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Aerogel-Based Single-Ion Magnets: A Case Study of a Cobalt(II) Complex Immobilized in Silica. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28010418. [PMID: 36615607 PMCID: PMC9824035 DOI: 10.3390/molecules28010418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/15/2022] [Accepted: 12/27/2022] [Indexed: 01/05/2023]
Abstract
The chemical immobilization of cobalt(II) ions in a silica aerogel matrix enabled the synthesis of the first representative example of aerogel-based single-ion magnets. For the synthesis of the lyogels, methyl-trimethoxysilane and N-3-(trimethoxysilyl)propyl ethylenediamine were co-hydrolyzed, then the ethylenediamine groups that were immobilized on the silica matrix enabled the subsequent binding of cobalt(II) ions. Lyogels with various amounts of ethylenediamine moieties (0.1-15 mol %) were soaked in isopropanol solutions of cobalt(II) nitrate and further supercritically dried in carbon dioxide to obtain aerogels with a specific surface area of 210-596 m2·g-1, an apparent density of 0.403-0.740 cm3·g-1 and a porosity of 60-78%. The actual cobalt content in the aerogels was 0.01-1.50 mmol per 1 g of SiO2, which could easily be tuned by the concentration of ethylenediamine moieties in the silica matrix. The introduction of cobalt(II) ions into the ethylenediamine-modified silica aerogel promoted the stability of the diamine moieties at the supercritical drying stage. The molecular prototype of the immobilized cobalt(II) complex, bearing one ethylenediamine ligand [Co(en)(MeCN)(NO3)2], was synthesized and structurally characterized. Using magnetometry in the DC mode, it was shown that cobalt(II)-modified silica aerogels exhibited slow magnetic relaxation in a nonzero field. A decrease in cobalt(II) concentration in aerogels from 1.5 mmol to 0.14 mmol per 1 g of SiO2 resulted in a weakening of inter-ion interactions; the magnetization reversal energy barrier likewise increased from 4 to 18 K.
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Curtis NF. Compounds of amine-imine macrocycles: Syntheses and structures of compounds of aza-macrocycles with amine-β-imine ring segments. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Clevers S, Coquerel G. Kryptoracemic compound hunting and frequency in the Cambridge Structural Database. CrystEngComm 2020. [DOI: 10.1039/d0ce00303d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Determination of kryptoracemic compound frequency in the Cambridge Structural Database using CCDC Python API script.
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Affiliation(s)
- Simon Clevers
- Normandie Université
- Laboratoire SMS-EA3233
- Université de Rouen Normandie
- Mont Saint Aignan
- France
| | - Gérard Coquerel
- Normandie Université
- Laboratoire SMS-EA3233
- Université de Rouen Normandie
- Mont Saint Aignan
- France
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Towards Generalized Noise-Level Dependent Crystallographic Symmetry Classifications of More or Less Periodic Crystal Patterns. Symmetry (Basel) 2018. [DOI: 10.3390/sym10050133] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Hempler D, Schmidt MU, van de Streek J. Validation of missed space-group symmetry in X-ray powder diffraction structures with dispersion-corrected density functional theory. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2017; 73:756-766. [PMID: 28762985 DOI: 10.1107/s2052520617005935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 04/19/2017] [Indexed: 06/07/2023]
Abstract
More than 600 molecular crystal structures with correct, incorrect and uncertain space-group symmetry were energy-minimized with dispersion-corrected density functional theory (DFT-D, PBE-D3). For the purpose of determining the correct space-group symmetry the required tolerance on the atomic coordinates of all non-H atoms is established to be 0.2 Å. For 98.5% of 200 molecular crystal structures published with missed symmetry, the correct space group is identified; there are no false positives. Very small, very symmetrical molecules can end up in artificially high space groups upon energy minimization, although this is easily detected through visual inspection. If the space group of a crystal structure determined from powder diffraction data is ambiguous, energy minimization with DFT-D provides a fast and reliable method to select the correct space group.
