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X-ORIGINAL-URL:https://www.chemistry.ucla.edu
X-WR-CALDESC:Events for UCLA
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TZID:America/Los_Angeles
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DTSTART:20220313T100000
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DTSTART:20221106T090000
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221102T160000
DTEND;TZID=America/Los_Angeles:20221102T173000
DTSTAMP:20260614T015818
CREATED:20221027T171642Z
LAST-MODIFIED:20221027T171642Z
UID:25179-1667404800-1667410200@www.chemistry.ucla.edu
SUMMARY:Jeffrey I. Zink Inorganic Chemistry Seminar Series: Eszter Boros
DESCRIPTION:Flyer: Prof. Eszter Boros Flyer \nMeet the Speaker: 11 a.m.\, YH 3096 \nTitle: Capture\, Excite\, Release: Towards the Development of the Next Generation of Metal-based Medicines \nAbstract: Stable and radioactive metal ions possess attractive properties for biomedical imaging and therapy. Our lab applies a cross-disciplinary approach that combines physical inorganic chemistry\, coordination chemistry\, chemical biology and preclinical imaging to transform into tools for non-invasive diagnostic imaging\, optical probes for image-guided surgical resection and targeted radiotherapy of cancers. This presentation will introduce the concept and validation of 1) self-illuminated optical probes and 2) photochemical/thermally activated isotope capture and release systems for the synthesis of radiopharmaceuticals.
URL:https://www.chemistry.ucla.edu/seminars/jeffrey-i-zink-inorganic-chemistry-seminar-series-eszter-boros/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
CATEGORIES:Inorganic,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221103T160000
DTEND;TZID=America/Los_Angeles:20221103T170000
DTSTAMP:20260614T015818
CREATED:20220902T213619Z
LAST-MODIFIED:20221023T215743Z
UID:23350-1667491200-1667494800@www.chemistry.ucla.edu
SUMMARY:Houk-Jung Organic Colloquium 247: Robert Grubbs
DESCRIPTION:Robert Grubbs Flyer \nTitle: Investigating Aldehydes and Ketones as Monomers for Sustainable Polymers \nAbstract: Chain polymerization of carbonyl compounds results in polymers with acetal linkages in the backbone that have potential as degradable or recyclable materials. The wide variety of aldehydes and ketones that occur naturally or through sustainable transformations of naturally occurring compounds suggests that they also have promise as sustainable materials. There are many challenges associated with purifying aldehyde and ketone monomers and with controlling their polymerization. Glyoxylate esters are one such class of monomers that can be polymerized by treatment with bases\, but monomer purification is a critical issue and the polymerization mechanism has not been studied in detail. We will discuss our efforts to control the polymerization of glyoxylate esters from hydroxyl-terminated macroinitiators and to prepare a range of block copolymers with degradable polyglyoxylate blocks\, including polymers that form hydrogels. Efforts toward expanding these polymerization methods to include other monomers and investigating the sustainability of these methods will also be discussed.
URL:https://www.chemistry.ucla.edu/events/houk-jung-organic-colloquium-247-robert-grubbs/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
CATEGORIES:Organic Colloquium
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221107T160000
DTEND;TZID=America/Los_Angeles:20221107T170000
DTSTAMP:20260614T015818
CREATED:20220902T203929Z
LAST-MODIFIED:20221023T210949Z
UID:23320-1667836800-1667840400@www.chemistry.ucla.edu
SUMMARY:Physical Chemistry Seminar 228: Davit Potoyan
DESCRIPTION:Prof Potoyan Flyer \nTitle: Multi-Scale Computational Studies of Biomolecular Dynamics and Phase Separation \nAbstract: Cellular life is contingent on the ability of biomolecules to self-organize by forming dynamic and functional compartments. Uncovering the underlying driving forces for biomolecular self-organization is a long-standing fundamental problem for biological sciences. Experiments of the last decade have found that liquid-liquid phase separation of biomolecules underlies the formation of many mesoscopic cellular compartments. The ability to phase separation is encoded in the sequence of biomolecules. However\, in vivo biomolecules are phase-separated in heterogeneous and out of equilibrium environments\, further complicating the extraction of simple sequence-function relationships. Disentangling the roles of sequence and environment on biomolecular phase separation poses unique challenges for both theory and experiment\, which call for developing novel interdisciplinary multi-scale computational approaches. \nOur group is developing and applying multi-scale computational models that use atomistic\, coarse-grained\, and phase-field techniques to study nuclear  compartmentalization at different scales\, in and out of equilibrium. In the talk\, we will present recent results on protein-RNA phase transitions\, mesoscale nuclear dynamics of chromatin phase separation\, and detailed models of biomolecular condensates based on bioinformatics and atomistic simulations.
