Oxocentered Units in Three Novel Rb‐Containing Copper Compounds Prepared by CVT Reaction Method

Kornyakov, Ilya V.; Krivovichev, Sergey V.; Gurzhiy, Vladislav V.

doi:10.1002/zaac.201700342

Cited by 2 publications

(1 citation statement)

References 25 publications

(26 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Kondinski clusters (M = Fe 3+ , Ti 4+ ) in arsmirandite and lehmannite found in Tolbachik fumaroles provides a useful clue for the targeted synthesis of their analogues under laboratory conditions. As it has been demonstrated previously [49][50][51] , fumarolic minerals with oxocentered cores can be conveniently synthesized using chemical vapor transport techniques. The occurrence of the [M⊂Cu 12 O 8 (AsO 4 ) 8 ] q− nanoclusters in Tolbachik fumaroles testifies that they are stable under high temperatures (500-700 °C) at least in the gaseous and crystalline phases and may as well possess interesting physical and chemical properties.…”

Section: Discussionmentioning

confidence: 99%

Polyoxometalate chemistry at volcanoes: discovery of a novel class of polyoxocuprate nanoclusters in fumarolic minerals

Britvin

Pekov

Yapaskurt

et al. 2020

Sci Rep

View full text Add to dashboard Cite

Polyoxometalate (POM) chemistry is an important avenue of comprehensive chemical research, due to the broad chemical, topological and structural variations of multinuclear polyoxoanions that result in advanced functionality of their derivatives. the majority of compounds in the polyoxometalate kingdom are synthesized under laboratory conditions. However, Nature has its own labs with the conditions often unconceivable to the mankind. The striking example of such a unique environment is volcanic fumaroles-the natural factories of gas-transport synthesis. We herein report on the discovery of a novel class of complex polyoxocuprates grown in the hot active fumaroles of the Tolbachik volcano at the Kamchatka Peninsula, Russia. The cuboctahedral nanoclusters {[Mcu 12 o 8 ](AsO 4) 8 } are stabilized by the core Fe(III) or Ti(IV) cations residing in the unique cubic coordination. The nanoclusters are uniformly dispersed over the anion-and cation-deficient NaCl matrix. Our discovery might have promising implications for synthetic chemistry, indicating the possibility of preparation of complex polyoxocuprates by chemical vapor transport (CVT) techniques that emulate formation of minerals in high-temperature volcanic fumaroles. Polyoxometalates (POMs) constitute a large group of materials with discrete metal-anion clusters of various shapes and sizes 1-3. Traditionally, POMs were associated with d-block metals in high oxidation states (V 5+ , Nb 5+ , Ta 5+ , Mo 6+ and W 6+), but recent studies extended the field to other elements such as actinides 4 and noble metals 5. In 1990, Achim Müller and co-workers 6 introduced the term 'polyoxocuprates' (POCus) to identify clusters formed by polymerization of Cu coordination polyhedra, previously reported for synthetic inorganic compounds such as Ba 44 Cu 45 O 87 Cl 4 and Ba 88 Cu 88 O 175 Br 2

show abstract

Section: Discussionmentioning

confidence: 99%

Polyoxometalate chemistry at volcanoes: discovery of a novel class of polyoxocuprate nanoclusters in fumarolic minerals

Britvin

Pekov

Yapaskurt

et al. 2020

Sci Rep

View full text Add to dashboard Cite

show abstract

Crystal Chemical Relations in the Shchurovskyite Family: Synthesis and Crystal Structures of K2Cu[Cu3O]2(PO4)4 and K2.35Cu0.825[Cu3O]2(PO4)4

Kornyakov

Krivovichev

2021

Crystals

View full text Add to dashboard Cite

Single crystals of two novel shchurovskyite-related compounds, K2Cu[Cu3O]2(PO4)4 (1) and K2.35Cu0.825[Cu3O]2(PO4)4 (2), were synthesized by crystallization from gaseous phase and structurally characterized using single-crystal X-ray diffraction analysis. The crystal structures of both compounds are based upon similar Cu-based layers, formed by rods of the [O2Cu6] dimers of oxocentered (OCu4) tetrahedra. The topologies of the layers show both similarities and differences from the shchurovskyite-type layers. The layers are connected in different fashions via additional Cu atoms located in the interlayer, in contrast to shchurovskyite, where the layers are linked by Ca2+ cations. The structures of the shchurovskyite family are characterized using information-based structural complexity measures, which demonstrate that the crystal structure of 1 is the simplest one, whereas that of 2 is the most complex in the family.

show abstract

Oxocentered Units in Three Novel Rb‐Containing Copper Compounds Prepared by CVT Reaction Method

Cited by 2 publications

References 25 publications

Polyoxometalate chemistry at volcanoes: discovery of a novel class of polyoxocuprate nanoclusters in fumarolic minerals

Polyoxometalate chemistry at volcanoes: discovery of a novel class of polyoxocuprate nanoclusters in fumarolic minerals

Crystal Chemical Relations in the Shchurovskyite Family: Synthesis and Crystal Structures of K2Cu[Cu3O]2(PO4)4 and K2.35Cu0.825[Cu3O]2(PO4)4

Contact Info

Product

Resources

About