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Affiliation(s)
- Daniela Hempler
- Institute of Inorganic and Analytical Chemistry, Goethe University, Max-von-Laue-Strasse 7, Frankfurt am Main, 60438, Germany
| | - Martin U Schmidt
- Institute of Inorganic and Analytical Chemistry, Goethe University, Max-von-Laue-Strasse 7, Frankfurt am Main, 60438, Germany
| | - Jacco van de Streek
- Institute of Inorganic and Analytical Chemistry, Goethe University, Max-von-Laue-Strasse 7, Frankfurt am Main, 60438, Germany
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Lavrenyuk H, Mykhalichko O, Zarychta B, Olijnyk V, Mykhalichko B. Synthesis, structural, and thermal characterization of a new binuclear copper(II) chelate complex bearing an amine-hardener for epoxy resins. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1212340] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Helen Lavrenyuk
- Department of Burning Processes and General Chemistry, Lviv State University of Life Safety, Lviv, Ukraine
| | - Oleg Mykhalichko
- Chemistry Laboratory, Limitid Liability Company “FUCHS Oil Ukraine”, Lviv, Ukraine
| | | | | | - Borys Mykhalichko
- Department of Burning Processes and General Chemistry, Lviv State University of Life Safety, Lviv, Ukraine
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Oppermann A, Dick R, Wehrhahn C, Flörke U, Herres-Pawlis S, Henkel G. Copper(I) Thiolate Heteroadamantane Cage Structures with Relevance to Metalloproteins. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600247] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Alexander Oppermann
- Fachgruppe Chemie; RWTH Aachen University; Institut für Anorganische Chemie; Landoltweg 1 52074 Aachen Germany
| | - Regina Dick
- Department of Chemistry; Universität Paderborn; Warburger Str. 100 33098 Paderborn Germany
| | - Christoph Wehrhahn
- Department of Chemistry; Universität Paderborn; Warburger Str. 100 33098 Paderborn Germany
| | - Ulrich Flörke
- Department of Chemistry; Universität Paderborn; Warburger Str. 100 33098 Paderborn Germany
| | - Sonja Herres-Pawlis
- Fachgruppe Chemie; RWTH Aachen University; Institut für Anorganische Chemie; Landoltweg 1 52074 Aachen Germany
| | - Gerald Henkel
- Department of Chemistry; Universität Paderborn; Warburger Str. 100 33098 Paderborn Germany
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Synthesis, crystal structure, theoretical study and luminescence property of a butterfly-like W/Cu/S cluster with 1,10-phenanthroline. J CHEM SCI 2015. [DOI: 10.1007/s12039-015-0816-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Dwadnia N, Allouch F, Pirio N, Roger J, Cattey H, Fournier S, Penouilh MJ, Devillers CH, Lucas D, Naoufal D, Ben Salem R, Hierso JC. Aminomethyl-Substituted Ferrocenes and Derivatives: Straightforward Synthetic Routes, Structural Characterization, and Electrochemical Analysis. Organometallics 2013. [DOI: 10.1021/om400317s] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Nejib Dwadnia
- Université de Bourgogne, Institut de Chimie Moléculaire
de l’Université de Bourgogne, UMR-CNRS
6302, 9 avenue Alain Savary, 21078 Dijon, France
| | - Fatima Allouch
- Université de Bourgogne, Institut de Chimie Moléculaire
de l’Université de Bourgogne, UMR-CNRS
6302, 9 avenue Alain Savary, 21078 Dijon, France
| | - Nadine Pirio
- Université de Bourgogne, Institut de Chimie Moléculaire
de l’Université de Bourgogne, UMR-CNRS
6302, 9 avenue Alain Savary, 21078 Dijon, France
| | - Julien Roger
- Université de Bourgogne, Institut de Chimie Moléculaire
de l’Université de Bourgogne, UMR-CNRS
6302, 9 avenue Alain Savary, 21078 Dijon, France
| | - Hélène Cattey
- Université de Bourgogne, Institut de Chimie Moléculaire
de l’Université de Bourgogne, UMR-CNRS
6302, 9 avenue Alain Savary, 21078 Dijon, France
| | - Sophie Fournier
- Université de Bourgogne, Institut de Chimie Moléculaire
de l’Université de Bourgogne, UMR-CNRS
6302, 9 avenue Alain Savary, 21078 Dijon, France
| | - Marie-Josée Penouilh
- Université de Bourgogne, Institut de Chimie Moléculaire
de l’Université de Bourgogne, UMR-CNRS
6302, 9 avenue Alain Savary, 21078 Dijon, France
| | - Charles H. Devillers
- Université de Bourgogne, Institut de Chimie Moléculaire
de l’Université de Bourgogne, UMR-CNRS
6302, 9 avenue Alain Savary, 21078 Dijon, France
| | - Dominique Lucas
- Université de Bourgogne, Institut de Chimie Moléculaire
de l’Université de Bourgogne, UMR-CNRS
6302, 9 avenue Alain Savary, 21078 Dijon, France
| | - Daoud Naoufal
- Université Libanaise, Faculté des Sciences, Laboratoire de Chimie de Coordination Inorganique et Organométallique, Beyrouth-Hadath, Lebanon
| | - Ridha Ben Salem
- Université de Sfax, Faculté
des Sciences, Laboratoire de Chimie
Organique Physique, UR11ES74 3038 Sfax, Tunisia
