Functional porous coordination polymers.
26 Apr 2004-Angewandte Chemie (ANGEWANTE CHEMIE. (INTERNATIONAL EDITION IN ENGLISH)-Vol. 43, Iss: 18, pp 2334-2375
TL;DR: The aim is to present the state of the art chemistry and physics of and in the micropores of porous coordination polymers, and the next generation of porous functions based on dynamic crystal transformations caused by guest molecules or physical stimuli.
Abstract: The chemistry of the coordination polymers has in recent years advanced extensively, affording various architectures, which are constructed from a variety of molecular building blocks with different interactions between them. The next challenge is the chemical and physical functionalization of these architectures, through the porous properties of the frameworks. This review concentrates on three aspects of coordination polymers: 1). the use of crystal engineering to construct porous frameworks from connectors and linkers ("nanospace engineering"), 2). characterizing and cataloging the porous properties by functions for storage, exchange, separation, etc., and 3). the next generation of porous functions based on dynamic crystal transformations caused by guest molecules or physical stimuli. Our aim is to present the state of the art chemistry and physics of and in the micropores of porous coordination polymers.
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TL;DR: This critical review starts with a brief introduction to gas separation and purification based on selective adsorption, followed by a review of gas selective adsorbents in rigid and flexible MOFs, and primary relationships between adsorptive properties and framework features are analyzed.
Abstract: Adsorptive separation is very important in industry. Generally, the process uses porous solid materials such as zeolites, activated carbons, or silica gels as adsorbents. With an ever increasing need for a more efficient, energy-saving, and environmentally benign procedure for gas separation, adsorbents with tailored structures and tunable surface properties must be found. Metal–organic frameworks (MOFs), constructed by metal-containing nodes connected by organic bridges, are such a new type of porous materials. They are promising candidates as adsorbents for gas separations due to their large surface areas, adjustable pore sizes and controllable properties, as well as acceptable thermal stability. This critical review starts with a brief introduction to gas separation and purification based on selective adsorption, followed by a review of gas selective adsorption in rigid and flexible MOFs. Based on possible mechanisms, selective adsorptions observed in MOFs are classified, and primary relationships between adsorption properties and framework features are analyzed. As a specific example of tailor-made MOFs, mesh-adjustable molecular sieves are emphasized and the underlying working mechanism elucidated. In addition to the experimental aspect, theoretical investigations from adsorption equilibrium to diffusion dynamics via molecular simulations are also briefly reviewed. Furthermore, gas separations in MOFs, including the molecular sieving effect, kinetic separation, the quantum sieving effect for H2/D2 separation, and MOF-based membranes are also summarized (227 references).
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TL;DR: Kenji Sumida, David L. Rogow, Jarad A. Mason, Thomas M. McDonald, Eric D. Bloch, Zoey R. Herm, Tae-Hyun Bae, Jeffrey R. Long
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TL;DR: The state-of-the-art on hybrid porous solids, their advantages, their new routes of synthesis, the structural concepts useful for their 'design', aiming at reaching very large pores are presented.
Abstract: This critical review will be of interest to the experts in porous solids (including catalysis), but also solid state chemists and physicists. It presents the state-of-the-art on hybrid porous solids, their advantages, their new routes of synthesis, the structural concepts useful for their ‘design’, aiming at reaching very large pores. Their dynamic properties and the possibility of predicting their structure are described. The large tunability of the pore size leads to unprecedented properties and applications. They concern adsorption of species, storage and delivery and the physical properties of the dense phases. (323 references)
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TL;DR: This paper presents a meta-analyses of the chiral stationary phase transition of Na6(CO3)(SO4)2, Na2SO4, and Na2CO3 of the Na2O/Na2O 2 mixture at the stationary phase and shows clear patterns in the response of these two materials to each other.
Abstract: Jenny Schneider,*,† Masaya Matsuoka,‡ Masato Takeuchi,‡ Jinlong Zhang, Yu Horiuchi,‡ Masakazu Anpo,‡ and Detlef W. Bahnemann*,† †Institut fur Technische Chemie, Leibniz Universitaẗ Hannover, Callinstrasse 3, D-30167 Hannover, Germany ‡Faculty of Engineering, Osaka Prefecture University, 1 Gakuen-cho, Sakai Osaka 599-8531, Japan Key Lab for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, China
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01 Oct 1981
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01 Jan 1977
TL;DR: In a storage room of the University of Minnesota, there used to be (and probably still are) four large isosceles triangular mirrors, with edges proportional to 2 : y/3 : y3, relics of an abandoned film project as mentioned in this paper.
Abstract: In a storage room of the University of Minnesota, there used to be (and probably still are) four large isosceles triangular mirrors, with edges proportional to 2 : y/3 : y3 , relics of an abandoned film project. If they were put together as faces of an 'isosceles' tetrahedron (with some device to prevent the sloping mirrors from sagging under their own weight), and if you could look in through a hole in one of the edges, you would see a remarkable array of images. For this tetragonal disphenoid is one of the three kinds of tetrahedron that can serve as a fundamental region for a reflection group [Coxeter 1973, p. 84; Shubnikov and Koptsik 1974, p. 201]. It (or the group) is denoted by a 'Dynkin symbol'
717 citations
TL;DR: One outcome of this mutual interaction between structure analysis and the older sciences has been the appearance of various monographs, and, to a lesser extent, the adoption of a new 'slant' in the treatment of old subjects in less specialized works.
Abstract: SINCE the first studies of crystal structures were made by the Braggs in 1913, there has been an ever-increasing flow of structure analyses carried out, first by the X-ray method alone, and later in addition by other techniques. For some time, while investigators-largely physicists-were exploring the possibilities of the new science and establishing the sound basis of technique without which the achievements of later times would not have been possible, the choice of substances for study was, from the point of view of the chemist, mineralogist or metallurgist, with notable exceptions, determined largely by fortuitous circumstances. In the years immediately preceding the Second World War, however, a growing majority of structural investigations were clearly undertaken, if not as integral parts of chemical or other researches, at least with the aim of extending knowledge of specific chemical topics rather than as ends in themselves ; while, equally important, a large proportion of chemists had learnt to appreciate the significance of structure analysis and were influenced by its results in their attitude to teaching and research. One outcome of this mutual interaction between structure analysis and the older sciences has been the appearance of various monographs, and, to a lesser extent, the adoption of a new 'slant' in the treatment of old subjects in less specialized works; but it was probably true to say that no text-book of inorganic chemistry showed a complete assimilation of the results and implications of the new subject. Structural Inorganic Chemistry By Dr. A. F. Wells. Pp. viii + 590. (Oxford: Clarendon Press; London: Oxford University Press, 1945.) 25s. net.
373 citations
"Functional porous coordination poly..." refers background in this paper
...{[Zn(nicotinate)2]·MeOH·2H2O}n is the first example of a 3D coordination polymer that possesses a 4(2)·8(4) topology([139]) based solely upon square-planar nodes....
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