Structural, mesomorphic, photoluminescence and thermoelectric studies of mononuclear and polymeric complexes of copper(<scp>ii</scp>) with 2-hexyldecanoato and 4,4′-bipyridine ligands

Abdullah, Norbani; Hashim, Roslan; Ozair, Lailatun Nazirah; Al-Hakem, Yasameen; Samsudin, Habibah; Marlina, Anita; Salim, Malinda; Said, Suhana Mohd; Subramanian, Balamurugan; Nordin, Abdul Rahman

doi:10.1039/c5tc02273h

Cited by 13 publications

(1 citation statement)

References 42 publications

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“…Fig. 4 UV-Vis spectrum for complex 1 Similar broad band observed for 2 and 3 at 685 nm and 720 nm showed both complexes underwent a distorted octahedral Cu(II) geometry, where electronic transitions arose from 2 B1g to E1g, 2 B2g and 2 A1g [16]. The later geometry suggested due to the syn-anti and chelating carboxylate ligands with chelating 2,2'-bipyridine bonded to each Cu(II) centres [14].…”

Section: B Ir and Uv-vis Spectroscopiesmentioning

confidence: 83%

Synthesis and Mesomorphic Studies of Copper(II) with Carboxylato and N-Donor Ligands

Ozair¹,

Redwan²,

Yamin³

et al. 2019

MJoSHT

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Metal containing liquid crystals also known as metallomesogens is an orientationally ordered liquid that combines properties of both crystalline state and liquid state. Three linear and one branched alkyl chain complexes of general formula [Cu2(RCOO)4(X)2], where R = CH3(CH2)13 (Complex 1, Complex 2), p-CH3(CH2)14OC6H4 (Complex 3) and CH3(CH2)7CH[(CH2)5CH3] (Complex 4), X = pyridine or 2,2-bipyridine were prepared. The single crystal X-ray crystallography of [Cu2(CH3(CH2)13COO)4(py)2] (Complex 1) shows dinuclear complexes with each square pyramidally Cu(II) centre was bridged by four carboxylato molecules and a pyridine molecule. For all complexes, the IR spectra gave the ??coo values in the range of 164 - 240 cm-1 , suggesting two binding modes of the alkylcarboxylate ligands. The UV-vis spectra shows a broad d-d band at ?max ~ 664 – 699 nm (?max ~55 – 341 M-1 cm-1 ), indicating that the distorted square pyramidal geometry at Cu(II). From the results of differential scanning calorimetry (DSC) and optical polarizing microscopy (OPM), complexes 1-4 exhibited liquid crystal mesophases.

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Section: B Ir and Uv-vis Spectroscopiesmentioning

confidence: 83%

Synthesis and Mesomorphic Studies of Copper(II) with Carboxylato and N-Donor Ligands

Ozair¹,

Redwan²,

Yamin³

et al. 2019

MJoSHT

Self Cite

View full text Add to dashboard Cite

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Advances in n‐Type Organic Thermoelectric Materials and Devices

Sun

et al. 2019

Adv Elect Materials

157

136

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Thermoelectric materials have attracted more attention in recent years, which can be corroborated by the increasing scientific publications. Moreover, the optimistic prediction for the thermoelectric industry proves that the practicability of thermoelectric technology is further acknowledged. Recently, benefitting from the rapid development of organic electronics, the research of organic thermoelectric (OTE) materials is receiving particular interest. Cooperation and complementation between organic and inorganic thermoelectric materials could promote the broader application of thermoelectric effect. To realize high conversion efficiency of thermoelectric device, high‐performance p‐ and n‐type OTE materials are both necessary. However, the instability of most n‐type organic materials in air impedes their application for high‐performance thermoelectric conversion. Therefore, more efforts should be made to promote relevant research and applications. Herein, the research progress on OTE materials (n‐type) and devices is reviewed to show readers some details of n‐type OTE research and give some guidelines for further explorations.

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Thermo-electrochemical generation capabilities of octahedral spin crossover complexes of Mn(II), Fe(II) and Co(II) with N-donor ligands and benzoate counter ion

Hasnan

Abdullah

Salleh

et al. 2018

Electrochimica Acta

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Structural, mesomorphic, photoluminescence and thermoelectric studies of mononuclear and polymeric complexes of copper(ii) with 2-hexyldecanoato and 4,4′-bipyridine ligands

Abstract: Copper(ii) complexes exhibiting temperature-dependent mesomorphisms.

Cited by 13 publications

References 42 publications

Synthesis and Mesomorphic Studies of Copper(II) with Carboxylato and N-Donor Ligands

Synthesis and Mesomorphic Studies of Copper(II) with Carboxylato and N-Donor Ligands

Advances in n‐Type Organic Thermoelectric Materials and Devices

Thermo-electrochemical generation capabilities of octahedral spin crossover complexes of Mn(II), Fe(II) and Co(II) with N-donor ligands and benzoate counter ion

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