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DTSTART;TZID=America/Los_Angeles:20230123T150000
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UID:24060-1674486000-1674489000@www.chemistry.ucla.edu
SUMMARY:Organic Student Seminar 248: Madeline Ruos
DESCRIPTION:
URL:https://www.chemistry.ucla.edu/seminars/organic-student-seminar-2023-01-23/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
CATEGORIES:Organic,Seminars
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20230123T160000
DTEND;TZID=America/Los_Angeles:20230123T170000
DTSTAMP:20260614T015533
CREATED:20221222T224113Z
LAST-MODIFIED:20230110T221720Z
UID:26979-1674489600-1674493200@www.chemistry.ucla.edu
SUMMARY:Physical Chemistry 228: Dr.  Milena Jovanovic
DESCRIPTION:Dr. Jovanovic Flyer \nTitle: “Delocalized Bonding in Extended Systems: From Molecules to Quantum Materials” \nAbstract: A long list of words attached to extensions of two-center two-electron bonding\, such as\nconjugation\, aromaticity\, electron-deficient\, and electron-rich bonding\, testifies to the ubiquity of\nelectron delocalization and its importance in chemistry. Delocalization certainly has consequences – in\nspectroscopic\, ionization\, and magnetic questions the most prominently – both for discrete molecules\nand for polymers and extended solids. Moreover\, a complex relationship between delocalized bonding\nand quantum properties of extended solids has come to light in recent years. Understanding\ndelocalization mechanisms and how they interact with each other is crucial to designing new quantum\nmaterials.\nMy talk focuses on two cases of electron delocalization in materials: σ delocalization in\npermethylated polysilane and chemical bonding in kagome lattices. In the case of permethylated\npolysilane\, I will explain how strong conformational dependence of the polymer’s properties arises from\nan interplay of two delocalization mechanisms. In the case of compounds featuring the kagome lattice\, I\nwill derive chemical rules to predict if bonding within the lattice is possible and its relation to materials’\nproperties. Additionally\, I will briefly reflect on the other aspects of electron delocalization\, namely non-\ntrivial election localization in crystals and its consequences.
URL:https://www.chemistry.ucla.edu/events/physical-chemistry-228-dr-milena-jovanovic/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
CATEGORIES:Physical Chemistry Seminar
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