Ligand Contribution and 18e rule

Small Correction. - M-NR3 contributes 2 and not one.Tips and tricks on applications of 18e rules along with discussion on ligand contribution.

[@ankitasingh728]

Sir u r truly amazing thanks for making me understand these concepts so easily

[@dinajeeva2725]

Your videos are very helpful! Thank youuu

[@achyuthkumarg]

Recently i qualified Andhra Pradesh State Eligibilty Test2017. Most ur videos are useful . Present i concentrate on Csir net and GATE 2018

[@conceptualchemistry8462]

Sir plz tell me how we can find that howmany electron donate by ligand .like co is a two electeon donar while -NR2 is a one electron donating ligand .

[@nandishapsnandisha7077]

Great job sir ..fr society.....it help us more...god bless u sir..

[@rafiakhatoon1690]

how to calculate for complex ions by using neutral method 18 electron rule..Does charges on ions play any role in calculation

[@vishwajeet1211]

How many electrons should be count for ch2 group in bridging ? please explain

[@suramyashrivastava9761]

Wonderful video , explained very well.

[@sachinchandran7836]

Sir amine M- NR3 contribution by nuetral method is 1 or 2?

[@shubhamgodiyal4706]

what is the value of x in [Cu(CO)x]^+ if it follows 18 e- rule

[@swathishetty9410]

If heptacity is 4 where linked with c6h6.. what we have to take?

[@keyapal9334]

Benzene donates how many electrons in sigma and pi bonding modes?

[@dixjain9635]

In this cl contributed one electron but in isolobal analogy cl contribute 2 elctrone why..??

[@sachinchandran7836]

Also what about bridging alkyl.is it 1 or 2 sir?

[@anuradharathinavel9938]

Fe (eta5-C5H4 CO Me)2 does this obey 18 electron rule can you explain Sir

[@PrabhjotKaur-di4gv]

PR3 and NR3 Have different ligand contribution ?

[@kirubabowneeth3928]

U r really dedicated...sir.

[@saniyakariya2653]

I think by watching the video.... we can clear any exam..... soo much useful is this.....tysm sir

[@saniyakariya2653]

Thank u sir

[@saniamahangave3882]

What is the contribution of -NH3 , - H20 and -CN ligand ?

[@abhishekraj2194]

sir can u plzz tell which topics in spectroscopy are most important

[@lifeajourney33]

Hlo sir can u please tell me how to determine the unknown quantity in 18- electron rule ?

[@VINAYSTUDYCAN]

N alkene n means sir

[@amruthak9883]

(I2(OH)2O8)4- how to find out the geometry? Can u please explain

[@sakeenasahni4859]

AsPh2,SiMe3,(NCMe)2 Plz reply how many electron contribution by these nd how to calculate??

[@dr.sonalimahule4101]

Sir, Please please clear d doubt: for complexes like a) [Re2Cl8] 2- and b) [Co2Fe2(CO)11 (mu-PPh2)2] neural method doesn`t give right answers, for a) oxidation state method works, for b) none of them...why? how to go for such type of complexes

[@shankarbhatkar4593]

What is oxidation state of Iridium in pincer Ir H2 catalyst please help

[@deepikakhatri3117]

Hello sir,Is this complex [W(CO)3(SiMe3)(Cl)(NCMe)2] obey 18e rule? Plz explain..

[@ranitram1728]

Yes, it obeys 18 e rule. EAN = (6+6+1+1+4) = 18

[@enakshisharma5442]

thnx sir for this bt what is the contribution by 1,2 phenthraline

[@keepawaythat]

H2O water donates how many electrons??

[@sanjuktamishra7930]

Sir why PR3 contribute 2 electrons and NR3 contribute 1 electrons ?

[@vijayprabhakaran8380]

der is a question based on 18 electron rule. Ques is which of the following can act as an oxidizing agent?? options are 1. 17 e complex 2. 18 e complex 3.19e complex 4. 19e complex. pls give a xplanation sir? An oxidizing agent suppose to possess 18 e or 17?

[@krishnenduchandra8112]

Thanks a lot sir....make more videos on various important topics like it

[@sadiyatanga9482]

What will be the contribution of CRR'

[@shyamsharantripathi4187]

Sir how many total electron count in [Re2cl8]2- and how will we get metal metal bond in this compound?

[@ranitram1728]

Quadruple bond!

[@deepajangid6586]

Co2(CO)8 whr Co-Co is single bond. Is this obey 18electron rule or not?