| | - Jean-Cyrille Hierso
- Université de Bourgogne, Institut de Chimie Moléculaire
de l’Université de Bourgogne, UMR-CNRS
6302, 9 avenue Alain Savary, 21078 Dijon, France
- Institut Universitaire de France (IUF), France
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Avdeeva VV, Dziova AE, Polyakova IN, Goeva LV, Malinina EA, Kuznetsov NT. Redox, complexation, and substitution reactions in [Cu2B10H10]-2,2′-bipyridylamine-CH3CN system. RUSS J INORG CHEM+ 2013. [DOI: 10.1134/s003602361306003x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Small non-polar complexes exhibiting significant piezoelectric properties: Solvothermal synthesis and crystal structures of MO5V(tren)·H2O (M=Mo and W; tren=tris(2-aminoethyl)amine). J SOLID STATE CHEM 2012. [DOI: 10.1016/j.jssc.2012.02.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Shirvan SA, Haydari Dezfuli S, Golabi E. Trichlorido(dimethyl sulfoxide-κO)(di-2-pyridyl-amine-κ(2)N,N')indium(III). Acta Crystallogr Sect E Struct Rep Online 2012; 68:m1256. [PMID: 23125587 PMCID: PMC3470143 DOI: 10.1107/s1600536812038147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Accepted: 09/05/2012] [Indexed: 11/11/2022]
Abstract
In the title compound, [InCl(3)(C(10)H(9)N(3))(C(2)H(6)OS)], the In(III) atom is six-coordinated in a distorted octa-hedral geometry by two N atoms from a chelating di-2-pyridyl-amine ligand, one O atom from a dimethyl sulfoxide ligand and three Cl atoms. Inter-molecular C-H⋯Cl hydrogen bonds and π-π contacts between the pyridine rings [centroid-centroid distance = 3.510 (3) Å] are present in the crystal.
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Affiliation(s)
- Sadif A Shirvan
- Department of Chemistry, Islamic Azad University, Omidieh Branch, Omidieh, Iran
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Dziova AE, Avdeeva VV, Polyakova IN, Belousova ON, Malinina EA, Kuznetsov NT. exo-Polyhedral substitution in B10H 10 2− anion induced by redox reactions in the Cu(I)-B10H 10 2− -L system (L = bipy, bpa). DOKLADY CHEMISTRY 2011. [DOI: 10.1134/s0012500811090035] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Abstract
Magnets composed of molecular components that provide both electron spins and spin-coupling pathways can stabilize bulk magnetic ordering. This was first reported for the ionic, zero-dimensional (0-D) electron transfer salt [Fe(C(5)Me(5))(2)](+)[TCNE]˙(-) (TCNE = tetracyanoethylene), which orders as a ferromagnet at T(c) = 4.8 K. Later V[TCNE](x) (x ∼ 2) was characterized to order above room temperature at 400 K (127 °C). Subsequently, numerous examples of organic- and molecule-based magnets have been characterized. In this critical review, after a discussion of the important aspects of magnetism pertaining to molecule-based magnets, including the determination of the magnetic ordering temperature (T(c)) these magnetically ordered materials are reviewed from a perspective of the structural dimensionality (208 references).
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Affiliation(s)
- Joel S Miller
- Department of Chemistry, University of Utah, Salt Lake City, UT 84112-0850, USA.
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Du XD, Li CH, Zhang Y, Liu S, Ma Y, You XZ. Coordination polymers based on the octamolybdate and flexible bis(triazole) ligands with different spacer lengths. CrystEngComm 2011. [DOI: 10.1039/c0ce00517g] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Sarma R, Boudalis AK, Baruah JB. Aromatic N-oxide bridged copper(II) coordination polymers: Synthesis, characterization and magnetic properties. Inorganica Chim Acta 2010; 363:2279-2286. [PMID: 32226111 PMCID: PMC7094217 DOI: 10.1016/j.ica.2010.03.050] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2010] [Revised: 03/16/2010] [Accepted: 03/19/2010] [Indexed: 11/16/2022]
Abstract
The complexes [Cu2(o-NO2-C6H4COO)4(PNO)2] (1), [Cu2(C6H5COO)4(2,2'-BPNO)] n (2), [Cu2(C6H5COO)4(4,4'-BPNO)] n (3), [Cu(p-OH-C6H4COO)2(4,4'-BPNO)2·H2O] n (4), (where PNO = pyridine N-oxide, 2,2'-BPNO = 2,2'-bipyridyl-N,N'-dioxide, 4,4'-BPNO = 4,4'-bipyridyl-N,N'-dioxide) are prepared and characterized and their magnetic properties are studied as a function of temperature. Complex 1 is a discrete dinuclear complex while complexes 2-4 are polymeric of which 2 and 3 have paddle wheel repeating units. Magnetic susceptibility measurements from polycrystalline samples of 1-4 revealed strong antiferromagnetic interactions within the {Cu2}4+ paddle wheel units and no discernible interactions between the units. The complex 5, [Cu(NicoNO)2·2H2O] n ·4nH2O, in which the bridging ligand to the adjacent copper(II) ions is nicotinate N-oxide (NicoNO) the transmitted interaction is very weakly antiferromagnetic.