URL:https://www.chemistry.ucla.edu/events/physical-chemistry-seminar-228-davit-potoyan/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
CATEGORIES:Physical Chemistry Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221109T160000
DTEND;TZID=America/Los_Angeles:20221109T173000
DTSTAMP:20260614T015818
CREATED:20221027T172715Z
LAST-MODIFIED:20221102T001755Z
UID:25199-1668009600-1668015000@www.chemistry.ucla.edu
SUMMARY:The Chem Cell Press Lecture: Cathleen Crudden
DESCRIPTION:Flyer: Prof. Cathleen Crudden Flyer \nMeet the Speaker: 11:30 a.m.\, YH 3096 \nTitle: Metal catalysts\, clusters and surfaces: Cross coupling chemistry and the use of NHCs to form monolayers on surfaces and clusters \nAbstract: The use of N-heterocyclic carbenes to modify homogeneous metal catalysts is widespread since the high metal–NHC bond strength renders high oxidative and chemical stability to NHC–ligated metal complexes. Despite this fact\, the use of NHCs to modify metal surfaces has received little attention until recently. We will describe the use of NHC ligands to stabilize metal surfaces\, including Au(111)\, Cu(111)\, Pt(111) and other metals. Films prepared by the deposition of NHCs show molecular ordering on the surface and remarkable stability. The impact of NHCs on the chemistry of nanoclusters will also be discussed\, including the preparation of chiral NHC-stabilized Au nanoclusters. We will also describe advances in cross-coupling chemistry the preparation of complex chiral molecules of interest to the pharmaceutical industry. This will include the ability to cross-couple seemingly identical boron substituents with different electrophiles\, taking advantage of inherent differences in transmetallation behaviour. The development of novel electrophiles for Suzuki-Miyaura cross coupling chemistry particularly sulfones as electrophiles for alkyl cross-coupling reactions will also be described.
URL:https://www.chemistry.ucla.edu/seminars/the-chem-cell-press-lecture-cathleen-crudden/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
CATEGORIES:Inorganic,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221110T160000
DTEND;TZID=America/Los_Angeles:20221110T170000
DTSTAMP:20260614T015818
CREATED:20220902T213754Z
LAST-MODIFIED:20221023T215941Z
UID:23353-1668096000-1668099600@www.chemistry.ucla.edu
SUMMARY:Houk-Jung Organic Colloquium 247: Brett Fors
DESCRIPTION:Brett Fors Flyer \nTitle: Controlling Polymer Structure in Cationic and Radical Polymerizations \nAbstract: Synthetic polymers are significant importance in all aspects of modern life\, and during the last few decades\, these materials have facilitated major societal advances. Innovative polymeric materials have the potential to address humankind’s next grand scientific and technological challenges; however\, taking advantage of the opportunities presented by these materials requires new methods for gaining precise control of polymer structure and function. To address this challenge\, our research group focuses on the development of new synthetic methods and catalyst systems to control polymer architecture\, composition\, and function to yield next-generation materials. Specifically\, this presentation will detail (1) the development of polymerization reactions where polymer chain growth and sequence are regulated with external stimuli and (2) the development of user-friendly cationic polymerization processes that can be run open to the air without reagent purification.
