Podcasts about stereochemistry

The modern world runs on electronic devices and energy systems that are powered by valuable elements such as lithium and uranium. There are a limited number of terrestrial mines that produce energy-critical elements, which makes the supply of these materials prone to disruption. So researchers are looking to an unconventional source: seawater. Almost every element on the periodic table can be found in global oceans–but most are dissolved in ultralow concentrations. In this episode of Stereo Chemistry, we'll hear from scientists in the United States and European Union about why they're interested in extracting metals and minerals from seawater and how they're using chemistry to do it. A transcript of this episode will be available soon at cen.acs.org. Download the Chemistry News by C&EN mobile app for iOS and Android.  Learn more about lithium mining from our September 2022 episode. Credits Producers: Ariana Remmel, Kerri JansenWriter: Mitch JacobyAudio editor: Mark Feuer DiTusaStory editors: Gina Vitale, Craig BettenhausenCopyeditor: Sabrina AshwellShow logo design: William A. LudwigEpisode artwork: Shutterstock/C&EN StaffMusic (in order of appearance): “Daydream” by Ikoliks, “Distance” by Daniel BrownSound effects (in order of appearance): “Small waves, rocks and beach” from BigSoundBank.com Contact Stereo Chemistry: Tweet at us @cenmag or email cenfeedback@acs.org.

When two wastewater treatment facilities in Baltimore, Maryland, broke down in early 2021, the surrounding waterways began filling up with sewage. In this episode of Stereo Chemistry, C&EN business reporter Craig Bettenhausen takes the pod to visit the Back River Plant and Patapsco Plant in the Chesapeake Bay watershed to demystify how these facilities treat wastewater and take a deep dive into the chemistry behind enhanced nutrient removal systems. Chemical engineers, environmental advocates, and infrastructure experts explore what happens to aquatic ecosystems when wastewater treatment systems fail–and share their perspectives on reimagining wastewater as a chemical treasure trove in the future. Listen to our bonus episode with Kerri Jansen here: cenm.ag/jansen-podcast A transcript of this episode is available at https://cenm.ag/treatment. Credits Producers: Ariana Remmel, Kerri Jansen; Writer: Craig Bettenhausen; Audio editor: Mark Feuer DiTusa; Story editors: Ariana Remmel, Gina Vitale, Chris Gorski, Mike McCoy; Copyeditor: Sydney Smith; Show logo design: William A. Ludwig; Episode artwork: Craig Bettenhausen; Music (in order of appearance): "Refuge" by Walz, "Lunch Time" by Avner Kelmer

Lithium iron phosphate (LFP) batteries are cheaper, safer, and longer lasting than batteries made with nickel- and cobalt-based cathodes. In China, the streets are full of electric vehicles using this technology. But LFP never caught on as a chemistry for electric vehicle batteries in North America. In this episode, C&EN reporters Craig Bettenhausen and Matt Blois talk about the promise and risks of bringing lithium iron phosphate to a North American market. C&EN Uncovered, a new project from C&EN's podcast, Stereo Chemistry, offers another look at subjects from recent cover stories. Read Blois's Jan. 30, 2023, cover story about lithium iron phosphate at http://bit.ly/3nbMkpK. A transcript of this episode will be available soon at cen.acs.org. Credits Executive producer: Kerri Jansen C&EN Uncovered host: Craig Bettenhausen Cover story reporter: Matt Blois Audio editor: Mark Feuer DiTusa Story editor: Michael McCoy Copyeditor: Sabrina Ashwell Show logo design: William A. Ludwig Episode artwork: David Girai Photography Music: “Hot Chocolate” by Aves   Contact Stereo Chemistry: Tweet at us @cenmag or email cenfeedback@acs.org.

Replacing gas cars with electric ones is a main pillar of plans to fight climate change. But the lithium-ion batteries used in electric cars come with a cost. Communities near the Salar de Atacama in Chile, where about a quarter of the world's lithium is extracted from salty aquifers, say mining companies pose a serious threat to the local environment and their access to water. Mining companies strongly dispute those claims. In this episode of Stereo Chemistry, we'll explore the environmental factors at play in the salar and the differing perspectives on how best to measure impact. And we'll hear from a new group of mining start-ups that claim they can use chemical methods—as yet unproven—to extract lithium without the same impact on water.  This is the first episode in a new series exploring the future of water. A transcript of this episode, along with English translations of all Spanish dialogue, is available at bit.ly/3QGlQpu. Sign up for C&EN's email series “Advancing in the Art of Science Communication” at bit.ly/scicommadvanced. Credits Executive producer/host: Kerri Jansen Writer: Matt Blois Audio editor: Mark Feuer DiTusa Story editors: Michael McCoy, Manny I. Fox Morone, Ariana Remmel Sensitivity editor: Sofía Jarrín Audience editor: Dorea I. Reeser Copyeditor: Heather Holt Translator: Fernando Gomollón Bel, Juan José Sáenz de la Torre Logo design: William A. Ludwig Episode artwork: SQM Music (in order of appearance): "Tinker Toys" by Colton Dewberry, "Pebbles Dance" by Roie Shpigler, "Earth & Heavens" by Sémø and Ian Post, "Street Dreams" by Julian Hartwell, "There's No One Else Just Like Me" by Shahar Guttman, "Eternal Sunshine" by Stanley Gurvich Contact Stereo Chemistry: Tweet at us @cenmag or email cenfeedback@acs.org.

