- published: 23 Mar 2011
- views: 2063
An adduct (from the Latin adductus, "drawn toward") is a product of a direct addition of two or more distinct molecules, resulting in a single reaction product containing all atoms of all components. The resultant is considered a distinct molecular species. Examples include the adduct between hydrogen peroxide and sodium carbonate to give sodium percarbonate, and the addition of sodium bisulfite to an aldehyde to give a sulfonate. It can just be considered as a single product resulting from direct addition of different molecules and constitutes all the reactant molecules' atoms.
Adducts often form between Lewis acids and Lewis bases. A good example is the formation of adducts between the Lewis acid borane and the oxygen atom in the Lewis bases, tetrahydrofuran (THF): BH3•O(CH2)4 or diethyl ether: BH3•O(CH3CH2)2.
THF molecule
THF molecule
BH3 molecule
BH3 molecule
Lewis adduct between BH3 and THF,
Compounds or mixtures that cannot form an adduct because of steric hindrance are called frustrated Lewis pairs.
William "Bill" Braunstein (born July 14, 1972), better known as Ill Bill, is an American rapper and record producer from Brooklyn, New York. Having gained notoriety in the underground hip hop group Non Phixion, Ill Bill is known for his diverse lyrics and as the producer, founder and CEO of Uncle Howie Records. His brother Ron is also a rapper and producer, known as Necro.
In late 1994, MC Serch (of 3rd Bass fame) took his protégé Sabac Red and teamed him up with DJ Eclipse and Ill Bill, thereby creating the group known as Non Phixion. Within six months Goretex, a childhood friend of Ill Bill, had joined the crew after freestyling for MC Serch. MC Serch did not appear in Non Phixions first album "The Future Is Now". Non Phixion made two studio albums and a promotional tape named "The Past, The Present And The Future Is Now" that was released before their first album "The Future Is Now", all Non Phixion's work is highly regarded in the underground hip hop scene. Ill Bills brother Necro produced a lot of material for Non Phixion, including most of "The Past, The Present And The Future Is Now" and several other tracks from "The Green CD" and "The Future Is Now".
http://www.mindbites.com/lesson/4815 for full video. Check out http://www.mindbites.com/series/549-chemistry-full-course for a comprehensive video-based chemistry course or http://www.mindbites.com/category/24-chemistry for additional individual video lessons on specific Chemistry concepts and topics of study.
We create mandelic acid by first forming the bisulfite adduct of benzaldehyde, reacting this with sodium cyanide, then hydrolysing the intermediate mandelonitrile. We obtain a 42% yield of pure product using a solvent extraction and cleaning process (no benzene!).
We prepare the crystalline adduct of urea and hydrogen peroxide, a useful reagent which offers the oxidising power of concentrated hydrogen peroxide in a more safe form. We then explore to see how the solid decomposes in contact with a catalytic amount of manganese dioxide.
Speaker: Mary Biancalana, MS, CMTPT, LMT Mary is currently the owner and director of therapy for Trigger Point Sports Performance in Chicago, Illinois. She has treated and been endorsed by members of the Chicago Bears Football Team. She has traveled all over the country teaching the Trigger Point Therapy Protocol to licensed health care professionals including Licensed Massage Therapists, Athletic Trainers, PT’s , OT’s MD’s, DC’s, DO’s, NP’s, and Nurses. Join us for a free 1 hour webinar sponsored by Custom Craftworks, a brand of Pivotal Health Solutions and while geared for Physical Therapists, Athletic Trainers, Personal Trainers and Massage Therapists. Anyone can use this information to better understand how myofascial dysfunction can impact athletes, exercisers and everyone. Muscles...
Start Training to Ride Better Ankle Strengthening Exercises for Snowboarders This is Jason Maher, Performance Coach at EZIA and today I would like to share with you some ankle strengthening exercises for snowboarders. I grew up in the northeast and if you have spent many winters in that area, you know there is not much to do outside if you don't like the cold and snow. For as long as I can remember, snowboarding has been my winter sport of choice. I picked up the hobby as a kid and it has been a pure joy to see how it has progressed into a more recognized sport since then. With the high rate of progression, sport specific training is becoming a huge advantage for riders. On Tuesday, we released Jussi Oksanen's testimonial video, where you can see high-performance training specifically d...
LYRICS : (Ill Bill) I'm the creep I'm the master snatch the disease from the lab I chop my enemies in half with guillotines and laugh I speaks the language anguish poppin off your tops splatterin faggots A fuckin bloodbath of madness When I'm mad I throw tantrums with automatics Put pubescent bitches in torture adducts Worse than any thought you could imagine Kidnapped an entire school of bible kids The ransom is a stolen statue of black market software microchips I'm known to rob banks with lap tops cuz I'm home with the have nots Result of the drinkin blood like tampons We blood thirstier than vampires Blastin the red from head to toe spit the chrome untill my hands tired My reign of blood from elacerated sky Blastin guns and knives a hatred that you're fascinated by Its raining blood ...
Gabrielle shows us some exercises that can help pregnant clients with scapular adduction.
This exercise is called 21s simply because you will be doing a total of 21 reps. The first 7 are of the bottom half keeping your elbows back. The next 7 reps are the top half coming down only half way. The last 7 are full reps concentrating on sweeping your arm forward to engage the long he'd of the bicep as you adduct the humerus forward while curling the weight. It is a slight move and may not be detected unless looking for it but if you are conscious of doing that while lifting you will feel the added challenge and emphasis on the biceps.
Pour la manifestation Mont de Marsan sculpture, voici une une grande partie du montage d'une installation AIAA. Structure composée d'éléments sanitaires et de structures d'adduction d'eau dont les débits varient en intensité. Elle bruisse doucement pour permettre au passant d'apprécier ce fouillis d'écoulements, et mettant en image notre usage quotidien et immodéré de la ressource en eau potable. pisser fièrement dans l'eau potable : quel privilège !
Last night on the 2, ride home. I swear man I saw an angel.
But when I looked again man, it was just another stranger.
Last night I saw liquor land, man I had a big mission.
13 horsemen riding on and off wind, so I turn my color to the gold.
Got back in my ride, turn up that stereo.
Man what do you have, that you don't need.
We need it all down here!
Temptation, redemption, the Bottle and the Cross.
Life's illusion, from everything you've done.
And somewhere out there,
I hear a SCREAM!
Last night in brigham circle the devil tried to mug me.
And I said: "Man what do I got, you don't got allready?"
You know he looked up to me and said: "Maybe you're right"
Maybe I got something else for you tonight,
He said: "Man what do you need, that you don't own?"
"We got it all down here!"
Temptation, redemption, the Bottle and the Cross.
Life's illusion, from everything you've done.
And somewhere out there over the airwaves,
I hear a SCREAM!
And when the music takes control, it's allright by me.
Ooh another moon rise competing with the lights of the bright city.
Caught between the drum and the baseline, you know it's allright.
SAM System homing like a 737's come to take me back home.