Luminescent 1 H -1,3-benzazaphospholes
2-R-1 H -1,3-Benzazaphospholes (R-BAPs) are an interesting class of fluorescent σ 2 P heterocycles containing PC bonds.
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
Engineering topics
Protasiewicz, John D.
Publications and source records attributed to Protasiewicz, John D..
Organophosphorus decorated lithium borate and phosphate salts with extended π-conjugated backbone
Several new bifunctional salts, Li[B(DPN)2] , Li[B(DPN)(ox)] and Li[P(DPN)3] , have been prepared from the phosphorus( v )-containing chelating ligand 2,3-dihydroxynaphthalene-1,4-(tetraethyl)bis(phosphonate) ( H2-DPN ).
Delgado Rosario, Emalyn↗
Synthesis of Two New Group 13 Benzoato-Chloro Complexes: A Structural Study of Gallium and Indium Chelating Carboxylates
Two new heteroleptic chelated-benzoato gallium (III) and indium (III) complexes have been prepared and structurally characterized. The molecular structures of [GaCl2(4-Mepy)2(O2CPh)]4-Mepy (1) and [InCl(4-Mepy)2(O2CPh)2]4-Mepy (2) have been determined by single-crystal x-ray diffraction. The gallium compound (1) is a distorted octahedron with cis-chloride ligands co-planar with the chelating benzoate and the 4-methylpyridines trans to each other. This is the first example of a Ga(III) structure with a chelating benzoate. The indium compound (2) is a distorted pentagonal bipyramid with two chelating benzoates, one 4-methylpyridine in the plane and a chloride trans to the other 4-methylpyridine. The indium bis-benzoate is an unusual example of a seven-coordinate structure with classical ligands. Both complexes, which due to the chelates, could also be described as pseudo-trigonal bipyramidal, include a three-bladed motif with three roughly parallel aromatic rings that along with a solvent of crystallization and electron-withdrawing chloride ligand(s) stabilize the solid-state structures.
Duraj, Stan A.↗