In this video we'll be comparing all the reactions (SN1, SN2, E1, and E2). Timestamp: (0:00) - Intro (0:33) - Rate Law differences (1:12) - Base/Nucleophile differences (2:33) - Substrate differences (4:07) -Solvent differences (4:53) -Stereochemistry differences (6:02) -Rearrangement differences

Visit https://thermofisher.com/bctl to register for your free Bringing Chemistry to Life T-shirt and https://www.alfa.com/en/chemistry-podcasts/ to access our episode summary sheet, which contains links to recent publications and additional content recommendations for our guest.The only chemistry we know is what we can experience on our planet, or is it? Brett McGuire is among the pioneers looking beyond the Earth's atmosphere and discovering a surprising and fascinatingly complex chemical world that defies imagination and provides intriguing new insights into the origin of the chemistry we know. In one of our most fascinating episodes yet, Paolo and Brett discuss astrochemistry, the study of chemistry in outer space. Chemistry in space is unique because it is atmosphere and solvation free, and temperature is really low. By scanning radio telescope spectra, astrochemists are discovering hundreds of complex organic molecules in the spaces between stars and are developing intriguing new theories on the origin of our chemical reservoir, the reasons for biological L- chirality, and how life could vary in different parts of the universe. If you're tempted to dismiss this as mere curiosity, you will be surprised by how efforts to study chemistry happening light years away from our planet are often the key to revolutionizing chemistry here on Earth.

In this episode, we'll be going over SN1 reactions and factors affecting it. (0:00) - Intro (0:24) -Definitions (Nucleophile, Electrophile, Leaving Group, Substrate) (0:40) - General SN1 reaction (1:05) -SN1 reaction - Headless Horseman Reaction (2:08)- Strength of Nucleophile (2:27)- Steric Effects of Electrophile (3:03)- Solvent 3:16- Leaving Group (3:42)- Hydride Shift (5:22)- Methyl Shift (5:48)- Stereochemistry (6:20)- SN1 Summary Sheet Check out the visual portion of this episode on our youtube: https://youtu.be/cr7salBKHPw

In this episode, we'll be going over SN2 reactions and the factors affecting it. (0:00)- Intro (0:22)- Definitions (Nucleophile, Electrophile, Leaving Group, Substrate) (0:40)- General SN2 reaction (2:24)- SN2 Reaction- The Great Rear Ended Car Crash (3:06)- SN2 and strength of nucleophile (3:58)- Steric effects of electrophile (4:55)- Solvents 6:03- Leaving Group (7:14)- Stereochemistry (8:24)- SN2 Summary Sheet Check out the visual aspect of this video on our youtube. https://youtu.be/tOgInZX4Xgo

This chapter has been described from the book "ORGANIC CHEMISTRY", written by Morrison and Boyd

This chapter has been described from the book, "ORGANIC CHEMISTRY", written by Morrison and Boyd

This chapter has been described from the book, "ORGANIC CHEMISTRY", written by Morrison and Boyd

This chapter has been described from the book, "ORGANIC CHEMISTRY", written by Morrison and Boyd

This chapter has been described from the book, "Organic Chemistry", written by Morrison and Boyd

Polymer chemistry has been one of the main disruptive forces in the last few decades, having a profound impact on materials used in all applications, enabling new technologies and profoundly impacting everyone’s life. Polymers are at the core of modern material science and despite having generated some concerning environmental challenges, it’s hard to imagine a future without them. Dr. Leibfarth is one of the most creative minds in polymer chemistry today and he is leading some incredible innovation in the way these materials are made and applied. He shares a fascinating story of elite collegiate American football, science, inspiration and creativity, as well as where different disciplines converge and provide the disruptive force to change paradigms. Paolo and Frank discuss stereo-controlled polymerization, novel functionalization, exploration of structure-function relationships, as well as Frank's personal and professional growth.

