π-Donor BETS Based Bifunctional Superconductor with Polymeric Dicyanamidomanganate(II) Anion Layer: κ-(BETS)2Mn[N(CN)2]3

2008 ◽  
Vol 130 (23) ◽  
pp. 7238-7240 ◽  
Author(s):  
Nataliya D. Kushch ◽  
Eduard B. Yagubskii ◽  
Mark V. Kartsovnik ◽  
Lev I. Buravov ◽  
Alexander D. Dubrovskii ◽  
...  
Keyword(s):  
Anion Layer

Composition and Structure of the Anion Layer in the Organic Superconductorκ‘-(ET)2Cu2(CN)3:  Optical Study

2001 ◽  
Vol 40 (14) ◽  
pp. 3265-3266 ◽  
Author(s):  
Olga Drozdova ◽  
Gunzi Saito ◽  
Hideki Yamochi ◽  
Kenji Ookubo ◽  
Kyuya Yakushi ◽  
...  
Keyword(s):  
Optical Study ◽  
Anion Layer ◽  
Composition And Structure

scholarly journals Specific Structural Disorder in an Anion Layer and Its Influence on Conducting Properties of New Crystals of the (BEDT-TTF)4A+[M3+(ox)3]G Family, Where G Is 2-Halopyridine; M Is Cr, Ga; A+ Is [K0.8(H3O)0.2]+

Crystals ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 92 ◽  
Author(s):  
Tatiana Prokhorova ◽  
Eduard Yagubskii ◽  
Leokadiya Zorina ◽  
Sergey Simonov ◽  
Vladimir Zverev ◽  
...  
Keyword(s):  
Structural Disorder ◽  
Anion Layer

Chiral anionic layers in tartramide spiroborate salts and variable solvation for [NR 4][B(TarNH2)2] (R = Et, Pr or Bu)

2020 ◽  
Vol 76 (7) ◽  
pp. 695-705
Author(s):  
Aristyo Soecipto ◽  
Lawrence W.-Y. Wong ◽  
Herman H.-Y. Sung ◽  
Ian D. Williams
Keyword(s):  
Hydrogen Bonding ◽  
Self Assembly ◽  
Interfacial Area ◽  
Intermolecular Hydrogen Bonding ◽  
Two Dimensional ◽  
Salt Hydrate ◽  
Anion Layer ◽  
Cation Layer ◽  
Layer Structures ◽  
Solvent Molecules

The spiroborate anion, namely, 2,3,7,8-tetracarboxamido-1,4,6,9-tetraoxa-5λ4-boraspiro[4.4]nonane, [B(TarNH2)2]−, derived from the diol L-tartramide TarNH2, [CH(O)(CONH2)]2, shows a novel self-assembly into two-dimensional (2D) layer structures in its salts with alkylammonium cations, [NR 4]+ (R = Et, Pr and Bu), and sparteinium, [HSpa]+, in which the cations and anions are segregated. The structures of four such salts are reported, namely, the tetrapropylazanium salt, C12H28N+·C8H12BN4O8 −, the tetraethylazanium salt hydrate, C8H20N+·C8H12BN4O8 −·6.375H2O, the tetrabutylazanium salt as the ethanol monosolvate hemihydrate, C16H36N+·C8H12BN4O8 −·C2H5OH·0.5H2O, and the sparteinium (7-aza-15-azoniatetracyclo[7.7.1.02,7.010,15]heptadecane) salt as the ethanol monosolvate, C15H27N2 +·C8H12BN4O8 −·C2H5OH. The 2D anion layers have preserved intermolecular hydrogen bonding between the amide groups and a typical metric repeat of around 10 × 15 Å. The constraint of matching the interfacial area organizes the cations into quite different solvated arrangements, i.e. the [NEt4] salt is highly hydrated with around 6.5H2O per cation, the [NPr4] salt apparently has a good metric match to the anion layer and is unsolvated, whilst the [NBu4] salt is intermediate and has EtOH and H2O in its cation layer, which is similar to the arrangement for the chiral [HSpa]+ cation. This family of salts shows highly organized chiral space and offers potential for the resolution of both chiral cations and neutral chiral solvent molecules.

