Thank you sir... Read my books and I was confused this video just made my day. God bless you... I will need videos on IR and NMR

Haiiiii sir I'm following your channel from 4 years Sir you are tooo great..I don't know how to explain my happiness on you sir...Today i got good command on Spectroscopy that's only because of your lecture.. Your teaching way is awesome 😃😃😃😃 feeling happy I became a student of you sir

This is the most helpful video I have EVER watched for organic chemistry. You really make it straight forward, and explain things clearly. Thank you.

“Lets learn how to do it, and do it quickly” What a pro.

this is better than class...im gonna share this to all my classmates...

No one can explain better than this....... One of the best video on MS Thankyou knowbee

@Knowbee

6 жыл бұрын

Thank you for your very kind compliment!

masa study degree dulu..xfaham lansung konsep fragmentation in mass speck..but thanks to you my understanding about fragmentation was crystal clear

I like it well explained keep on such quality forever. ..plz..

Hat's off sir.... superb explanation Nobody can explain like this on whole KZread.. Thank you very much...

i dont care how old this video is, but amazing!!! Ur helping the future man, keep up the goood work;)

So just to be clear, in the last part of the ethyl example, it is possible to cleave off either methyl group (on the right side or the left side) to produce the 101 g/mol peak. It just wouldnt be a very big peak, even though two possibilities were contributing to it.

Exactly what I needed! thanks so much! ^^

Top site great explaination, thank you.

I dont know a more proper way to thank you!!!!! You have helped me understand fragmentation in a very clear, simplistic manner!!!! Thank you so much!

Very good video for understanding of mass fragmentation

Thank you so much You made this look very easy

Excellent explanation. Very helpful video.

Good explanation.....it is helpful to competative exams

Hi ! I think at 16:20 there is a mistake : CH3-CHBr-CH3 because it cant be a CH2 at the end I think. And also at 16:35 : I have 122 g/mole and 124 g/mole It's only for helping you :) and thanks for you job it's realy great ! :D

@favourifezue1201

4 ай бұрын

Thank you for this I got confused so i had to check the comment section

Excellent video! Excellent delivery and easy to understand but McLafferty rearrangement?

Thank you for such great and understandable explanation Dr.

@Knowbee

7 жыл бұрын

You're welcome! Thank you!

@user-yw4mo9ph2w

2 жыл бұрын

Ih

At 14:08, isn't that ethyl daughter molecule technically an anion? Can a detector be introduced to detect this? Shouldn't it be curved in the opposite direction of the cations of interest, or is it truly neutral and flows straight to the exhaust in the MS?

From the bottom of my heart, thank you🥹💜💜🌸

I agree with you Andrew 100%

Super clear , thank you!

Fantastic explanation

Since i ve seen this video i decide to subscribe in ur channel

thank u so much sir... your official website is close.. plz help where can I get the full course with notes

Thank you so much, Sir. This helps a lot .

Best explanation on could get on this topic 👍👍👍👍👍👍👍👍👍👍

If the fragmentation products are not initially identified, then how do we will decide about them, when we are seeking the ecotoxicity of parent vs daughter compounnds

What if there's no halogen in the structure? Which of the electron that gonna be beam?

Nice explanation... Just saved my time.

you are fabulous man !!

Very helpful video.thank you so much

This video saved me ❤

Very helpful video! as tomorrow is my test. So much clarity in the visual representation. 👍I have a couple of doubts 1. Why the electron beam remove electron from the hetroatom atom such as oxygen, halogen and not carbon? 2. Why methyl radical peak was generated when alpha cleavage was done from right hand side?? Looking forward to the answers.

@himakshisaikia2323

4 жыл бұрын

Akeeda Sharma well I think that the electrons on heteroatoms such as oxygen, nitrogen are loosely held as these have lone pairs of electrons (non bonding electrons)...similarly for halogens.

Most helpful video..

please can you help me at fragmentation of isopropyl isobutyl ether?