In this episode, Austin asks a question about Stereochemistry. This is a question you might see from the Chemical and Physical Foundations of Biological Systems section of the MCAT. This podcast is designed for Pre-medical students preparing to take their Medical College Admissions Test (MCAT). This episode is powered by Premed Consultants, an all-inclusive premed advising program. Whether you are starting out as a freshman or about to start prepping for the MCAT, the premed consultants will help you throughout your entire premed process until you get into medical school. Not only is there a full MCAT program utilizing the most effective study tactics, but they will also help you through the entire admissions process as well. If you're interested in one on one mentorship, go to thepremedconsultants.com and you can schedule a free 30 min strategy session to see if Premed Consultants is the right fit for you. If you have any suggestions, concerns, or question, feel free to e-mail us at mcatflashgo@gmail.com We wish you the best of luck on your educational journey!

In this podcast Mark and Jack have a conversation about the Dutch chemist Jakobus van't Hoff. His contributions toward a swath of foundational chemical principles is so noteworthy that it should be of no surprise that he received the very first Nobel Prize in Chemistry in 1901. Listeners to the podcast will learn about his efforts in both the organic and inorganic chemical fields. In organic chemistry, he pioneered the branch now called stereochemistry. In inorganic chemistry, he developed significant theories shedding light on the properties of solutions. Although his name may not be as familiar as other famous scientists, his influence compares to any. Click here to view the show notes.

Racemic Mixture

Die erste „Solaris Empire Lounge“ 2017 beginnt mit der reizenden Karla von Stereochemistry. In eigenen Worten beschreibt sie ihre Musik: „A one woman indie-pop-cabaret unstoppable gypsy madness“ Außerdem hat sie mit der UK-Techno-Legende Steven Rutter das Projekt „KineStatics“, von dem ihr auch etwas zu hören bekommt. Zu Gast sind auch Edwina & Deko. Die beiden aus Australien und Italien stammenden Musiker spielen im Duett, mit vielerlei Instrumenten, traumhaften Folk, in dem ihre Leidenschaft für die Musik der 60er widerhallt. Mehr Infos zu Stereochemistry: https://www.facebook.com/stereochemistry http://stereochemistrymusic.com Mehr Infos zu KineStatics: http://facebook.com/kinestatics http://kinestatics.com Steven Rutter: https://www.facebook.com/electrosoma Label: http://firescope.co.uk Mehr Infos zu Edwina & Deko: https://www.facebook.com/edwinadeko http://edwinadeko.blogspot.de Solaris Empire Lounge: Die „Solaris Empire Lounge“ ist die gemeinsame Show von Kitty Solaris, Musikerin, Labelchefin und Organisatorin der Konzertreihe „Lofi-Lounge“, die jeden 1.+ 3. Mittwoch im Schokoladen Mitte stattfindet und Susann Kirkuss, Redakteurin und Moderatorin bei diversen Radio-Projekten. Wir stellen Musik und Bands aus Berlin vor, die neuesten Solaris-Empire-Releases und internationale Bands, die zumeist in der „Lofi-Lounge“ im Schokoladen gastieren. Oft mit zwei tollen Live-Gästen und unserem legendären Quiz ... Ihr könnt die Sendung über ALEX offener Kanal Berlin hören: https://www.facebook.com/ALEX.berlin.de Alle früheren Shows hört ihr hier/listen to all former shows here: https://soundcloud.com/kirkuss-radio/…/solaris-empire-lounge Mehr Infos/for more information: Solaris Empire: http://www.solaris-empire.de/ Kirkuss Radio: https://www.facebook.com/KirkussRadio https://soundcloud.com/kirkuss-radio Schokoladen: http://www.schokoladen-mitte.de/

SN2 substitution provides an example of establishing the mechanism of a chemical reaction by disproving all the alternatives. Five general pathways are envisioned (two-step involving either pentavalent or trivalent carbon intermediates, and one-step). They can be discriminated by applying a variety of experimental tools including stereochemistry (Walden inversion), rate law (second order and pseudo first order), and the variation of rate constant with changes in the substrate (steric hindrance and ring strain), and with changes in nucleophile or leaving group. Classic experiments by Kenyon and Phillips and by Bartlett and Knox established the nature of Walden inversion. Complete course materials are available at the Open Yale Courses website: http://oyc.yale.edu This course was recorded in Spring 2011.

This video is part of a 28-lecture graduate-level course titled "Organic Spectroscopy" taught at UC Irvine by Professor James S. Nowick. The course covers infrared (IR) spectroscopy, mass spectrometry, and nuclear magnetic resonance (NMR) spectroscopy, the latter of which is the main focus. Topics covered in the NMR spectroscopy part of the course include chemical shifts, spin-spin coupling, dynamic effects in NMR spectroscopy, and 2D NMR spectroscopy (COSY, HMQC, HMBC, TOCSY, NOESY, ROESY).