[@payelmaity8770]

You can write it as (Co(CO)4)2 then u can find it

[@Learningtree1211]

SIR Can you please tell me where can I Find solved TIFR previous years papers? Since I have no idea about this exam. and I have seen last few years papers. I am not able to solve them properly. Just thought to appear for experience. BUT my main aim is IIT-JAM only Sir.

[@sachisharma7328]

Sir, pericyclic reactions ki viedo kb upload krge..sir,ya batiya ki sirf all units and spectroscopy enn sbka numerical based question krne ka liya konse book le..

[@narendrakumarch7423]

(MoCl2Cp)2 can i know the structure if it obeys 18e rule

[@ranitram1728]

If it obeys 18 e rule, Mo-Mo should have quintuple bond (5 bonds)!

[@sapnabarad2739]

Hello sir ...electron contribution for acac ( actyl acetonate ) ??

[@sapnabarad2739]

by Neutral method .

[@jyotibhatt8117]

Sir oh or td me splitting hota h to kaise pta chalega ki kb T2g,A1g, A2g hoga plz sir

[@kirtiagrawal4429]

sir what is the electron contribution for u4Pph, u2NCS,uS2 ? it was asked in previous net exam

[@kirtiagrawal4429]

okk..

[@seemaneyaz6297]

Sir How calculate bridging ligand .

[@sonipatyal2844]

thanks its helpful...

[@Learningtree1211]

Thankyou so much sir. It is really helping me a lot. Sir, can you please tell me how should I prepare for TIFR? Means this jam prepartion will do or have to study even more? The exam is on 10th december Sir

[@archanapandey7932]

Sr ek confusion hora h ki ...agr koi OMC hai jiska co ordination no 4 hai to vo tetrahedral hoga ya square planner.....plz make a video on this plzzz sr

[@archanapandey7932]

Plz sr rpy

[@chetnahasija9975]

Thanks for putting up this video.I've got my doubt cleared.

[@thechemistlife]

u r chemistry guru 👏

[@AdityaKumar-wm2sr]

Sir ,for a complex how can we predict whether M-NO is linear or bent?

[@kirtiagrawal4429]

M-NO+ so geometry is linear and M-NO- so geometry is bent sp2

[@krishnenduchandra8112]

When pi acceptor ligand is attached to metal centre then binding mode of nitrosyl will be linear (NO)+; in case of sigma or pi donat ligand nitrosyl will be bent

[@jagadeeshmanda2497]

Sir for amine contributes 2 es

[@sudheer2643]

Thanks a lot sir

[@ajitrathva5607]

Structure of P4 is closo (exceptional case.)

[@sapnabarad2739]

Thank you sir ..is pyridine contribute 2 electron ?

[@sapnabarad2739]

okay sir

[@ranitram1728]

@@sapnabarad2739 yeah, py contributes 2 electrons, as it's l.p. don't participate in aromiticity (think py as CO or PPh3, 2 e contribution)

[@arunimabose5327]

plz upload a vid on nomenclature of organometallic compounds n hepaticity. plz as soon as possible I'm starting with inorganic finals from 20th april. this vid was helpful

[@nanditabaruah2772]

Can you please answer about which complexes sir is talking to apply the short trick diagonal complexes or something I am getting it

[@nidhakhan7608]

plzz sir can u mega video on the NMR topics including coupling geminal and vicinal n double bond equivalent for determining structures

[@keepawaythat]

Won't Cl also result in change of oxidation state to Fe+ in sandwich compound you've taken as example and that would result in change in electron count. Please explain

[@THECHEMlogy]

keepawaythat yes it can cause Oxidation but here we using neutral method so that why we r taking only one electron from X if we use Oxidation method then we have to reduce one electron of metal and adding 2 electron from X

[@keepawaythat]

malik khan so the electron count will be 18e for that complex?

[@THECHEMlogy]

Obviously u r reducing one electron from metal and adding one extra from ligand

[@keepawaythat]

malik khan I thought so too...

[@jhachemistry3443]

thanks sir

[@priyankabansal9980]

how to apply 18 electron rule in ------ W(CO)3(SiMe3)(Cl)(NCMe)2

[@chemspark9813]

thnk u sir n pls give a lecture on some topics of quantum related to previous year questions pls it would. help a lot Sir pls

[@beautify_intex]

thanku sir

[@simran1999]

Sir what will be contribution of SiMe3 and (NCMe)2??

[@simran1999]

Okk sir

[@abhishekraj2194]

sir plz make video on how by using character table we can determine polarizibility and allowed transition

[@aravinddhandu778]

What is (Pph3) triphenyl posphine contribution

[@saniamahangave3882]

2 electrons

[@sahilkumar-gr8fw]

Thanx sir ji

[@swatisharma-nt7ws]

Sir how to count electron donated by ligands as there r so many ligands..

