Liquid-crystalline coordination polymers based on tetra(Alkoxybenzoato)dirhodium(II) complexes axially linked by tetrazine, phenazine and 4,4′-bipyridine

The reaction of dirhodium tetrakis(3,4,5-trialkoxy)benzoates Rh 2 (B3OCn) 4 (n = 10, 14, and 18) with three different dinitrogenated axial ligands (L ax ), namely tetrazine (tz), phenazine (phz), and 4,4′-bipyridine (bpy), gave rise to three homologous series of mesogenic coordination polymers, [Rh...

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Detalles Bibliográficos
Publicado: 2017
Materias:
Bimetallic carboxylates
Columnar mesophases
Coordination polymers
Metal-metal bond
Metallomesogens
Nitrogenated axial ligands
Structural models
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00958972_v70_n21_p3633_Rossi
http://hdl.handle.net/20.500.12110/paper_00958972_v70_n21_p3633_Rossi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00958972_v70_n21_p3633_Rossi
record_format dspace
spelling paper:paper_00958972_v70_n21_p3633_Rossi2023-06-08T15:09:42Z Liquid-crystalline coordination polymers based on tetra(Alkoxybenzoato)dirhodium(II) complexes axially linked by tetrazine, phenazine and 4,4′-bipyridine Bimetallic carboxylates Columnar mesophases Coordination polymers Metal-metal bond Metallomesogens Nitrogenated axial ligands Structural models The reaction of dirhodium tetrakis(3,4,5-trialkoxy)benzoates Rh 2 (B3OCn) 4 (n = 10, 14, and 18) with three different dinitrogenated axial ligands (L ax ), namely tetrazine (tz), phenazine (phz), and 4,4′-bipyridine (bpy), gave rise to three homologous series of mesogenic coordination polymers, [Rh 2 (B3OCn) 4 ]L ax . All of them exhibited thermotropic columnar mesophases that were of the hexagonal type for tz and phz and rectangular for bpy. The lighter n = 10 homologs of the three series are liquid crystals (LC) at room temperature. Their mesomorphic properties have been compared with those of the previously studied L ax = pyrazine series. Models for the supramolecular organization of the three polymeric series in their Col LC phases are proposed on the basis of their structural parameters, as measured by XRD and SAXS. The differences are interpreted in terms of different coordination features of the axial ligands. © 2017 Informa UK Limited, trading as Taylor & Francis Group. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00958972_v70_n21_p3633_Rossi http://hdl.handle.net/20.500.12110/paper_00958972_v70_n21_p3633_Rossi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Bimetallic carboxylates
Columnar mesophases
Coordination polymers
Metal-metal bond
Metallomesogens
Nitrogenated axial ligands
Structural models
spellingShingle Bimetallic carboxylates
Columnar mesophases
Coordination polymers
Metal-metal bond
Metallomesogens
Nitrogenated axial ligands
Structural models
Liquid-crystalline coordination polymers based on tetra(Alkoxybenzoato)dirhodium(II) complexes axially linked by tetrazine, phenazine and 4,4′-bipyridine
topic_facet Bimetallic carboxylates
Columnar mesophases
Coordination polymers
Metal-metal bond
Metallomesogens
Nitrogenated axial ligands
Structural models
description The reaction of dirhodium tetrakis(3,4,5-trialkoxy)benzoates Rh 2 (B3OCn) 4 (n = 10, 14, and 18) with three different dinitrogenated axial ligands (L ax ), namely tetrazine (tz), phenazine (phz), and 4,4′-bipyridine (bpy), gave rise to three homologous series of mesogenic coordination polymers, [Rh 2 (B3OCn) 4 ]L ax . All of them exhibited thermotropic columnar mesophases that were of the hexagonal type for tz and phz and rectangular for bpy. The lighter n = 10 homologs of the three series are liquid crystals (LC) at room temperature. Their mesomorphic properties have been compared with those of the previously studied L ax = pyrazine series. Models for the supramolecular organization of the three polymeric series in their Col LC phases are proposed on the basis of their structural parameters, as measured by XRD and SAXS. The differences are interpreted in terms of different coordination features of the axial ligands. © 2017 Informa UK Limited, trading as Taylor & Francis Group.
title Liquid-crystalline coordination polymers based on tetra(Alkoxybenzoato)dirhodium(II) complexes axially linked by tetrazine, phenazine and 4,4′-bipyridine
title_short Liquid-crystalline coordination polymers based on tetra(Alkoxybenzoato)dirhodium(II) complexes axially linked by tetrazine, phenazine and 4,4′-bipyridine
title_full Liquid-crystalline coordination polymers based on tetra(Alkoxybenzoato)dirhodium(II) complexes axially linked by tetrazine, phenazine and 4,4′-bipyridine
title_fullStr Liquid-crystalline coordination polymers based on tetra(Alkoxybenzoato)dirhodium(II) complexes axially linked by tetrazine, phenazine and 4,4′-bipyridine
title_full_unstemmed Liquid-crystalline coordination polymers based on tetra(Alkoxybenzoato)dirhodium(II) complexes axially linked by tetrazine, phenazine and 4,4′-bipyridine
title_sort liquid-crystalline coordination polymers based on tetra(alkoxybenzoato)dirhodium(ii) complexes axially linked by tetrazine, phenazine and 4,4′-bipyridine
publishDate 2017
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00958972_v70_n21_p3633_Rossi
http://hdl.handle.net/20.500.12110/paper_00958972_v70_n21_p3633_Rossi
_version_ 1768545967109308416

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