Structure of K3[CrO8] have 4:peroxy linkages.

Bridge Bond in B2H6 , Al(CH3) and BenCln. ....?

Acidic strenght order of 2,6-Dihydroxybenzoic acid , Salicylic acid and benzoic acid.

Intermolecular Hydrogen bonds in o-nitrophenol Salicyaldehyde O-flourophenol and 2-6 Dihydroxybenzoate.

Bonding Details of Al2(CH3)6 :

Aluminum hexamethyl (Al2(CH3)6) forms a dimeric structure featuring two ( 3-center 2-electron) or  (3c-2e) banana bonds and twenty-two ( 2-center 2-electron) (2c-2e) bonds.

Structure Overview

• • Dimer Formation: Two units of Al(CH3)3  link together through two bridging methyl groups.
  • Bridging vs Terminal: It has 4 terminal methyl groups and 2 bridging methyl groups. 
  • The bridging carbon atoms lie in a plane with the two aluminum atoms, forming an  Al-C-Al-C-tertacyclic ring.
  • Hybridization: Both the aluminum and the carbon atoms are Sp3 hybridized. 
  • There are only 8 sp3 hybridization atoms present." 
  •  Each Al atom contributes to sp3 hybridization (2 Al atoms), and each of the 6 carbon atoms in the CH3 groups also undergoes sp3 hybridization.
  • All carbons of CH3 group do not lie in the same plane." - In the structure, the terminal CH3 groups are positioned above and below the plane formed by the bridging carbons.
  • There are 52  bond electrons available." - Each CH3 group contributes 6 electrons (from 3-(C-H )bonds), and there are 6 (CH3 groups), contributing 6×6=36 electrons. The 4 Al-C bonds  contribute 2×4= 8 electrons , and there are 2 Al- C-Al banana bonds contribute  2×2= 4  electrons. Thus, the total is (36+8+4 = 48  electrons, 

Arrange the following as decreasing order of dipole moment of Chlorine derivatives of Methane Molecule?

As no. of C-Cl bonds increases the net dipole moment decreases.

CH 3Cl > CH2Cl2 > CHCl3 > CCl4 . 

Related Questions:

(1) The Dipole moment of Chloromethane is more than Fluoromethane. Explain.

(2) CO2 has got dipole moment of zero why?

(3) Dipole moment of CCl4 is zero while that of CHCl3 is non zero. explain.

(4) Compare the dipole moment of H2O and F2O.

(5) Which has more dipole moment of NH3 or NF3?

(6) Which NH3 and NF3 have the highest dipole moment and why?

(7) Why dipole moment of NH3 is lower than NH3?

(8) What is the difference of dipole moment of NH3 and NF3 respectively?

(9) Among CH3OH, CH4, CF4, CO2 and CH3F, which has the highest dipole moment?

Are all the five bonds of PCl5 equivalent? Justify your answer.

Special note for PCl5: 

In PCI₃, there are two types of bonds-Two (P-Cl) axial bond and three (P-CI) equatorial bonds.

Due to repulsion between Cl atom: (P-Cl) axial bonds are longer in bond length (240 pm) and are weaker while (P-Cl) equatorial bonds are shorter in bond length (202 pm). So, PCl5 on heating gives

         PCI,5 --- PCl3 + Cl2