Synthesis and structure of rhenium(IV) chloride complexes with acetonitrile

Волков, С. В.; Mykhalichko, B. M.; Pekhn'o, V. I.; Yanko, O. G.; Aleksandrova, N. G.; Khar’kova, L. B.; Arsenin, K. I.

doi:10.1134/s0036023607020088

Cited by 2 publications

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“…The crystal structures of compounds 1 and 2 at ambient pressure have been reported and discussed elsewhere313233. However, it is useful to discuss certain features to understand the structural changes observed with hydrostatic pressure, and the possible effects that such changes may have on the magnetic properties.…”

Section: Resultsmentioning

confidence: 99%

“…Type 3 Å molecular sieves were used to dry the MeCN before use. Compound 1 was prepared following the literature procedure32. The synthesis of 2 was performed following an alternative method to that described in the literature and starting from (NBu 4 ) 2 [ReBr 6 ], which was previously prepared by a metathesis reaction of K 2 ReBr 6 in a 0.5 M HBr solution33.…”

Section: Methodsmentioning

confidence: 99%

“…Curiously, although a straightforward synthetic method to 1 has been known since 1968 (ref. 30), and its crystal structure was recently solved3132, its magnetic behaviour has never been reported. The synthesis and crystal structure of 2 (ref.…”

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confidence: 99%

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Pressure induced enhancement of the magnetic ordering temperature in rhenium(IV) monomers

et al. 2016

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Materials that demonstrate long-range magnetic order are synonymous with information storage and the electronics industry, with the phenomenon commonly associated with metals, metal alloys or metal oxides and sulfides. A lesser known family of magnetically ordered complexes are the monometallic compounds of highly anisotropic d-block transition metals; the ‘transformation' from isolated zero-dimensional molecule to ordered, spin-canted, three-dimensional lattice being the result of through-space interactions arising from the combination of large magnetic anisotropy and spin-delocalization from metal to ligand which induces important intermolecular contacts. Here we report the effect of pressure on two such mononuclear rhenium(IV) compounds that exhibit long-range magnetic order under ambient conditions via a spin canting mechanism, with Tc controlled by the strength of the intermolecular interactions. As these are determined by intermolecular distance, ‘squeezing' the molecules closer together generates remarkable enhancements in ordering temperatures, with a linear dependence of Tc with pressure.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%