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Elucidating the Role of Transition Metal Electronic Structure in Catalysis and Spin Relaxation
Elucidating the Role of Transition Metal Electronic Structure in Catalysis and Spin Relaxa...
Elucidating the Role of Transition Metal Electronic Structure in Catalysis and Spin Relaxation

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자료유형  
 학위논문 서양
최종처리일시  
20260202104750
ISBN  
9798290652016
DDC  
537.5
저자명  
Luedecke, Kaitlin M.
서명/저자  
Elucidating the Role of Transition Metal Electronic Structure in Catalysis and Spin Relaxation
발행사항  
[Sl] : California Institute of Technology, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
138 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-01, Section: B.
주기사항  
Advisor: Hadt, Ryan.
학위논문주기  
Thesis (Ph.D.)--California Institute of Technology, 2025.
초록/해제  
요약Transition metal complexes are the workhorses of physical inorganic chemistry and have diverse applications in catalysis and quantum information science, especially. The primary descriptor of transition metal complexes, and a good predictor of their utility, is their electronic structure. Notably, rigorous characterization of the spin states, oxidation states, excited states, and magnetic properties of these complexes is necessary to gain mechanistic detail for these applications; this thesis focuses on elucidating the role of transition metal electronic structure in catalysis and spin relaxation. Chapter 1 introduces important transition metal electronic structure considerations and motivates these studies. Part I includes Chapters 2-4 and considers complexes relevant for CO₂ reduction chemistry and cross-coupling reactivity. Chapter 2 investigates the conditions under which a CO₂ reduction catalyst, Fe-p-TMA, undergoes speciation changes and characterizes its excited-state identities and lifetimes. Chapter 3 considers the electrochemical conditions under which highly reduced CO reduction products are generated in an iron porphyrin system, and important connections to photocatalysis are made. Chapter 4 compares the excited-state identities and reactivities of prototypical and tethered Ni(II)-bpy aryl halide complexes. Part 2 includes Chapters 5-6 and focuses on spin relaxation, a key figure of merit in quantum information science. Chapter 5 investigates the effect of structural distortions in S = ½ copper porphyrin systems on their spin-lattice relaxation times, and Chapter 6 moves to identifying the mechanism of spin relaxation in an S = 1 Cr(o-tolyl)₄ system. Together, these compiled studies reveal the nuanced roles of transition metal electronic structure in catalysis and spin relaxation and highlight the importance of their characterization for developing optimized systems.
일반주제명  
Electrons
일반주제명  
Investigations
일반주제명  
Writing
일반주제명  
Electrodes
일반주제명  
Nuclear magnetic resonance--NMR
일반주제명  
Symmetry
일반주제명  
Carbon monoxide
일반주제명  
Hydrogen
일반주제명  
Families & family life
일반주제명  
Chemistry
일반주제명  
Copper
일반주제명  
Chromatography
일반주제명  
Potassium
일반주제명  
Climate change
일반주제명  
Mass spectrometry
일반주제명  
Carbon dioxide
일반주제명  
Anisotropy
일반주제명  
Catalysis
일반주제명  
Information science
기타저자  
California Institute of Technology Chemistry and Chemical Engineering
기본자료저록  
Dissertations Abstracts International. 87-01B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

 008260126s2025        us                              c    eng  d
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■006m          o    d                
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■020    ▼a9798290652016
■035    ▼a(MiAaPQ)AAI32151328
■035    ▼a(MiAaPQ)Caltech17243
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a537.5
■1001  ▼aLuedecke,  Kaitlin  M.
■24510▼aElucidating  the  Role  of  Transition  Metal  Electronic  Structure  in  Catalysis  and  Spin  Relaxation
■260    ▼a[Sl]▼bCalifornia  Institute  of  Technology▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a138  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-01,  Section:  B.
■500    ▼aAdvisor:  Hadt,  Ryan.
■5021  ▼aThesis  (Ph.D.)--California  Institute  of  Technology,  2025.
■520    ▼aTransition  metal  complexes  are  the  workhorses  of  physical  inorganic  chemistry  and  have  diverse  applications  in  catalysis  and  quantum  information  science,  especially.  The  primary  descriptor  of  transition  metal  complexes,  and  a  good  predictor  of  their  utility,  is  their  electronic  structure.  Notably,  rigorous  characterization  of  the  spin  states,  oxidation  states,  excited  states,  and  magnetic  properties  of  these  complexes  is  necessary  to  gain  mechanistic  detail  for  these  applications;  this  thesis  focuses  on  elucidating  the  role  of  transition  metal  electronic  structure  in  catalysis  and  spin  relaxation.  Chapter  1  introduces  important  transition  metal  electronic  structure  considerations  and  motivates  these  studies.  Part  I  includes  Chapters  2-4  and  considers  complexes  relevant  for  CO₂  reduction  chemistry  and  cross-coupling  reactivity.  Chapter  2  investigates  the  conditions  under  which  a  CO₂  reduction  catalyst,  Fe-p-TMA,  undergoes  speciation  changes  and  characterizes  its  excited-state  identities  and  lifetimes.  Chapter  3  considers  the  electrochemical  conditions  under  which  highly  reduced  CO  reduction  products  are  generated  in  an  iron  porphyrin  system,  and  important  connections  to  photocatalysis  are  made.  Chapter  4  compares  the  excited-state  identities  and  reactivities  of  prototypical  and  tethered  Ni(II)-bpy  aryl  halide  complexes.  Part  2  includes  Chapters  5-6  and  focuses  on  spin  relaxation,  a  key  figure  of  merit  in  quantum  information  science.  Chapter  5  investigates  the  effect  of  structural  distortions  in  S  =  ½  copper  porphyrin  systems  on  their  spin-lattice  relaxation  times,  and  Chapter  6  moves  to  identifying  the  mechanism  of  spin  relaxation  in  an  S  =  1  Cr(o-tolyl)₄  system.  Together,  these  compiled  studies  reveal  the  nuanced  roles  of  transition  metal  electronic  structure  in  catalysis  and  spin  relaxation  and  highlight  the  importance  of  their  characterization  for  developing  optimized  systems.
■590    ▼aSchool  code:  0037.
■650  4▼aElectrons
■650  4▼aInvestigations
■650  4▼aWriting
■650  4▼aElectrodes
■650  4▼aNuclear  magnetic  resonance--NMR
■650  4▼aSymmetry
■650  4▼aCarbon  monoxide
■650  4▼aHydrogen
■650  4▼aFamilies  &  family  life
■650  4▼aChemistry
■650  4▼aCopper
■650  4▼aChromatography
■650  4▼aPotassium
■650  4▼aClimate  change
■650  4▼aMass  spectrometry
■650  4▼aCarbon  dioxide
■650  4▼aAnisotropy
■650  4▼aCatalysis
■650  4▼aInformation  science
■690    ▼a0404
■690    ▼a0723
■690    ▼a0485
■71020▼aCalifornia  Institute  of  Technology▼bChemistry  and  Chemical  Engineering.
■7730  ▼tDissertations  Abstracts  International▼g87-01B.
■790    ▼a0037
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358775▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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