화학공학소재연구정보센터
Inorganic Chemistry, Vol.50, No.24, 12263-12274, 2011
Four-Coordinate Organoboron Compounds with a pi-Conjugated Chelate Ligand for Optoelectronic Applications
Four-coordinate organoboron compounds with a a-conjugated chelate backbone have emerged recently as highly attractive materials for a number of applications including use as emitters and electron-transport materials for organic light-emitting diodes (OLEDs) or organic field transistors, photoresponsive materials, and sensory and imaging materials. Many applications of this class of boron compounds stern from the electronic properties of the pi-conjugated chelate backbone. Charge-transfer transitions from an aromatic substituent attached to the boron center of the pi-conjugated chelate backbone and steric congestion have also been found to play important roles in the luminescent and photochromic properties of the four-coordinate boron compounds. This article provides an update-to-date account on the application aspects of this important class of compounds in materials science with the emphasis on OLED applications and photochromic switching.