Zobrazeno 1 - 10
of 563
pro vyhledávání: '"Sergey V. Krivovichev"'
Publikováno v:
Crystals, Vol 14, Iss 10, p 857 (2024)
Single crystals of the new modification of copper pyrovanadate, δ-Cu2V2O7, were prepared using the chemical vapor transport reaction method. The crystal structure (monoclinic, P21/n, a = 5.0679(3), b = 11.4222(7), c = 9.4462(6) Å, β = 97.100(6)°,
Externí odkaz:
https://doaj.org/article/ac9a61078a0f41eb9b0f7b092a00e89b
Autor:
Margarita S. Avdontceva, Andrey A. Zolotarev, Andrey P. Shablinskii, Vladimir N. Bocharov, Anatoly V. Kasatkin, Sergey V. Krivovichev
Publikováno v:
Symmetry, Vol 15, Iss 10, p 1871 (2023)
In this study, galeite, Na15(SO4)5ClF4 and schairerite, Na21(SO4)7ClF6 were investigated via in situ single-crystal X-ray diffraction in the temperature range of 300–750 K. Galeite and schairerite are trigonal, P31m, a = 12.1903(2), c = 13.9454(2)
Externí odkaz:
https://doaj.org/article/747017cd92db4878b82a75d2501b9522
Autor:
Sergey V. Krivovichev, Günther Engel
Publikováno v:
Crystals, Vol 13, Iss 9, p 1371 (2023)
The crystal structure of Pb10(PO4)6O, the proposed matrix for the potential room-temperature superconductor LK-99, Pb10−xCux(PO4)6O (x = 0.9–1.0), has been reinvestigated via single-crystal X-ray diffraction using crystals prepared by Merker and
Externí odkaz:
https://doaj.org/article/685bd50c7ff345139328f19419c3d7ae
Publikováno v:
Crystals, Vol 13, Iss 5, p 800 (2023)
The crystal structure of manganotychite has been refined using the holotype specimen from the Alluaiv Mountain, Lovozero massif, Kola peninsula, Russia. The mineral is cubic, Fd3¯, a = 14.0015(3) Å, V = 2744.88(18) Å3, Z = 8, R1 = 0.020 for 388 in
Externí odkaz:
https://doaj.org/article/19c402c3c68f407bae6a4e772e104b37
Publikováno v:
Crystals, Vol 13, Iss 5, p 839 (2023)
The crystal structure of quintinite, Mg4Al2(OH)12(CO3)·3H2O, from the Jacupiranga alkaline complex (Cajati, São Paulo, Brazil), was refined for two samples (91002 and C7029) using single-crystal X-ray diffraction data. The mineral crystallizes in t
Externí odkaz:
https://doaj.org/article/30ee1d7ae4a84b8996fe0213fc434229
Autor:
Andrey A. Zolotarev Jr, Sergey V. Krivovichev, Fernando Cámara, Luca Bindi, Elena S. Zhitova, Frank Hawthorne, Elena Sokolova
Publikováno v:
IUCrJ, Vol 7, Iss 1, Pp 121-128 (2020)
The crystal structure of ilmajokite, a rare Na-K-Ba-Ce-titanosilicate from the Khibiny mountains, Kola peninsula, Russia, has been solved using single-crystal X-ray diffraction data. The crystal structure is based on a 3D titanosilicate framework con
Externí odkaz:
https://doaj.org/article/e64557f4206f479eb3343342c16c1a7a
Autor:
Robert M. Hazen, Robert T. Downs, Ahmed Eleish, Peter Fox, Olivier C. Gagné, Joshua J. Golden, Edward S. Grew, Daniel R. Hummer, Grethe Hystad, Sergey V. Krivovichev, Congrui Li, Chao Liu, Xiaogang Ma, Shaunna M. Morrison, Feifei Pan, Alexander J. Pires, Anirudh Prabhu, Jolyon Ralph, Simone E. Runyon, Hao Zhong
Publikováno v:
Engineering, Vol 5, Iss 3, Pp 397-405 (2019)
Large and growing data resources on the diversity, distribution, and properties of minerals are ushering in a new era of data-driven discovery in mineralogy. The most comprehensive international mineral database is the IMA database, which includes in
Externí odkaz:
https://doaj.org/article/a2d972ba84fe40f7a19228f856cd1d8f
Publikováno v:
Crystals, Vol 12, Iss 8, p 1120 (2022)
The crystal structure of sergeysmirnovite, MgZn2(PO4)2·4H2O (orthorhombic, Pnma, a = 10.6286(4), b = 18.3700(6), c = 5.02060(15) Å, V = 980.26(6) Å3, Z = 4), a new member of the hopeite group of minerals, was determined and refined to R1 = 0.030 u
Externí odkaz:
https://doaj.org/article/8c357e3b31524496a9cd2d8d85d50569
Autor:
Shaunna M. Morrison, Joy Buongiorno, Robert T. Downs, Ahmed Eleish, Peter Fox, Donato Giovannelli, Joshua J. Golden, Daniel R. Hummer, Grethe Hystad, Louise H. Kellogg, Oliver Kreylos, Sergey V. Krivovichev, Chao Liu, Andrew Merdith, Anirudh Prabhu, Jolyon Ralph, Simone E. Runyon, Sabin Zahirovic, Robert M. Hazen
Publikováno v:
Frontiers in Earth Science, Vol 8 (2020)
Large and growing data resources on the spatial and temporal diversity and distribution of the more than 400 carbon-bearing mineral species reveal patterns of mineral evolution and ecology. Recent advances in analytical and visualization techniques l
Externí odkaz:
https://doaj.org/article/0200a84c6ad04d18a53b3ccd2e107c54
Autor:
Gleb O. Samburov, Galina O. Kalashnikova, Taras L. Panikorovskii, Vladimir N. Bocharov, Aleksandr Kasikov, Ekaterina Selivanova, Ayya V. Bazai, Daria Bernadskaya, Viktor N. Yakovenchuk, Sergey V. Krivovichev
Publikováno v:
Crystals, Vol 12, Iss 3, p 311 (2022)
The production of electrolytic nickel includes the stage of leaching of captured firing nickel matte dust. The solutions formed during this process contain considerable amounts of Pb, which is difficult to extraction due to its low concentration upon
Externí odkaz:
https://doaj.org/article/dab2d103eac847da8170fff819c684f6