URL:https://www.chemistry.ucla.edu/events/houk-jung-organic-colloquium-247-brett-fors/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
CATEGORIES:Organic Colloquium
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221114T150000
DTEND;TZID=America/Los_Angeles:20221114T155000
DTSTAMP:20260614T015818
CREATED:20220921T214630Z
LAST-MODIFIED:20220922T212412Z
UID:24050-1668438000-1668441000@www.chemistry.ucla.edu
SUMMARY:Organic Student Seminar 248: Jeremy Dworkin
DESCRIPTION:
URL:https://www.chemistry.ucla.edu/seminars/organic-student-seminar-2022-11-14/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
CATEGORIES:Organic,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221114T160000
DTEND;TZID=America/Los_Angeles:20221114T170000
DTSTAMP:20260614T015818
CREATED:20220902T204411Z
LAST-MODIFIED:20221023T211249Z
UID:23323-1668441600-1668445200@www.chemistry.ucla.edu
SUMMARY:Physical Chemistry Seminar 228: Natalie Banerejie
DESCRIPTION:Prof. Banerjie Flyer \nTitle: Organic Semiconductors in Electronics\, Photovoltaics and Bioelectronics \nAbstrac: Organic conjugated materials have many favourable properties that make them interesting for a variety of electronic applications. The aim of my group is to understand the fundamental processes underlying their functionality. We use ultrafast spectroscopic techniques\, such as transient absorption (TA) and time-domain terahertz (TD-THz) spectroscopies\, to investigate charge carriers in organic semiconductors. While femtosecond TA measurements bring insights to the nature and evolution of the photoexcited species\, we use TD-THz spectroscopy to gain information about the charge transport properties on the nanoscale. After presenting an overview of our experimental techniques\, I will show results about charge generation in highly efficient solar cell materials based on organic polymer:nonfullerene blends. The photophysical properties of doped organic semiconductors are then discussed\, as well as their applications to bioelectronic devices such as organic electrochemical transistors (OECTs). Finally\, ways to explore ultrafast spectroscopy to study such devices in operando are presented.
URL:https://www.chemistry.ucla.edu/events/physical-chemistry-seminar-228-natalie-banerejie/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221115T120000
DTEND;TZID=America/Los_Angeles:20221115T130000
DTSTAMP:20260614T015818
CREATED:20221107T171328Z
LAST-MODIFIED:20221107T172115Z
UID:26034-1668513600-1668517200@www.chemistry.ucla.edu
SUMMARY:Chem 218 Student Exit Seminar: Bosi Peng and Rongli Liu
DESCRIPTION:
URL:https://www.chemistry.ucla.edu/events/chem-218-bosi-peng-rongli-liu/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
CATEGORIES:Chem 218 Student Exit Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221116T160000
DTEND;TZID=America/Los_Angeles:20221116T173000
DTSTAMP:20260614T015818
CREATED:20221027T171833Z
LAST-MODIFIED:20221031T224822Z
UID:25184-1668614400-1668619800@www.chemistry.ucla.edu
SUMMARY:Jeffrey I. Zink Inorganic Chemistry Seminar Series: Emily Tsui
DESCRIPTION:Flyer: Prof. Emily Tsui Flyer \nMeet the Speaker: 11 a.m.\, YH 3096 \nTitle: Organometallic Chemistry at Quantum Dot Surfaces \nAbstract: Due to their tunable optoelectronic properties\, colloidal semiconductor quantum dot nanocrystals are useful in applications like displays\, photovoltaics\, and photocatalysis. Chemistry at nanocrystal surfaces\, including redox processes\, association/dissociation\, and other structural rearrangements\, has an outsize effect on the nanocrystal properties\, but is challenging to study with typical spectroscopic methods. We show that organometallic fragments like transition metal carbonyl complexes can act as strongly-bound X-type or Z-type ligands to the nanocrystal surfaces\, and that these species can be useful spectroscopic reporters of surface chemistry. These functionalized nanocrystals therefore enable in situ measurements of surface stoichiometry and surface charge under photoexcitation and during photocatalysis.
