68091-61-2Relevant academic research and scientific papers
Highly Luminescent Heavier Main Group Analogues of Boron-Dipyrromethene
Wan, Wang,Silva, Mayura S.,McMillen, Colin D.,Creager, Stephen E.,Smith, Rhett C.
, p. 8703 - 8707 (2019)
The preparation and photophysical properties of two heavier main group element analogues of boron-dipyrromethene (BODIPY) chromophores are described. Specifically, we have prepared dipyrrin complexes of dichlorogallate (GADIPY) or phenylphosphenium (PHODIPY) units. Whereas cationic PHODIPY is labile, decomposing to a phosphine over time, GADIPY is readily prepared in good yield as a crystalline solid having moderate air- and water-stability. Crystallographically characterized GADIPY displays intense green photoluminescence (λem = 505 nm, φem = 0.91 in toluene). These inaugural heavier main group element analogues of BODIPY offer a glimpse into the potential for elaboration to a panoply of chromophores with diverse photophysical properties.
Gallium analogues of iron-sulfide-thiolate compounds. Analysis of the structural parameters in gallium(III) and iron(III) chalcogenide compounds
Maelia, Lynn E.,Koch, Stephen A.
, p. 1896 - 1904 (2008/10/08)
Several gallium-sulfide-thiolate compounds that are structural analogues of the well-known Fe(III)-S2--RS- complexes have been prepared and structurally characterized. Crystalline [Ga(SR)4]- complexes (SR = SMe, SEt, S-i-Pr, SPh, S-2,3,5,6-Me4C6H, S-2,4,6-(i-Pr)3C6H2) have been prepared by the reaction of either GaCl3 or [GaCl4]- with 5 equiv of LiSR. The [Ga(SR)4]- compounds were frequently isomorphous with the corresponding [Fe(SR)4]- complex. The structures of [(n-Pr)4N] [Ga(SEt)4] (1) and [Et4N] [Ga(SPh)4] (2) were determined by X-ray crystallography. Data for 1: tetragonal, I4 space group, with Z = 2, a = b = 10.643 (3) ?, c = 12.433 (2) ?, and V = 1408 (1) ?3. Data for 2: orthorhombic, P212121 space group, with Z = 4, a = 11.449 (3) ?, b = 11.540 (3) ?, c = 24.50 (1) ?, and V = 3237 (4) ?3. The GaS4 core of 1 has nearly perfect Td symmetry, and Ga-S = 2.264 (3) ?. There are two distinctive conformations of the thiolate ligands in the [Ga(SPh)4]- anion of 2. [Et4N]2[Ga2S2(SPh)4] (3), which is an analogue of the FeS compound [Fe2S2(S-p-tol)4]2- (4), has been synthesized and structurally characterized. Data for 3: monoclinic, P21/n space group, with Z = 2, a = 11.359 (3) ?, b = 12.745 (2) ?, c = 15.411 (1) ?, β = 93.56 (2)°, and V = 2227 (1) ?3. The structures of 3 and 4 and related solid-state compounds have been analyzed in the context of a general discussion of the geometric parameters of edge-sharing tetrahedra.
