FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4383501039> ?p ?o ?g. }

• W4383501039 endingPage "116540" @default.
• W4383501039 startingPage "116540" @default.
• W4383501039 abstract "Two organometallic iridium(III) complexes, Ir(ppy)2Cl(NCCH3) (1) and Ir(ppy)2Cl(NCNH2) (2), were accidentally synthesized from the reaction between the chloro-bridged dimer of (ppy)2Ir(μ-Cl)2Ir(ppy)2 and 2-aminobenzothiazole (abt, C7H6N2S) ligand refluxed in dichloromethane under Ar gas. In the obtained complexes, ppy is 2-phenylpyridine, NCCH3 is cyanomethane or acetonitrile, and NCNH2 is the cyanamide ligand. Complex 1 was received instead of the expected Ir(ppy)2Cl(abt) complex, after the reaction completed for 10 h. Acetonitrile entered as a ligand to the coordination sphere of Ir(III) during the precipitation stage. The reaction was repeated, refluxing for 20 h. This time, the abt ligand fragmented into the cyanamide molecule yielding complex 2 instead of the Ir(ppy)2Cl(abt) complex. Single-crystal X-ray analysis revealed the distorted octahedral geometries of both title complexes. The N and C donors of ppy were in their typical trans- and cis- orientations, respectively. The cyanomethane and cyanamide ligands coordinated via the N-atom. Both complexes exhibited similar photo-physical properties. Complexes 1 and 2 emitted green luminescence between 520 and 525 nm when excited with 325 and 350 nm, respectively, at room temperature in dichloromethane. The respective relative quantum efficiencies were 0.06 and 0.08, compared to coumarin 6 in ethanol. The luminescent emission of both complexes was selectively turn-off toward increasing Fe3+ concentrations. The 1:1 binding stoichiometry between the complex and Fe3+ ion was determined by Job's plot. Benesi-Hildebrand plots were applied to determine the binding constants (Kb) of 5.86 × 104 and 9.50 × 104 M−1 for complexes 1 and 2, respectively. The complex 2 displayed in vitro cytotoxicity toward HCC1937 and MDA-MB-231 human breast cancer cells with IC50 values of 13.5 and 72.8 µM, respectively. These values indicated 2–3 folds higher sensitivity than cisplatin. In addition, complex 1 showed inhibitory activity against the Gram-positive bacteria Staphylococcus aureus (SA) and methicillin-resistant Staphylococcus aureus (MRSA), with MIC/MBC values of 32/32 and 32/64 μg. mL−1, respectively." @default.
• W4383501039 created "2023-07-08" @default.
• W4383501039 creator A5018279372 @default.
• W4383501039 creator A5028838604 @default.
• W4383501039 creator A5040953168 @default.
• W4383501039 creator A5049801498 @default.
• W4383501039 creator A5055058519 @default.
• W4383501039 creator A5062554861 @default.
• W4383501039 creator A5092420634 @default.
• W4383501039 creator A5092420635 @default.
• W4383501039 date "2023-10-01" @default.
• W4383501039 modified "2023-10-09" @default.
• W4383501039 title "Iridium(III) complexes based on cyanomethane and cyanamide ligands with luminescence quenching properties for Fe(III) sensing and biological activities" @default.
• W4383501039 cites W1263380949 @default.
• W4383501039 cites W1965493566 @default.
• W4383501039 cites W1969360633 @default.
• W4383501039 cites W1971095004 @default.
• W4383501039 cites W1975714517 @default.
• W4383501039 cites W1977585243 @default.
• W4383501039 cites W1987604053 @default.
• W4383501039 cites W1990170643 @default.
• W4383501039 cites W1996224669 @default.
• W4383501039 cites W1998431408 @default.
• W4383501039 cites W2009295463 @default.
• W4383501039 cites W2020228270 @default.
• W4383501039 cites W2024175762 @default.
• W4383501039 cites W2029836889 @default.
• W4383501039 cites W2031178373 @default.
• W4383501039 cites W2032348116 @default.
• W4383501039 cites W2033336453 @default.
• W4383501039 cites W2039168377 @default.
• W4383501039 cites W2044536657 @default.
• W4383501039 cites W2046506375 @default.
• W4383501039 cites W2047823507 @default.
• W4383501039 cites W2050851572 @default.
• W4383501039 cites W2055081512 @default.
• W4383501039 cites W2056767189 @default.
• W4383501039 cites W2063276794 @default.
• W4383501039 cites W2066863869 @default.
• W4383501039 cites W2073440492 @default.
• W4383501039 cites W2086021375 @default.
• W4383501039 cites W2086737914 @default.
• W4383501039 cites W2089179821 @default.
• W4383501039 cites W2090692360 @default.
• W4383501039 cites W2091352664 @default.
• W4383501039 cites W2116407807 @default.
• W4383501039 cites W2167634525 @default.
• W4383501039 cites W2298569033 @default.
• W4383501039 cites W2335608436 @default.
• W4383501039 cites W2547838553 @default.
• W4383501039 cites W2591604251 @default.
• W4383501039 cites W2596392962 @default.
• W4383501039 cites W2624527746 @default.
• W4383501039 cites W2743398110 @default.
• W4383501039 cites W2745230479 @default.
• W4383501039 cites W2807761939 @default.
• W4383501039 cites W2809039963 @default.
• W4383501039 cites W2810041884 @default.
• W4383501039 cites W2883233238 @default.
• W4383501039 cites W2889475557 @default.
• W4383501039 cites W2903647900 @default.
• W4383501039 cites W2904958214 @default.
• W4383501039 cites W2911917601 @default.
• W4383501039 cites W2913947490 @default.
• W4383501039 cites W2922260688 @default.
• W4383501039 cites W2938295029 @default.
• W4383501039 cites W2948277321 @default.
• W4383501039 cites W2952520505 @default.
• W4383501039 cites W2966407427 @default.
• W4383501039 cites W2981703147 @default.
• W4383501039 cites W2991188715 @default.
• W4383501039 cites W3003494277 @default.
• W4383501039 cites W3029673077 @default.
• W4383501039 cites W3045309975 @default.
• W4383501039 cites W3045346041 @default.
• W4383501039 cites W3084302306 @default.
• W4383501039 cites W3118994416 @default.
• W4383501039 cites W3171886289 @default.
• W4383501039 cites W3173180084 @default.
• W4383501039 cites W3179460932 @default.
• W4383501039 cites W3194223355 @default.
• W4383501039 cites W3196546673 @default.
• W4383501039 cites W3211824156 @default.
• W4383501039 cites W4221055338 @default.
• W4383501039 cites W4221063030 @default.
• W4383501039 cites W4247394465 @default.
• W4383501039 cites W617105491 @default.
• W4383501039 doi "https://doi.org/10.1016/j.poly.2023.116540" @default.
• W4383501039 hasPublicationYear "2023" @default.
• W4383501039 type Work @default.
• W4383501039 citedByCount "0" @default.
• W4383501039 crossrefType "journal-article" @default.
• W4383501039 hasAuthorship W4383501039A5018279372 @default.
• W4383501039 hasAuthorship W4383501039A5028838604 @default.
• W4383501039 hasAuthorship W4383501039A5040953168 @default.
• W4383501039 hasAuthorship W4383501039A5049801498 @default.
• W4383501039 hasAuthorship W4383501039A5055058519 @default.
• W4383501039 hasAuthorship W4383501039A5062554861 @default.

• next