Synthesis, structural characterization and radiochemistry of di- and tricarbonyl Re(I) and 99mTc(I) complexes with 8-hydroxyquinoline or 8-mercaptoquinoline and triphenylphosphine

Crystal structure of tetraethylammonium fac-tricarbonyl(hexafluoroacetylacetonato-κ 2O,O′)-(nitrato-κO)rhenium(I), C16H21O8N2F6Re

“…+ moiety, primarily because of its potential use in the design of new diagnostic and therapeutic radiopharmaceuticals [2][3][4]. A considerable amount of work, involving the rhenium tricarbonyl core has already been published from our group, and this study forms part of on-going research, aimed at studying the chelation behaviour and structure and reactivity of the rhenium(I) metal centre and other middle and late transition metal complexes' behaviour when coordinated to β-diketone types of ligands [5][6][7][8][9][10][11][12][13][14][15].…”

Crystal structure of fac-aqua[(E)-4-(benzo[d]thiazol-2-yl)-N-(pyridin-2-ylmethylidene)aniline-κ2 N,N′]tricarbonylrhenium(I) hexafluoridophosphate methanol monosolvate

“…, where M is Re or 99m Tc, L 1 is a bidentate ligand (bipyridine, 2-picolinic acid, acetylacetone, etc) and L 2 is a monodentate ligand (aqua, imidazole, phosphine or isocyanide), have been studied extensively for the development of novel radiopharmaceuticals for diagnosis (M = 99m Tc) or radiotherapy (M = 186/188 Re) (Knopf et al, 2017;Mundwiler et al, 2004;Papagiannopoulou et al, 2014;Triantis et al, 2013;Shegani et al, 2017). Furthermore, recent studies have revealed the potential of such fac-[Re(CO) 3 L 1 L 2 ] complexes as anticancer agents (Leonidova & Gasser, 2014).…”

Crystal structure of fac-(acetylacetonato-κ 2 O,O′)tricarbonyl(tri(p-tolyl)phosphine-κP)rhenium(I), C29H28O5PRe

“…The title complex, fac-[Re(Acac)(CO) 3 (P(p-tolyl) 3 )] crystallizes with eight formula units in the unit cell (Z = 8) and the asymmetric unit contains four independent Re(I) complexes (A, B, C and D). The structure displays a typical octahedral geometry with the rhenium centre surrounded by three facial carbonyl ligands, a β-diketonato ligand and a monodentate tri(p-tolyl)phosphine ligand [14][15][16][17][18][19][20]. All four crystallographically independent complexes display distortion in its octahedral geometry, which is evident from the P1A-Re1A-C3A (174.45(12)°), P2B-Re2B-C3B (176.71(10)°), P3C-Re3C-C3C (177.44(11)°) and P4D-Re4D-C3D (175.15(12)°) bond angles.…”