1ok everything clear...........thread closed............tel u wat...coolpal just gave d question and went she dint even see d answer hehe......and d thread has become so long widout d originators notice.......
35 Answers
1
1Pairing will not take place
coz
it is an octahedral complex and the t2g are at lower energy level than eg
so electron enters t2g orbital first and follow Hunds rule first all 3 t2g orbitals are filled then pairing starts
1hey terminator wat r u saying???i cant understand?? wat 6??? NH3 is neutral dude.........
1ya Cr kaa coordination num is 6...........its oxidation num is 3......wats wrong wid tht??
1hehe ya.........i just love lizzie mcguire................(hillary duff)
1guys..........coolpal will think we r admiring her...........hehehe lets stop dis and lets answer prateeks question........he is dying for a reply.......
1akand plz try to reflect on what i"ve added,if u don't like then bash !!! but comment
1nice one akand..
but how CN a strong ligand ??
strong hand , errrr... ?? !@#@#!$
1hmm...
coolpal putting her hands on her frend's pocket :P [coolpal is gal only naa ? [12] ]
1@ akand,coolpal
as far as prob. solving for IITJEE is concerned remember
1) C ,N containg ligands and multidentate are strong ligands(however i don't take the risk of explaining why PtCl4 is a tetrahedral not at this point atleast)
2)halogens and rest are usually weak ligands
As far as the real reason for CN- being a strong ligand is not explained in MOT but through higher theories like cft,lft etc and they r not in jee course(however the fiitjee people ask some ques based on it in aits)
if u say that u look at the sprectrochemical series for the answer,u"ll get dissapointed as the series is based upon observations upon the absorbtion of light by complexes and there is no theory behind it.........sorry dude[2][2][3]
1isnt NH3 strong??? but..... pairing doesnt take place and its d2sp3.....................BUT y??
1look..........ill explain to u in a non chem style......................
lets think u r d main metal atom........and ligands are like ur friends..... u hav many pockets(unfilled orbitals)........and ligands have hands and fingers(unpaired electrons)......so ur friends keep their hands in ur pockets...................so ur pocket is also filled and their hands are also warm.........both profit from this............in d same way ligands also donate their electrons to d unfilled orbitals and gain stability..........
1as far as [Cr(NH3)4]+3 is concerned i don't get it either it should be Cr(NH3)6]+3 or the charge should be different..
