Salicylic Acid Appended Naphthalene Diimide Organic Linkers: A Systematic Investigation towards Electronic Aspects

Abstract A series of organic linkers (NDI‐1, NDI‐2, NDI‐3) constructed from electron‐deficient naphthalene diimide (NDI) ligand equipped with two terminal salicylic acid having carboxylic and hydroxyl functionality located at different positions provided NDI linkers as a structural platform with tunable properties is presented here. Evaluating the structure and functional relationship offered by prepared NDI organic linkers is a topic of interest related to the design of functionally active building blocks. In this study, synthesis and characterization of all the designed organic linkers were investigated and their photo‐physical properties along with computational studies were performed to establish a correlation between structural design, self‐assembly and intrinsic properties like electrical conductivity and so on. The hydrogen‐bonding assisted conducting properties of the linkers were presented which revealed the possible application of linkers as electro‐active building blocks.