Synthesis and Characterization of Photothermal Osmium Carbolong Complexes

Autor: Chun Tang, Zhixin Chen, Zhengyu Lu, Haiping Xia, Jianfeng Lin, Qin Lin, Shenyan Li, Jiangxi Chen, Xumin He, Meijin Chen
Rok vydání: 2018
Předmět:
Zdroj: Chemistry - A European Journal. 24:8375-8381
ISSN: 0947-6539
DOI: 10.1002/chem.201800656
Popis: Metallacycles with chelating polydentate conjugated-carbon chain ligands are called carbolong complexes, which are expected to have interesting properties. In this work, the preparation of 12-carbon carbolong complexes in which all of the coordinated atoms in the equatorial plane are carbon atoms was studied. With the help of the well-established mechanism, a new approach to prepare coplanar carbolong complexes bearing different organic functional groups was developed by adding different terminal alkynes in sequence. In the presence of HBF4 , these coplanar carbolong complexes were converted to η3 -allyl osmapentalene derivatives, which can be produced directly from the reaction of cyclopropaosmapentalene 1 with terminal alkynes in the presence of AgBF4 under anhydrous conditions. This study offers a new route for the preparation of functional osmium carbolong complexes with excellent photothermal properties, which can be used to prepare photothermal materials.
Databáze: OpenAIRE