The crystal chemistry of copper(II) dipicolinates

Mostrar todas las versiones(2)

The molecular structure of a new copper dipicolinate, Cu(dipic)(H2dipic) · H2O, and a refinement of the previously reported Cu(dipic)(H2dipic) · 3H2O are presented. The Jahn-Teller effect, as operative in six-coordinated CuII surrounded by two planar tridentate ligands, is responsible for the presen...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Sileo, E.E., Blesa, M.A., Rigotti, G., Rivero, B.E., Castellano, E.E.
Formato:	JOUR
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_02775387_v15_n24_p4531_Sileo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_02775387_v15_n24_p4531_Sileo
record_format	dspace
spelling	todo:paper_02775387_v15_n24_p4531_Sileo2023-10-03T15:16:08Z The crystal chemistry of copper(II) dipicolinates Sileo, E.E. Blesa, M.A. Rigotti, G. Rivero, B.E. Castellano, E.E. The molecular structure of a new copper dipicolinate, Cu(dipic)(H2dipic) · H2O, and a refinement of the previously reported Cu(dipic)(H2dipic) · 3H2O are presented. The Jahn-Teller effect, as operative in six-coordinated CuII surrounded by two planar tridentate ligands, is responsible for the presence of a dianion and a neutral acid molecule in the structure. As opposed to previously reported copper dipicolinates, water molecules do not coordinate and in the trihydrate dehydration is facile because interstitial water finds easy dehydration pathways ; the mechanism involves nucleation and fast bidimensional growth. The monohydrate, however, presents tightly bound (through hydrogen bonds) water and no easy dehydration pathways are available ; the dehydration mechanism involves fluid-flux nucleation, mediated by fusion. Five different copper(II) dipicolinates are known ; because of the strong tendency of this ligand to form tridentate mononuclear complexes, all of them, except monoclinic Cu(dipic) · 2H2O, belong to the class of molecular solids. In the monoclinic dihydrate, carbonyl O atoms are involved in defining chains that run parallel to [001] planes. Copyright © 1996 Elsevier Science Ltd. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_02775387_v15_n24_p4531_Sileo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description	The molecular structure of a new copper dipicolinate, Cu(dipic)(H2dipic) · H2O, and a refinement of the previously reported Cu(dipic)(H2dipic) · 3H2O are presented. The Jahn-Teller effect, as operative in six-coordinated CuII surrounded by two planar tridentate ligands, is responsible for the presence of a dianion and a neutral acid molecule in the structure. As opposed to previously reported copper dipicolinates, water molecules do not coordinate and in the trihydrate dehydration is facile because interstitial water finds easy dehydration pathways ; the mechanism involves nucleation and fast bidimensional growth. The monohydrate, however, presents tightly bound (through hydrogen bonds) water and no easy dehydration pathways are available ; the dehydration mechanism involves fluid-flux nucleation, mediated by fusion. Five different copper(II) dipicolinates are known ; because of the strong tendency of this ligand to form tridentate mononuclear complexes, all of them, except monoclinic Cu(dipic) · 2H2O, belong to the class of molecular solids. In the monoclinic dihydrate, carbonyl O atoms are involved in defining chains that run parallel to [001] planes. Copyright © 1996 Elsevier Science Ltd.
format	JOUR
author	Sileo, E.E. Blesa, M.A. Rigotti, G. Rivero, B.E. Castellano, E.E.
spellingShingle	Sileo, E.E. Blesa, M.A. Rigotti, G. Rivero, B.E. Castellano, E.E. The crystal chemistry of copper(II) dipicolinates
author_facet	Sileo, E.E. Blesa, M.A. Rigotti, G. Rivero, B.E. Castellano, E.E.
author_sort	Sileo, E.E.
title	The crystal chemistry of copper(II) dipicolinates
title_short	The crystal chemistry of copper(II) dipicolinates
title_full	The crystal chemistry of copper(II) dipicolinates
title_fullStr	The crystal chemistry of copper(II) dipicolinates
title_full_unstemmed	The crystal chemistry of copper(II) dipicolinates
title_sort	crystal chemistry of copper(ii) dipicolinates
url	http://hdl.handle.net/20.500.12110/paper_02775387_v15_n24_p4531_Sileo
work_keys_str_mv	AT sileoee thecrystalchemistryofcopperiidipicolinates AT blesama thecrystalchemistryofcopperiidipicolinates AT rigottig thecrystalchemistryofcopperiidipicolinates AT riverobe thecrystalchemistryofcopperiidipicolinates AT castellanoee thecrystalchemistryofcopperiidipicolinates AT sileoee crystalchemistryofcopperiidipicolinates AT blesama crystalchemistryofcopperiidipicolinates AT rigottig crystalchemistryofcopperiidipicolinates AT riverobe crystalchemistryofcopperiidipicolinates AT castellanoee crystalchemistryofcopperiidipicolinates
_version_	1807318395530510336

The crystal chemistry of copper(II) dipicolinates

Ejemplares similares