ESR/EPR Spectroscopy - Vital Topic

Detailed discussion on ESR/EPR Spectroscopy.

[@perumalc5965]

Good & simple explanation about ESR/EPR Basic.Great work sir! Thanks lot!

[@jyotisaini9534]

A great content video. Drago rule explained nicely.

[@sdeb3333]

You are a life saver! 💜💛💚💓

[@VaishnaviDevi316]

such an easy concept to score marks...I have read this textbooks too but it had been given in complicated way..u have delivered the important concepts in very easy method which must be appreciable. sometimes listening is better than reading :) Thank U

[@VivekYadav-nf6yu]

Thank you so much for the video really appreciate it

[@pratibhabakre5389]

Thank you Sir. one question here is, whether [Cu(H2O)4(NH3)2], is high spin or low spin complex? since both SF and WF ligands are present.

[@anjelinew7962]

Helped me alot sir. Keep doing videos like this.

[@nabaankurhazra953]

Sir I have 1 question... How can we know the value of I for transition elements??

[@ksatish6258]

great sir amazing vdo & amazing explanation...thnx sir

[@user-qd7bo2ot6x]

You try to give your 100% effort ...nice good lecture.

[@chemshort5225]

Drago's rule was again new fr me.ur every lecture is so valuable actually.i learnt so much f esr in my pg and thought that i am good enough in it,but after watching drago's rule,i found myself wrong.thanku so much sir.

[@pratibhabakre5389]

Yes even for me. I never heard about Drago's rule. Thank You Sir.

[@priyankagupta6575]

Sir thanks alot for uploading such a nice video.

[@shantanu.phadke]

can't thank you enough!

[@jbchemistry4984]

It's very useful for me specially with more than one unpaired electron

[@subhajitbarman8864]

When NH3 radical consider then H' s spin is interact with electronic spin but in case of {Cu(NH3)4}2+ H's spin can't interact with electronic spin why??

[@abhishekraj2194]

sir thanku so much for the hard work u r doing God bless u sir

[@priyankagupta6575]

ESR spectrum of a solution of [Cu(acac)2] CONTAIN HOW MANY SIGNALS??

[@sayonikachakraborty2060]

Very Very helpful !!

[@KamleshYadav-lk6ug]

Its too helpful. Thanks bro

[@umendrakhokhar7114]

simply nice thank you dear

[@priyav2609]

thank you so much sir for new information... thanks a lot

[@jagadishnath6217]

its really helpful 4 us. thanks a lot sir

[@somratansau6519]

Wow! Really a nice explanation.

[@nehanishad7318]

Thanks Sir it's make easier to me ESR . I have not word for thanks you

[@saldias7475]

All your videos r helping me a lot .. I had almost lost my hope about clearing net exam... but all thanks to you sir... it would be really helpful and kind if you do video on quantum chemistry .

[@gtmkumar34]

Thankyou so much sir ....great job..

[@udayshee1993]

sir,napthalene radical shows 2^7 lines in esr spectra and napthalene anion shows 25 lines..

[@mohdsufiyanchauhan6068]

Sir Thank you so much, your videos are so encouraging & motivating!!!! plz keep on posting videos

[@sassysoma]

Which books should I prefer for epr spectroscopy?

[@priyankabansal9980]

thanku so much sir........ur lectures r really helpful...

[@ucdiaries8064]

yes i undrstood thank you

[@user-bw9bn5mb2z]

Thanks it's very good explained

[@besmart85]

Thanks a lot!

[@sivan9219]

Very nice explanation of dragos rule...

[@himanshudadhich8383]

why is carbon not considered to calculate the splitting

[@sruthiarun1232]

Thank uuu Sir thanku so much for this

[@meghakeshri4488]

Which Books for esr and mossbaeur for inorganic spectroscopy can u plz suggest

[@sohamsarkar5255]

Could you please provide the next video link of EPR where you talked about parallel and perpendicular

[@sooryas9301]

Thank you so much Sir..

[@srishtibatra5814]

Sir, in the last question which you have discussed , why we haven't taken G.I into picture? like the complex would form cis and trans isomers and that would lead to 1020 lines. Please try to clearify my doubt.

[@yoga9455]

super sr.....

[@chemshort5225]

sir, i have a doubt. in CH3 radical, we say that 4 epr lines are observed bcoz of electron interaction with hydrogen, i.e., hyperfine splitting, if BH3 radical interacts with hydrogen, then is it hyperfine or superhyperfine, bcoz in this case, even B is active nuclei which was not the case with C?