URL:https://www.chemistry.ucla.edu/seminars/jeffrey-i-zink-inorganic-chemistry-seminar-series-emily-tsui/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
CATEGORIES:Inorganic,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221117T100000
DTEND;TZID=America/Los_Angeles:20221117T110000
DTSTAMP:20260614T015818
CREATED:20221117T164817Z
LAST-MODIFIED:20221117T164817Z
UID:26221-1668679200-1668682800@www.chemistry.ucla.edu
SUMMARY:Special Physical Chemistry Seminar by Dr. Iain McKenzie
DESCRIPTION:
URL:https://www.chemistry.ucla.edu/events/special-physical-chemistry-seminar-by-dr-iain-mckenzie/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
CATEGORIES:Physical,Special Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221117T120000
DTEND;TZID=America/Los_Angeles:20221117T130000
DTSTAMP:20260614T015818
CREATED:20221107T171744Z
LAST-MODIFIED:20221107T171915Z
UID:26038-1668686400-1668690000@www.chemistry.ucla.edu
SUMMARY:Chem 218 Student Exit Seminar: Katie Perrotta
DESCRIPTION:
URL:https://www.chemistry.ucla.edu/events/chem-218-student-exit-seminar-katie-perrotta/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
CATEGORIES:Chem 218 Student Exit Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221117T160000
DTEND;TZID=America/Los_Angeles:20221117T170000
DTSTAMP:20260614T015818
CREATED:20220902T214234Z
LAST-MODIFIED:20221116T172931Z
UID:23355-1668700800-1668704400@www.chemistry.ucla.edu
SUMMARY:CANCELED: Houk-Jung Organic Colloquium 247: Elizabeth Gilles
DESCRIPTION:PLEASE NOTE THAT THIS EVENT HAS BEEN CANCELED \n  \n  \nProf. Gilles Flyer \nTitle: Self-Immolative Polymers: Chemical Designs and Applications \nAbstract: The development of degradable polymers is of significant interest across a wide range of fields from commodity plastics to medicine. Much progress has been made to date with conventional polyesters such as polylactide and polycaprolactone. However\, the ability to control the degradation of these polymers in different environments is limited and they may degrade more rapidly or more slowly than desired. Many stimuli-responsive polymers have been developed over the past couple of decades\, but these polymers typically require many stimuli-mediated events to achieve complete backbone degradation. Our team has been developing self-immolative polymers\, a recently established class of degradable polymers\, that undergo end-to-end backbone depolymerization in response to the cleavage of a single backbone bond or an end-cap from the polymer terminus\, thereby providing amplification of the stimulus-mediated event. This presentation will describe the development of different classes of self-immolative polymers\, as well as end-caps for these polymers\, which can be triggered under different conditions. Our progress in the synthesis of these polymers\, as well as their application in areas such as therapeutic delivery and medical imaging will be discussed.
