Reaction of the dirhenium(III,II) complex Re2(μ-O2CCH3)Cl4(μ-dppm)2 with dithioterephthalic acids: A combined experimental and theoretical study

被引：1

作者：

Mallick, Suman ^{[1
]}

Sethi, Himanshi ^{[1
]}

Kaur, Jaspreet ^{[1
]}

Saha, Rajat ^{[2
]}

机构：

[1] Sharda Univ, Sch Basic Sci & Res, Dept Chem & Biochem, Greater Noida 201310, India

[2] Kazi Nazrul Univ, Dept Chem, Asansol 713340, India

来源：

POLYHEDRON | 2023年 / 242卷

关键词：

Metal -metal multiple bond; Dirhenium(III; II); Dithioterephthalic acid; Edge-sharing bioctahedral; Density functional theory; DENSITY-FUNCTIONAL THEORY; AUXILIARY BASIS-SETS; 1ST EXAMPLES; LIGANDS; APPROXIMATION; TRANSITION; BIS(DIPHENYLPHOSPHINO)METHANE; CYTOTOXICITY; ASSEMBLIES; PROGRAM;

D O I：

10.1016/j.poly.2023.116482

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction between the multiply-bonded dirhenium(III,II) complex [Re2(mu-O2CCH3)Cl4(mu-dppm)2] (dppm = Ph2PCH2PPh2) and dithioterephthalic acid or 2,5-dimethyldithioterephthalic acid in refluxing ethanol affords the paramagnetic Re?+ complexes [Re2(mu-Cl)2(mu-dppm)2(12-OSCC6H2R2CO2CH2CH3)2]Cl (R = H, 2; R = Me, 3). In the course of the reaction, one of the thio-acid (COS) coordination sites of the ligand chelated with dirhenium unit whereas another site esterifies with the ethanol solvent. These are the first example of Re2 complexes containing thio-terephthalate ligands. The spectroscopic (UV-vis-NIR, EPR) and electrochemical (CV, DPV) properties of the complexes are reported. The edge-sharing bioctahedral (ESBO) structure of complex 2 has been established by single-crystal X-ray diffraction study. The Re-Re bond length 2.6504(4) angstrom is compatible with the electronic configuration sigma 2 pi 2 delta*2 delta 2 pi*1 obtained from the density functional theory (DFT) calculation. Time dependent DFT (TDDFT) calculation has been included to rationalize the absorption spectra of the complexes.

引用

页数：7

共 50 条

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