한국결정성장학회지 (Journal of the Korean Crystal Growth and Crystal Technology)

  • 제32권5호
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  • Pages.199-204
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  • 2022
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  • 1225-1429(pISSN)
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  • 2234-5078(eISSN)
한국결정성장학회 (The Korea Association of Crystal Growth)
권호 표지
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증발법으로 합성된 신규 가돌리늄 금속-유기골격체의 단결정 구조 분석 및 자성학적 특성 연구

Structure analysis, and magnetic study of a new Gd-metal-organic framework single crystal grown by the slow-evaporation method

  • 송정화 (한라대학교 신소재화학공학과)
  • Song, Jeong Hwa (Dept. of Advanced Materials & Chemical Engineering, Halla University)
  • 투고 : 2022.09.27
  • 심사 : 2022.10.07
  • 발행 : 2022.10.31
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초록

유연한 구조의 p-XBP4 리간드를 활용하여 새로운 3차원 구조의 Gd-MOF를 합성하고 단결정 회절 분석기를 활용하여 정확한 구조를 분석하였다. 중심 금속인 Gd는 6개의 p-XBP4와 1개의 물 분자에 의해 총 7배위 되어 있으며, W(CN)8는 배위되지 않고 전하 균형을 맞추기 위해 구조체 내에 위치하고 있다. 중심 금속인 Gd는 배위된 p-XBP4에 의해 이웃한 Gd와 연결되어 3차원의 입체구조를 형성한다. 란탄 금속의 특성을 고려하여 직류 자화율 측정을 활용하여 자성 특성에 대한 연구를 진행하였다.

A new three-dimensional Gd-MOF, [Gd(p-XBP4)4(H2O)]·W(CN)8; (1; p-XBP4 = N,N'-p-phenylenedimethylenbis (pyridin-4-one)) has been synthesized by slow-evaporation and its crystal structure was characterized by single-crystal X-ray diffraction (SCXRD) analysis. For each GdIII ion, there are seven coordination sites, which are occupied by six oxygen atoms of six p-XBP4 ligands and one oxygen atom from the water molecule. The [W(CN)8]3- anion exists for charge balance with cationic framework. The GdII ions are interconnected by the p-XBP4 ligand to form the three-dimensional structure. Considering the magnetic property of lanthanide ions, magnetic studies of Gd-MOF were investigated by direct-current (DC) magnetic susceptibilities measurements.

키워드

과제정보

본 논문은 한국연구재단의 생애 첫 연구사업(과제번호: 2021R1G1A1094963)의 지원을 받아 수행된 연구 결과입니다.

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