Question

cyanogen (CN)2 is known as a pseudohalogen because it has some properties similar to halogens. it is composed of two CN's joined together. do the two CN's join through the carbon or the nitrogen (i.e., C-N-N-C or N-C-C-N)?

Answer 1

Answer:

 The correct answer is carbon.

Explanation:

• For each structure, only one octet-rule-compliant structure may be written.
• The formal charge on the C in the structure on the left is 4 -(1/2 6 + 2) = -1. Formally, the N is charged with 5 - 1/2(8) = +1. The formal charge on the C in the structure to the right is 4 -1/2(8) = 0. The formal charge of the N is also zero.
• The carbons serve as the link between the two CNs in cyanogen. In other words, the formula on the right is accurate.

#SPJ3

Answer 2

Answer:

The two CN's are joined through the carbon bond.

Explanation:

• The structure of (CN)$_{2}$ is attached in the image below and can be referred to see that the molecule structure is formed through a C-C bond rather than a C-N bond.
• The reason is that C-C bond is much more strong than C-N bond. The C-C bond is a covalent bond where electrons are shared for the formation of the bond, which makes it stronger than the ionic bond between C-N.
• Moreover, the charge on both nitrogen atoms keeps fluctuating and moving around the whole molecule and this makes the molecule more stable (dissociated charge).

#SPJ1