Synthetic Route of 161265-03-8, Chemistry can be defined as the study of matter and the changes it undergoes. You’ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology.161265-03-8, Name is (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine), molecular formula is C39H32OP2. In a patent, introducing its new discovery.
The syntheses and characterizations of the chelating ligand 6-chloro-60-methyl-2,20-bipyridine (6-Cl-60-Mebpy) and of the copper(I) compounds [Cu(POP)(6-Cl-60-Mebpy)][PF6] and [Cu(xantphos) (6-Cl-60-Mebpy)][PF6] (POP = bis(2-(diphenylphosphanyl)phenyl)ether and xantphos = 4,5-bis (diphenylphosphanyl)-9,9-dimethyl-9H-xanthene) are described. The single crystal structures of both complexes were determined; the copper(I) ion is in a distorted tetrahedral environment and in [Cu(xantphos)(6-Cl-60-Mebpy)][PF6], the disorder of the 6-Cl-60-Mebpy ligand indicates there is no preference of the ‘bowl’-like cavity of the xanthene unit to host either the methyl or chloro-substituent, consistent with comparable steric effects of the two groups. The electrochemical and photophysical properties of [Cu(POP)(6-Cl-60-Mebpy)][PF6] and [Cu(xantphos)(6-Cl-60-Mebpy)][PF6] were investigated and are compared with those of the related compounds containing 6,60-dichloro-2,20-bipyridine or 6,60-dimethyl-2,20-bipyridine ligands. Trends in properties of the [Cu(PP)(NN)]+ complexes were consistent with 6-Cl-60-Mebpy behaving as a combination of the two parent ligands.
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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate