Výsledky vyhledávání - "Stefano Merlino"

Polytypism of Ln(SeO3)(HSeO3)·2H2O compounds: synthesis and crystal structure of the first monoclinic modification of Nd(SeO3)(HSeO3)·2H2O, DFT calculations and order/disorder description

Autor: Alisher F. Murtazoev, Peter S. Berdonosov, Sergey M. Aksenov, Alexey N. Kuznetsov, Valery A. Dolgikh, Yulia V. Nelyubina, Stefano Merlino

Publikováno v: Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials. 79:176-183

Compounds with the general formula Ln3+(SeO3)(HSeO3)·2H2O, where Ln = Sm3+, Tb3+, Nd3+ and Lu3+, are characterized by orthorhombic symmetry with space group P212121 and unit-cell parameters in the ranges a ∼ 6.473–6.999, b ∼ 6.845–7.101, c �

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c4be319460e21b67946c5c2c5e3776a6
https://doi.org/10.1107/s2052520622012227

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Paratobermorite, Ca4(Al0.5Si0.5)2Si4O16(OH)·2H2O·(Ca·3H2O), a new tobermorite-supergroup mineral with a novel topological type of the microporous crystal structure

Autor: Igor V. Pekov, Natalia V. Zubkova, Nikita V. Chukanov, Stefano Merlino, Vasiliy O. Yapaskurt, Dmitry I. Belakovskiy, Alexander B. Loskutov, Elena A. Novgorodova, Svetlana A. Vozchikova, Sergey N. Britvin, Dmitry Yu Pushcharovsky

Publikováno v: American Mineralogist. 107:2272-2281

A new mineral paratobermorite with the ideal crystal-chemical formula Ca4(Al0.5Si0.5)2Si4O16 (OH)·2H2O·(Ca·3H2O) is a member of the tobermorite group within the tobermorite supergroup. It was found at the Bazhenovskoe chrysotile asbestos deposit,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c10651f3d99ebc8fe5184e666c71aedb
https://doi.org/10.2138/am-2022-8284

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Polymorphism, polytypism and modular aspect of compounds with the general formula A 2 M 3(TO4)4 (A = Na, Rb, Cs, Ca; M = Mg, Mn, Fe3+, Cu2+; T = S6+, P5+): order–disorder, topological description and DFT calculations

Autor: Sergey Aksenov, Andrey Antonov, Dina Deyneko, Sergey Krivovichev, Stefano Merlino

Publikováno v: Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials. 78:61-69

The crystal structure of Na2Mn3(SO4)4 [unit-cell parameters a = 14.8307 (18), b = 9.9107 (18), c = 8.6845 (12) Å, space group Cmc21] displays order–disorder (OD) character and can be described using the OD groupoid family, more precisely a family

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eeef7baf27392c2b9f72026be6635473
https://doi.org/10.1107/s2052520621009136

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Order-disorder Twinning of Malachite

Autor: Emil Makovicky, Stefano Merlino

Publikováno v: The Canadian Mineralogist. 57:475-488

Malachite has a layered structure composed of triangular CO3 groups and CuO2(OH)2 coordination squares of two types. In 2D projection, each layer can be decomposed into two OD strips: the A strip, containing CO3 groups and square co-ordinations of Cu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::08073c8fe18a0624836cfb1fc9097e99
https://doi.org/10.3749/canmin.1900007

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Arsenmarcobaldiite, Pb12(As3.2Sb2.8)Σ=6S21, a new N = 3.5 jordanite homologue from the Sant’Anna tectonic window, Apuan Alps (Tuscany, Italy)

Autor: Yves Moëlo, Federica Zaccarini, Stefano Merlino, Werner H. Paar, Simone Vezzoni, Marco Pasero, Cristian Biagioni

Publikováno v: European Journal of Mineralogy
European Journal of Mineralogy, Copernicus, 2019, 31 (5-6), pp.1067-1077. ⟨10.1127/ejm/2019/0031-2888⟩
European journal of mineralogy
31 (2021): 1067–1077. doi:10.1127/ejm/2019/0031-2888
info:cnr-pdr/source/autori:Biagioni C.[1], Moëlo Y.[2], Merlino S.[1], Pasero M.[1], Paar W.H.[3], Vezzoni S.[4], Zaccarini F. [5]/titolo:Arsenmarcobaldiite, Pb12(As3.2Sb2.8)summation =6S21, a new N = 3.5 jordanite homologue from the Sant'Anna tectonic window, Apuan Alps (Tuscany, Italy)/doi:10.1127%2Fejm%2F2019%2F0031-2888/rivista:European journal of mineralogy (Print)/anno:2021/pagina_da:1067/pagina_a:1077/intervallo_pagine:1067–1077/volume:31

The new mineral species arsenmarcobaldiite, Pb12(As3.2Sb2.8) summation=6S21, occurs as black anhedral grains, up to 0.5 mm in size, with metallic lustre, associated with pyrite and minor sphalerite, within layers of granoblastic quartz and accessory

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9b68f8c5de9582e28296f7e05a8122f
https://hal.archives-ouvertes.fr/hal-02445300

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Polytypism of Compounds with the General Formula Cs{Al2[TP6O20]} (T = B, Al): OD (Order-Disorder) Description, Topological Features, and DFT-Calculations

Autor: Sergey V. Krivovichev, Natalia A. Yamnova, Stefano Merlino, Andrey A. Antonov, Sergey M. Aksenov, Alexey N. Kuznetsov

Publikováno v: Minerals, Vol 11, Iss 708, p 708 (2021)
Minerals
Volume 11
Issue 7

The crystal structures of compounds with the general formula Cs{[6]Al2[[4]TP6O20]} (where T = Al, B) display order−disorder (OD) character and can be described using the same OD groupoid family. Their structures are built up by two kinds of nonpola

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c56e6d4e00b24c3069929fb061a65add
https://doi.org/10.3390/min11070708

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Thermal behaviour of Al-rich tobermorite

Autor: Stefano Merlino, Marco Lezzerini, Elena Bonaccorsi, Cristian Biagioni

Publikováno v: European Journal of Mineralogy. 28:23-32

The tobermorite supergroup is composed by a number of calcium-silicate-hydrate (C-S-H) minerals characterized by different hydration states and sub-cell symmetries. Taking into account their basal spacing, closely related to the hydration state, phas

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::227b67dc4d92fadded5c376482ac959d
https://doi.org/10.1127/ejm/2015/0027-2499

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The tobermorite supergroup: a new nomenclature

Autor: Elena Bonaccorsi, Cristian Biagioni, Stefano Merlino

Publikováno v: Mineralogical Magazine. 79:485-495

The name 'tobermorites' includes a number of calcium silicate hydrate (C-S-H) phases differing in their hydration state and sub-cell symmetry. Based on their basal spacing, closely related to the degree of hydration, 14, 11 and 9 Å compounds have be

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d084a4b5c325d8eb678d1b2720162e3
https://doi.org/10.1180/minmag.2015.079.2.22

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