Synthese und Kristallstruktur von Triphenylmethylphosphoniumtriiodid [P(C6H5)3CH3]I3 / Synthesis and Crystal Structure of [P(C6H5)3CH3]I3

1991 ◽  
Vol 46 (6) ◽  
pp. 703-708 ◽  
Author(s):  
Mervat El Essawi ◽  
Sawsan Abd El Khalik ◽  
H. J. Berthold ◽  
R. Wartchow
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Least Squares ◽  
Crystal And Molecular Structure ◽  
Orthorhombic Space Group ◽  
Synthesis And Crystal Structure ◽  
Space Group ◽  
Anion Layer ◽  
Deep Violet

Triphenylmethylphosphonium triiodide [P(C6H5)3CH3]I3 has been prepared by the reaction of [P(C6H5)3CH3]I with iodine in ethanol. Deep violet crystals were obtained by recrystallization from dichloromethane.The crystal and molecular structure of the compound has been determined. The crystals are orthorhombic, space group Pbca, Z = 8, a = 1182.2(2), b = 1987.6(3), c = 1798.8(3) pm.Least squares refinement of the structure yielded R = 0.038 (Rw = 0.030, RG = 0.030) for 2433 independent reflections.The triodide ion I3- is slightly asymmetrical and slightly bent. The distances are 293.7(1) pm (I(1)—I(2)) and 291.7(1) pm (I(2)—I(3)), the angle I(1)—I(2)—I(3) is 179.3(1)°.The structure contains layers perpendicular to the c axis, which follow each other with a period of c/2 and are built up by I3- anions and [P(C6H5)3CH3]+ cations. They are stacked to give layers of cations and layers of anions perpendicular to the b axis. The shortest I ··· I distance between I3- ions in the anion layer occurs in the c direction. It amounts to 414 pm, thus indicating that there are only very weak I ··· I interactions between the I3- ions. Further I ··· I contacts in the layer lie between 510 and 746 pm.

Design of Organic Superconductors Based on Bedt-TTF

1992 ◽  
Vol 247 ◽  
Author(s):  
Gunzi Saito ◽  
Tokutaro Komatsu ◽  
Toshikazu Nakamura ◽  
Hideki Yamochi
Keyword(s):  
Cell Volume ◽  
Structural Properties ◽  
Unit Cell Volume ◽  
Structural Characteristics ◽  
Three Dimensional ◽  
Organic Superconductors ◽  
Unit Cell ◽  
Two Dimensional ◽  
Effective Volume ◽  
Anion Layer

ABSTRACTA close examination of the relation between Tc and structural characteristics of BEDT-TTF superconductors has revealed that there is a good correlation between the effective volume (VeffαVc-Vanion and Tc but no such correlation between the unit cell volume (Vc) and Tc. In order to increase Veff, it is favorable to use big but thin anion which can form a thin two-dimensional anion layer. Three-dimensional donor interactions are critical to have sizable Tc. According to the designing, two new superconductors; K-(BEDT-TTF)2CuCN[N(CN)2] (Tc=11.2K) and K'-(BEDT-TTF)2Cu2(CN)3 (Tc=3.8K), are prepared and their physical and structural properties are described. Their Tc's are discussed in terms of veff.

Effect of mixed anion layer on energy band, charge separation and photochemical properties of (BiO)2OHCl

2018 ◽  
Vol 224 ◽  
pp. 116-124 ◽  
Author(s):  
Yifei Zhai ◽  
An Zhang ◽  
Fei Teng ◽  
Yang Yang ◽  
Wenhao Gu ◽  
...  
Keyword(s):  
Energy Band ◽  
Charge Separation ◽  
Anion Layer ◽  
Photochemical Properties

Investigation on the effect of an anion layer on photocatalytic activity: carbonate vs. oxalate

2017 ◽  
Vol 41 (15) ◽  
pp. 7073-7080 ◽  
Author(s):  
Weiyi Hao ◽  
Fei Teng ◽  
Wenhao Gu ◽  
Zailun Liu ◽  
An Zhang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Charge Separation ◽  
Separation Efficiency ◽  
Anion Layer ◽  
Charge Separation Efficiency

The separate [Bi2O2]2+ and CO32− layers can greatly improve the charge separation efficiency.

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