Mg in Chloropyll

• hoay

  12 Dec 16, 22:13

  Given the strutucre of chloropyll what is correct

   

  1 dative covalency

  2 sigma bond

  3 sp3 hybridization

   

  1 and 2 are correct...but not sure about 3?? 

  Ohh....Is'nt due to dative and covalent bonding the shape around Mg is tetrahedral so sp3 hybridization ould be correct also....? Is this correct? 

   

• UltimaOnline

  13 Dec 16, 01:04

  Originally posted by hoay:

  Given the strutucre of chloropyll what is correct

   

  1 dative covalency

  2 sigma bond

  3 sp3 hybridization

   

  1 and 2 are correct...but not sure about 3?? 

  Ohh....Is'nt due to dative and covalent bonding the shape around Mg is tetrahedral so sp3 hybridization ould be correct also....? Is this correct? 

   

  
  Not sp3, because the aromatic ring (either porphyrin or chlorin, depending on the exact chlorophyll type) is planar.
• hoay

  13 Dec 16, 01:43

  so 1 and 2 are correct....B is the answer.

   

  This is Q.32 of the MCQ paper (Singapore A-level) November 2010. Can you tell me the coreet answer? 

  I am searching old threads but could not find anything...may be i missed.

• UltimaOnline

  13 Dec 16, 02:03

  Originally posted by hoay:

  so 1 and 2 are correct....B is the answer.

   

  This is Q.32 of the MCQ paper (Singapore A-level) November 2010. Can you tell me the coreet answer? 

  I am searching old threads but could not find anything...may be i missed.

  
  As you already said, B is the correct answer.
• hoay

  13 Dec 16, 02:09

  okay.

  but what is he hybridization of Mg in this question? sp ?

• UltimaOnline

  13 Dec 16, 02:23

  Originally posted by hoay:

  okay.

  but what is he hybridization of Mg in this question? sp ?

  
  dsp2
• hoay

  13 Dec 16, 02:29

  okay.