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Synthesis and Characterization of Lanthanide Single Molecule Magnets With Unconventional Ligands
Synthesis and Characterization of Lanthanide Single Molecule Magnets With Unconventional Ligands
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211150918
- ISBN
- 9798384447153
- DDC
- 546
- 서명/저자
- Synthesis and Characterization of Lanthanide Single Molecule Magnets With Unconventional Ligands
- 발행사항
- [Sl] : University of California, Berkeley, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 253 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-03, Section: B.
- 주기사항
- Advisor: Long, Jeffrey R.
- 학위논문주기
- Thesis (Ph.D.)--University of California, Berkeley, 2024.
- 초록/해제
- 요약The synthesis and characterization of several lanthanide single molecule magnets and a related series of benzene bridged lanthanide compounds are described in this dissertation. Previously overlooked ligand types, namely metalloligands and borole dianions, are shown to improve the operating temperature of lanthanide single molecule magnets by slowing thermally independent relaxation. This dissertation also touches upon a rare example of a highly covalent lanthanide arene interaction in a series of lanthanide benzene inverse sandwich compounds.Chapter 1 introduces single molecule magnetism and provides relevant background information regarding their electronic structure. The figures of merit used to evaluate the performance of different compounds are defined and important milestones in the field are discussed.Chapter 2 describes the synthesis and characterization of a series of tetrathiotungstate bridged lanthanide complexes. The magnetic characterization of these compounds and their comparison with isostructural tetrathiomolybdate complexes reveals that relativistic effects impact the magnetic exchange interaction between the bridge electron and the adjacent lanthanides.Chapter 3 details the synthesis and characterization of a series of cobalt bis-(1,2-diphenyldithiolate) bridged lanthanide complexes as well as their post synthetic reduction. The dysprosium congener of this complex exhibited single molecule magnetism with suppressed temperature independent relaxation.Chapter 4 describes the synthesis and characterization of a dysprosium bis-borolide single molecule magnet. This compound was found to have an operating temperature of 65 K, which is on par with the best performing dysprosocenium magnets. Computational analysis on the complex showed how substituent modification may be a viable method to increase the blocking temperature of these compounds moving forward.Chapter 5 describes the synthesis and characterization of a series of lanthanide benzene inverse sandwich compounds. The experimental characterization and computational analysis performed suggests that the central benzene is a tetra-anion stabilized by a rare δ bonding interaction with its adjacent lanthanide ions.
- 일반주제명
- Inorganic chemistry
- 일반주제명
- Chemistry
- 일반주제명
- Analytical chemistry
- 키워드
- Lanthanides
- 키워드
- Magnetism
- 키워드
- Metalloligands
- 키워드
- Borole dianions
- 기타저자
- University of California, Berkeley Chemistry
- 기본자료저록
- Dissertations Abstracts International. 86-03B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211150918
■006m o d
■007cr#unu||||||||
■020 ▼a9798384447153
■035 ▼a(MiAaPQ)AAI30817905
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a546
■1001 ▼aVincent, Alexandre H.
■24510▼aSynthesis and Characterization of Lanthanide Single Molecule Magnets With Unconventional Ligands
■260 ▼a[Sl]▼bUniversity of California, Berkeley▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a253 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-03, Section: B.
■500 ▼aAdvisor: Long, Jeffrey R.
■5021 ▼aThesis (Ph.D.)--University of California, Berkeley, 2024.
■520 ▼aThe synthesis and characterization of several lanthanide single molecule magnets and a related series of benzene bridged lanthanide compounds are described in this dissertation. Previously overlooked ligand types, namely metalloligands and borole dianions, are shown to improve the operating temperature of lanthanide single molecule magnets by slowing thermally independent relaxation. This dissertation also touches upon a rare example of a highly covalent lanthanide arene interaction in a series of lanthanide benzene inverse sandwich compounds.Chapter 1 introduces single molecule magnetism and provides relevant background information regarding their electronic structure. The figures of merit used to evaluate the performance of different compounds are defined and important milestones in the field are discussed.Chapter 2 describes the synthesis and characterization of a series of tetrathiotungstate bridged lanthanide complexes. The magnetic characterization of these compounds and their comparison with isostructural tetrathiomolybdate complexes reveals that relativistic effects impact the magnetic exchange interaction between the bridge electron and the adjacent lanthanides.Chapter 3 details the synthesis and characterization of a series of cobalt bis-(1,2-diphenyldithiolate) bridged lanthanide complexes as well as their post synthetic reduction. The dysprosium congener of this complex exhibited single molecule magnetism with suppressed temperature independent relaxation.Chapter 4 describes the synthesis and characterization of a dysprosium bis-borolide single molecule magnet. This compound was found to have an operating temperature of 65 K, which is on par with the best performing dysprosocenium magnets. Computational analysis on the complex showed how substituent modification may be a viable method to increase the blocking temperature of these compounds moving forward.Chapter 5 describes the synthesis and characterization of a series of lanthanide benzene inverse sandwich compounds. The experimental characterization and computational analysis performed suggests that the central benzene is a tetra-anion stabilized by a rare δ bonding interaction with its adjacent lanthanide ions.
■590 ▼aSchool code: 0028.
■650 4▼aInorganic chemistry
■650 4▼aChemistry
■650 4▼aAnalytical chemistry
■653 ▼aLanthanides
■653 ▼aMagnetism
■653 ▼aMetalloligands
■653 ▼aBorole dianions
■690 ▼a0488
■690 ▼a0486
■690 ▼a0485
■71020▼aUniversity of California, Berkeley▼bChemistry.
■7730 ▼tDissertations Abstracts International▼g86-03B.
■790 ▼a0028
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17160145▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
