Raghava Tanya, Banerjee Subhadeep
Department of Chemistry, BITS Pilani K.K. Birla Goa Campus, NH 17B, Bypass Road, Zuarinagar, Goa, 403726, India.
Chem Asian J. 2024 Dec 2;19(23):e202400898. doi: 10.1002/asia.202400898. Epub 2024 Oct 28.
This review article discusses the emerging amino-terephthalonitrile (Am-TN) and amino terephthalate-based single benzene fluorophores (SBFs) for their highly emissive nature and potential for numerous technical applications. Am-TN-SBFs are a new class of SBFs having amine as the electron donating (EDG) and dinitrile as the electron withdrawing group (EWG). The beauty of these Am-TN-SBFs lies in excellent intramolecular charge transfer between the EDG and EWG. The placement of two nitrile groups in para-position on the benzene ring allows better charge transfer from the donating amines to the linear nitrile group leading to the strongly emissive nature. We also outline here the latest developments in the well-known family of amino terephthalate SBFs reported in the last 2 to 3 years. Amino terephthalate SBFs have esters as the EWG and amine as the EDG. These have intramolecular H-bonding between the EDG and EWG which is responsible for their emissive behavior.
这篇综述文章讨论了新兴的氨基对苯二甲腈（Am-TN）和基于氨基对苯二甲酸酯的单苯荧光团（SBF），因其具有高发射特性以及在众多技术应用中的潜力。Am-TN-SBF是一类新型的SBF，其具有胺作为供电子基团（EDG）和二腈作为吸电子基团（EWG）。这些Am-TN-SBF的美妙之处在于EDG和EWG之间出色的分子内电荷转移。苯环上两个腈基处于对位的位置使得供电子胺向线性腈基的电荷转移更好，从而导致其具有强发射特性。我们在此还概述了过去两到三年中报道的著名氨基对苯二甲酸酯SBF家族的最新进展。氨基对苯二甲酸酯SBF以酯作为EWG，胺作为EDG。它们在EDG和EWG之间存在分子内氢键，这是其发射行为的原因。
