Supramolecular photochemistry of encapsulated caged ortho-nitrobenzyl triggers

Kamatham, Nareshbabu; Raj, A. Mohan; Givens, Richard S.; Da Silva, José Paulo; Ramamurthy, V.

http://hdl.handle.net/10400.1/14233

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Abstract(s)

ortho-Nitrobenzyl (oNB) triggers have been extensively used to release various molecules of interest. However, the toxicity and reactivity of the spent chromophore, o-nitrosobenzaldehyde, remains an unaddressed difficulty. In this study we have applied the well-established supramolecular photochemical concepts to retain the spent trigger o-nitrosobenzaldehyde within the organic capsule after release of water-soluble acids and alcohols. The sequestering power of organic capsules for spent chromophores during photorelease from ortho-nitrobenzyl esters, ethers and alcohols is demonstrated with several examples.