Synthesis, crystal structure and dielectric properties of a new acetate bridged coordination polymer: {[La(μ-CH3COO)(PDC)(H2O)2].2H2O}n

Ashalatha, A.; Sudarsanakumar, M.R.; Prasad, S. Shibu; Suma, S.; Kurup, M.R. Prathapachandra; Rahul, S.

doi:10.1016/j.molstruc.2019.05.119

Cited by 8 publications

(1 citation statement)

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“…The frequency dependence ε′(ω) for compound 1 depicts (Figure ) that ε′(ω) decreases gradually with increasing frequency. This behavior is in agreement with the natural properties of organic and inorganic hybrid materials. − It has been observed that at a low frequency, ε′(ω) is increased with increasing temperature. Generally, there are four types of polarization, electronic, ionic, orientation, and space charge polarization, which are mainly responsible for the high dielectric constant of the material. , This dielectric constant also strongly depends on the purity and perfection of the synthesized samples.…”

Section: Resultssupporting

confidence: 84%

Studies on Magnetic and Dielectric Properties of Antiferromagnetically Coupled Dinuclear Cu(II) in a One-Dimensional Cu(II) Coordination Polymer

Jana¹,

Ray²,

Chandra³

et al. 2019

ACS Omega

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A one-dimensional Cu(II) coordination polymer with encapsulated antiferromagnetically coupled binuclear Cu(II) has been synthesized by using 5-nitroisophthalic acid (5-N-IPA) and 4-aminopyridine (4-APY) [Cu2(5-N-IPA)2(4-APY)4] n (1). Electrical properties are examined by complex impedance (Z*), dielectric permittivity (ε*), and ac conductivity studies at different frequencies (10 kHz–5 MHz) and temperatures (253–333 K). The contribution of grain and grain boundary has been explained by a different theoretical model. The variable temperature magnetic susceptibility data for compound 1 were recorded between 300 and 2 K. The shape of the curve (χM T vs T) indicates dominant antiferromagnetic coupling, which results from the interaction between the copper(II) atoms.

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