Selective Liquid Membrane Transport of Pd(II) as PdCl2−4 Ion Using Potassium–Dicyclohexyl-18-crown-6 as Carrier

Jabbari, Ali; Mohammadi, Jalil; Shamsipur, Mojtaba

doi:10.1006/mchj.1999.1783

Cited by 10 publications

(11 citation statements)

References 21 publications

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“…For a Cu 2+ (3d 9 ) ion in tetragonally elongated octahedra, the lower 2 E g irreducible representation would be separated into two orbital singlets 2 B 1g (|x 2 − y 2 ) and 2 A 1g (|z 2 ), with the former lying lowest. Meanwhile, the upper 2 T 2g representation would split into an orbital singlet 2 B 2g (|xy ) and a doublet 2 E g (|xz , |yz ) [24].…”

Section: Theoretical Formulasmentioning

confidence: 99%

“…Meanwhile, the upper 2 T 2g representation would split into an orbital singlet 2 B 2g (|xy ) and a doublet 2 E g (|xz , |yz ) [24]. By including both the CF and CT mechanisms, the perturbation Hamiltonian for this 3d 9 cluster under external magnetic field can be written as:…”

Section: Theoretical Formulasmentioning

confidence: 99%

“…Containing square planar PdX 4 2− (X = Cl, Br) groups, K 2 PdX 4 are interesting systems due to the properties of non-totally symmetrically distortion [1,2], covalency [3], optical [4,5], reacting (bonding) with some important biological molecules [6 -8] and selective liquid membrane transport (of PdCl 4 2− group) behaviours [9,10]. On the other hand, Cu 2+ (3d 9 , equivalent to one 3d hole) can be regarded as a model system among the transition-metal group, having one ground state and a single excited state under regular octahedral environments.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, Cu 2+ (3d 9 , equivalent to one 3d hole) can be regarded as a model system among the transition-metal group, having one ground state and a single excited state under regular octahedral environments. Particularly, the optical, local structure and electronic properties for square planar Cu 2+ clusters have also been attractive subjects [11 -14].…”

Section: Introductionmentioning

confidence: 99%

“…In this work, the improved formulas of the EPR parameters for a 3d 9 ion under tetragonally elongated octahedra are established by considering both the CF and CT contributions. The related MO coefficients are determined from the cluster approach in a uniform way, instead of taking as adjustable parameters.…”

Section: Introductionmentioning

confidence: 99%

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Investigations on the EPR Parameters for the Square Planar Cu²⁺ Centers in K₂PdX₄ (X = Cl, Br)

et al. 2009

Zeitschrift Für Naturforschung A

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The EPR parameters g factors g , g ⊥ and the hyperfine structure constants A and A ⊥ for the square planar Cu 2+ centers in K 2 PdX 4 (X = Cl, Br) are theoretically investigated from the perturbation formulas of these parameters for a 3d 9 ion under tetragonally elongated octahedra. In these formulas, not only the contributions from the conventional crystal-field (CF) mechanism, but also those from the charge-transfer (CT) mechanism are taken into account. The related molecular orbital coefficients are uniformly determined from the cluster approach, and the tetragonal field parameters Ds and Dt are obtained from the superposition model and the local structures of the systems. Based on only one adjustable parameter, the present results are in reasonable agreement with the observed values. Importance of the charge-transfer contributions is more significant for ligand Br than that for Cl due to the stronger covalency and much larger spin-orbit coupling coefficient of the former.

