Looking for a Tutor Near You?

Post Learning Requirement »
x

Choose Country Code

x

Direction

x

Ask a Question

x

x
x
For better view click here
x
Hire a Tutor
DISCOVER

Chelate Effect

Loading...

Published in: Chemistry
6,635 Views

Presentation On Chelate Effect

Akhilesh K / Lucknow

4 years of teaching experience

Qualification: M.Sc (NIT Rourkela - 2019)

Teaches: All Subjects, English, Mathematics, Science, Chemistry, Physics, Algebra, IIT JEE Mains, AIPMT, NEET

Contact this Tutor
  1. Binds K + in MeOH with K a = 1.3 X 106 1 a-crow n-6 Mea linear analogue Binds in MeOH with = 200
  2. ?] ? 1 2-??-??•• ?) ? ? ? Lag .k.a ???? 1 2-cravqn-4 1 5-crawm-5 1 ?-?????-? 17 3.2 4.4 1 5-crow ?-5 3.4 1 8-crow ?-6 Cavity r-"ametek' (?) 1 2-cravm-4 1 5-c.ravm-5 1 ?-?????-? lonic diameters : Na+ = 1.9 ? ? = 2.7 ? ?? for 15-crown-5 + Na+ = 1740 Wt1 in ????, but only 6 Wt1 in waten
  3. Chelate Effect Ni2+ + L = Ni-L Complex Formation Constants (Kf): 8.12 13.54 Chelate = Claw ( Greek) trien 13.8 16.4 H2N en NH3 NH3 NH2 H2N NH NH trien H2N NH2 NH NH NH2 Thermodynamic Reasons for the Chelate Effect = Entropy H2N H2N H2N H2N 2 particles 3 particles
  4. Macrocyclic Effect Macrocyclic chelate complexes are up 1 07 times more stable than non-cyclic chelates with the same number of donors chelate macrocycle
  5. Cryptate Effect Additional connections between donor atoms in a macrocycle further enhance complex stability by making dissociation even more difficult increasing order of the guest organis ation macroeyelic etteet Macrobicyclic effect Podend Corend Cryptand ehelate effect chelete effect and macrocyclic effect chelete effect and macro bicyclic effect organisation binding sites in space ma crobi cyclic effect
  6. Calixarenes: • macrocycles that are made from phenol or P-tert-butylphenol. tgu Calix[4]arene Calix[6]arene Calix[8]arene
  7. H* ih iå
  8. base p-tert-butyIcaIix[4]arene Synthesis emerged from "bakelite" process; phenol + formaldehyde + base gives hard polyrner (linkages through offha and para positions)
  9. arCH2C02Et, Log Ka tar binding catjans jn MeOH Eta Eta Eta a 000 o OEt OEt
  10. high dilution, base high diluti on, base Similarly [2.2 .2]cryptand [2.21 ]cryptand
  11. 0 0 0 0 0 ? 2 2.2]cryptand 2.1]cryptand ? ag Ka in MeOH —l 1 Z CC' 7 [2.2.I]cryptand [2.2.2]cnjptand 1 ? ?

Need a Tutor or Coaching Class?

Post an enquiry and get instant responses from qualified and experienced tutors.

Post Requirement

Related PPTs

Upload PPTs

If you have your own PowerPoint Presentations which you think can benefit others, please upload on LearnPick. For each approved PPT you will get 100 Credit Points and 100 Activity Score which will increase your profile visibility.

Upload Now
Home > PowerPoint Slides > Chelate Effect