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Ginga VA, Siidra OI, Tsirlin AA, Setzer A, Charkin DO, Börner M, Abdulina VR, Ivanov SA, Gorbachevskaya DA, Zolotov NA. (CN 3H 6)[Fe IIFe III(SO 4) 3(H 2O) 3]: A Framework Iron Sulfate with a Mixed S = 2 and S = 5/2 Honeycomb Lattice. Inorg Chem 2023; 62:17625-17633. [PMID: 37844565 DOI: 10.1021/acs.inorgchem.3c02109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
A new guanidinium-templated hydrated iron sulfate, [CN3H6][FeIIFeIII(SO4)3(H2O)3] (1), was prepared from strongly acidic aqueous solutions. Its crystal structure is comprised from FeIIIO6 and FeIIO3(H2O)3 octahedra linked by sulfate bridges forming a [FeIIFeII(SO4)3(H2O)3]- 3D framework with a layer-by-layer ordering of ferric and ferrous cations. The structural topology of the framework is related to the anhydrous rhombohedral mikasaite Fe2(SO4)3. The removal of part of the sulfate tetrahedra and the partial replacement of the Fe3+ cations in the [Fe3+2(SO4)3]0 framework by Fe2+ provide a negative charge and allow the incorporation of the protonated organic species in the voids. The compound 1 has been characterized by single-crystal X-ray diffraction, TG and DSC analyses, UV-vis-NIR spectroscopy, magnetic susceptibility, Mössbauer spectroscopy, IR and Raman spectroscopy, and density functional band-structure calculations. The magnetic behavior of 1 shows an interplay of FeII (S = 2) and FeIII (S = 5/2) sublattices that exhibit different types of antiferromagnetic couplings, one FeIII-FeIII (J1 ∼ 6.1 K) and two FeII-FeIII couplings (J2 ∼ 1 K, J3 ∼ 5.9 K) within corrugated honeycomb layers. These ferrimagnetic layers are coupled antiparallel to each other, resulting in an overall antiferromagnetic order below TN = 31 K.
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Affiliation(s)
- Victoria A Ginga
- Felix Bloch Institute for Solid-State Physics, Leipzig University, Linnestrasse 5, Leipzig 04103, Germany
- Department of Crystallography, St. Petersburg State University, University emb. 7/9, St. Petersburg 199034, Russia
| | - Oleg I Siidra
- Department of Crystallography, St. Petersburg State University, University emb. 7/9, St. Petersburg 199034, Russia
- Kola Science Center, Russian Academy of Sciences, Apatity, Murmansk Region 184200, Russia
| | - Alexander A Tsirlin
- Felix Bloch Institute for Solid-State Physics, Leipzig University, Linnestrasse 5, Leipzig 04103, Germany
| | - Annette Setzer
- Felix Bloch Institute for Solid-State Physics, Leipzig University, Linnestrasse 5, Leipzig 04103, Germany
| | - Dmitri O Charkin
- Department of Chemistry, Moscow State University, Leninskie Gory 1, Moscow 119991, Russia
| | - Martin Börner
- Institute for Inorganic Chemistry, Leipzig University, Johannisallee 29, Leipzig 04103, Germany
| | - Veronika R Abdulina
- Department of Crystallography, St. Petersburg State University, University emb. 7/9, St. Petersburg 199034, Russia
| | - Semen A Ivanov
- Department of Chemistry, Moscow State University, Leninskie Gory 1, Moscow 119991, Russia
| | - Darya A Gorbachevskaya
- Department of Crystallography, St. Petersburg State University, University emb. 7/9, St. Petersburg 199034, Russia
| | - Nikita A Zolotov
- Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences, Makarova Str. 2, St. Petersburg 199034, Russia
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Ziegler P, Paul N, Müller-Buschbaum P, Wiedemann B, Kreuzpaintner W, Jutimoosik J, Yimnirun R, Setzer A, Esquinazi P, Böni P, Paul A. Self-organization of Fe clusters on mesoporous TiO2templates. J Appl Crystallogr 2014. [DOI: 10.1107/s1600576714021049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Fe layers with thicknesses between 5 and 100 nm were sputtered on mesoporous nanostructured anatase TiO2templates. The morphology of these hybrid films was probed with grazing-incidence small-angle X-ray scattering and X-ray reflectivity, complemented with magnetic measurements. Three different stages of growth were found, which are characterized by different correlation lengths for each stage. The magnetic behavior correlates with the different growth regimes. At very small thicknesses the TiO2template is coated and a porous Fe film results, with in-plane and out-of-plane magnetization components. With increasing thickness, agglomeration of Fe occurs and the magnetization gradually turns mostly in plane. At large thicknesses, the iron grows independently of the template and the magnetization is predominantly in plane with a bulk-like characteristic.
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Bern F, Ziese M, Setzer A, Pippel E, Hesse D, Vrejoiu I. Structural, magnetic and electrical properties of SrRuO3 films and SrRuO3/SrTiO3 superlattices. J Phys Condens Matter 2013; 25:496003. [PMID: 24184982 DOI: 10.1088/0953-8984/25/49/496003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
SrRuO3 films and SrRuO3/SrTiO3 superlattices grown on SrTiO3(001) were studied by structural, magnetic, magnetoresistance and Hall effect measurements. The superlattices showed heteroepitaxial growth with coherent interfaces and a Ru/Ti diffusion region of 1-1.5 unit cells. The resistivity had metallic character above a critical thickness of 3-4 unit cells, becoming insulating below. There was no hint of conduction processes along the interfaces. Both magnetization and magnetoresistance measurements showed an increase of the magnetic anisotropy, consistent with magnetostriction effects. The magnetostriction coefficient was estimated as λ100 ∼ 1.4 × 10(-4). Three unit cell thick SrRuO3 layers in SrRuO3/SrTiO3 superlattices were found to have tetragonal crystal symmetry, as deduced from the sign change of the anomalous Hall constant.
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Affiliation(s)
- F Bern
- Division of Superconductivity and Magnetism, Faculty of Physics and Geosciences, University of Leipzig, D-04103 Leipzig, Germany
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Justino F, Stordal F, Clement A, Coppola E, Setzer A, Brumatti D. Modelling Weather and Climate Related Fire Risk in Africa. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/ajcc.2013.24022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Scheike T, Böhlmann W, Esquinazi P, Barzola-Quiquia J, Ballestar A, Setzer A. Can doping graphite trigger room temperature superconductivity? Evidence for granular high-temperature superconductivity in water-treated graphite powder. Adv Mater 2012; 24:5826-5831. [PMID: 22949348 DOI: 10.1002/adma.201202219] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2012] [Revised: 07/16/2012] [Indexed: 06/01/2023]
Abstract
Granular superconductivity in powders of small graphite grains (several tens of micrometers) is demonstrated after treatment with pure water. The temperature, magnetic field and time dependence of the magnetic moment of the treated graphite powder provides evidence for the existence of superconducting vortices with some similarities to high-temperature granular superconducting oxides but even at temperatures above 300 K. Room temperature superconductivity in doped graphite or at its interfaces appears to be possible.
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Affiliation(s)
- T Scheike
- Division of Superconductivity and Magnetism, Institut für Experimentelle Physik II, Fakultät für Physik und Geowissenschaften der, Universität Leipzig, Linnéstrasse 5, D-04103 Leipzig, Germany
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6
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Rocha V, Corrêa S, Oliveira E, Rodriguez C, Fedullo J, Matrone M, Setzer A, Ikuta C, Vejarano M, Figueiredo S, Ferreira Neto J. Tuberculosis determined by Mycobacterium bovis in captive waterbucks (Kobus ellipsiprymnus) in São Paulo, Brazil. Braz J Microbiol 2011. [DOI: 10.1590/s1517-83822011000200040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Rocha VCM, Corrêa SHR, Oliveira EMD, C A R R, Fedullo JD, Matrone M, Setzer A, Ikuta CY, Vejarano MP, Figueiredo SM, Ferreira Neto JS. Tuberculosis determined by Mycobacterium bovis in captive waterbucks (Kobus ellipsiprymnus) in SÃo paulo, Brazil. Braz J Microbiol 2011; 42:726-8. [PMID: 24031687 PMCID: PMC3769816 DOI: 10.1590/s1517-838220110002000040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2010] [Revised: 06/07/2010] [Accepted: 11/04/2010] [Indexed: 11/21/2022] Open
Abstract
Two waterbucks from São Paulo Zoo Foundation exhibited respiratory symptoms in July 2004. After euthanasia, granulommas in lungs and mediastinic lymph nodes were observed. Acid-fast bacilli isolated were identified as Mycobacterium bovis spoligotype SB0121 by PRA and spoligotyping. They were born and kept in the same enclosure with the same group, without any contact to other species housed in the zoo. This is the first detailed description of M. bovis infection in Kobus ellipsiprymnus.
