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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">Russian Journal of Inorganic Chemistry</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Inorganic Chemistry</journal-title><trans-title-group xml:lang="ru"><trans-title>Журнал неорганической химии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0044-457X</issn><issn publication-format="electronic">3034-560X</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">690761</article-id><article-id pub-id-type="doi">10.31857/S0044457X25080043</article-id><article-id pub-id-type="edn">jjgueo</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>СИНТЕЗ И СВОЙСТВА НЕОРГАНИЧЕСКИХ СОЕДИНЕНИЙ</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">Polyoxotungstenphosphate complexes with hexamethylenetetramine and copper ions</article-title><trans-title-group xml:lang="ru"><trans-title>Полиоксовольфрамофосфатные комплексы с гексаметилентетрамином и ионами меди</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Moroz</surname><given-names>Y. A.</given-names></name><name xml:lang="ru"><surname>Мороз</surname><given-names>Я. А.</given-names></name></name-alternatives><email>jaroslavchem@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shapovalov</surname><given-names>V. A.</given-names></name><name xml:lang="ru"><surname>Шаповалов</surname><given-names>В. А.</given-names></name></name-alternatives><email>jaroslavchem@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lozinsky</surname><given-names>N. S.</given-names></name><name xml:lang="ru"><surname>Лозинский</surname><given-names>Н. С.</given-names></name></name-alternatives><email>jaroslavchem@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tokiy</surname><given-names>N. V.</given-names></name><name xml:lang="ru"><surname>Токий</surname><given-names>Н. В.</given-names></name></name-alternatives><email>jaroslavchem@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Drokina</surname><given-names>T. V.</given-names></name><name xml:lang="ru"><surname>Дрокина</surname><given-names>Т. В.</given-names></name></name-alternatives><email>jaroslavchem@mail.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Vorotynov</surname><given-names>A. M.</given-names></name><name xml:lang="ru"><surname>Воротынов</surname><given-names>А. М.</given-names></name></name-alternatives><email>jaroslavchem@mail.ru</email><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Litvinenko Institute of Physical Organic and Coal Chemistry</institution></aff><aff><institution xml:lang="ru">Институт физико-органической химии и углехимии им. Л.М. Литвиненко</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Galkin Donetsk Institute of Physics and Technology</institution></aff><aff><institution xml:lang="ru">Донецкий физико-технический институт им. А.А. Галкина</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Kirensky Institute of Physics of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт физики им. Л.В. Киренского РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-08-15" publication-format="electronic"><day>15</day><month>08</month><year>2025</year></pub-date><volume>70</volume><issue>8</issue><issue-title xml:lang="en">VOL 70, NO8 (2025)</issue-title><issue-title xml:lang="ru">ТОМ 70, №8 (2025)</issue-title><fpage>1014</fpage><lpage>1020</lpage><history><date date-type="received" iso-8601-date="2025-09-21"><day>21</day><month>09</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</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://transsyst.ru/0044-457X/article/view/690761">https://transsyst.ru/0044-457X/article/view/690761</self-uri><abstract xml:lang="en"><p>Previously undescribed in the literature complexes of tungsten phosphate metallates with copper ions Cu<sup>2+</sup> and hexamethylenetetramine of the composition Rb<sub>5</sub>[PW<sub>11</sub>O<sub>39</sub>Cu(H<sub>2</sub>O)] ‧ 9H<sub>2</sub>O (I), Rb<sub>5</sub>[PW<sub>11</sub>O<sub>39</sub>Cu(C<sub>6</sub>H<sub>12</sub>N<sub>4</sub>)] ‧ ‧ 10H<sub>2</sub>O (II), Rb<sub>5</sub>[PW<sub>11</sub>O<sub>39</sub>Zn<sub>0.95</sub>Cu<sub>0.05</sub>(H<sub>2</sub>O)] ‧ 9H<sub>2</sub>O (III) and