The First Nonlayered Metal Sulfonate Structure:  a 1-D Ba<sup>2+</sup> Network Incorporating Hydrophobic Channels

Yu, Joanne O.; Côté, Adrien P.; Enright, and Gary D.; Shimizu, George K. H.

doi:10.1021/ic000733k

Cited by 56 publications

(16 citation statements)

References 18 publications

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“…1a). The Ba-O bond distances range from 2.734(3) to 3.143(3) Ǻ (see Table 2), which are comparable to those observed in other reported barium complexes [29,39]. In complex 1, ligand pdc 2-only takes one coordination modes.…”

Section: Crystal Structuresupporting

confidence: 83%

Syntheses, Structure and Properties of Barium(II) Complex with 2,3-Pyrazinedicarboxylic Acid

Yin

Li³

et al. 2012

J Chem Crystallogr

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Complex [Ba(pdc)(H 2 O)] (1), (H 2 pdc: 2,3-pyrazinedicarboxylic acid) has been synthesized and characterized by single crystal X-ray diffraction studies and FT-IR. Structural determination reveals that there is only a crystallographically independent barium(II) center. The coordination geometry of Ba1 is a distorted bicapped tetragonal antiprism. The two carboxylate groups of pdc 2-adopt l 3 -g 2 : g 2 and l 4 -g 2 : g 2 coordination modes, respectively. Whole pdc 2-acts as a l 6 -bridge to link barium(II) centers to generate 2D network. Thermal stability and luminescent properties of complex 1 are investigated.

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Section: Crystal Structuresupporting

confidence: 83%

Syntheses, Structure and Properties of Barium(II) Complex with 2,3-Pyrazinedicarboxylic Acid

Yin

Li³

et al. 2012

J Chem Crystallogr

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“…In the structure of 1, the Ba (1) (7)] from three coordinated water molecules. The coordination geometry around the Ba(1) ion can be described as a singly-capped octahedron.…”

Section: Resultsmentioning

confidence: 99%

Structure and Characterisation of a Novel 3-D Ba(II)–MOF Based on the {Ba₄O₇} Core

Zhu

Yin

et al. 2010

Journal of Chemical Research

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A novel three-dimensional barium metal-organic framework [Ba 3 (btc) 2 (H 2 O) 4 ]·0.5H 2 O (H 3 btc = 1,3,5-benzenetricarboxylic acid) has been synthesised under hydrothermal conditions, and characterised by single-crystal X-ray structure determination, thermogravimetric analysis, X-ray powder diffraction, IR, and photoluminescence studies. The volume of the tunnel formed by the two-dimensional layers is 341.9 Å 3 per unit cell using PLATON based on the crystal structures, comprising 14.3% of the crystal volume 2387.2 Å 3 . The solid-state fluorescence measurement of this compound at room temperature reveals a fluorescent emission band at 454.5 nm under the excitation of 337 nm, assigned to a charge-transfer transition.

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“…The first incorporated a “bent” pillar, 4,5‐dihydroxybenzene‐1,3‐disulfonate, and selectively sorbed H 2 S in its interlayer 8. We have also reported the structure of [Ba(2‐pyridylethanesulfonate) 2 ⋅ EtOAc] ∞ , a one‐dimensional structure which represented the first non‐layered metal sulfonate complex 9. Herein, we report the single‐crystal and powder X‐ray diffraction (PXRD) analysis of a Ba 2+ complex of a pseudo‐trigonally symmetrical, trisulfonated ligand.…”

Section: Introductionmentioning

confidence: 99%

Anion Exchange in the Channels of a Robust Alkaline Earth Sulfonate Coordination Network

Dalrymple

Shimizu

2002

Chem. Eur. J.

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Most geckos can rapidly attach and detach from almost any kind of surface. This ability is attributed to the hierarchical structure of their feet (involving toe pads, setal arrays, and spatulae), and how they are moved (articulated) to generate strong adhesion and friction forces on gripping that rapidly relax on releasing. Inspired by the gecko's bioadhesive system, various structured surfaces have been fabricated suitable for robotic applications. In this study, x–y–z asymmetric, micrometer‐sized rectangular flaps composed of polydimethylsiloxane (PDMS) were fabricated using massively parallel micro‐electromechanical systems (MEMS) techniques with the intention of creating directionally responsive, high‐to‐low frictional‐adhesion toe pads exhibiting properties similar to those found in geckos. Using a surface forces apparatus (SFA), the friction and adhesion forces of both vertical (symmetric) and angled/tilted (x–y–z asymmetric) microflaps under various loading, unloading and shearing conditIons were investigated. It was found that the anisotropic structure of tilted microflaps gives very different adhesion and tribological forces when articulated along different x–y–z directions: high friction and adhesion forces when articulated in the y–z plane along the tilt (+y) direction, which is also the direction of motion, and weak friction and adhesion forces when articulated against the tilt (–y) direction. These results demonstrate that asymmetric angled structures, as occur in geckos, are required to enable the gecko to optimize the requirements of high friction and adhesion on gripping, and low frictional‐adhesion on releasing. These properties are intimately coupled to a (also optimum) articulation mechanism. We discuss how both of these features can be simultaneously optimized in the design of robotic systems that can mimic the gecko adhesive system.

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The First Nonlayered Metal Sulfonate Structure: a 1-D Ba²⁺ Network Incorporating Hydrophobic Channels

Cited by 56 publications

References 18 publications

Syntheses, Structure and Properties of Barium(II) Complex with 2,3-Pyrazinedicarboxylic Acid

Syntheses, Structure and Properties of Barium(II) Complex with 2,3-Pyrazinedicarboxylic Acid

Structure and Characterisation of a Novel 3-D Ba(II)–MOF Based on the {Ba₄O₇} Core

Anion Exchange in the Channels of a Robust Alkaline Earth Sulfonate Coordination Network

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The First Nonlayered Metal Sulfonate Structure: a 1-D Ba2+ Network Incorporating Hydrophobic Channels

Cited by 56 publications

References 18 publications

Syntheses, Structure and Properties of Barium(II) Complex with 2,3-Pyrazinedicarboxylic Acid

Syntheses, Structure and Properties of Barium(II) Complex with 2,3-Pyrazinedicarboxylic Acid

Structure and Characterisation of a Novel 3-D Ba(II)–MOF Based on the {Ba4O7} Core

Anion Exchange in the Channels of a Robust Alkaline Earth Sulfonate Coordination Network

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The First Nonlayered Metal Sulfonate Structure: a 1-D Ba²⁺ Network Incorporating Hydrophobic Channels

Structure and Characterisation of a Novel 3-D Ba(II)–MOF Based on the {Ba₄O₇} Core