Ruthenium(II) complexes of thiosemicarbazones: Synthesis, X-ray crystal structures, spectroscopy, electrochemistry, DFT studies and fluoride sensing properties

An investigation on 3-acetyl-7-methoxy-coumarin Schiff bases and their Ru(ii) metallates with potent antiproliferative activity and enhanced LDH and NO release

“…The X-ray crystal structures revealed that the complexes 1, 2 and 4 crystallized in the triclinic P 1 space group. In the complexes, the ligands coordinated to the ruthenium ion through the N(1) nitrogen, pyrone carbon C(3) and thiolate sulphur atoms, forming two ve member chelate rings with a bite angle N(1)-Ru(1)-S(1) of 78.39(6) for complex 1, 78.90(1) for complex 2, 79.38 (6) for complex 4, and a bite angle of C(5)-Ru(1)-N(1) of 78.58(8) for complex 1, 78.10(2) for complex 2, C(13)-Ru(1)-N(1) of 78.18 (9) for complex 4. The fourth site is occupied by the carbon atom of the carbonyl group to form a CNSC squareplane.…”

“…Thiosemicarbazides are a versatile class of compounds with indispensable properties such as antitumor, antifungal, antibacterial, antiviral, antiparasitic, etc. [1][2][3][4][5][6] They are N, S donor ligands whose activity can be greatly enhanced by the presence of additional donor sites and a variety of coordination modes can be shown by these systems. [7][8][9] Potential ligands are formed by attaching thiosemicarbazides with carbonyl compounds having a heterocyclic moiety.…”

Synthesis and characterisation of Fe(III) and Co(III) complexes of thiazole-containing thiosemicarbazone ligands

“…Thiosemicarbazone-based ligands are ideal for such a purpose as they are readily and reliably constructed from simple precursors allowing introduction of a large range of substituents. [23][24][25][26][27][28][29][30][31][32] Here we report the synthesis and characterization of three thiazole containing thiosemicarbazone ligands (L1-L3, Fig. 1) and their complexation with Fe(III) and Co(III).…”

Molecularly engineered electroplex emission for an efficient near-infrared light-emitting electrochemical cell (NIR-LEC)

“…Parenthetically, the peek current of the ruthenium polypyridyl complexes is in the order of microamperes. [51][52][53][54][55] The electrochemical behaviour of the DPC ligand includes the oxidation of DPC to DPCO, and then the DPCO oxidises to DPCDO with a potential of around 0.83 (V) and 1.5 (V), respectively 31 (ESI, Fig. S13 †).…”