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Affiliation(s)
- Rupam Sarma
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781 039, Assam, India
| | | | - Jubaraj B. Baruah
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781 039, Assam, India
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Matiková-Mal'arová M, Černák J, Massa W, Varret F. Syntheses, crystal structures, and properties of two Cd–Fe heterobimetallic compounds with bridgingenanddienligands. J COORD CHEM 2010. [DOI: 10.1080/00958971003690652] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - Juraj Černák
- a Department of Inorganic Chemistry , Institute of Chemistry, P.J. Šafárik University , Košice, Slovakia
| | - Werner Massa
- b Fachbereich Chemie, Philipps Universität , D-35032 Marburg, Germany
| | - François Varret
- c Groupe d’Etudes de la Matière Condensée (ex-Laboratoire de Magnétisme et Optique), Université de Versailles Saint-Quentin , Versailles, France
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Oliver Kahn Lecture: Composition and structure of the V[TCNE]x (TCNE=tetracyanoethylene) room-temperature, organic-based magnet – A personal perspective. Polyhedron 2009. [DOI: 10.1016/j.poly.2008.11.030] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Pazderski L, Tousek J, Sitkowski J, Malináková K, Kozerski L, Szłyk E. Experimental and quantum-chemical studies of 1H, 13C and 15N NMR coordination shifts in Au(III), Pd(II) and Pt(II) chloride complexes with picolines. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2009; 47:228-238. [PMID: 19097135 DOI: 10.1002/mrc.2378] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
(1)H, (13)C and (15)N NMR studies of gold(III), palladium(II) and platinum(II) chloride complexes with picolines, [Au(PIC)Cl(3)], trans-[Pd(PIC)(2)Cl(2)], trans/cis-[Pt(PIC)(2)Cl(2)] and [Pt(PIC)(4)]Cl(2), were performed. After complexation, the (1)H and (13)C signals were shifted to higher frequency, whereas the (15)N ones to lower (by ca 80-110 ppm), with respect to the free ligands. The (15)N shielding phenomenon was enhanced in the series [Au(PIC)Cl(3)] < trans-[Pd(PIC)(2)Cl(2)] < cis-[Pt(PIC)(2)Cl(2)] < trans-[Pt(PIC)(2)Cl(2)]; it increased following the Pd(II) --> Pt(II) replacement, but decreased upon the trans --> cis-transition. Experimental (1)H, (13)C and (15)N NMR chemical shifts were compared to those quantum-chemically calculated by B3LYP/LanL2DZ + 6-31G**//B3LYP/LanL2DZ + 6-31G*.
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Affiliation(s)
- Leszek Pazderski
- Faculty of Chemistry, Nicholas Copernicus University, Gagarina 7, PL-87100 Toruń, Poland.
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Wei ZH, Li HX, Ren ZG, Lang JP, Zhang Y, Sun ZR. Stepwise addition of CuNCS onto [Et4N][Tp*WS3]: Design, syntheses, structures and third-order nonlinear optical properties. Dalton Trans 2009:3425-33. [DOI: 10.1039/b822858b] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Chekhlov AN. Synthesis and crystal structure of bis[(18-crown-6)oxonium]tetrabromomanganese(II). RUSS J GEN CHEM+ 2008. [DOI: 10.1134/s1070363208100058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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A survey of crystal structures published in the Journal of the American Chemical Society. Inorganica Chim Acta 2007. [DOI: 10.1016/j.ica.2007.02.050] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Crystal structure of Co(3-pic)2Cl2 and thermal behaviour of a new complex, Co(py)(3-pic)Cl2. TRANSIT METAL CHEM 2006. [DOI: 10.1007/s11243-006-0075-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Centrosymmetric crystal structures described as non-centrosymmetric: An analysis of reports in Inorganica Chimica Acta. Inorganica Chim Acta 2006. [DOI: 10.1016/j.ica.2005.09.064] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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