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Section: Theoretical Formulasmentioning

confidence: 99%

Section: Theoretical Formulasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Investigations on the EPR Parameters for the Square Planar Cu²⁺ Centers in K₂PdX₄ (X = Cl, Br)

et al. 2009

Zeitschrift Für Naturforschung A

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Cd²⁺, Cu²⁺, Pb²⁺, Sr²⁺, and Y³⁺ binding characteristics of 17β‐estradiol molecularly imprinted polymer particles incorporated with dicyclohexano‐18‐crown‐6 for urine bioassay

Lai

Bahraini

et al. 2011

J of Applied Polymer Sci

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Bioactivity is an important aspect that can be appropriately used to tune the cellular interactions occurring at the biomaterial‐physiological interface. In this regard, we explore here the nano‐ or quantum‐size effects of a highly dispersible nanostructured carbon present in the void space between the polymers chains (Nylon 6,6) in modulating the cellular functions when osteoblasts are seeded on biocompatible substrates. The filling‐up of void space in polymer facilitates filopodia to access the extracellular matrix, enabling integrin receptors to bind to the artificial biomedical device, promoting cellular interactions. In this regard, the fundamental principles of materials processing and cellular biology were combined to elucidate the mechanism of cell‐substrate interactions and the molecular machinery controlling the cell response. This is accomplished by investigating cell attachment, proliferation, and morphology, including cytomorphometry evaluation and quantitative assessment of prominent proteins, actin, vinculin, and fibronectin that are sensitive to cell‐substrate interactions. © 2012 Wiley Periodicals, Inc. J Biomed Mater Res Part A, 2013.

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Theoretical study of the superhyperfine parameters for Cu2 + in K2PdX4 (X = Cl, Br)

Wei

Zhang

et al. 2008

Hyperfine Interact

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The superhyperfine parameters T j ( j = x, y, z) for Cu 2+ in the squareplanar K 2 PdX 4 (X = Cl, Br) are theoretically studied from the perturbation formulas of these parameters for an octahedral 3d 9 cluster, by considering both the contributions from the crystal-field and charge-transfer mechanisms. The related molecular orbital coefficients are determined from the cluster approach in a uniform way. Based on one adjustable proportional factor ρ for the orbital admixture coefficients, the calculated results of present work show reasonable agreement with the observed values.Keywords Electron paramagnetic resonance (EPR) · Superhyperfine interactions · Cu 2+ · K 2 PdX 4 (X = Cl, Br)

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Selective Liquid Membrane Transport of Pd(II) as PdCl2−4 Ion Using Potassium–Dicyclohexyl-18-crown-6 as Carrier

Cited by 10 publications

References 21 publications

Investigations on the EPR Parameters for the Square Planar Cu²⁺ Centers in K₂PdX₄ (X = Cl, Br)

Investigations on the EPR Parameters for the Square Planar Cu²⁺ Centers in K₂PdX₄ (X = Cl, Br)

Cd²⁺, Cu²⁺, Pb²⁺, Sr²⁺, and Y³⁺ binding characteristics of 17β‐estradiol molecularly imprinted polymer particles incorporated with dicyclohexano‐18‐crown‐6 for urine bioassay

Theoretical study of the superhyperfine parameters for Cu2 + in K2PdX4 (X = Cl, Br)

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Selective Liquid Membrane Transport of Pd(II) as PdCl2−4 Ion Using Potassium–Dicyclohexyl-18-crown-6 as Carrier

Cited by 10 publications

References 21 publications

Investigations on the EPR Parameters for the Square Planar Cu2+ Centers in K2PdX4 (X = Cl, Br)

Investigations on the EPR Parameters for the Square Planar Cu2+ Centers in K2PdX4 (X = Cl, Br)

Cd2+, Cu2+, Pb2+, Sr2+, and Y3+ binding characteristics of 17β‐estradiol molecularly imprinted polymer particles incorporated with dicyclohexano‐18‐crown‐6 for urine bioassay

Theoretical study of the superhyperfine parameters for Cu2 + in K2PdX4 (X = Cl, Br)

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About

Investigations on the EPR Parameters for the Square Planar Cu²⁺ Centers in K₂PdX₄ (X = Cl, Br)

Investigations on the EPR Parameters for the Square Planar Cu²⁺ Centers in K₂PdX₄ (X = Cl, Br)

Cd²⁺, Cu²⁺, Pb²⁺, Sr²⁺, and Y³⁺ binding characteristics of 17β‐estradiol molecularly imprinted polymer particles incorporated with dicyclohexano‐18‐crown‐6 for urine bioassay