Iodine, interactions with hydrogen-bond

Weak-electron sharing bonding In magnitude, this is of the same value as the hydrogen bond. It is also the Lewis acid-Lewis base bond (comparable to Brpnsted acids and bases). Such forces might contribute appreciably to cohesiveness at interfaces a typical example is the weak association of iodine (I2) with benzene or any polyaromatic compound. The interaction is the donation of the electrons of I2 to the electron-deficient aromatic molecules (jr-electrons). 

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