Hey ... please can you tell me the reference from where you bring the content?

excellent! really helpfull!

AMAZING VIDEO!

Thank you so much..sir..I got so much from you

Thank you so much for this video, helped me a lot!

Vielen Dank,♥️this vid save ma life XD

Very good explanation

Brilliant!

how would terephthalic acid fragment???

Very nice deliver of lecture

Perfect explanation! You helped me a lot! iPerfecta explicación! iMe ayudaste mucho!

@Knowbee

7 жыл бұрын

Great! Good luck in all your studying!

@daliaalfaris763

7 жыл бұрын

Knowbee hkkj

You're a godsent

really appreciate the tidbits of reassurance and encouragement midway because it definitely was starting to feel overwhelming but i am glad to say i am leaving with better understanding of the topic so thank you !

Is the electron beam always going to knock out an electron from the lone pair? Because on a question that said "draw all the possible cationic fragments of the following molecule" my professor drew also the possibility of knocking out on electron from a bond.. I was really confused because I always thought it was the atom with lone pairs that gives up one electron.

@Knowbee

6 жыл бұрын

Good question. The beam can also knock out bonding electrons. I have videos about this. Go to my channel and watch all the fragmentation vids and you will see.

@pamplemousse5546

6 жыл бұрын

Thank you!!

thx man ur the best

I appreciate for your helpful

Thank God i found you. 😘😘

@Knowbee

6 жыл бұрын

Thank you!

Or the lazy answer to the question: No m+2 so no halogen. So it must be the third one. Great video easily explaning ms interpretation!

Thank you so much

nice explanation

You just saved my SEM exam boy !!!!! :D Thank you very much :P :) ... tomorrow's my chem exam :D

@Knowbee

7 жыл бұрын

Wow! Glad I could help on the exam! Good luck on all the rest! And thanks for the compliment!

@v.smourya8005

7 жыл бұрын

I would have definitely failed but i scored far more than i expected ... 72/97 :O ... Once again Thank you @knowbee :) :)

Superb

omg thank you thank you thank you!!!!

very well explained sir..Thank u very much

@Knowbee

7 жыл бұрын

You're welcome! Thank you!

THANK YOU SO MUCH

সেরা।

Can u please explain x Ray crystallography

your work is great, but you need to change the colors to something else not gray and green thanks

God bless you

thank you

plz sir concentrate on mclafferty rearr. of ESTERS & ACIDS

Thanks man!

brilliant

Thank you

Ty

any best book you can point me thanks

underrated

perfect

Maestro

00.36 am and im about to cry of happiness

@canipoo

4 жыл бұрын

that's rookie numbers

thank you thank you ;-; i didn't understand anything from the textbook

Thanku sir

super video

Where is the butyl in s-butyl isopropyl ether

Good afternoon! How to contact you?

@Knowbee

6 жыл бұрын

I just added how to contact me in the description.

👍👍

nice

at 15.14..... in alpha cleavage..... there should be 4 electron on chlorine instead of 5. after fragmentation

@Knowbee

7 жыл бұрын

You are correct, sir! Sorry for the confusion. And thank you for the clarification.

Sorry for nitpicking- species is singular and plural - that’s why we don’t talk about the human specie, it’s the human species, even though it’s only one.

الشرح كتير ممتاز بس ازا في مجال تعمل شرح للspectrum كلو مثلا كيف بصير فقدان للماء بالketone or ester وكيف منفقد الCO في المركبات ؟؟

12:00 für die Übungen Grüße gehen raus an alle Freiburger!

I thought I’ll never understand mass spectrometry 😭 but thank God I found this video Thankyousomuch🌹

Excellent video, very helpful. Also, you said "cleavage," tee hee hee.

Instead of ch2 we should write ch3 at the starting stage

Not clear on peak 124

God bless the teacher 🙏🏾

♥️🙏🇳🇵

thanks for the help! but maybe lets not be sexist with the he pronouns for the atoms

Superb

God bless you