Synthesis, characterisation and magnetic properties of copper(II) complexes with 3-hydroxypicolinic acid (HpicOH): the crystal structure of [Cu(picOH)(2)(BPE)](2)center dot[Cu(picOH)(2)(BPE)(2)]center dot 8H(2)O
authors Girginova, PI; Paz, FAA; Nogueira, HIS; Silva, NJO; Amaral, VS; Klinowski, J; Trindade, T
nationality International
journal JOURNAL OF MOLECULAR STRUCTURE
author keywords copper (II) complexes; 3-hydroxypicolinic acid; crystal structure; magnetic properties
keywords CADMIUM-ORGANIC FRAMEWORK; COORDINATION POLYMERS; SUPRAMOLECULAR ISOMERISM; HYDROTHERMAL SYNTHESIS; 3-DIMENSIONAL NETWORK; BUILDING-BLOCKS; TRIMESIC ACID; LIGANDS; 1,2-BIS(4-PYRIDYL)ETHANE; SOLIDS
abstract A novel ID coordination polymer, [Cu(picOH)(2)(BPE)] (IIa), and neutral [Cu(picOH)(2)(BPE)(2)] (IIb) complexes, can be simultaneously isolated (structure H) when neutral [Cu(picOH)21 (1) species are axially bridged by 1,2-bis(4-pyridyl)ethane (BPE) molecules. The compound has been characterised structurally using single-crystal X-ray diffraction, elemental analysis, infrared and Raman spectroscopies and thermoanalytical measurements. In both structures the 3-hydroxypicolinate ligands are coordinated to the Cu2+ centres through their typical N,O-chelating coordination, with the increase of coordination number in II leading to a typical Jahn-Teller distorted octahedral coordination geometry. Although the structure of I has already been reported, we have re-determined its single-crystal structure at the low temperature of 180(2) K for comparative purposes. The magnetic properties of both compounds have also been investigated. (C) 2004 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE BV
issn 0022-2860
year published 2005
volume 737
issue 2-3
beginning page 221
ending page 229
digital object identifier (doi) 10.1016/j.molstruc.2004.10.035
web of science category Chemistry, Physical
subject category Chemistry
unique article identifier WOS:000227082800019
  ciceco authors
  impact metrics
journal analysis (jcr 2019):
journal impact factor 2.463
5 year journal impact factor 2.121
category normalized journal impact factor percentile 42.453
dimensions (citation analysis):
altmetrics (social interaction):



 


Apoio

1suponsers_list_ciceco.jpg