Lewis acids and bases-polymerization, Chemistry

Polymerization

The tendency of many molecules to aggregate and form dimmers (e.g. Al2Cl6 2), extended polymeric, or larger oligomers structures can be regarded as a donor-acceptor interaction. In the reaction.

 

1440_Untitled.png

a chlorine atom bound to one AlCl3 access nonbonding electrons to complex with the other aluminum atom; as in most other examples of this type the bridging atoms are symmetrically disposed with identical bonds to each aluminum. Polymerization of AXn molecules is more likely to happen when n is small, and when the atom A has vacant orbitals and is big enough to increase its coordination number. Many oxides and halides of stoichiometry AB3 and AB2 form structures that may be regarded as polymeric, although the distinction between an ionic one and this (polar covalent) description is not clear-cut.

 

2304_Untitled.png

 

Hydrogen bonding will also be regarded as a donor-acceptor interaction in which the acceptor LUMO is the (unoccupied) antibonding orbital of hydrogen bonded to an electronegative element.

 

Posted Date: 7/23/2012 12:36:11 AM | Location : United States







Related Discussions:- Lewis acids and bases-polymerization, Assignment Help, Ask Question on Lewis acids and bases-polymerization, Get Answer, Expert's Help, Lewis acids and bases-polymerization Discussions

Write discussion on Lewis acids and bases-polymerization
Your posts are moderated
Related Questions
which solution is formed when iodine solution ,copper sulphate and caustic soda are mixed?

What are the application of photochemistry in modern technology?

Q. Illustrate Law of Equilibrium and Equilibrium Constants? Ans. The general equation for a reversible reaction is given by aA + bB -> cC + dD The law of equilibrium

calculate the surface coverage obtained after exposure to a pressure of 10 torr of CO for 20s at 300K. sticking probability of CO is 0.9

0.47 moles of Sodium were reacted with 26g of Copper(II) Nitrate? If the actual yield of copper metal was 1.43g, what is the percentage yield of this reaction? 2. What is the equiv

why pcl3 is less polar than sicl4

how to calculate the equivalent weight of an ion

physical and chemical properties of matter

Quantitative determination of a number of ions like Cu, Ag, Zn, Fe, Ni, Co, Cd etc. has been done by using 1.2.3-benztiazole as precipitating agent under different experimental c

Bond strength in hydrocarbons As much shorter is the bond size, the greater is the compression among molecules atomic nuclei and therefore greater is the strength of that bond.