Wednesday, April 23, 2008

Reply to HJ's Question: Are there any compounds with quadriplet bond?

Hj: ms pang,is there such thing as quadriplet bond?

my reply: Should not have at your level. The maximum number of bonds between two atoms is only triple bond. eg:



dot and cross structure of nitrogen molecule


Structural formula ( read as ' N triple bond N ' )


As for the presences of quadruple bond... yes.... mainly in transition metal. Eg: Chromium.

I double check with miss wendy heng regarding HJ's question and I almost forgotten that in uni, we did manage to draw quadruple bond!!! ( many thanks to her ).

Just for your information... not in your secondary syllabus.....


chromium acetate

I edited this diagram so that you can see the quadruple bond easier... the original diagram is blur and show 5 bonds due to low resolutions.

I didnt draw these structures, i got it from this website:

(1) http://www.gcsescience.com/a25.htm ( nirogen molecule )

(2) wwwchem.uwimona.edu.jm:1104/courses/chromium.html ( chromium acetate )

p/s: is KING = Gareth? .. i assume HJ as 'hong jie'

ms pang :)