| 학회 |
한국공업화학회 |
| 학술대회 |
2011년 가을 (11/02 ~ 11/04, 경원대학교) |
| 권호 |
15권 2호 |
| 발표분야 |
[에너지저장변환분과] 기능성 실리콘/불소 화합물 소재 합성 및 적용기술 |
| 제목 |
Morphology Chemistry of Metallacyclic Pd(II) and Pt(II) Complexes |
| 초록 |
The methodology widely adopted for the construction of new morphology is the self-assembly of the helical tectonics and the metal centers. The reaction of (COD)PdCl2 (COD = 1,5-cyclooctadiene) with bis(3-pyridyl)methylphenylsilane (L) in acetone affords single crystals consisting of cyclodimers, [PdCl2(L)]2, whereas the reaction in a mixture of dichloromethane and ethanol yields amorphous spheres consisting of cyclotrimers, [PdCl2(L)]3. The interconversion and morphology-control between the crystals and the microspheres can be explained by difference in flexibility. The reaction of (en)Pd(NO3)2 with 1,4-bis(dimethyl-4-pyridylsilyl)benzene (L) affords the cyclodimer whereas the reaction of (TMEDA)Pd(NO3)2 with L yields the cyclotrimer. Both complexes exist as catenane in water. The catenated cyclodimer is rigid whereas the catenated cyclotrimer is dynamic in water. The catenated cyclotrimers afford hydrogel containing 98.5% water. The hydrogel reproducibly changes to sol around 38 °C and to clear solution at 78 °C. |
| 저자 |
정옥상 |
| 소속 |
부산대 |
| 키워드 |
Self-assembly; Cyclodimer; Cyclotrimer; Morphology-control
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| E-Mail |
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