Synthesis, spectroscopy, electrochemistry, crystal structures and in vitro cytotoxicity of mononuclear molybdenum(VI) complexes incorporating tridentate ONO donor aroylhydrazone with auxiliary coordination site

A Schiff base colorimetric chemosensor for CN‐ ion and its dioxidomolybdenum (VI) complexes: Evaluation of structural aspects and optoelectronic properties

“…Still it is found to be shorter than the pure C–O single bond distance of 1.42 Å due to the delocalisation of the electrons . The Mo=O distances and the O=Mo=O angles of the complexes are in the usual range for other reported molybdenum complexes . The longest bond distance within the molybdenum coordination sphere is the one between the molybdenum atom and the donor atom (O(6) or N(2)) of the coordinated solvent molecules like methanol, ethanol, pyridine etc.…”

“…The disappearance of absorption corresponding to the ν(O–H) stretch in the spectra of complexes 1 ‐ 6 is indicative of the coordination of the phenolic OH to the metal centre. Similarly the coordination of imine nitrogen to the metal centre is clear from the ν(C=N) values of the complexes between 1607‐1612 cm ‐1 which are slightly lower than the uncoordinated Schiff base . Moreover the IR spectra of the complexes exhibit two strong absorption bands in the regions 831‐843 cm ‐1 and 906‐912 cm ‐1 corresponding to the antisymmetric and symmetric Mo=O stretches respectively, which are characteristic of a cis ‐MoO 2 group .…”

Crystal structure of (N,N-dimethylsulphoxide)-[N-(3-ethoxy-2-(oxide)benzylidene)-3-methoxybenzenecarbohydrazonato-κ3N,O,O′]-dioxo-molybdenum(VI), C19H22MoN2O7S

“…It is now well established that the sixth coordination site in mononuclear dioxidomolybdenum(VI) complexes of ONOdonor Schiff base dianions is labile [5][6][7][8], with exchange between different molecules, e.g. solvent, often observed.…”

“…Further interest in these molecules arises as a result of investigations of putative anti-cancer potential [6,8]. In continuation of structural studies of Mo complexes of Schiff bases [6,9,10], the title complex, (I), with a coordinated DMSO molecule, was investigated crystallographically with a further analysis of the molecular packing performed through the calculated Hirshfeld surfaces. The molecular structure of (I) is shown in the figure (70% displacement ellipsoids).…”

Two ionic oxo‐vanadate and dioxo‐molybdate complexes of dinitro‐aroylhydrazone derivative: Effective catalysts for epoxidation reactions, biological activity, ctDNA binding, density functional theory, andin silicoinvestigations

“…[ 34 ] The high reactivity of MoO 2 ‐arylhydrazone complex in vitro cytotoxicity was evaluated currently by Asha and Kurup. [ 35 ] The antiproliferative and DNA interaction potentials of new MoO 2 complexes of ONO‐aroylhydrazone derivatives were examined and reported by Dinda et al [ 36 ]…”