This video is part of a 28-lecture graduate-level course titled "Organic Spectroscopy" taught at UC Irvine by Professor James S. Nowick. The course covers infrared (IR) spectroscopy, mass spectrometry, and nuclear magnetic resonance (NMR) spectroscopy, the latter of which is the main focus. Topics covered in the NMR spectroscopy part of the course include chemical shifts, spin-spin coupling, dynamic effects in NMR spectroscopy, and 2D NMR spectroscopy (COSY, HMQC, HMBC, TOCSY, NOESY, ROESY).

This video is part of a 28-lecture graduate-level course titled "Organic Spectroscopy" taught at UC Irvine by Professor James S. Nowick. The course covers infrared (IR) spectroscopy, mass spectrometry, and nuclear magnetic resonance (NMR) spectroscopy, the latter of which is the main focus. Topics covered in the NMR spectroscopy part of the course include chemical shifts, spin-spin coupling, dynamic effects in NMR spectroscopy, and 2D NMR spectroscopy (COSY, HMQC, HMBC, TOCSY, NOESY, ROESY).

http://webs.anokaramsey.edu/aspaas/2061/video/9.0%20Stereochemistry.m4v Sat, 06 Nov 2010 04:46:11 -0500 Higher Education

http://webs.anokaramsey.edu/aspaas/2061/video/4.0%20-%20Cyclohexanes%20and%20their%20stereochemistry.m4v Thu, 16 Sep 2010 07:17:09 -0500 Higher Educat

http://webs.anokaramsey.edu/aspaas/2061/video/3.1.m4v Tue, 07 Sep 2010 08:12:07 -0500 Higher Ed

Chirality; enantiomers; assigning configuration; diastereomers; meso compounds; racemic mixtures; stereochemistry of reactions

Cycloalkanes and their stereochemistry

Polar covalent bonds; Acids and bases

Stereochemistry, a set of three first year lectures.

Organic Chemistry Lecture 2 in Stereochemistry. Hybridisation, stereogenic centres and enantiomers. January 2008. Contact Dr Alan Spivey - a.c.spivey@imperial.ac.uk

Organic Chemistry Lecture 3 in Stereochemistry. Hybridisation, stereogenic centres and enantiomers. January 2008. Contact Dr Alan Spivey - a.c.spivey@imperial.ac.uk

Mechanisms and Stereochemistry

Metal Complexes of Biologically Important Ligands, LXX[1].- Synthesis, Stereochemistry and Reactions of Ruthenium(II) and Osmium(II) Complexes with -Amino Carboxylates[Note ][Herrn Professor Helmut Werner zum 60. Geburtstag gewidmet.] The reactions of MHCl(CO)(PPh3)3 with salts of -amino acids give the hydrido-N,O-chelate complexes MH(CO)(NH2CHR-COO)(PPh3)2 (1a-g;) M = Ru, Os). Complexes 1a-c can alternatively be prepared by oxidative addition of the appropriate -amino acid to Ru(CO)3(PPh3)2. The crystal structure of 1b has been determined by an X-ray structural analysis. The leucinato compound 1c is an effective catalyst for the decomposition of formic acid. In contrast, reactions of RuHCl-(CO)(PPh3)3 with -amino acids afford the chloro-N,O-che-late complexes RuCl(CO)(NH2CHRCOO)(PPh3)2 2a-h. The decomposition reactions of 2c, 2g and2h have been investigated.

Thu, 1 Jan 1987 12:00:00 +0100 http://epub.ub.uni-muenchen.de/2228/ http://epub.ub.uni-muenchen.de/2228/1/2228.pdf Fischer, R.; Madubunyi, I.; Scheer, Hugo Fischer, R.; Madubunyi, I. und Scheer, Hugo (1987): Stereochemistry of Two Hydroxybiflavanonols from Garcinia cola Nuts. In: Zeitschrift für Naturforschung C, Vol. 42c: pp. 855-857. Biologie

Using differently labelled precursors, it was established that rhododendrin (3-(4-hydroxyphenyl)-1-methylpropyl-β- -glucopyranoside) is formed through the phenylpropane pathway via p-coumaryl alcohol, dihydro-p-coumaryl alcohol and C-methylation of the γ-C-atom of the C6---C3 unit with methionine supplying the methyl group. It was demonstrated that the pro-(S)-hydrogen atom of dihydro-p-coumaryl alcohol is replaced stereospecifically by the methyl group.

Mon, 1 Jan 1973 12:00:00 +0100 http://epub.ub.uni-muenchen.de/2533/ http://epub.ub.uni-muenchen.de/2533/1/2533.pdf Wolf, H.; Scheer, Hugo Wolf, H. und Scheer, Hugo (1973): Stereochemistry and chiroptic properties of pheophorbides and related compounds. In: Annals of the New York Academy of Sciences, Vol. 206: pp. 549-567.