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Publication
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| Research Title |
SYNTHESIS AND CRYSTAL STRUCTURE OF COBALT-4-PICOLYLAMINE-SULFATE SUPRAMOLECULAR FRAMEWORK AND PHASE TRANSFORMATION WITH CHROMOTROPISM |
| Date of Distribution |
23 January 2012 |
| Conference |
| Title of the Conference |
4th International Conference on Science and Technology for Sustainable Development of the Greater Mekong Sub-region (4th STGMS) |
| Organiser |
Khon Kaen University |
| Conference Place |
Pullman Khon Kaen Raja Orchid Hotel, Khon Kaen, Thailand. |
| Province/State |
Khon Kaen, Thailand |
| Conference Date |
23 January 2012 |
| To |
24 January 2012 |
| Proceeding Paper |
| Volume |
1 |
| Issue |
1 |
| Page |
59 |
| Editors/edition/publisher |
Khon Kaen University |
| Abstract |
A new supramolecular metal-coordination compound [Co(4-picH)2(H2O)4]•(SO4)2•(H2O)3 (1) (4-picH = 4-picolylamine1+) was synthesized by layered diffusion and structurally characterized. Compound (1) contains mononuclear Co cation unit, two sulfate ions and three lattice water molecules. The Co2+ ion shows elongated octahedral geometry comprised of four oxygen atoms from water molecules at equatorial positions and two nitrogen atoms from 4-picH ligands which are protonated at NH2, leading to a mononuclear cation unit [Co(4-picoH)2(H2O)4]4+. Each mononuclear cation units are assembled by intermolecular hydrogen bonding and π-π stacking via 4-picH moieties to build 2D sheets. These layers are linked by intermolecular hydrogen bonding via 4-picoH ligand, two sulfate anions, lattice and coordinated water molecules to stabilize 3D supramolecular structure. Interestingly, this compound exhibits water induced reversible crystalline-to-amorphous phase transformation with chromotropism confirmed by spectroscopic techniques, elemental analyses, TGA and XRPD. |
| Author |
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| Peer Review Status |
มีผู้ประเมินอิสระ |
| Level of Conference |
ชาติ |
| Type of Proceeding |
Abstract |
| Type of Presentation |
Poster |
| Part of thesis |
true |
| ใช้สำหรับสำเร็จการศึกษา |
ไม่เป็น |
| Presentation awarding |
false |
| Attach file |
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| Citation |
0
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Journal Publication
ไทย