Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Igor Oshchapovsky"'
Publikováno v:
BMC Chemistry, Vol 14, Iss 1, Pp 1-14 (2020)
Abstract Naturally occurring phyllosilicate minerals such as talc and vermiculite in conjunction with n-tetra butyl ammonium bromide (TBAB) co-catalyst were found to be efficient in the coupling of CO2 with epoxides to form cyclic carbonates. The rea
Externí odkaz:
https://doaj.org/article/731f72eb87ed40b19324241dce392a3b
Publikováno v:
Journal of Solid State Chemistry. 323:123926
Publikováno v:
Materials Science. 57:53-60
Publikováno v:
Inorganic Chemistry. 58:12590-12600
The crystal structure of the high-temperature modification of the compound Li2Zn5 was determined using single-crystal X-ray diffraction data. It is the first representative of a new binary structure type with triclinic space group P1, where the param
Publikováno v:
Acta Crystallographica Section E, Vol 70, Iss 1, Pp i2-i3 (2014)
The title non-stoichiometric pentalanthanum zinc diplumbide, La5Zn1−xPb2+x (x ≃ 0.6), was prepared from the elements in an evacuated silica ampoule. It adopts the Nb5Sn2Si-type structure (space group I4/mcm, Pearson symbol tI32), a ternary ordere
Externí odkaz:
https://doaj.org/article/f380b029c9c34c2e9286f8d392560757
Publikováno v:
BMC Chemistry
BMC Chemistry, Vol 14, Iss 1, Pp 1-14 (2020)
BMC Chemistry, Vol 14, Iss 1, Pp 1-14 (2020)
Naturally occurring phyllosilicate minerals such as talc and vermiculite in conjunction with n-tetra butyl ammonium bromide (TBAB) co-catalyst were found to be efficient in the coupling of CO2 with epoxides to form cyclic carbonates. The reaction was
Autor:
Andrij Stetskiv, Ivan Tarasiuk, Beata Rozdzynska-Kielbik, Igor Oshchapovsky, Volodymyr Pavlyuk
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 2, Pp i16-i16 (2012)
The new terbium (lithium zinc) distannide, TbLi1–xZnxSn2 (x = 0.2) crystallizes in the orthorhombic CeNiSi2 structure type with space group Cmcm and Pearson symbol oS16. Of the four independent 4c atom positions (m2m site symmetry), three are fully
Externí odkaz:
https://doaj.org/article/d776faaab47e4994985b315a1ff0b511
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 1, Pp i1-i1 (2012)
The crystal structure of the already known binary title compound LaZn5 (lanthanum pentazinc) (space group P6/mmm, Pearson symbol hP6, CaCu5 structure type) has been redetermined from single-crystal X-ray diffraction data. In contrast to previous dete
Externí odkaz:
https://doaj.org/article/f3adae4b9da54758a1ab05c2a5164893
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 11, Pp i65-i65 (2011)
A single crystal of pentalanthanum dizinc stannide, La5Zn2Sn, was obtained from the elements in a resistance furnace. It belongs to the Mo5SiB2 structure type, which is a ternary ordered variant of the Cr5B3 structure type. The space is filled by bic
Externí odkaz:
https://doaj.org/article/0b2ee542e3094fac9d2838fbb80c58c7
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 8, Pp i43-i43 (2011)
The title compound (lanthanum dodecazinc), LaZn12.37 (1), is confirmed to be a nonstoichiometric (zinc-deficient) modification of the NaZn13 structure type, in which one Zn atom (Wyckoff site 8b, site symmetry moverline{3}) has a fractional site occu
Externí odkaz:
https://doaj.org/article/0a59c44b869a4fbe81b57a8183e00f0e