Tatiyana V. Serebryanskaya, Alexander S. Lyakhov, Ludmila S. Ivashkevich, Yuri V. Grigoriev, Andreii S. Kritchenkov, Victor N. Khrustalev, Alexander G. Tskhovrebov, Oleg A. Ivashkevich
December 17, 2020
Novel platinum(II) and palladium(II) chlorido complexes with tetrazole derivatives 1-(2-hydroxyethyl)tetrazole (het) and 1-[tris(hydroxymethyl)methyl]tetrazole (thm), viz. cis -[Pt(het) 2 Cl 2 ], trans -[Pt(het) 2 Cl 2 ], trans -[Pt(thm) 2 Cl 2 ], trans -[Pd(het) 2 Cl 2 ], and trans -[Pd(thm) 2 Cl 2 ], were synthesized. The compounds were characterized by elemental and high-resolution electrospray ionization (HRESI) mass spectrometry, high-performance liquid chromatography (HPLC), 1 H, 13 C and 195 Pt nuclear magnetic resonance (NMR) spectroscopy, thermal analyses, and Infrared (IR) spectroscopy. Molecular and crystal structures of trans -[PdL 2 Cl 2 ] and trans -[PtL 2 Cl 2 ] (L = het, thm) were established by single-crystal X-ray analysis. The complex cis -[Pt(het) 2 Cl 2 ] was found to undergo cis –to– trans isomerization upon heating in acetonitrile solution and in the solid state. The synthesized complexes show rather high water solubility lying in the range of 2–10 mg/L.