Synthesis, microstructure and volumetry of novel metal thiocyanate ionic liquids with [BMIM] cation

被引：16

作者：

Cabeza, Oscar ^{[1
]}

Varela, Luis M. ^{[2
]}

Rilo, Esther ^{[1
]}

Segade, Luisa ^{[1
]}

Dominguez-Perez, Montserrat ^{[1
]}

Ausin, David ^{[1
]}

de Pedro, Imanol ^{[3
]}

Rodriguez Fernandez, Jesus ^{[3
]}

Gonzalez, Jesus ^{[3
]}

Pilar Vazquez-Tato, M. ^{[4
]}

Arosa, Yago ^{[2
]}

Lopez-Lago, Elena ^{[2
]}

de la Fuente, Racil ^{[2
]}

Parajo, Juan J. ^{[2
]}

Salgado, Josefa ^{[2
]}

Villanueva, Maria ^{[2
]}

Matveev, Vladimir ^{[5
]}

Ievlev, Alexandr ^{[5
]}

Seijas, Julio A. ^{[4
]}

机构：

[1] Univ A Coruna, Fac Ciencias, Dept Fis & Ciencias Tierra, Campus A Zapateira S-N, E-15071 La Coruna, Spain

[2] Univ Santiago de Compostela, Fac Fis, Dept Fis Particulas & Fis Aplicada, Grp Nanomat Foton & Mat Blanda, Campus Vida S-N, E-15782 Santiago De Compostela, Spain

[3] Univ Cantabria, Fac Ciencias, Dept CITIMAC, Ave Castros S-N, E-39005 Santander, Spain

[4] Univ Santiago de Compostela, Fac Ciencias, Dept Quim Organ, Rua Alfonso X Sabio S-N, E-27002 Lugo, Spain

[5] St Petersburg State Univ, Dept Nucl Phys Res Methods, 7-9 Univ Skaya Nab, St Petersburg 78199034, Russia

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2019年 / 283卷

关键词：

Metal thiocyanates; Ionic liquids; Synthesis; Microstructure; Volumetry; NEGATIVE THERMAL-EXPANSION; BINARY-MIXTURES; THERMOPHYSICAL PROPERTIES; ACTIVITY-COEFFICIENTS; INFINITE DILUTION; PLUS WATER; TEMPERATURE; VISCOSITY; EXTRACTION; SPECTRA;

D O I：

10.1016/j.molliq.2019.03.088

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We present a new family of ionic liquids (ILs) with a common cation, 1-buty1-3-methyl imidazolium, the popular [BMIM](+) (also written C(4)C(1)Im(+)) and a variety of anionic complexes (also called adducts) based in thiocyanate (SCN)(-) : one blank compound, BMIM(SCN), and ten doped with metals having different oxidation states: Al+3, Mn+2, Fe+3, Cr+3, Ni+2, Hg+2, Zn+2, Co+2, Cd+2 and Cu+, forming, respectively, [BMIM](3)[Al(SCN)(6)], [BMIM](4) Mn(SCN)(6), [BMIM](3) Fe(SCN)(6), [BMIM](3) Cr(SCN)(6), [BMIM](4) Ni(SCN)(6), [BMIM](2) Hg(SCN)(4), [BMIM](2) Zn(SCN)(4), [BMIM](2) Co(SCN)(4), [BMIM](2) Cd(SCN)(4) and [BMIM](3) Cu(SCN)(4). All of them were synthesized by us, except the blank IL and the Co thiocyanate, which are commercial. Obtained products have been characterized by NMR, and also by electrospray ionization, MS-ES, which allows the determination of the new ILs purities. Then, compounds have been analyzed using FT-IR and Raman spectroscopy. In addition, magnetic susceptibility and refractive index measurements were performed in some of the compounds studied, as well as thermal characterization using DSC and TGA. Finally, experimental measurements of density on all those ILs have been performed, and for some of the samples in a broad temperature range (about 100 K). In spite of being very similar compounds from the chemical point of view, they present quite different physical properties, including optical, thermal and magnetic ones ... Also, they show different oxidation states (one with +1, six with +2 and other three with +3). We guess that this family of ILs will have interesting applications, mainly for photonic devices. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：638 / 651

页数：14

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