Synthesis and Structural Characterization of a Series of One-Dimensional Heteronuclear Dirhodium-Silver Coordination Polymers

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Cruz Franch, Paula and Fernández Bartolomé, Estefanía and Cortijo Montes, Miguel and Delgado Martínez, Patricia and González Prieto, Rodrigo and Priego Bermejo, José Luis and Torres, María del Rosario and Jiménez Aparicio, Reyes (2019) Synthesis and Structural Characterization of a Series of One-Dimensional Heteronuclear Dirhodium-Silver Coordination Polymers. Polymers, 11 (1). p. 111. ISSN 2073-4360

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Official URL: https://doi.org/10.3390/polym11010111




Abstract

Herein, we describe the preparation of heteronuclear dirhodium-silver complexes by reaction between molecular Rh(II)-Rh(II) compounds [Rh2(μ-O2CR)4L2] (R = Me, Ph (1), CH2OEt (2); L = solvent molecules) with paddlewheel structure and PPh4[Ag(CN)2]. One-dimensional coordination polymers of (PPh4)n[Rh2(μ-O2CR)4Ag(CN)2]n (R = Me (3), Ph (4), CH2OEt (5)) formula have been obtained by replacement of the two labile molecules in the axial positions of the paddlewheel structures by a [Ag(CN)2]− bridging unit. The crystal structures of 3–5 display a similar arrangement, having anionic chains with a wavy structure and bulky (PPh4)+ cations placed between the chains. The presence of the (PPh4)+ cations hinders the existence of intermolecular Ag-Ag interactions although several C-H····π interactions have been observed. A similar reaction between [Rh2(μ-O2CCMe3)4(HO2CCMe3)2] and PPh4[Ag(CN)2] led to the molecular compound (PPh4)2{Rh2(μ-O2CCMe3)4[Ag(CN)2]2} (6) by replacement of the axial HO2CCMe3 ligands by two [Ag(CN)2]− units. The trimethylacetate ligand increases the solubility of the complex during the crystallization favouring the formation of discrete heteronuclear species.


Item Type:Article
Uncontrolled Keywords:dirhodium compounds; dicyano-argentate complexes; heteronuclear; one-dimensional; rhodium-silver chains; phenyl embrace
Subjects:Sciences > Chemistry > Chemistry, Inorganic
ID Code:66775
Deposited On:13 Jul 2021 14:35
Last Modified:14 Jul 2021 07:11

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