The Experts below are selected from a list of 368715 Experts worldwide ranked by ideXlab platform
Leonard R Macgillivray - One of the best experts on this subject based on the ideXlab platform.
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Single Crystal to Single Crystal 2 2 photodimerization involving b n coordination with generation of a thiophene host
Organometallics, 2020Co-Authors: Gonzalo Campilloalvarado, Zhiting Feng, Kristin M Hutchins, Dale C Swenson, Herbert Hopfl, Hugo Moralesrojas, Leonard R MacgillivrayAbstract:We report on B←N coordination to support a Single-Crystal-to-Single-Crystal reaction in the solid state. A [2 + 2] photodimerization is achieved with face-to-face π-stacks of monotopic B←N adducts ...
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structural flexibility of halogen bonds showed in a Single Crystal to Single Crystal 2 2 photodimerization
IUCrJ, 2018Co-Authors: Michael A Sinnwell, Jared N Blad, Logan R Thomas, Leonard R MacgillivrayAbstract:Halogen bonds have emerged as noncovalent forces that govern the assembly of molecules in organic solids with a degree of reliability akin to hydrogen bonds. Although the structure-directing roles of halogen bonds are often compared to hydrogen bonds, general knowledge concerning the fundamental structural behavior of halogen bonds has had limited opportunity to develop. Following an investigation of solid-state reactions involving organic syntheses and the development of photoresponsive materials, this work demonstrates the ability of the components of intermolecular N⋯I halogen bonding - a 'workhorse' interaction for the Crystal engineer - to support a Single-Crystal-to-Single-Crystal [2+2] photodimerization. A comparison is provided of the geometric changes experienced by the halogen-bonded components in the Single-Crystal reaction to the current Crystal landscape of N⋯I halogen bonds, as derived from the Cambridge Structural Database. Specifically, a linear-to-bent type of deformation of the halogen-bonded components was observed, which is expected to support the development of functional halogen-bonded materials containing molecules that can undergo movements in close-packed Crystal environments.
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Single Crystal to Single Crystal direct cross linking and photopolymerisation of a discrete ag i complex to give a 1d polycyclobutane coordination polymer
Chemical Communications, 2013Co-Authors: Saikat Dutta, Dejankresimir Bucar, Elizabeth Elacqua, Leonard R MacgillivrayAbstract:A discrete dinuclear Ag(I) complex undergoes a Single-Crystal-to-Single-Crystal transformation to generate a 1D coordination polymer with a polycyclobutane backbone.
Alastair J Florence - One of the best experts on this subject based on the ideXlab platform.
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reversible two step Single Crystal to Single Crystal phase transitions between desloratadine forms i ii and iii
Crystal Growth & Design, 2020Co-Authors: Vijay Srirambhatla, Daniel M Dawson, Sarah L Price, Alastair J FlorenceAbstract:Single-Crystal to Single-Crystal polymorphic transformations in molecular solids are relatively rare, with changes in Crystal structure more commonly leading to destruction of the parent Crystal. However, the structural basis for such transitions is of considerable interest given the changes in material properties that can result. The antihistamine desloratadine displays a two-step, reversible Single-Crystal to Single-Crystal phase transition during heating/cooling cycles between three conformational polymorphs: the low temperature form I, a polytypic intermediate form II, and the high temperature form III. The two-step transition involves a sequential flipping of the piperidine rings of desloratadine molecules in the Crystals, which induce reversible micrometer-scale contraction on heating and expansion on cooling of the largest face of a desloratadine Single Crystal. Distinct, slow-moving phase boundaries, originating on the (001) face of the Crystal, were observed sweeping through the entire Crystal in...
Parimal K Bharadwaj - One of the best experts on this subject based on the ideXlab platform.
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versatile tailoring of paddle wheel znii metal organic frameworks through Single Crystal to Single Crystal transformations
Chemistry: A European Journal, 2015Co-Authors: Subhadip Neogi, Parimal K BharadwajAbstract:A new tetracarboxylate ligand having short and long arms formed 2D layer ZnII coordination polymer 1 with paddle-wheel secondary building units under solvothermal conditions. The framework undergoes solvent-specific Single Crystal-to-Single Crystal (SC-SC) transmetalation to produce 1Cu. With a sterically encumbered dipyridyl linker, the same ligand forms non-interpenetrated, 3D, pillared-layer ZnII metal–organic framework (MOF) 2, which takes part in SC-SC linker-exchange reactions to produce three daughter frameworks. The parent MOF 2 shows preferential incorporation of the longest linker in competitive linker-exchange experiments. All the 3D MOFs undergo complete SC-SC transmetalation with CuII, whereby metal exchange in different solvents and monitoring of X-ray structures revealed that bulky solvated metal ions lead to ordering of the shortest linker in the framework, which confirms that the solvated metal ions enter through the pores along the linker axis.
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solvent induced Single Crystal to Single Crystal structural transformation and concomitant transmetalation in a 3d cationic zn ii framework
Chemical Communications, 2015Co-Authors: Susan Sen, Subhadip Neogi, Kari Rissanen, Parimal K BharadwajAbstract:A 3D cationic Zn(II) framework, based on Zn2(CO2)4 paddle-wheel secondary building units (SBUs) and Zn16(CO2)32 polyhedral supramolecular building blocks (SBBs), has been synthesized. At room temperature, the framework undergoes guest solvent triggered reversible structural transformation and concomitant Zn(II) to Cu(II) transmetalation in a Single-Crystal to Single-Crystal fashion.
Gonzalo Campilloalvarado - One of the best experts on this subject based on the ideXlab platform.
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Single Crystal to Single Crystal 2 2 photodimerization involving b n coordination with generation of a thiophene host
Organometallics, 2020Co-Authors: Gonzalo Campilloalvarado, Zhiting Feng, Kristin M Hutchins, Dale C Swenson, Herbert Hopfl, Hugo Moralesrojas, Leonard R MacgillivrayAbstract:We report on B←N coordination to support a Single-Crystal-to-Single-Crystal reaction in the solid state. A [2 + 2] photodimerization is achieved with face-to-face π-stacks of monotopic B←N adducts ...
Paul E Barclay - One of the best experts on this subject based on the ideXlab platform.
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Single Crystal diamond low dissipation cavity optomechanics
Optica, 2016Co-Authors: Matthew Mitchell, Behzad Khanaliloo, David P Lake, Tamiko Masuda, J P Hadden, Paul E BarclayAbstract:Single-Crystal diamond cavity optomechanical devices are a promising example of a hybrid quantum system: by coupling mechanical resonances to both light and electron spins, they can enable new ways for photons to control solid-state qubits. However, realizing cavity optomechanical devices from high-quality diamond chips has been an outstanding challenge. Here, we demonstrate Single-Crystal diamond cavity optomechanical devices that can enable photon–phonon spin coupling. Cavity optomechanical coupling to 2 GHz frequency (
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Single Crystal diamond nanobeam waveguide optomechanics
Physical Review X, 2015Co-Authors: Behzad Khanaliloo, David P Lake, Paul E Barclay, Harishankar Jayakumar, Aaron C Hryciw, Hamidreza KavianiAbstract:Optomechanics, which refers to the interplay of light and nanomechanics, has widespread applications in sensing and quantum optics. Researchers demonstrate that an optomechanical system based on Single-Crystal diamond nanobeams can undergo large self-oscillations.
