Abstract

Three novel neutral Ru(II) complexes were synthesized in good yields using (2,2-dimethoxyethyl)diphenylphosphine, P^∩OO = Ph₂PCH₂CH(OCH₃)₂ hemilabile diether-phosphine of the general formulas Cl₂Ru(P^∩OO)₂ (1) and Cl₂Ru(P^∩OO)₂(N^∩N) (N^∩N = ethylendiamine (2) or 1,2-cyclohexyldiamine (3). The complexes were characterized by ³¹P-, ¹H-, ¹³C NMR, FAB-MS, cyclic voltammetry (CV), UV–Vis, FT-IR, TG/DTA, and XRD. The regular octahedral trans-Cl₂Ru(P^∩OO)₂(N^∩N) structure of trans-3 has been solved by XRD. The C–H⸱⸱⸱Cl₂Ru(II) metallo-supramolecular synthons and C_Me-H⸱⸱⸱H-C_Ph Van-der-Waals (VdW) interactions linking dimers were detected. Hirshfeld surface analysis (HSA) corroborated the XRD-packing result in the presence of several molecular short contacts. The hemilability phenomena in P^∩O ligand served to monitor the reaction process completeness via ³¹P{¹H} NMR. The solvents effects have been investigated via the time-dependent density functional theory (TD-DFT) calculation and experimental solvatochromism using several solvents. The trans to cis- complete solvoisomerization process in the complexes using a chlorinated solvent were regulated by CV and ³¹P{¹H} NMR parallel measurements.

Title

Ismail

Publisher

warad

Publisher Country

Palestine

Publication Type

Prtinted only

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Year

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