Rhenium-Based Molecular Rectangles as Frameworks for Ligand-Centered Mixed Valency and Optical Electron Transfer
摘要:
A series of six neutral, tetrametallic, molecular rectangles has been synthesized that have the form ([Re(CO)(3)](2)BiBzlm)2-mu,mu'-(LL)(2), where BiBzlm is 2,2'-bisbenzimidazolate and LL is a reducible, dipyridyl or diazine ligand. X-ray crystallographic studies of the six show that the rectangle frameworks, as defined by the metal atoms, range in size from 5.7 Angstrom x 7.2 Angstrom to 5.7 Angstrom x 19.8 Angstrom. The singly reduced rectangles are members of an unusual category of mixed-valence compounds in which the ligands themselves are the redox centers and interligand electronic communication is controlled by direct ligand orbital overlap rather than by superexchange through the metal ions. Despite nominally identical coordination-defined ligand positioning, the spectrally determined electronic strengths, H-ab(2), vary by roughly 100-fold. As shown by X-ray crystallography and computational modeling, the observed differences largely reflect detailed geometric configurational differences that can either facilitate or frustrate productive direct orbital overlap.
An organic photoelectric device includes a first electrode and a second electrode facing each other, and an active layer between the first electrode and the second electrode, wherein the active layer includes an n-type semiconductor compound that is transparent in a visible ray region and represented by Chemical Formula 1, and a p-type semiconductor compound having a maximum absorption wavelength in a wavelength region of about 500 nm to about 600 nm of a visible ray region.
Crystal Engineering Approach To Design Colorimetric Indicator Array To Discriminate Positional Isomers of Aromatic Organic Molecules
作者:Darshak R. Trivedi、Yuzo Fujiki、Norifumi Fujita、Seiji Shinkai、Kazuki Sada
DOI:10.1002/asia.200800341
日期:2009.2.2
Discriminating by color: A 2D colorimetricindicatorarray has been designed by a crystalengineeringapproach (N⋅⋅⋅HO hydrogen bonding and charge‐transfer complexation) involving solid‐state co‐grinding for the visual discrimination of positionalisomers of dihydroxynaphthalene. Factors governing the close packing of π planes, and hence color of the complex, were determined by single‐crystal X‐ray analysis, allowing
[EN] METAL-ORGANIC MATERIALS (MOMS) FOR ADSORPTION OF POLARIZABLE GASES AND METHODS OF USING MOMS<br/>[FR] MATÉRIAUX ORGANOMÉTALLIQUES (MOM) POUR L'ADSORPTION DE GAZ POLARISABLES ET LEURS PROCÉDÉS D'UTILISATION
申请人:UNIV SOUTH FLORIDA
公开号:WO2014074378A1
公开(公告)日:2014-05-15
Embodiments of the present disclosure provide for multi-component metal- organic materials (MOMs), systems including the MOM, systems for separating components in a gas, methods of separating polarizable gases from a gas mixture, and the like.
METAL COMPLEX AND ADSORBENT MATERIAL, STORAGE MATERIAL, AND SEPARATING MATERIAL COMPRISING SAME
申请人:Kuraray Co., Ltd.
公开号:EP2746248A1
公开(公告)日:2014-06-25
The problem of providing a metal complex having excellent gas adsorption performance, gas storage performance, and gas separation performance is solved by a metal complex comprising a dicarboxylic acid compound (I) including 20 to 99 mole % of a dicarboxylic acid compound (I-1) selected from terephthalic acid derivatives having an electron-donating group in the 2nd position such as 2-methoxyterephthalic acid, 2-methylterephthalic acid, and terephthalic acid, and 80 to 1 mole % of a dicarboxylic acid compound (I-2) selected from terephthalic acid derivatives having an electron-withdrawing group in the 2nd position such as 2-nitroterephthalic acid, 2-fluoroterephthalic acid, 2-chloroterephthalic acid, 2-bromoterephthalic acid, and 2-iodoterephthalic acid; at least one kind of metal ion selected from metal ions belonging to Group 2 and Groups 7 to 12 of the periodic table; and an organic ligand capable of bidentate binding to the metal ion.
METAL COMPLEX, AND ABSORBENT, OCCLUSION MATERIAL AND SEPARATION MATERIAL PRODUCED THEREFROM
申请人:Kuraray Co., Ltd.
公开号:EP2868649A1
公开(公告)日:2015-05-06
The metal complex comprises a multivalent carboxylic acid compound, at least one metal ion selected from ions of metals belonging to Groups 2 to 13 of the periodic table, an organic ligand capable of multidentate binding to the metal ion, and a C1 or C2 monocarboxylic acid compound. The metal complex has excellent gas adsorption, storage, and separation performance as well as excellent durability. The metal complex is stably present under high temperature and high humidity, and can maintain high adsorption performance.