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First Iridium(IV) Chloride−DimethylSulfoxide Complex [H(dmso)2][IrCl5(dmso-κO)]: Synthesis and Structure along with Novel Polymorph Modifications of [H(dmso)2][trans-IrCl4(dmso-κS)2] and [H(dmso)][trans-IrCl4(dmso-κS)2]статья
- Авторы: Rudnitskaya Olga V., Tereshina Tatiana A., Dobrokhotova Ekaterina V., Kultyshkina Ekaterina K., Chumakova Natalia A., Kokorin Alexander I., Zubavichus Yan V., Khrustalev Victor N.
- Журнал: ACS Omega
- Год издания: 2023
- DOI: 10.1021/acsomega.3c01012
- Аннотация: As evidencedby UV−Vis and EPR spectroscopies, the reaction of H2IrCl6·6H2O or Na2[IrCl6]·nH2O with DMSO results in a slow reduction of Ir(IV) avoiding the formation of Ir(IV)dimethylsulfoxide complexes in measurable quantities. More specifically, we successfully isolated and solved the crystal structure of a sodium hexachloridoiridate(III),Na3[IrCl6]·2H2O, as a product of Na2[IrCl6]·nH2O reduction in an acetone solution. Furthermore, it was shown that[IrCl5(Me2CO)]−species is gradually formed in an acetone solution of H2IrCl6·6H2O upon storage. The reaction of DMSO with aged acetone solution of H2IrCl6·6H2O dominated by[IrCl5(Me2CO)]−affordsanoveliridium(IV)chloride-dimethylsulfoxidesalt[H(dmso)2][IrCl5(dmso-κO)](1). The compound was characterized by various spectroscopies (IR,EPR,UV−Vis)and X-ray diffraction techniques applied both to single-crystal and polycrystalline powder.The DMSO ligand is coordinated to the iridium site via the oxygen atom. New polymorph modifications of known iridium(III) complexes[H(dmso)2][trans-IrCl4(dmso-κS)2]and[H(dmso)][trans-IrCl4(dmso-κS)2] were isolated and structurally elucidated as by products of the above reaction.
- Добавил в систему: Чумакова Наталья Анатольевна