Sulfate Donor Based Dinuclear Heteroleptic Triple-Stranded Helicates from Sulfite and Ditopic Nitrogen Donor Ligands and Their Transformation to Dinuclear Homoleptic Double-Stranded Mesocates
| Autor: | K. R. Soumya, Malaichamy Sathiyendiran, Ramar Arumugam, Bhaskaran Shankar |
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| Rok vydání: | 2018 |
| Předmět: |
1h nmr spectroscopy
010405 organic chemistry Supramolecular chemistry chemistry.chemical_element 010402 general chemistry 01 natural sciences Nitrogen 0104 chemical sciences Inorganic Chemistry Crystallography chemistry.chemical_compound Direct Treatment chemistry Sulfite Physical and Theoretical Chemistry Sulfate Homoleptic Double stranded |
| Zdroj: | Inorganic Chemistry. 57:10718-10725 |
| ISSN: | 1520-510X 0020-1669 |
| Popis: | Sulfate donor based supramolecular coordination complexes [{fac-Re(CO)3}(μ-SO4)(Ln)2{fac-Re(CO)3}] (1–3) were obtained using ditopic N donors (Ln; n = 1–3), NaHSO3, and Re2(CO)10 in a one-pot, multicomponent, coordination-driven self-assembly approach, in which SO32– becomes oxidized to SO42– during the reaction and acts as a building framework. Complexes 1–3 were characterized using IR, ESI-TOF-MS, and 1H NMR spectroscopy. The structures of complexes 1–3 were confirmed using single-crystal X-ray diffraction analysis. The transformation of the dinuclear heteroleptic triple-stranded helicate to the dinuclear homoleptic double-stranded mesocate [{Re(CO)3Cl}2(Ln)2] (Ln = L1, L2, L3; 4a–6a) was achieved by the addition of BaCl2. The direct treatment of Re(CO)5X (X = Cl, Br) with L1/L2/L3 yielded the dinuclear homoleptic double-stranded helicates [{Re(CO)3X}2 (Ln)2] (4b–6b and 7–9). |
| Databáze: | OpenAIRE |
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