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Publication
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| Title of Article |
Bifunctional dinuclear complexes based on iminodiacetate and 1,2-di(4-pyridyl)ethylene: Crystal structures,
vapochromism, and iodine adsorption |
| Date of Acceptance |
24 September 2020 |
| Journal |
| Title of Journal |
CRYSTAL GROWTH & DESIGN |
| Standard |
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| Institute of Journal |
ACS (American Chemical Society) |
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| Volume |
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| Month |
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| Year of Publication |
2020 |
| Page |
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| Abstract |
Two dinuclear complexes, namely, [Ni2(IDA)2(dpe)(H2O)4](H2O)6 (1) and [Cu2(IDA)2(dpe)(H2O)2] (2) (IDA2- = iminodiacetate and dpe = 1,2-di(4-pyridyl)ethylene) were synthesized and structurally characterized. Ni(II) center in 1 exhibits octahedral geometry but Cu(II) center in 2 shows distorted square pyramidal geometry. Both metal centers are coordinated by IDA2- via chelating mode (κ3-O,N,O) and linked by 2-dpe, forming a dinuclear complex. Three dimensional (3D) supramolecular architectures of 1 and 2 are considerably different that arise from the influence of flexible ligands with different metal centers. Interestingly, a robust but flexible 3D supramolecular framework of 1 contains 1D channels along the c-axis, which is filled by six water molecules. Complex 1 exhibits reversible thermal-induced structural transformation with chromotropism upon dehydration and rehydration processes, whereas 2 exhibits nonreversible processes. In addition, 1 and its activated form 1a (1 was heated at 90 ºC to remove all lattice water) and anhydrous form 1b (1 was heated at 200 ºC) display vapochromic behavior after exposure to a variety of saturated amine vapors that were confirmed by FT-IR, solid-state UV-vis, and X-ray absorption spectroscopy (XAS), TGA, and PXRD techniques. Moreover, the activated form 1a exhibits an excellent iodine adsorption in hexane with the removal efficiency of 98.8%. The encapsulated iodine can be also released into an acetonitrile solution. |
| Keyword |
Dinuclear complexes, structural transformation, vapochromism, iodine adsorption |
| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ได้รับการตอบรับให้ตีพิมพ์ |
| Level of Publication |
นานาชาติ |
| citation |
false |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Journal Publication
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