[@chemshort5225]

first generation interaction is hyperfine right, so i am confused?

[@examheist6129]

is this part imp for jam too?

[@udayasreesurekha9178]

Why the spin of cu is take as 3/2 for evry oxidation state

[@Supdada]

Sir in ammonia we don't have unpaired electrons but we get splitting pattern... How ?

[@bharathimh5351]

sir june 2017 question regarding ESR, (R3 Ge)2 on photolysis gives a radical which shows ESR spectrum . The ESR signals carrying the signature of 73 Ge (I=9/2) are in terms of a)nine lines b)ten lines c)two lines d)one line .But im getting it as 19 lines sir what's my mistake Im not getting

[@bharathimh5351]

but but two germanium atoms are their no sir

[@bharathimh5351]

oh ok thank you sir

[@ramananddas9795]

Which book to follow for EPR?

[@rinivishwakarma7497]

For ethyl radical ..is it 12 lines....??

[@PRIYASINGH-wu4ur]

Very nicely explained

[@sajjadhussain8141]

Sir iz Drago's Rule iz applicable for only Coordination compounds...In NH3 redical molecule H3 participates...

[@bijaykundu9302]

thanks a lot sir to make this topic easy

[@richaraghav08]

Sir this should be done for jam ?

[@nargisjafriofficial]

Thank you so much....take more examples of this type if possible

[@sapnabarad2739]

sir how the spin of cu is 3/2 ? pls explain ..

[@jayantadey773]

Ti(3) will also under go JT(Zin) .. as the effect is not so pronounced therefore not taking this under consdrsn?

[@priyankagupta6575]

Which are esr active? B2,O2,Ñ2,F2,C2

[@ajaysharma-zi2ef]

Sir CH2 free radical and D both of give 3 ESR line in cpds but why CH2 free radical intensity ratio is 1:2:1 and D intensity ratio is 1:1:1 I am little confused sir

[@sajjadhussain8141]

different intensities due to pascaline and non pascaline trangle madam

[@ramyasri1341]

Very useful video

[@amanjotkaur5567]

Please give me response sir Why we count equatorial axial in case of [Cu(H2O) 6]2+ complex but not count in case of [Ti(H2O) 6]3+ complex?

[@kinshoukchatterjee9430]

Lines for (CF3)2N radical?

[@incredibleminds3322]

Sir what is the Kramer's doublets in cr(3) ion ... Plzzz explain

[@SahirRayaan]

how we have got cr =5/2 ? Cu=Ti=3/2 ?

[@abhisekbanerjee7057]

Thank you so much ..if possible kindly explan the concept of g perpendicular and g parallel in esr spectra which troubles a lot actually .

[@abhisekbanerjee7057]

Thanks a lot ..

[@han-rw1bg]

Sir u told that Pascal ∆ is valid for I=1/2 and non pascalian ∆ for I=1. What about other spins like 3/2, 5/2? Should we follow Pascal ∆ for 3/2, 5/2......??

[@Marthand777]

No you can't follow PASCAL triangle for other than half

[@rupalibharati3644]

For 3/2, 5/2 nd other more, use only non pascal. Pascal is for only 1/2

[@sobiakhan709]

Beautifully explained...but i have a little bit confusion ..is drago rule only applicable to coordintn compds..but if it is applicable to all..then in NH3 radical why v get 12 lines instead of 3 ....plz clear it to me if u get time ....

[@zpluschemistry9380]

sir plz tell me ,how many esr lines are possible for [Cu(NH3)6]2+ complexes ,here also the effect of john teller distortion will happen?

[@han-rw1bg]

Jahn teller distortion is not considered in [Cu(NH3)4]2+ but in [Cu(H2O)]2+ it is considered, so taken two environments for Cu in the later one. why? Can u please tell me

[@jaspreet819]

how many esr lines are there in the compound[ Cr(H2O)6]3+?

[@jaspreet819]

Thank you Sir!

[@gurjotkaur4049]

sir if spin is other than 1 then we use pascal traingle or non pascal ????

[@gurjotkaur4049]

thankeww sir

[@sonambajaj7386]

Sir , I have a doubt The splittings due to all t2g configuration leading to JTD will be ignored and all JTD due to eg configurations be considered ?

[@sonambajaj7386]

Gate chemistry So sir, in a complex where there is jtd due to t2g configuration. Will its esr splitting pattern be affected ?

[@ghanshyammali8811]

Great

[@Marthand777]

In organic molecule hydrogen is attached to carbon wh8ch is inactive so Dragos rule ?

