Synthesis, Structures, and Photophysical Properties of Two Organostannoxanes from a Novel Acrylic Acid Derived from Phenothiazine

• Published in: European Journal of Inorganic Chemistry 2009-06, Vol.2009 (18), p.2664-2672
• Main Authors: Li, Dongmei, Hu, Rentao, Zhou, Wen, Sun, Pingping, Kan, Yuhe, Tian, Yupeng, Zhou, Hongping, Wu, Jieying, Tao, Xutang, Jiang, Minhua
• Format: Article
• Language: English
• Subjects: Charge transfer; Photophysics; Structure–activity relationship; Tin
• ISSN: 1434-1948; 1099-0682
• DOI: 10.1002/ejic.200900216

(E)‐3‐(10‐ethylphenothiazine‐3‐yl)acrylic acid (LCOOH) was synthesized. LCOOH reacted with Ph3Sn(OH) and nBu2SnO to afford Ph3SnO2CL (1) and {[nBu2SnO2CL]2O}2 (2), respectively. The structures of all the compounds were solved by single‐crystal X‐ray diffraction. Compounds 1 and 2 present discrete and ladder frameworks, respectively. The one‐photon absorption and excited fluorescence, and two‐photon excited fluorescence spectra of all the compounds were systematically investigated. The results show that the two organostannoxanes exhibit much more enhanced two‐photon absorption properties than LCOOH. TDDFT computational studies have been performed to elucidate the electronic structures of the ground state of LCOOH.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009) (E)‐3‐(10‐ethylphenothiazine‐3‐yl)acrylicacid (LCOOH) and two organostannoxanes have been synthesized and fully characterized. Their structures were solvedby single‐crystal X‐ray diffraction determination. The two‐photon absorption properties of the compounds are much more enhanced than that of LCOOH.