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Ligand and solvent effects in the formation and self-assembly of a metallosupramolecular cage

Two bis-pyridyl-bis-urea ligands namely N,N′-bis-(3-pyridyl)diphenylmethylene-bis-urea (L1) and N,N′-bis-(3-picolyl)diphenylmethylene-bis-urea (L2) have been reacted with a Cu(ii) salt resulting in the formation of a metallosupramolecular cage [{Cu2(μ-L1)4(DMSO)2(H2O)2}·SO4·X] (1) and a one-dimensional coordination polymer [{Cu(1)(μ-L2)2(H2O)2}{Cu(2)(μ-L2)2(H2O)2}·2SO4·9H2O·X]n (2) (where DMSO = dimethylsulfoxide, and X = disordered lattice included solvent molecules), respectively. The single crystal structures of 1 and 2 are discussed in the context of the effect of the ligands, particularly the hydrogen bonding functionality of the ligand, on the supramolecular structural diversities observed in these metal organic compounds. The supramolecular packing of 1 is clearly influenced by the nature of the solvent and ligand used; mixtures of DMSO/MeOH or DMSO/H2O lead to the formation of blue crystals or a hydrogel, respectively

This work was also supported by project MAT2012-38318-C03-02 (to DR) and CTQ-2013-43012-P (to XR) from the Spanish Government and by FEDER funds

Royal Society of Chemistry (RSC)

Manager: Ministerio de Economía y Competitividad (Espanya)
Author: Adarsh, N. N.
Chakraborty, Amarnath
Tarrés, Màrius
Dey, Surjendu
Novio, Fernando
Chattopadhyay, Basab
Ribas Salamaña, Xavi
Ruiz Molina, Daniel
Abstract: Two bis-pyridyl-bis-urea ligands namely N,N′-bis-(3-pyridyl)diphenylmethylene-bis-urea (L1) and N,N′-bis-(3-picolyl)diphenylmethylene-bis-urea (L2) have been reacted with a Cu(ii) salt resulting in the formation of a metallosupramolecular cage [{Cu2(μ-L1)4(DMSO)2(H2O)2}·SO4·X] (1) and a one-dimensional coordination polymer [{Cu(1)(μ-L2)2(H2O)2}{Cu(2)(μ-L2)2(H2O)2}·2SO4·9H2O·X]n (2) (where DMSO = dimethylsulfoxide, and X = disordered lattice included solvent molecules), respectively. The single crystal structures of 1 and 2 are discussed in the context of the effect of the ligands, particularly the hydrogen bonding functionality of the ligand, on the supramolecular structural diversities observed in these metal organic compounds. The supramolecular packing of 1 is clearly influenced by the nature of the solvent and ligand used; mixtures of DMSO/MeOH or DMSO/H2O lead to the formation of blue crystals or a hydrogel, respectively
This work was also supported by project MAT2012-38318-C03-02 (to DR) and CTQ-2013-43012-P (to XR) from the Spanish Government and by FEDER funds
Format: application/pdf
Document access: http://hdl.handle.net/10256/14106
Language: eng
Publisher: Royal Society of Chemistry (RSC)
Collection: info:eu-repo/semantics/altIdentifier/doi/10.1039/c6nj03456j
info:eu-repo/semantics/altIdentifier/issn/1144-0546
info:eu-repo/semantics/altIdentifier/eissn/1369-9261
info:eu-repo/grantAgreement/MINECO//CTQ2013-43012-P/ES/INVESTIGACIONES MECANISTICAS PARA SINTESIS ORGANICA SOSTENIBLE VIA ACTIVACION DE PEQUEÑAS MOLECULAS GASEOSAS Y DE ENLACES C-H CON METALES DE LA PRIMERA SERIE DE TRANSICION/
Rights: Tots els drets reservats
Subject: Química supramolecular
Supramolecular chemistry
Title: Ligand and solvent effects in the formation and self-assembly of a metallosupramolecular cage
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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