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Affiliation(s)
- V C M Rocha
- Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo , São Paulo, SP , Brasil
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Esquinazi P, Spemann D, Höhne R, Setzer A, Han KH, Butz T. Induced magnetic ordering by proton irradiation in graphite. Phys Rev Lett 2003; 91:227201. [PMID: 14683267 DOI: 10.1103/physrevlett.91.227201] [Citation(s) in RCA: 101] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2003] [Indexed: 05/24/2023]
Abstract
We provide evidence that proton irradiation of energy 2.25 MeV on highly oriented pyrolytic graphite samples triggers ferro- or ferrimagnetism. Measurements performed with a superconducting quantum interferometer device and magnetic force microscopy reveal that the magnetic ordering is stable at room temperature.
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Affiliation(s)
- P Esquinazi
- Institut für Experimentelle Physik II, Universität Leipzig, Linnéstrasse 5, D-04103 Leipzig, Germany.
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Holben BN, Tanré D, Smirnov A, Eck TF, Slutsker I, Abuhassan N, Newcomb WW, Schafer JS, Chatenet B, Lavenu F, Kaufman YJ, Castle JV, Setzer A, Markham B, Clark D, Frouin R, Halthore R, Karneli A, O'Neill NT, Pietras C, Pinker RT, Voss K, Zibordi G. An emerging ground-based aerosol climatology: Aerosol optical depth from AERONET. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2001jd900014] [Citation(s) in RCA: 1499] [Impact Index Per Article: 65.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Tarasova TA, Nobre CA, Holben BN, Eck TF, Setzer A. Assessment of smoke aerosol impact on surface solar irradiance measured in the Rondônia region of Brazil during Smoke, Clouds, and Radiation - Brazil. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jd900258] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Holben BN, Setzer A, Eck TF, Pereira A, Slutsker I. Effect of dry-season biomass burning on Amazon basin aerosol concentrations and optical properties, 1992-1994. ACTA ACUST UNITED AC 1996. [DOI: 10.1029/96jd01114] [Citation(s) in RCA: 78] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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Schwartz GN, Hakim F, Zujewski J, Szabo JM, Cepada R, Riseberg D, Warren MK, Mackall CL, Setzer A, Noone M, Cowan KH, O'Shaughnessy J, Gress RE. Early suppressive effects of chemotherapy and cytokine treatment on committed versus primitive haemopoietic progenitors in patient bone marrow. Br J Haematol 1996; 92:537-47. [PMID: 8616014 DOI: 10.1046/j.1365-2141.1996.00387.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
These studies investigated the effectiveness of in vivo administration of cytokines in ameliorating potential marrow damage induced by chemotherapy. Breast cancer patients received 5-fluorouracil, leucovorin, doxorubicin and cyclophosphamide (FLAC) followed by either GM-CSF, PIXY321, or no cytokine. Marrow was obtained before and after one or two cycles of FLAC once blood cell counts had recovered. Colony-forming units for granulocytes and macrophages (CFU-GM) were used to indicate the effect of therapy on recovery of committed progenitor cells responsible for early blood cell recovery. The frequency and number of CFU-GM in marrow obtained after FLAC + PIXY321 were significantly lower than in marrow obtained after FLAC+GM-CSF or FLAC without cytokine. CD34+ cell numbers were also reduced after FLAC + PIXY321. CFU-GM production in marrow long-term cultures (LTC) was used to assess the effect of therapy on primitive progenitors. After 5 weeks the number of CFU-GM in LTC of post-therapy marrow from all three treatment arms was < 15% of the number in pre-therapy LTC. Suppressive effects of FLAC on primitive progenitors were observed even when committed progenitors and CD34+ cells had recovered to pre-therapy levels. These results demonstrate that cytokine treatment did not ameliorate suppressive or toxic effects of FLAC on the functional integrity of the marrow.
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Affiliation(s)
- G N Schwartz
- Medicine Branch, National Cancer Institute, Bethesda, Maryland, USA
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Kaufman YJ, Setzer A, Ward D, Tanre D, Holben BN, Menzel P, Pereira MC, Rasmussen R. Biomass Burning Airborne and Spaceborne Experiment in the Amazonas (BASE-A). ACTA ACUST UNITED AC 1992. [DOI: 10.1029/92jd00275] [Citation(s) in RCA: 161] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kaufman YJ, Setzer A, Justice C, Tucker CJ, Pereira MC, Fung I. Remote Sensing of Biomass Burning in the Tropics. Ecological Studies 1990. [DOI: 10.1007/978-3-642-75395-4_16] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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