[@jhachemistry3443]

awesome sir Ji numerical ab ban raha Hi. thanks

[@VijayKumar-ew3sx]

UO2+ how many number of signals observed ?

[@chemistryknowledge1696]

thanks sir

[@sofiagupta1506]

Thanks 🤗

[@chemicalsciences5780]

in the anthracene molecule ,how Ha and Ha are different??because they are belonging to the same environment..so how?

[@abhishekraj2194]

sir only this much is sufficient or we need to study it from book

[@kironhazarika8547]

sir how can u determine the spin of Cu and Ti as 3/2, plz explain....

[@vinod_10]

same question sir

[@kironhazarika8547]

ok... thanks sir..

[@PRIYASINGH-wu4ur]

Yes sir please make video on calculation of spin.

[@grabopportunities1996]

if in [Cu(NH3)4] ..H is not participating in splitting ,then why in NH3 it is participating and showing 12lines

[@fun_is_funnn]

preeti awasthi same question here

[@rupalibharati3644]

Bcoz H in NH3 is alpha and in complex it is beta. N beta H doesn't show lines

[@rupalibharati3644]

According to dragos expt

[@chirutha143varun]

How do you calculate I value.... For an element You said directly for h half D 1 N 1 Cu 3/2

[@neilrichardinniss]

You can't. They're experimentally determined.

[@anilganta4778]

Hi sir , hpy evng for you. .. I have small doubt. . how to you told Cr I = 5/2, Ti & Cu = 3/2. . please explaine for me. .

[@sarangabaishya963]

Sir is Dragos Rule applicable on;y for complexes? Because in NH3 radical splitting of H has been considered in your video.

[@vijaywankhade1904]

How many epr line shows phenyl radical..

[@educationtheonlyweapon5897]

Sir everything i can understand But how can i got the I value for different elements

[@syedshauzababbas7062]

It is given in exams

[@Supdada]

Sir in which book i can come across this drago's rule...

[@NEELAMKUMARI-ij3xg]

Sir... you are the only ray of hope for me....in this backward area.. thanks a lot....

[@pragatiswain6914]

What if more than one unpaired electrons are present? EPR inactive?

[@pragatiswain6914]

Yeah got the answer at the end! Love you and respect you as a personality!

[@abhishekraj2194]

thankuuuuu soooo much

[@meerrafee4313]

Sir i watch ur every vedio and after that i m able to solve any question on dat topic which i find in previous papers so itz a humble request to add a vedio on daily bases.

[@sudheer2643]

Thanks a lot sir

[@varshakhandelwal9379]

Thanku soo much.. Plz explain mossbauer too

[@rafiakhatoon1690]

how to calculate spin of active nuclei.....plz help

[@harmanpreetsingh3844]

Sir chromiun di spin 3/2 ni hoti??

[@arminderkaur6574]

Thnku sir

[@arvindjain1317]

I would like to practise more problems of esr spectrum of molecules...which are the best reference books for esr spectroscopy..what about pyrazine?

[@arvindjain1317]

Thank you sir..do you have e book of Drago..in lib gen it is not available..

[@chemistryknowledge1696]

why dont we consider Jahn teller distortion in Ti(H2O)6 complex

[@amanjotkaur5567]

Sir Please tell me I values for Co, Mn and cr ?

[@nidhakhan7608]

sir i want to ask u why u dont appy tge dragos rule for NH3 radical and i want to ask u in organic molecule u say find the different kinds of hydrogen atom ..the procedure is same as we do in NMR for calculating the diff types of hydrogen and one more ques sir the one having nuclear spin other than 1 canwe apply the non pasclain formula and those of spin other than one and half can we apply the rule of pasclain triangle ...

[@vikramthimaradka690]

did u get answer?

[@nidhakhan7608]

No sir

[@aasthaaggarwal348]

Thankyou sir. Time :27:19 Sir, you said there are 4 hydrogen so we get 80 lines but sir according to( n+1)formula we get 4+1=5, hence 20 multiply by 5=100,so sir should we not get 100 lines instead of 80 . Please correct me if I am wrong.

[@aasthaaggarwal348]

Gate chemistry yes sir, I understood this that experimentally it comes out to be 44 but if we theoretically calculate, you said it comes out to be 80,sir I am asking it should not be 100 lines theoretically?

[@dhananjaydas5934]

For non. Pas. I=1, n=2 So no. of line will be= 2*2*1+1=5(line) but you shows intensity= 1:2:2:1=4 lines. How it is possible. Pls tell