and CpFe(CO)(2)CN in dichloromethane. The structure of 1 consists of infinite chains in which alternating {Fe(CH(3)CN)(4)} and {Fe(ReO(4))(2)(CH(3)CN)(2)} units are linked by perrhenate anions to form a (-ReO(2)-O-Fe(ReO(4))(2)(CH(3)CN)(2)-O-ReO(2)-O-Fe(CH(3)CN)(4)-O-)(n) molecular wire. The structure of 2 shows a monomeric iron complex with a slightly distorted octahedral coordination environment consisting of four organometallic complexes coordinated in the equatorial plane via the cyanide groups and two monodentate perrhenates in the corresponding apical positions. Both compounds were further characterised in the solid state by IR spectroscopy, thermogravimetric analysis and magnetic susceptibility measurements. The magnetic data indicate that 1 behaves as a ferrimagnetic chain with 3D ordering below 8 K due to inter-chain interactions. Compound 2 has antiferromagnetic interactions within the Fe(ReO(4))(2)[CpFe(CO)(2)(CN)](4) clusters.
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Affiliation(s)
- Isabel S Gonçalves
- Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal.
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Bear JL, Han B, Li Y, Ngubane S, Van Caemelbecke E, Kadish KM. Synthesis, spectroscopic properties and electrochemistry of Rh2(ap)4(R) where R=CH3 or C6H5 and ap=2-anilinopyridinate anion. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.03.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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