Synthesis and Characterisation of Hg(II) Complexes Including Bidentate Phosphorus Ylides

Abstract

The reaction of asymmetrical phosphorus ylides [Ph 2 PCH 2 PPh 2 =C(H)C(O)C 6 H 4 R] (R=Br, OCH 3 ) with mercury(II) halides yielded the P, C-chelated complexes. Characterisation of these products was carried out by elemental analysis, IR, 1 H, 31 P, and 13 C NMR. Computational studies at DFT (BP86) level of theory are also reported. The electrochemical behaviour of complexes was also investigated by cyclic voltammetry. The synthesised compounds were screened for their antibacterial activities against six Gram negative and positive bacteria.

New complexes of Ni(II) and Cu(II) with tridentate ONO Schiff base ligand: synthesis, crystal structures, electrochemical and theoretical investigation

“…It has been shown that BP86 is a suitable level for the calculation of the bonding situation between the M ← L in complexes such as these [33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50]. Vibrational frequency analyses, done at the same level of theory, indicated that the optimized structures are at the stationary points corresponding to the local minima without any imaginary frequency.…”

Synthesis, characterization and theoretical and fluorescence emission microscopy studies of new Pd/Pt–cyclopropa[60]fullerene complexes: Application of Taguchi method for optimization of parameters in Suzuki–Miyaura reaction

“…Thus, the search for improved methods for the synthesis of these transition metal–fullerene complexes is of considerable importance. Experimental and theoretical studies of the reactivity and coordination chemistry of carbonyl‐stabilized phosphorus ylides are an important research field of our group . Because of various coordination modes of α‐keto‐stabilized phosphorus ylides in metal complexes (P‐, C‐ and P,C‐coordination modes), these compounds are attractive candidates for further development in Pd/Pt–cyclopropa[60]fullerene complexes …”

Spectral, crystallographic, theoretical and antibacterial studies of palladium(II)/platinum(II) complexes with unsymmetric diphosphine ylides

“…Unsymmetric α‐keto‐stabilized ylides derived from diphosphines have shown useful applications in organometallic and inorganic chemistry, especially in the synthesis of products with biological and pharmacological activities . The development of compounds with the ability to inhibit bacterial growth has been of great interest in recent years .…”