[@swatisharma-nt7ws]

Gate chemistry .k thnks

[@rajashreekamble5752]

Nice video

[@jyotibhatt8117]

OK sir.

[@ss16physics]

Excellent explaination!!!

[@ritabritagoswami5281]

Sir if only nitrogen is given as ligand what will be its contribution?

[@ankithabm4154]

3

[@ritag8888]

please one video on RS coupling and predicting the number of spectra

[@savitakasansaar]

sir plz make video of how to calculate unknown quantity using 18 electron rule

[@jyotibhatt8117]

silica gel contains cocl4 whole power 2 minus as an indicator when activated, silica gel becomes dark blue while upon absorption of moisture, it's colour changes to pale pink. This is due to

[@jyotibhatt8117]

Thank u sir.

[@jamesfox6201]

you have written NR3 is one electron donor which is wrong amide(NR2) is 1 electron donor but amine (NR3) is 2 electron donor........

[@rajatkushwaha279]

please allow less adds.. they are very irritating in between the video..thanks for explaining..

[@abhishekraj2194]

sir plz kindly I request you to make videos on pericyclic and photochemistry as soon as possible

[@manishkumarsingh2432]

Sir plz make the video of bioinorganic chemistry

[@ksatish6258]

excellent sir...very valuable thank u so much sir

[@deekshasaini9607]

sir plz make video on quantum chemistry.

[@chemistrylover2327]

Pls make video on statical thermodynamic

[@MOHIT-vr3zn]

Bhai NR2 exist karta hai kya

[@MOHIT-vr3zn]

Or book mai mention hai ki Cl free radical 1 e and Cl-2 e donate karta hai

[@deepanitadutta1760]

Sir please make a video on molecular spectroscopy.

[@mr.strange1494]

Check NR3 and NR2 electron contribution......I think NR3 2e and NR2 (1e on terminal and 3e on bridging position) Please check..

[@shonasuthar8112]

u r ryt but sir ne sirf NR3 vala glt likha h

[@sapna1946]

Sir please make more videos on questions of solid state and chemical kinetics

[@sapna1946]

thank u sir your videos are best and very helpful for us

[@vinod_10]

Hi can anybody make me understand how cof63- configuration will come t2g4 e*g2 page no 449and 450 huheey

[@sapnabarad2739]

sir but Co in +3 oxidation state act as lowspin complex na ? either complex has strong or weak field ligand sir pls correct if i m wrong ...

[@vinod_10]

sir each florine contributing here two electron why that is confusing otherwise halogens contribue only one electron

[@vinod_10]

that is written in huheey

[@sapnabarad2739]

Vinod Dhiman i have read in Ajai kumar book that Co with f- and H20 forms low spin complex ... now i m also confused ..waiting for sir's reply

[@sapnabarad2739]

okay got it ..Thank you so much sir

[@sachinkhatri3335]

sir please teach us the molecular spectroscopy.

[@patibratabhattacharyastudy5748]

sir pls do 2017 june code b part c 63 mass fragment question

[@mursalimkhan8753]

i think bridging CO electron contribution is 1

[@AugJatin123]

Co(NO)(CO)3 oxidation state of Co

[@AugJatin123]

Yes sir , but the question has appeared in csir net as it is, what to do then

[@ezee2n229]

Damn, didn't have enough time to note down the ligand contributions before he rubbed them off!

[@rajatrodney6327]

You can always pause the video or, take a screenshot! Easy.

[@sasbttrr]

13.01 🤣🤣

[@garimamalik3846]

e contribution by (ph2PCH2Pph2)

[@AshwaniMauryaAM]

4 electrons as each PR3 donates 2 electrons

[@_MANI_5]

Power gone

[@sakeenasahni4859]

AsPh2,SiMe3,(NCMe)2 Plz reply how many electron contribution by these nd how to calculate??

[@ranitram1728]

Treat AsPh2 and SiMe3 as NH2 and CH3, so the electron contribution are 1 in both seperately. But (NCMe) satisfy all bonding conditions, I don't understand, why and how it would be (NCMe)2. For NCMe, the e contribution may be 2, donation of 2 non-bonding electrons of N.

[@sakeenasahni4859]

AsPh2,SiMe3,(NCMe)2 Plz reply how many electron contribution by these nd how to calculate??

[@phaneendrarushi5262]

I think 5+6*2= 17 for As Ph 2