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Martínez-Casado FJ, Ramos-Riesco M, Rodríguez-Cheda JA, Redondo-Yélamos MI, Garrido L, Fernández-Martínez A, García-Barriocanal J, da Silva I, Durán-Olivencia M, Poulain A. Lead(ii) soaps: crystal structures, polymorphism, and solid and liquid mesophases. Phys Chem Chem Phys 2018. [PMID: 28636046 DOI: 10.1039/c7cp02351k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The long-chain members of the lead(ii) alkanoate series or soaps, from octanoate to octadecanoate, have been thoroughly characterized by means of XRD, PDF analysis, DSC, FTIR, ssNMR and other techniques, in all their phases and mesophases. The crystal structures at room temperature of all of the members of the series are now solved, showing the existence of two polymorphic forms in the room temperature crystal phase, different to short and long-chain members. Only nonanoate and decanoate present both forms, and this polymorphism is proven to be monotropic. At higher temperature, these compounds present a solid mesophase, defined as rotator, a liquid crystal phase and a liquid phase, all of which have a similar local arrangement. Since some lead(ii) soaps appear as degradation compounds in oil paintings, the solved crystal structures of lead(ii) soaps can now be used as fingerprints for their detection using X-ray diffraction. Pair distribution function analysis on these compounds is very similar in the same phases and mesophases for the different members, showing the same short range order. This observation suggests that this technique could also be used in the detection of these compounds in disordered phases or in the initial stages of formation in paintings.
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Martínez-Casado FJ, Ramos-Riesco M, Rodríguez-Cheda JA, Cucinotta F, Matesanz E, Miletto I, Gianotti E, Marchese L, Matěj Z. Unraveling the Decomposition Process of Lead(II) Acetate: Anhydrous Polymorphs, Hydrates, and Byproducts and Room Temperature Phosphorescence. Inorg Chem 2016; 55:8576-86. [DOI: 10.1021/acs.inorgchem.6b01116] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | - Fabio Cucinotta
- Dipartimento di Scienze e Innovazione Tecnologica and
Nano-SISTeMI Interdisciplinary Centre, Universitá del Piemonte Orientale “A. Avogadro”, via Teresa Michel 11, I-15121 Alessandria, Italy
| | | | - Ivana Miletto
- Dipartimento di Scienze e Innovazione Tecnologica and
Nano-SISTeMI Interdisciplinary Centre, Universitá del Piemonte Orientale “A. Avogadro”, via Teresa Michel 11, I-15121 Alessandria, Italy
| | - Enrica Gianotti
- Dipartimento di Scienze e Innovazione Tecnologica and
Nano-SISTeMI Interdisciplinary Centre, Universitá del Piemonte Orientale “A. Avogadro”, via Teresa Michel 11, I-15121 Alessandria, Italy
| | - Leonardo Marchese
- Dipartimento di Scienze e Innovazione Tecnologica and
Nano-SISTeMI Interdisciplinary Centre, Universitá del Piemonte Orientale “A. Avogadro”, via Teresa Michel 11, I-15121 Alessandria, Italy
| | - Zdeněk Matěj
- MAX IV Laboratory, Lund University, SE-221 00 Lund, Sweden
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Martínez Casado FJ, Cañadillas-Delgado L, Cucinotta F, Guerrero-Martínez A, Ramos Riesco M, Marchese L, Rodríguez Cheda JA. Luminescent lead(ii) complexes: new three-dimensional mixed ligand MOFs. CrystEngComm 2012. [DOI: 10.1039/c2ce06546k] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Martínez Casado FJ, Ramos Riesco M, da Silva I, Redondo Yélamos MI, Rodríguez Cheda JA. Lithium–thallium(i) butyrates binary system: an intermediate salt and liquid crystal from non-mesogenic compounds. RSC Adv 2011. [DOI: 10.1039/c1ra00089f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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Martínez Casado FJ, Ramos Riesco M, da Silva I, Labrador A, Redondo MI, García Pérez MV, López-Andrés S, Rodríguez Cheda JA. Thermal and structural study of the crystal phases and mesophases in the lithium and thallium(i) propanoates and pentanoates binary systems: formation of mixed salts and stabilization of the ionic liquid crystal phase. J Phys Chem B 2010; 114:10075-85. [PMID: 20684631 DOI: 10.1021/jp1031702] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The temperature and enthalpy vs composition phase diagrams of the binary systems [xC(2)H(5)CO(2)Li + (1 - x)C(2)H(5)CO(2)Tl], and [x(n-C(4)H(9)CO(2)Li) + (1 - x)n-C(4)H(9)CO(2)Tl], where x is the mole fraction, were determined by DSC. Both binary systems display the formation of one 2:1 mixed salt each (at x = 0.667) that appear as a peritectic (incongruent melting) at T(fus) = 512.0 K, and T(fus) = 461.1 K, with Delta(fus)H(m) = 13.76 and 8.08 kJ.mol(-1) for Li-Tl (I) propanoates, and n-pentanoate mixed salts, respectively. The thermotropic liquid crystal of the thallium(I) n-pentanoate transforms into a more stable liquid-crystal phase, which appears in the phase diagram between 380 and 488 K and for x = 0 up to x = 0.56. The crystal structure of thallium(I) propanoate and of the two mixed salts were obtained via X-ray synchrotron radiation diffraction measurements. These compounds present a bilayered structure similar to the two pure lithium salts previously found by our group.
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Affiliation(s)
- F J Martínez Casado
- BM16-Laboratori de Llum Sincrotó (LLS), c/o European Synchrotron Radiation Facility, 38043 Grenoble, France
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Martínez Casado FJ, Riesco MR, García Pérez MV, Redondo MI, López-Andrés S, Rodríguez Cheda JA. Structural and Thermodynamic Study on Short Metal Alkanoates: Lithium Propanoate and Pentanoate. J Phys Chem B 2009; 113:12896-902. [DOI: 10.1021/jp9047715] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- F. J. Martínez Casado
- E.S.R.F. (BM16), 38043 Grenoble, France, Departamento de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain, and Departamento de Crystalografía y Mineralogía, Facultad de Ciencias Geológicas, Universidad Complutense, 28040 Madrid, Spain
| | - M. Ramos Riesco
- E.S.R.F. (BM16), 38043 Grenoble, France, Departamento de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain, and Departamento de Crystalografía y Mineralogía, Facultad de Ciencias Geológicas, Universidad Complutense, 28040 Madrid, Spain
| | - M. V. García Pérez
- E.S.R.F. (BM16), 38043 Grenoble, France, Departamento de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain, and Departamento de Crystalografía y Mineralogía, Facultad de Ciencias Geológicas, Universidad Complutense, 28040 Madrid, Spain
| | - M. I. Redondo
- E.S.R.F. (BM16), 38043 Grenoble, France, Departamento de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain, and Departamento de Crystalografía y Mineralogía, Facultad de Ciencias Geológicas, Universidad Complutense, 28040 Madrid, Spain
| | - S. López-Andrés
- E.S.R.F. (BM16), 38043 Grenoble, France, Departamento de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain, and Departamento de Crystalografía y Mineralogía, Facultad de Ciencias Geológicas, Universidad Complutense, 28040 Madrid, Spain
| | - J. A. Rodríguez Cheda
- E.S.R.F. (BM16), 38043 Grenoble, France, Departamento de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain, and Departamento de Crystalografía y Mineralogía, Facultad de Ciencias Geológicas, Universidad Complutense, 28040 Madrid, Spain
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