격자 구조 화학은 MOF(금속유기골격체) 설계 원리로서, 미리 정해진 분자 구성 요소(금속 노드와 유기 연결체)를 조립하여 예측 가능한 토폴로지를 갖는 확장되고 질서정연한 구조를 형성하는 것을 포함합니다. 이 원리의 핵심적인 예시는 등구조 MOF의 합성입니다. 등구조 MOF는 기본 네트워크 토폴로지를 유지하면서 유기 연결체의 길이를 점진적으로 늘려 기공 크기를 체계적으로 확장한 것입니다.
망상 구조 화학 및 등망상 구조 확장
2002
- Omar M. Yaghi
- Michael O’Keeffe
(설명을 위한 생성된 이미지입니다)
Reticular chemistry elevates the synthesis of materials from a trial-and-error process to a more deterministic, design-based science. It treats the metal clusters (Secondary Building Units, SBUs) and organic linkers as pre-defined geometric shapes (e.g., an octahedral SBU and a linear linker). By understanding the coordination preferences of the metal and the geometry of the linker, chemists can predict the resulting network topology before synthesis. The most famous example of this is the Isoreticular MOF (IRMOF) series, which is based on the archetypal MOF-5 structure. MOF-5 has a primitive cubic (pcu) topology formed from Zn4O octahedral SBUs and linear 1,4-benzenedicarboxylate (BDC) linkers.
The concept of isoreticular expansion was demonstrated by replacing the BDC linker with longer, but geometrically similar, dicarboxylate linkers like 2,6-naphthalenedicarboxylate (NDC) or 4,4′-biphenyldicarboxylate (BPDC). The resulting materials, IRMOF-8 and IRMOF-10 respectively, retained the same pcu network topology as MOF-5 but featured significantly larger pores. This systematic variation allowed for a direct correlation between linker length, pore size, and properties like gas uptake capacity, proving that MOF properties could be fine-tuned in a highly controlled manner. This principle has been extended to numerous other network topologies and building block combinations, solidifying MOFs as a prime example of programmable matter at the molecular level.
UNESCO Nomenclature: 2203
무기화학
유형
Design Principle
분열
기초적인
용법
널리 사용됨
전구체
- concepts of supramolecular chemistry by jean-marie lehn
- crystal engineering principles developed by gerhard schmidt
- development of single-crystal x-ray diffraction for structure determination
- synthesis of early coordination polymers
- topological analysis of crystal structures
응용 프로그램
특허:
NA
잠재적 혁신 아이디어
- programmable mofs that change pore size in response to light or heat
- multi-component mofs (MT-MOFs) with precisely arranged, different linkers for complex catalytic cascades
- chiral MOFs designed for enantioselective separations in the pharmaceutical industry
- mof-based logic gates where chemical inputs trigger structural changes
- materials with negative thermal expansion designed from first principles
- dynamic frameworks for capturing and releasing molecules on demand
- mof ‘sponges’ for crystallizing and determining the structure of otherwise non-crystallizable molecules
- frameworks with precisely engineered defects for enhanced catalytic activity
- interpenetrated mof structures for enhanced mechanical stability
- composite materials combining mofs with polymers for improved processability
Related to: reticular chemistry, isoreticular, MOF, irMOF, crystal engineering, topology, secondary building unit, SBU, rational design, pore size tuning.
역사적 맥락
망상 구조 화학 및 등망상 구조 확장
(날짜를 알 수 없거나 관련이 없는 경우, 예를 들어 "유체역학"의 경우, 주목할 만한 등장 시기를 대략적으로 추정하여 제공합니다.)
