Ruthenium Complexes [Ph3PCH2CH=CHCH2PPh3]2+[trans-RuCl4(Dmso)2]2− and [Ph3PR]+[trans-RuCl4(Dmso)2]–, R = CH2C6H4CN-4, CH2Ph, CPh3, Ph, CH2OCH3: Synthesis and Structure

Abstract

[Ph₃PCH₂CH=CHCH₂PPh₃]²⁺[RuCl₄(Dmso)₂]₂⁻ (I) and [Ph₃PR]⁺[RuCl₄(Dmso)₂]^–, where R= CH₂C₆H₄CN-4 (II), CH₂Ph (III), CPh₃ (IV), Ph (V), CH₂OCH₃ (VI) have been synthesized by the reaction between ruthenium(III) chloride hydrate and triphenylorganylphosphonium chlorides in dimethyl sulfoxide (Dmso). According to X-ray diffraction data, the phosphorus atoms in the cations of complexes I–III have a slightly distorted tetrahedral coordination (CPC angles, 105.04(14)°—113.1(2)°); P–C bonds, 1.791(3)–1.829(4) Å). The dimethylsulfoxide ligands in octahedral [trans-RuCl₄(Dmso-S)₂]^– anions are coordinated to metal atoms via sulfur atoms (Ru–S, 2.3279(9)–2.3494(7) Å; Ru–Cl, 2.3202(10)–2.3598(10) Å). The SRuS, cis-ClRuCl, and trans-ClRuCl angles variate within 178.92(4)°–180°, 88.06(4)°–92.81(4)°, and 176.52(4)°–180°, respectively. The crystal structure organization of complexes I–III is formed by hydrogen bonds Н···O_Dmso (2.19–2.66 Å), Cl···Н (2.57–2.93 Å), and N···Н (2.25–2.54 Å).