Generally, Lewis bases are recognizable because they have lots of electrons, so we call them electron rich. Other Lewis bases are negatively charged atoms like chloride, or groups of atoms like hydroxide. Lewis bases often include atoms with lone pairs like nitrogen and oxygen - for example, ammonia and water are Lewis bases. Specifically, Lewis acids accept a lone pair of electrons and Lewis bases donate a lone pair of electrons. But there are molecules out there called Lewis acids and bases, which accept or donate electron pairs instead of protons. In the last episode, we discussed Brønsted-Lowry acids and bases, where the acid is a proton donor and the base is a proton acceptor. So, my fellow organophiles, let's get to it!. Now it's time to think about what happens at these hot spots - electrophiles and nucleophiles. Over the last few episodes we've been thinking about molecular hot spots, places on a molecule where positive charges and negative charges show up. In this episode though, we'll specifically be looking at two very important philes: electrophiles, lovers of electrons and nucleophiles, lovers of a molecule's positive regions. And maybe we can call ourselves organophiles, as people who love organic compounds. I might consider myself a bibliophile and ailurophile, to profess my love of books and cats. There's a philodendron, which is a plant that loves to climb trees, or technophile, which describes a lover of new technologies. Hi! I'm Deboki Chakravarti and welcome to Crash Course Organic Chemistry! The word stem -phile, which is derived from the Greek “philos,†meaning “loving,†has been used with other prefixes or suffixes to suggest the love of just about everything. You can review content from Crash Course Organic Chemistry with the Crash Course App, available now for Android and iOS devices. Want to find Crash Course elsewhere on the internet? Jennifer Killen, Sarah & Nathan Catchings, Brandon Westmoreland, team dorsey, Trevin Beattie, Eric Prestemon, Sam Ferguson, Yasenia Cruz, Eric Koslow, Indika Siriwardena, Khaled El Shalakany, Shawn Arnold, Tom Trval, Siobhán, Ken Penttinen, Nathan Taylor, William McGraw, Justin Zingsheim, Andrei Krishkevich, Jirat, Brian Thomas Gossett, SR Foxley, Ian Dundore, Jason A Saslow, Jessica Wode, Mark, Caleb Weeks, Sam Buck Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:Ĭatherine Conroy, Patty Laqua, Leonora Rossé Muñoz, Stephen Saar, John Lee, Phil Simmons, Alexander Thomson, Mark & Susan Billian, Junrong Eric Zhu, Alan Bridgeman, Jennifer Smith, Matt Curls, Tim Kwist, Ron Lin, Jonathan Zbikowski. Watch our videos and review your learning with the Crash Course App!Ĭrash Course is on Patreon! You can support us directly by signing up at Pearson Education, Inc., United States, 2013. Roberts and Company Publishers, Colorado, 2009. Pearson Education, Inc., United States, 2014.Ĭlayden, J., Greeves, N., Warren., S., Organic Chemistry, 2nd ed. Cengage Learning, Boston, 2018.īruice, P. We’ll also learn about what IR spectra can tell us about reactions, and how cyanide is more than just a poison from mystery stories. This episode of Crash Course Organic Chemistry is all about nucleophiles and electrophiles, or what happens at those molecular hot spots we’ve been talking about. Organic reactions are kind of like carefully choreographed fight scenes, and nucleophilic attack is a key move.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |