Nucleophiles and Electrophiles

[@TheOrganicChemistryTutor]

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My face when studying organic chemistry at 3:27

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[@MrAsffgf]

For the Ketone - H+ reaction in the last example, you can draw the resonance structure and find it's more stable for the positive charge to be at the carbon and have 2 lone pairs on O, making O neutral and C (which is less electronegative) carry the positive charge.

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Sir the way you explained made all my doubts so clear... thank you

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THIS VIDEO DESERVES MORE VIEWS AND COMMENTS

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[@tdpencil2811]

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I still don't understand

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[@-Hi-5]

Skill issue

[@Kenzo_254]

In 3:05 , why do you draw fluoride ion with 8 electrons and a negative charge? Why not draw it with 7 electrons or is there something I'm missing?

[@aniketsatpathy1532]

See @kenzo_254 You're totally right ! but it is the way of representation that the Fluoride had 7e- than the 1 extra e- came that's what the negative sign indicating and since extra electron came it formed lone pair with the 7th electron simple !!!!!

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[@lemasamer]

Still studying this until today

[@karl-johanmorne5736]

Hi! Great video. But why does the oxygen become positive when it has one single bond and one double bond?

[@diegovelazquez5643]

because the oxygen is using one of its pair of electrons to form a covalent coordinated bond, so technically, the oxygen is "losing" (just sharing its electrons) with the electrophile

[@karl-johanmorne5736]

Diego Velazquez not all heroes wear capes, thanks

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I really have a mock in 30 minutes.

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studying for the ACS orgo exam and could not remember this for the life of me

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Message to the person watching this : Your Exams are happening tomorrow .

[@toptv1049]

Someone help please! I need to know what topic I can find to help me understand this change of charges stuff like how carbon in the resonance structure of that ketone molecule has a positive charge and why a molecule like OH will be negatively charged.

[@bharti_chhimpa6]

The only problem with black background is I'm always distracted by the FACE I can see in it 😀😀😀 By the way ........ Really helpful thankssss ❤️❤️❤️❤️❤️

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[@xusux]

1:10 how in the hell is ch3 electrophile Isnit it nueclophile with a lone pair Bro i am confused

[@mariaaya9802]

It’s a carbocation (CH3+) and with a positive charge being an electron deficiency, it’s an electrophile

[@dianamorad6334]

Are halogens always nucleophilic?

[@r.k.hariharan3741]

Not necessarily they sometimes have positive charges...like in oxyhalo acids HOF(fluorine has +1 charge) but they are unstable....they grab an electron as soon as possible

[@tanushrih2178]

1:38 Basically a Lewis Base? Was that done on purpose? 👀

[@combatarts192]

No

[@hi-dx8jw]

Which one is more reactive electrophiles or nucleophile ? Thank you

[@teddow5455]

the nucleophile atom will attack the electrophile, so the nucleophile is more reactive

[@leenmcheik7862]

Did you know the answer?

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[@91099Babar]

1:38 What do u mean by Loose acid & base ?

[@Yash_m2102]

*Lewis Acid

[@minired7477]

It's just a definition of acid and base There are other definition for acids and base such as: Arrhenius acid: produces H+ in solution Arrhenius base: produces OH-(hydroxide) in solution There is also the bronstead-lowry definition of acid and base but I'll be going off the point so Acorrding to the Lewis definition of an acid: they are electron pair acceptor, this is the reason why they are called electrophiles because they are normally cation, meaning they have less electrons so they accept the electron pair And for Lewis base definition: they are electron pair donars, they donate their electrons to the Lewis acid, this is the reason why they are called neutrophiles, because they are normally anion meaning they are electron rich, so they can give up their electrons and donate it

[@aniketsatpathy1532]

Answer to this question is really simple since the Carbon atom as the deficiency of the electron density (Positive charge) as per the definition........ simple !

[@Samiiattt]

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[@triplemgaming5103]

2:42 Does the oxygen form a dative bond?

[@limmuquan4796]

Yes it does

[@triplemgaming5103]

@@limmuquan4796 thank you

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I'm studying this during exam.

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Helpful !

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Thank you

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Thank you (Thu 17 Dec 2020, 4:26)

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Me 6yrs later 😩

[@orjowan_k8967]

Omg thank you you are the best

[@rahulSharma-xo4ih]

Sir is Na+an electiophile pls clarify

[@Jerrydsk]

Yes it is because it’s a positive reagent

[@sushmarathi8570]

Excellent

[@qufeng49]

I'm studying this for a lab note I'm making.

[@sarahschlosser7430]

At 6:30, wouldn’t the keytone be a base not nucleophile or both?

[@sirius_2dm]

Yh it's a nucleophile when it's reacting with an acid, and an electrophile when reacting with a base

[@ShubhamYadav-wh6dc]

its ketone

[@aniketsatpathy1532]

see ! that's really simple as the video suggested depending on the condition the ketone can behave as both electrophile or nucleophile and since video also mentioned that the nucleophile is the lewis base and the electrophile is the lewis acid so, yes you may consider it as base or nucleophile !

[@meryemcemileerol]

Thank you, sir thankkk you sooo much

[@TwilightQuartz]

Thanks 💚 from 🌱

[@muhammadzakiahmad8069]

Sir but nucleophiles must be positive because they are RELEASING electron(negative charge).Please please please explain it to me.

[@Akosua411]

No, because since nucleophiles have electrons to give, they're originally negative due to the electrons' negative charge. When they do give those electrons away, they become positive in the products.

[@MaulikSrivastava]

Nucleophile= nucleus loving. Keep in mind that nuclei always contain protons (which are positively charged). And if nucleophiles are proton/nucleus loving(as their name suggests), it is implied that they *themselves* are negatively charged(because opposite charges attract) Hope this helps

[@muhammadzakiahmad8069]

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Just wondering what your job is now lol

[@ariannagholami]

Wait why is the O staying with a double bond when the hydrogen is added? Why doesn't it become a hydroxyl group?

[@issakawalit490]

Because the oxygen donated one lone pair of electrons to form a covalent bond The double bond has nothing to do with this

[@edwardjarvis3442]

if something is neutral why would it want to gain or give up electrons. This doesn't make sense at all.

[@wellstoress]

Yeah, about the boron becoming negative.. I don't get..

[@shree_152]

it is neutral but that doesn't mean it cannot gain another one just like us human we will eat till the food reach our oesphagus but we always keep a room for desert if they give you you'll eat and if they don't you're okay cause you're already full

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Thanks

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Got my AH Chemistry exam tomorrow :/

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Connor McGown how’d you do?

[@rdoo04]

hope you did good lmao

[@Qwerty_789]

What about paedophiles?

[@devilyacoob9382]

eric yam 😂😂😂😂

[@dylanguitar]

Examples include: Yttrium, Oxygen and Uranium

[@musbahahmad1611]

really thhhanks

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i liked it sir

[@ij852]

شكرا لكم

[@aundreataylor3588]

Wouldn't BH3 have a lone pair, so it would act as a nucleophile. Like NH3?

[@limmuquan4796]

Um no, boron only has 3 valence electrons which are all used in bonding with the hydrogen atoms so it has no lone pair

[@limmuquan4796]

BH3 is a electron deficient molecule which acts as a Lewis acid/electrophile

[@aniketsatpathy1532]

Answer to such question is quite simple see boron has only 3 valence electron and it bond with the 3 hydrogen atom and despite of being electron deficient molecule such molecule do exists so as i mentioned it is a electron deficient then , wouldn't it be considered as the nucleophile You think ?

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شكرا thankyou

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Who is studying this because he wants to complete it in coaching

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Exam is on

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You should make a more understandable video.

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