Lin S.-C.ASu B.-KLiu Y.-HPeng S.-MSHIUH-TZUNG LIU2022-04-252022-04-25202102767333https://www.scopus.com/inward/record.uri?eid=2-s2.0-85110953647&doi=10.1021%2facs.organomet.1c00226&partnerID=40&md5=ca44683004a96df2e525fee90c0f4e40https://scholars.lib.ntu.edu.tw/handle/123456789/606939Complexation of L [L = 5-phenyl-2,8-di-2-pyridinyl-anthyridine] with [Pd(CH3CN)4](BF4)2 and [Pd(CH3CN)3Cl](BF4) in a molar ratio of 1:2 rendered the corresponding dinuclear complexes [Pd2L (CH3CN)4](BF4)4 (1) and [Pd2L (CH3CN)2Cl2](BF4)2 (2), respectively. However, treatment of L with (COD)PdCl2 followed by anion exchange yielded a tetranuclear complex [Pd4L3Cl4](PF6)4(4a). Structures of these complexes are characterized by both spectroscopy and X-ray crystallography. Interconversion of these three complexes was studied via the manipulation of stoichiometric ratio of ligand to metal precursor. The catalytic activity of these complexes for carbonylative Suzuki-Miyaura cross-coupling was investigated. Complex 2 shows an excellent catalytic activity on the reaction of aryl iodide with arylboronic acid in the presence of atmospheric pressure of CO to give the corresponding benzophenones. ? 2021 American Chemical Society.Atmospheric pressureCatalyst activityLigandsMolar ratioX ray crystallographyArylboronic acidsDinuclear complexInterconversionsMetal precursorPalladium complexesStoichiometric ratioSuzuki-Miyaura cross-couplingTetranuclear complexesPalladium compounds[SDGs]SDG3[SDGs]SDG6journal article10.1021/acs.organomet.1c002262-s2.0-85110953647