Author
Robin D. Rogers
Other affiliations: Durham University, University of New Hampshire, Northern Illinois University ...read more
Bio: Robin D. Rogers is an academic researcher from University of Alabama. The author has contributed to research in topics: Aqueous solution & Polyethylene glycol. The author has an hindex of 37, co-authored 137 publications receiving 5805 citations. Previous affiliations of Robin D. Rogers include Durham University & University of New Hampshire.
Papers
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TL;DR: The partitioning of simple substituted-benzene derivatives between water and the room temperature ionic liquid, butylmethylimidazolium hexafluorophosphate, is based on the solutes' charged state or relative hydrophobicity as discussed by the authors.
2,058 citations
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TL;DR: In this paper, the design of predictable multichromophoric supramolecular arrays of freebase and metallo porphyrins constitutes an essential first step toward the synthesis of light-harvesting complexes.
Abstract: The design of predictable multichromophoric supramolecular arrays of freebase and metallo porphyrins constitutes an essential first step toward the synthesis of light-harvesting complexes. We now report crystal engineering strategies to achieve the synthesis of controllable and predictable porphyrinic multichromophores in the solid state. The coordination complexes of metal halides, MX2 (M = Cd, Hg, Pb; X = Br, I), with freebase tetrapyridylporphyrin (TPyP) form either 1D, [(HgX2)2TPyP]·2TCE, 1, or 2D, [(MX2)TPyP]·4TCE, (M = Pb, 2; Cd, 3) polymeric networks. The porphyrin cavities in these crystalline networks can be selectively populated with various metal cations to generate ordered multiporphyrinic supramolecular arrays without distorting the coordination networks, either by (a) crystallizing the metal halides and TPyP in the presence of suitable metal salts or by (b) reacting metal halides with a mixture of freebase and metallo porphyrins in specific stoichiometric ratios. A design limit has been reac...
216 citations
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TL;DR: In this paper, the authors discuss the three major types of partitioning: (1) those rare instances that the metal ion species present in a given solution partitions to the PEG-rich phase without an extractant.
162 citations
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151 citations
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TL;DR: Several liquid-phase extraction technologies employing environmentally benign phase- or micelle-forming polymers in aqueous solution have the potential to replace volatile organic compounds in classical solvent extraction technologies.
Abstract: Several liquid-phase extraction technologies employing environmentally benign phase- or micelle-forming polymers in aqueous solution have the potential to replace volatile organic compounds in classical solvent extraction technologies. The examples reviewed here include aqueous biphasic systems, cloud-point extraction, micellar extraction, and thermoseparating polymer systems. The apparent similarities of these systems, their phase-separating properties, and their ability to solubilize a wide variety of solutes ranging from metal ions, organic compounds, and biologicals are discussed. Some comparative data from the literature whereby the solvating power of these systems may be compared to traditional solvents are presented along with new data on the polarity of the phases in typical aqueous biphasic systems. The need for additional comparative data in this area and the need to demonstrate the validity of the approach in operational processes are emphasized. A “toolbox” approach to implementing environment...
135 citations
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TL;DR: There are indications that switching from a normal organic solvent to an ionic liquid can lead to novel and unusual chemical reactivity, which opens up a wide field for future investigations into this new class of solvents in catalytic applications.
Abstract: Ionic liquids are salts that are liquid at low temperature (<100 degrees C) which represent a new class of solvents with nonmolecular, ionic character. Even though the first representative has been known since 1914, ionic liquids have only been investigated as solvents for transition metal catalysis in the past ten years. Publications to date show that replacing an organic solvent by an ionic liquid can lead to remarkable improvements in well-known processes. Ionic liquids form biphasic systems with many organic product mixtures. This gives rise to the possibility of a multiphase reaction procedure with easy isolation and recovery of homogeneous catalysts. In addition, ionic liquids have practically no vapor pressure which facilitates product separation by distillation. There are also indications that switching from a normal organic solvent to an ionic liquid can lead to novel and unusual chemical reactivity. This opens up a wide field for future investigations into this new class of solvents in catalytic applications.
5,387 citations
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TL;DR: A series of hydrophilic and hydrophobic 1-alkyl-3-methylimidazolium room temperature ionic liquids (RTILs) have been prepared and characterized to determine how water content, density, viscosity, surface tension, melting point, and thermal stability are affected by changes in alkyl chain length and anion.
3,469 citations
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TL;DR: A review of the synthesis, structure, and properties of metal-organic frameworks (MOFs) is presented in this paper, highlighting the important advances in their research over the past decade.
2,485 citations
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Imperial College London1, RWTH Aachen University2, Cranfield University3, Loughborough University4, University of Sheffield5, Massachusetts Institute of Technology6, United States Department of Energy7, Newcastle University8, Commonwealth Scientific and Industrial Research Organisation9, University of California, Berkeley10, University of Cambridge11, Carnegie Mellon University12, École Polytechnique Fédérale de Lausanne13, University of Melbourne14, Colorado School of Mines15
TL;DR: In this article, the authors review the current state-of-the-art of CO2 capture, transport, utilisation and storage from a multi-scale perspective, moving from the global to molecular scales.
Abstract: Carbon capture and storage (CCS) is broadly recognised as having the potential to play a key role in meeting climate change targets, delivering low carbon heat and power, decarbonising industry and, more recently, its ability to facilitate the net removal of CO2 from the atmosphere. However, despite this broad consensus and its technical maturity, CCS has not yet been deployed on a scale commensurate with the ambitions articulated a decade ago. Thus, in this paper we review the current state-of-the-art of CO2 capture, transport, utilisation and storage from a multi-scale perspective, moving from the global to molecular scales. In light of the COP21 commitments to limit warming to less than 2 °C, we extend the remit of this study to include the key negative emissions technologies (NETs) of bioenergy with CCS (BECCS), and direct air capture (DAC). Cognisant of the non-technical barriers to deploying CCS, we reflect on recent experience from the UK's CCS commercialisation programme and consider the commercial and political barriers to the large-scale deployment of CCS. In all areas, we focus on identifying and clearly articulating the key research challenges that could usefully be addressed in the coming decade.
2,088 citations
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TL;DR: The use of crystal engineering concepts has produced a variety of coordination networks, many of which exhibit novel and fascinating types of entanglements of individual motifs as mentioned in this paper, and the structures of a number of entangled polymeric networks reported in these years by many groups.
1,881 citations