C-H...Cl relevant discrepancy on structure, magnetic and electronic conductivity of two mixed-valence Cu{sup I}Cu{sup II} coordination polymers
- School of Chemistry and Environment, South China Normal University, Guangzhou 510006 (China)
- Research Institute of Tsinghua University in Shenzhen, Shenzhen 518055 (China)
Two mixed-valence Cu{sup I}Cu{sup II} coordination polymers [Cu{sup I}Cu{sup II}(qdiol)ClL]{sub n} (qdiol{sup 2-}=2,3-dioxyquinoxalinate, L=2,2'-bipyridine, 1; L=1,10-phenanthroline, 2) were obtained in basic ethanolic solution of CuCl{sub 2}, 1,4-dihydro-2,3-quinoxalinedione and L under the solvothermal condition. 1 and 2 are similar in composition, but differ remarkably in structure. The coordination modes of Cu{sup II}, qdiol{sup 2-} and L are identical in both complexes. But the Cu{sup I} ions are two- and three-coordinated, and the Cl{sup -} ions are terminal and bridging, in 1 and 2, respectively, which are relevant to the significantly different C-H...Cl hydrogen bonding pattern of bpy and phen. The temperature variable magnetic susceptibilities show that 1 is paramagnetic and 2 is weakly antiferromagnetic. The complex impedance spectroscopic studies indicate that both 1 and 2 are semiconductors and 2 is more conducting. - Graphical Abstract: Subtly different C-H...Cl bonding nature leads to diverse coordination modes and supramolecular networks, as well as physical properties of two Cu{sup I}Cu{sup II} coordination polymers with similar compositions. Highlights: > Two new Cu(I)-Cu(II) mixed-valence coordination polymers are obtained. > Environments of Cu(I) and Cl are different caused by C-H...Cl H-bonding. > Supramolecular networks are hence diverse. > Magnetic and semiconducting properties are influenced by the structures.
- OSTI ID:
- 21580127
- Journal Information:
- Journal of Solid State Chemistry, Vol. 184, Issue 7; Other Information: DOI: 10.1016/j.jssc.2011.05.016; PII: S0022-4596(11)00265-9; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
- Country of Publication:
- United States
- Language:
- English
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ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ANTIFERROMAGNETISM
BIPYRIDINES
BONDING
CHLORINE IONS
COMPLEXES
COPPER
COPPER CHLORIDES
CRYSTAL STRUCTURE
HYDROGEN
MAGNETIC SUSCEPTIBILITY
PARAMAGNETISM
PHENANTHROLINES
POLYMERS
SEMICONDUCTOR MATERIALS
AROMATICS
AZAARENES
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CHARGED PARTICLES
CHLORIDES
CHLORINE COMPOUNDS
COPPER COMPOUNDS
COPPER HALIDES
ELEMENTS
FABRICATION
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
IONS
JOINING
MAGNETIC PROPERTIES
MAGNETISM
MATERIALS
METALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHYSICAL PROPERTIES
PYRIDINES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS