E/Z Absolute Configuration of Alkenes

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E/Z Absolute Configuration of Alkenes

Рет қаралды 196,381

Күн бұрын

It's EZ to assign E and Z absolute configuration to alkenes. Guess which convention we get to use? Cahn-Ingold-Prelog is back! Don't forget, zee zame zide. You have to say it with a German accent, or you lose points on the quiz.
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Пікірлер: 167

@arandomcatwithagun2680 2 жыл бұрын

I'm so glad that i can learn chemistry from Jesus.

@alinakati1993 8 жыл бұрын

Since there's no equally fantastic OC Channel in german, I always watch your videos and its sooooo cute how you pronounce the german words in this one haha. Keep up the good work, you're great!

@ProfessorDaveExplains 8 жыл бұрын

haha why thank you! my dad lives in Aachen say hello for me :) and feel free to correct my pronunciation, i want to be authentic!

@thepassion1243 7 жыл бұрын

Professor Dave Explains hello Dave can you do some tutorial in stereochemistry models and mykayama and Suzuki reaction

@onslaabidi5254 7 жыл бұрын

haha i thought the same especially Zusammen

@borwinbandelow2781 7 жыл бұрын

I had no idea that the origin of E/Z really is german... I thought its just a crib from our chemistry teacher xD

@jchae9820 4 жыл бұрын

a medical student who's forever thankful you are GREAT sir

@valeriemel4887 6 жыл бұрын

Just discovered theses OC videos and you do such an amazing job! Not only do you explain the topic clearly, but you answer all the questions, in advance, that I may have. You're super enthusiastic and these videos really did help me a lot!! Thanks Professor Dave :)

@reikunwar174 4 жыл бұрын

You explained a thing in 6.00 minutes what my professor wasnt able to do in 2 hours and still i undertood more during this 6 minutes than i did during the 2 hours. Thank you!

@hananzbrower8778 Жыл бұрын

Thank you for using complicated examples like the ones you'd actually see on an exam!

@xander7165 7 жыл бұрын

the first half of my semester in organic chemistry was so difficult :( now that i've found this channel all those lessons now seem easy. Thank you!!!

@DaLokNessMonster 7 жыл бұрын

I watch your videos because I love your lil intro , you also explain things so well thanks a lot!!

@mirelaratu3113 6 жыл бұрын

I am a romanian living in Italy and I watch your great videos that are such a fortune to me! Thank u

@Evendur96 8 жыл бұрын

The E/Z nomeclature is the first thing in chemistry I saw where it helps to speak german :D And thank you very much, there aren't any good videos about organic chemistry in german ;) And btw, the way you pronounce "entgegen" sounds very authentic but the Z in "zusammen" is a bit too soft (as it often is used in the englisch language), but in german language, it sounds more like "tsusammen" if you know what I mean :D

@ProfessorDaveExplains 8 жыл бұрын

haha i will work on it!

@willichnichwissen 8 жыл бұрын

it is sooo sweet to hear you say "susammen"! so, dont change it ;)

@princessTJrulz 5 ай бұрын

Had a trouble finishing an assignment quiz getting due tonight with this. Now it's all sorted. Thank You !!

@FatimaKhan-mc1oi 6 жыл бұрын

ZEE ZAME ZIDE DAVE IS MY HERO AND MY SAVIOR

@hawraaarkan8300 2 жыл бұрын

6 years later & I am still learning from your KZfaq channel , Tank you

@EmilyBenson1998 3 жыл бұрын

You’re the best chemistry professor on KZfaq!

@Siliziumwesen 9 жыл бұрын

Jesus.. why I just dint watch your video instead of reading the crap my proffesor gave me... understood this in 6mins (Thank you Prof Dave!!)

@alalalvita1863 7 жыл бұрын

yes,he is jesus

@VerenaKing 2 жыл бұрын

Thank you SOOOOO much! This is the first video I've watched that SIMPLIFIES it. Much appreciated!

@lucasmabokomabudu3331 6 жыл бұрын

your videos really helps me to understand the chapter before i go into the study guide or any study material keep up the good work....may God bless you.

@midnight5142 4 жыл бұрын

Something that my professor took 2 50 minute lectures to explain you did in 6 minutes and made it much more clear. Thank you sir.

@lilynichols5208 4 жыл бұрын

Thank you so much for taking the time to make these videos! Some of the other youtube videos that exist out there simplify it a little too much and I still don’t understand the complicated terminology that my professor/ book uses, but you use that nomenclature while still giving an in-depth explanation making it easy to understand!

@eliaswilliamsson8553 4 жыл бұрын

Thank you! Studying for my organic chem test and your videos really help!!

@michellelee374 8 жыл бұрын

Hey Prof Dave! Really appreciate your organic chem videos. Keep it coming :)

@mke_gal 7 жыл бұрын

I love your videos. They've helped me grasp o'chem much more easily. Thank you!

@Parralyzed 8 жыл бұрын

Love your German

@michaelleonardlubiano3912 6 жыл бұрын

Thank you Prof. Dave for helping me to understand the E/Z alkene easier. Thanks!

@DerDrako 2 жыл бұрын

For me as a german, E for entgegen and Z for zusammen, were just ideas in my head to remember the letters. Awesome that the realy derive from these words. :D

@rahulkhan1850 2 жыл бұрын

I'm from India. 👌very good teaching us sir

@patrycja1867 2 ай бұрын

you're saving my academic life. thank you!!!!

@OnyxProducts 9 жыл бұрын

Nice! Clear and helpfully visual. Helped me learn the concept. Finals are coming!!

@kidyayana1048 6 ай бұрын

Thank you for your easy explanation

@ojasviagrawal8109 Жыл бұрын

Found this channel recently, loved the explanations in organic chemistry and physics. ❤

@Paraselene_Tao 2 жыл бұрын

Dave, I appreciate everything you do. You might want to place this E/Z video before the Zaitsev and Hofman Elimination video. Thanks.

@user-ef6ye8he4j 5 жыл бұрын

Thanks a lot!

@FaithVicente Ай бұрын

Professor Dave saves the day!

@ellesrevisionsession 8 жыл бұрын

Excellent explanation. Thank you

@khaledyasser8293 5 жыл бұрын

What if the groups tied again? So if was C,C,H and C,C,H. Which groups do we compare?

@ProfessorDaveExplains 5 жыл бұрын

then keep going until there is a point of difference

@boneyfish2306 2 ай бұрын

"zee zame zide" is really funny and thats why I'll never forget it

@chetanchauhan2856 3 жыл бұрын

2:18 Are'nt we supposed to consider atomic number instead of atomic mass?

@ProfessorDaveExplains 3 жыл бұрын

Yes, my bad.

@chetanchauhan2856 3 жыл бұрын

@@ProfessorDaveExplains Np ..love u, from India

@JusticeBekoe-Kumah 22 күн бұрын

(2Z,5E)-3,7-dimethyloct-2,5-dienol

@joshualeong7894 3 жыл бұрын

4:12 important point on ties in E/Z isomers

@user-sj7fu4kp7x 11 ай бұрын

"Zee zame zide". I'll never forget that . Thank you:)

@greatucome1549 5 ай бұрын

Man you saved me from organophobia

@salomenjeri2281 Жыл бұрын

Once again, professor Dave saves the day...

@rapid__gamer1778 3 жыл бұрын

If on one side there are compound of same priority then how to name E And Z

@masoomahamza8383 2 жыл бұрын

I was Super confuse thanks for CIearing everything up

@katiefredriksen7363 3 жыл бұрын

you are saving my A Level chemistry! thank you!!

@MTRiderJanis 8 жыл бұрын

you explain great! Even I (I´m from Germany) can understand it although I´ve never learnd some of these technical terms :) thank you :D

@katherinecastro9136 5 жыл бұрын

i think your channel saved my life

@kevinfire98 8 жыл бұрын

Holy moly, you just save me for tomorrow's test

@tshepisomatshidiso1958 7 жыл бұрын

You are the best, Professor Dave. I will pray for you, Sir.

@alalalvita1863 7 жыл бұрын

he's actually jesus

@mksysinc Жыл бұрын

Great explanations, many thanks

@marvinne30412 3 ай бұрын

Some video said it's the atomic number, is it still correct to use atomic mass for determining E or Z?

@user-hk3fu2wy1y 7 жыл бұрын

Ohh you saved my life with this helpful video

@MareKholin 4 ай бұрын

What about alkenes in a ring? Would you still use E and Z?

@TheKinFly 5 жыл бұрын

Thank you so much for your work. Zeezamezide, I'll never forget that :D

@mountcarmel7116 3 жыл бұрын

Thank you!

@supb1437 7 жыл бұрын

Thank you for the mnemonic, Zcience Jezuz.

@annjemah6064 20 күн бұрын

thank you

@EnsarAcemi 8 жыл бұрын

Thanks professor, appreciate it.

@ariellep5665 9 жыл бұрын

Thank you for the very helpful video! I now understand how to assign E and Z configuration! Do you have any suggestions for determining when a product demonstrates neither configuration? My textbook swears this is a thing, but I can't seem to figure out how anything could be neither E nor Z.

@ProfessorDaveExplains 9 жыл бұрын

Sally P the only way E/Z wouldn't apply would be if an alkene is monosubstituted or completely unsubstituted. as long as there is at least one substituent on each carbon, E/Z can be assigned.

@pamela9633 3 жыл бұрын

Thank you

@user-kt1vf5kd8q 3 жыл бұрын

The perfect explanation!

@user-tu3hc6vk9p Жыл бұрын

cant find video where you explain about cis and trans,please share link for it

@phenotypealpha 8 жыл бұрын

Thank you so much

@halidsufiyan3663 3 жыл бұрын

Very help full explanation thank you so much

@slowburn3r949 6 жыл бұрын

Thanks dave!

@scaleurd Жыл бұрын

life savior thanks!!!

@edenassraf5196 Ай бұрын

what if they're the same exact group on the side you're trying to determine between?!

@rassimsimou1594 Жыл бұрын

Good

@bonoloseanego9497 Жыл бұрын

Professor, @4:32 you said that carbon was bonded to 2 other carbons and a hydrogen, I'm probably wrong but I see it bonded to 1 carbon the cis-hydrogen and an implied hydrogen making that point also a tie forcing you to look at the iodine and therefore making it an E alkene as well. Someone please help.

@ProfessorDaveExplains Жыл бұрын

there are two methyls on that carbon

@Dd37511 10 ай бұрын

@@ProfessorDaveExplains I’m confused professor 😢 In the first one it true c,c,h But in second it c,c,I so I it higher So I think it should be E right?

@rittenbrake1613 6 жыл бұрын

zee same side is useful , thank you , I will leave as much as comment as I could to promote your channel , thank you Professor

@amanda_dela 4 жыл бұрын

Thanks prof

@ripan110 3 жыл бұрын

thank you for saving my life once again

@Isteshhad 8 жыл бұрын

Epic teaching !!

@TK-ox6mg 4 жыл бұрын

Why noone said zusammen translates ,,together"?

@cdawg2923 3 жыл бұрын

thanks!

@siriponglerdpiriyavanich7905 Жыл бұрын

traditional thai medicine student owe you thankyou

@agshinyusifzada84 4 жыл бұрын

Professor what if branches have double or triple bonds?

@Adrian-mu2hv 8 ай бұрын

Thank you chemistry jseus

@fishmanhari 5 жыл бұрын

Thank you Prof!!!!

@devyndevyndevyn 6 ай бұрын

lol i also thought that its on zee same side, love the triple Z tho PD !!! thx again king

@mydogisagyminstructoritstr1933 3 жыл бұрын

Thank u

@Ps3COD4Fan 9 жыл бұрын

Tip: Zusammen sounds like "Zame Zame" (Same)

@ProfessorDaveExplains 9 жыл бұрын

***** that's right, as i say in the video, zee zame zide!

@Ps3COD4Fan 9 жыл бұрын

Professor Dave Explains You explained it so much better than my university professor, thanks!

@dilipuikey9407 6 жыл бұрын

Thanks you professor dave

@songohan393 4 жыл бұрын

You are a legend

@skullymanewhoa 6 жыл бұрын

We all knew that he was coming back to save us, but we didn't know that he was returning to redeem our GPA

@vatsalsheth7162 7 жыл бұрын

Can you please make a video on the difference between enantiomers , diasteriomers and epimers.

@ProfessorDaveExplains 7 жыл бұрын

i did that already!

@aimankhan2206 6 жыл бұрын

Just PERFECT👍

@hansiliyanage4681 11 ай бұрын

Ohh yeeeee.. thanks a lot 🙏

@tahabenabeid8071 8 жыл бұрын

I know that are right , however in my question paper , he asked me to assign configuration (E/Z/R/S) to Stereogenic centres and this molecule has got 2 doubles , how I can assign them in that case

@ProfessorDaveExplains 8 жыл бұрын

+Taha Benabeid stereocenters can be assigned R/S, double bonds are assigned E/Z, each of which will get its own designation

@tahabenabeid8071 8 жыл бұрын

how about if the molecule or the compound has contained 2 double bonds, which one we can use?

@ProfessorDaveExplains 8 жыл бұрын

+Taha Benabeid each double bond will have either E or Z configuration, assigned separately.