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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Доклады Академии наук</journal-id><journal-title-group><journal-title xml:lang="en">Доклады Академии наук</journal-title><trans-title-group xml:lang="ru"><trans-title>Доклады Академии наук</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0869-5652</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">13303</article-id><article-id pub-id-type="doi">10.31857/S0869-5652486183-87</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Geochemistry</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Геохимия</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">New data on fiedlerite-1A from ancient slags of Lavrion, Greece: crystal structure and H-bonding</article-title><trans-title-group xml:lang="ru"><trans-title>Новые данные о фидлерите-1A из античных шлаков Лауриона, Греция: кристаллическая структура и система водородных связей</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zubkova</surname><given-names>N. V.</given-names></name><name xml:lang="ru"><surname>Зубкова</surname><given-names>Н. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>n.v.zubkova@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Chukanov</surname><given-names>N. V.</given-names></name><name xml:lang="ru"><surname>Чуканов</surname><given-names>Н. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>n.v.zubkova@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pekov</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Пеков</surname><given-names>И. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Corresponding Member of the RAS</p></bio><bio xml:lang="ru"><p>Член-корреспондент РАН</p></bio><email>n.v.zubkova@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pushcharovsky</surname><given-names>D. Yu.</given-names></name><name xml:lang="ru"><surname>Пущаровский</surname><given-names>Д. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Academician of the RAS</p></bio><bio xml:lang="ru"><p>Академик РАН</p></bio><email>n.v.zubkova@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Katerinopoulos</surname><given-names>A.</given-names></name><name xml:lang="ru"><surname>Катеринопулос</surname><given-names>А.</given-names></name></name-alternatives><address><country country="GR">Greece</country></address><email>n.v.zubkova@gmail.com</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Voudouris</surname><given-names>P.</given-names></name><name xml:lang="ru"><surname>Вудурис</surname><given-names>П.</given-names></name></name-alternatives><address><country country="GR">Greece</country></address><email>n.v.zubkova@gmail.com</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Magganas</surname><given-names>A.</given-names></name><name xml:lang="ru"><surname>Магганас</surname><given-names>А.</given-names></name></name-alternatives><address><country country="GR">Greece</country></address><email>n.v.zubkova@gmail.com</email><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Lomonosov Moscow State University</institution></aff><aff><institution xml:lang="ru">Московский государственный университет имени М.В. Ломоносова</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Institute of Problem of Chemical Physics of the Russian Academy of Science</institution></aff><aff><institution xml:lang="ru">Институт проблем химической физики Российской академии наук</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">National and Kapodistrian University of Athens</institution></aff><aff><institution xml:lang="ru">Афинский национальный университет имени Каподистрии</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2019-05-26" publication-format="electronic"><day>26</day><month>05</month><year>2019</year></pub-date><volume>486</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>83</fpage><lpage>87</lpage><history><date date-type="received" iso-8601-date="2019-06-07"><day>07</day><month>06</month><year>2019</year></date><date date-type="accepted" iso-8601-date="2019-06-07"><day>07</day><month>06</month><year>2019</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2019, Russian academy of sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2019, Российская академия наук</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="en">Russian academy of sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0869-5652/article/view/13303">https://journals.eco-vector.com/0869-5652/article/view/13303</self-uri><abstract xml:lang="en"><p>The crystal structure (R = 0.0750) of fiedlerite-1A Pb3Cl4F(OH) H2O from ancient slags of Lavrion (Greece) was studied on a single crystal. The mineral is triclinic, a = 8.5741(7), b = 8.0480(5), с = 7.2695(4) Å, (a = 90.087(5), (b = 102.126(6), (g = 103.424(6)) V = 476.37(6) Å3, Z = 2. Pb2+ cations centre bicapped trigonal prisms Pb(1)F(H2O)Cl6, Pb(2)(OH)2FCl5 and Pb(3)(OH)F2Cl5. Additional Pb′site with 10% occupancy was revealed in the structure. There are two basic structure fragments alternating along the a axis: (100) layers formed by Pb(2)- and Pb(3)-centred polyhedra and elongated along the b axis zig-zag chains formed by Pb(1)-centred polyhedra sharing common edges. IR spectrum of fiedlerite-1A is given.</p></abstract><trans-abstract xml:lang="ru"><p>На монокристалле изучена кристаллическая структура (R = 0,0750) фидлерита-1А Pb3Cl4F(OH) · H2O из античных шлаков Лауриона (Греция). Минерал триклинный, a = 8,5741(7), b = 8,0480(5), с = 7,2695(4) Å, a = 90,087(5), b = 102,126(6), g = 103,424(6)°, V = 476,37(6) Å3, Z = 2. Катионы Pb2+ центрируют двухшапочные тригональные призмы Pb(1)F(H2O)Cl6, Pb(2)(OH)2FCl5 и Pb(3)(OH)F2Cl5. В структуре присутствует дополнительная позиция Pb′, на 10% заполненная Pb2+. Выделяются два основных структурных фрагмента, чередующихся вдоль оси a: (100) слои из Pb(2)- и Pb(3)-центрированных полиэдров и зигзагообразные цепочки, вытянутые вдоль оси b, из полиэдров Pb(1), соединённых между собой через общие рёбра. Приведён ИК-спектр фидлерита-1А.</p></trans-abstract><kwd-group xml:lang="en"><kwd>fiedlerite</kwd><kwd>lead fluoride chloride</kwd><kwd>ancient slag</kwd><kwd>Lavrion</kwd><kwd>crystal structure</kwd><kwd>IR-spectroscopy</kwd><kwd>hydrogen bonding</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>фидлерит</kwd><kwd>фторид-хлорид свинца</kwd><kwd>античный шлак</kwd><kwd>Лаурион</kwd><kwd>кристаллическая структура</kwd><kwd>ИК-спектроскопия</kwd><kwd>водородные связи</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="en">Russian Science Foundation</institution></institution-wrap><institution-wrap><institution xml:lang="ru">Российский научный фонд</institution></institution-wrap></funding-source><award-id></award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Gelaude P., Kalmthout P., Rewitzer C. Lavrion, the minerals in the ancient slags. 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