Rb<sub>5</sub>[PW<sub>11</sub>O<sub>39</sub>Zn<sub>0.95</sub>Cu<sub>0.05</sub>(C<sub>6</sub>H<sub>12</sub>N<sub>4</sub>)] ‧ 10H<sub>2</sub>O (IV) were synthesized and studied by electron and IR spectroscopy, X-ray phase analysis and electron paramagnetic resonance. The shift of the absorption maximum of copper ions to the long-wavelength region of the spectrum upon transition from [Cu(H<sub>2</sub>O)<sub>6</sub>]<sup>2+</sup> to [PW<sub>11</sub>O<sub>39</sub>Cu(H<sub>2</sub>O)]<sup>5–</sup>, [PW<sub>11</sub>O<sub>39</sub>Zn<sub>0.95</sub>Cu<sub>0.05</sub>(H<sub>2</sub>O)]<sup>5–</sup>, [PW<sub>11</sub>O<sub>39</sub>Cu(C<sub>6</sub>H<sub>12</sub>N<sub>4</sub>)]<sup>5–</sup> and [PW<sub>11</sub>O<sub>39</sub>Zn<sub>0.95</sub>Cu<sub>0.05</sub>(C<sub>6</sub>H<sub>12</sub>N<sub>4</sub>)]<sup>5–</sup>is the result of a change in the magnitude of the ligand field strength in the inner sphere of the complexes. The electron paramagnetic resonance method has established that the magnitude of the ligand field around the octahedrally coordinated Cu<sup>2+</sup> ions of complexes (III) and (IV) is significantly different: the height of the potential barrier of the crystal field at the location of the Cu<sup>2+</sup> ion differs more than twofold, which is due to the replacement of a water molecule by a hexamethylenetetramine molecule C<sub>6</sub>H<sub>12</sub>N<sub>4</sub>. The results of the studies can be useful in the synthesis and establishment of the structure of other polyoxotungstenmetallates with paramagnetic ions in the inner sphere of the complexes.</p></abstract><trans-abstract xml:lang="ru"><p>Синтезированы не описанные ранее в литературе комплексы вольфрамофосфатометаллатов с ионами меди Cu<sup>2+</sup><sup> </sup>и гексаметилентетрамином состава Rb<sub>5</sub>[PW<sub>11</sub>O<sub>39</sub>Cu(H<sub>2</sub>O)] · 9H<sub>2</sub>O (I), Rb<sub>5</sub>[PW<sub>11</sub>O<sub>39</sub>Cu(C<sub>6</sub>H<sub>12</sub>N<sub>4</sub>)] · · 10H<sub>2</sub>O (II), Rb<sub>5</sub>[PW<sub>11</sub>O<sub>39</sub>Zn<sub>0.95</sub>Cu<sub>0.05</sub>(H<sub>2</sub>O)] · 9H<sub>2</sub>O (III) и Rb<sub>5</sub>[PW<sub>11</sub>O<sub>39</sub>Zn<sub>0.95</sub>Cu<sub>0.05</sub>(C<sub>6</sub>H<sub>12</sub>N<sub>4</sub>)] · 10H<sub>2</sub>O (IV). Соединения изучены методами ИК- и электронной спектроскопии, рентгенофазового анализа и электронного парамагнитного резонанса. Сдвиг максимума поглощения ионов меди в длинноволновую область спектра при переходе от [Cu(H<sub>2</sub>O)<sub>6</sub>]<sup>2+</sup> к [PW<sub>11</sub>O<sub>39</sub>Cu(H<sub>2</sub>O)]<sup>5–</sup>, [PW<sub>11</sub>O<sub>39</sub>Zn<sub>0.95</sub>Cu<sub>0.05</sub>(H<sub>2</sub>O)]<sup>5–</sup>, [PW<sub>11</sub>O<sub>39</sub>Cu(C<sub>6</sub>H<sub>12</sub>N<sub>4</sub>)]<sup>5–</sup> и [PW<sub>11</sub>O<sub>39</sub>Zn<sub>0.95</sub>Cu<sub>0.05</sub>(C<sub>6</sub>H<sub>12</sub>N<sub>4</sub>)]<sup>5–</sup> является результатом изменения величины силы поля лигандов во внутренней сфере комплексов. Методом электронного парамагнитного резонанса установлено, что величина поля лигандов вокруг октаэдрически координированных ионов Cu<sup>2+ </sup>комплексов III и IV существенно различается: высота потенциального барьера кристаллического поля в месте нахождения иона Cu<sup>2+</sup> отличается более чем в два раза, что обусловлено заменой молекулы воды на молекулу гексаметилентетрамина C<sub>6</sub>H<sub>12</sub>N<sub>4</sub>. Результаты исследований могут быть полезны при синтезе и установлении строения других полиоксовольфрамометаллатов с парамагнитными ионами во внутренней сфере комплексов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>complex compounds</kwd><kwd>polyoxotungstenmetallates</kwd><kwd>hexamethylenetetramine</kwd><kwd>electron paramagnetic resonance</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>комплексные соединения</kwd><kwd>полиоксовольфрамометаллаты</kwd><kwd>гексаметилентетрамин</kwd><kwd>электронный парамагнитный резонанс</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Pope M.T. Heteropoly and Isopoly Oxometalates. Berlin: Springer-Verlag, 1983. 231 p.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Терещенко Д.С., Бузоверов М.Е., Глазунов Т.Ю. и др. // Журн. неорган. химии. 2023. Т. 68. № 9. 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