URL:https://www.chemistry.ucla.edu/events/houk-jung-organic-colloquium-247-elizabeth-gilles/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
CATEGORIES:Organic Colloquium
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221121T150000
DTEND;TZID=America/Los_Angeles:20221121T155000
DTSTAMP:20260614T015818
CREATED:20220921T214630Z
LAST-MODIFIED:20220922T212506Z
UID:24051-1669042800-1669045800@www.chemistry.ucla.edu
SUMMARY:Organic Student Seminar 248: Emma Greene
DESCRIPTION:
URL:https://www.chemistry.ucla.edu/seminars/organic-student-seminar-2022-11-21/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
CATEGORIES:Organic,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221121T160000
DTEND;TZID=America/Los_Angeles:20221121T170000
DTSTAMP:20260614T015818
CREATED:20220902T204706Z
LAST-MODIFIED:20221023T215142Z
UID:23325-1669046400-1669050000@www.chemistry.ucla.edu
SUMMARY:Physical Chemistry Seminar 228: Vojtech Vleck
DESCRIPTION:Prof. Vlcek Flyer \nTitle: Excitation Dynamics Driving the Electronic Structure of Molecules and Solids \nAbstract: Capturing the dynamics of electronic excitations in realistic systems containing more than a few electrons is one of the outstanding theoretical challenges. Dynamical quantum correlations mediate interactions and couplings between multiple excited states in materials and represent an important driver of their optoelectronic characteristics. A predictive ab-initio theory is thus critical for understanding\, predicting\, and designing novel compounds with tailored (quantum) properties. I will discuss how to tackle the first-principles description of excitation dynamics in systems with thousands of electrons and study individual excited states\, including their non-trivial interactions. I will exemplify these approaches in practical applications to quantum materials\, e.g.\, exploring the correlated phenomena for localized moire states in twisted bilayer graphene and defect centers in diamond. Our theoretical framework uses real-time methods combined with ab-initio dynamical downfolding. Together with efficient low-scaling numerical techniques\, it is generally applicable to (quantum) material science and chemistry problems and constitutes an ideal platform for simulating complex nanoscale systems\, such as molecular assemblies or materials interfaces.
URL:https://www.chemistry.ucla.edu/events/physical-chemistry-seminar-228-vojtech-vleck/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
CATEGORIES:Physical Chemistry Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221128T150000
DTEND;TZID=America/Los_Angeles:20221128T155000
DTSTAMP:20260614T015818
CREATED:20220921T214630Z
LAST-MODIFIED:20220922T212707Z
UID:24052-1669647600-1669650600@www.chemistry.ucla.edu
SUMMARY:Organic Student Seminar 248: Gabriella Cooper
DESCRIPTION:
URL:https://www.chemistry.ucla.edu/seminars/organic-student-seminar-2022-11-28/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
CATEGORIES:Organic,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221130T160000
DTEND;TZID=America/Los_Angeles:20221130T173000
DTSTAMP:20260614T015818
CREATED:20221027T172328Z
LAST-MODIFIED:20221129T175724Z
UID:25189-1669824000-1669829400@www.chemistry.ucla.edu
SUMMARY:Jeffrey I. Zink Inorganic Chemistry Seminar Series: Megan Fieser
DESCRIPTION:Flyer: Prof. Megan Fieser Flyer \nMeet the Speaker: 11 a.m.\, YH 3096 \nTitle: Development of Catalytic Strategies for Advances in Polymer Sustainability \nAbstract: As we strive to support our busy and demanding lifestyles\, our dependence on disposable plastics has led to a global environmental crisis. The high stability of plastics to an array of conditions that was once highlighted as a value for commercialization has now become a serious flaw. Addressing this crisis is going to require collective efforts to recycle or upcycle the commercial products already produced at large scale and to develop more degradable or recyclable replacements. The Fieser group strives to achieve these ends through two research thrusts. In our polymerization thrust\, rare earth metal catalysts are being developed for the synthesis of degradable plastics through the perfectly alternating copolymerization of epoxides and cyclic anhydrides and the block copolymerization of 1\,3-dienes with cyclic esters. Using a host of complementary techniques\, we demonstrate the development of efficient synthetic methods\, thorough characterization of physical properties of the resulting polymers\, and proof-of-concepts for future recycling processes. In our depolymerization thrust\, we are exploring environmentally-friendly catalytic methods for the dechlorination of polyvinyl chloride\, with an emphasis on establishing control over product selectivity. Using both inorganic and organic catalyst systems\, we show facile tunability of the organic polymer product for potential assimilation to varying applications. Recent advances from both research thrusts will be discussed.
URL:https://www.chemistry.ucla.edu/seminars/jeffrey-i-zink-inorganic-chemistry-seminar-series-megan-fieser/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
CATEGORIES:Inorganic,Seminars
END:VEVENT
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