0000000001301468

AUTHOR

Tomáš Jelínek

showing 7 related works from this author

Substitution of the laser borane anti-B18H22 with pyridine: a structural and photophysical study of some unusually structured macropolyhedral boron h…

2018

Reaction of anti-B18H221 with pyridine in neutral solvents gives sparingly soluble B16H18-3',8'-Py23a as the major product (ca. 53%) and B18H20-6',9'-Py22 (ca. 15%) as the minor product, with small quantities of B18H20-8'-Py 4 (ca. 1%) also being formed. The three new compounds 2, 3a and 4 are characterized by single-crystal X-ray diffraction analyses and by multinuclear multiple-resonance NMR spectroscopy. Compound 2 is of ten-vertex nido:ten-vertex arachno two-atoms-in-common architecture, long postulated for a species with borons-only cluster constitution, but previously elusive. Compound 3a is of unprecedented ten-vertex nido:eight-vertex arachno two-atoms-in-common architecture. The si…

010405 organic chemistryQuantum yieldNuclear magnetic resonance spectroscopyBorane010402 general chemistry01 natural sciences0104 chemical sciencesInorganic Chemistrychemistry.chemical_compoundCrystallographysymbols.namesakechemistryPyridinesymbolsPicolinevan der Waals forcePhosphorescenceDerivative (chemistry)Dalton Transactions
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Thermochromic Fluorescence from B18H20(NC5H5)2: An Inorganic–Organic Composite Luminescent Compound with an Unusual Molecular Geometry

2017

BH(NCH) is a rare example of two conjoined boron hydride subclusters of nido and arachno geometrical character. At room temperature, solutions of BH(NCH) emit a 690 nm fluorescence. In the solid state, this emission is shifted to 620 nm and intensifies due to restriction of the rotation of the pyridine ligands. In addition, there is a thermochromicity to the fluorescence of BH(NCH). Cooling to 8 K engenders a further shift in the emission wavelength to 585 nm and a twofold increase in intensity. Immobilization in a polystyrene thin-film matrix results in an efficient absorption of pumping excitation energy at 414 nm and a 609 nm photostable fluorescence. Such fluorescence from polystyrene t…

ThermochromismMaterials scienceHydrideBoranes02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnologyPhotochemistry01 natural sciencesFluorescenceAtomic and Molecular Physics and Optics0104 chemical sciencesElectronic Optical and Magnetic Materialschemistry.chemical_compoundchemistryPolystyrene0210 nano-technologySpectroscopyLuminescenceAbsorption (electromagnetic radiation)
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CCDC 1441506: Experimental Crystal Structure Determination

2018

Related Article: Michael G. S. Londesborough, Jiří Dolanský, Tomáš Jelínek, John D. Kennedy, Ivana Císařová, Robert D. Kennedy, Daniel Roca-Sanjuán, Antonio Francés-Monerris, Kamil Lang, William Clegg|2018|Dalton Trans.|47|1709|doi:10.1039/C7DT03823B

Space GroupCrystallographyCrystal SystemCrystal Structure5'6':56-conjuncto-(3'8'-bis(pyridine-N)-4'5':6'7'-di-muH-arachno-octaborane)-(89:910-di-muH-nido-decaborane)Cell ParametersExperimental 3D Coordinates
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CCDC 1514165: Experimental Crystal Structure Determination

2020

Related Article: Michael G. S. Londesborough, Jiří Dolanský, Luis Cerdán, Kamil Lang, Tomáš Jelínek, Josep M. Oliva, Drahomír Hnyk, Daniel Roca-Sanjuán, Antonio Francés-Monerris, Jiří Martinčík, Martin Nikl, John D. Kennedy|2017|Adv. Opt. Mater.|5|1600694|doi:10.1002/adom.201600694

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates5'10':56-conjuncto-(6'9'-bis(pyridine-N)-7'8'-muH-nido-decaborane)-(67:89:910-tri-muH-nido-decaborane)
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CCDC 1441507: Experimental Crystal Structure Determination

2018

Related Article: Michael G. S. Londesborough, Jiří Dolanský, Tomáš Jelínek, John D. Kennedy, Ivana Císařová, Robert D. Kennedy, Daniel Roca-Sanjuán, Antonio Francés-Monerris, Kamil Lang, William Clegg|2018|Dalton Trans.|47|1709|doi:10.1039/C7DT03823B

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates5'10':56-conjuncto-(6'9'-bis(pyridine-N)-7'8'-muH-nido-decaborane)-(67:89:910-tri-muH-nido-decaborane)
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CCDC 1441504: Experimental Crystal Structure Determination

2018

Related Article: Michael G. S. Londesborough, Jiří Dolanský, Tomáš Jelínek, John D. Kennedy, Ivana Císařová, Robert D. Kennedy, Daniel Roca-Sanjuán, Antonio Francés-Monerris, Kamil Lang, William Clegg|2018|Dalton Trans.|47|1709|doi:10.1039/C7DT03823B

Space GroupCrystallography5'6':56-conjuncto-(3'8'-bis(4-methylpyridine-N)-4'5':6'7'-di-muH-arachno-octaborane)-(89:910-di-muH-nido-decaborane)Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1441505: Experimental Crystal Structure Determination

2018

Related Article: Michael G. S. Londesborough, Jiří Dolanský, Tomáš Jelínek, John D. Kennedy, Ivana Císařová, Robert D. Kennedy, Daniel Roca-Sanjuán, Antonio Francés-Monerris, Kamil Lang, William Clegg|2018|Dalton Trans.|47|1709|doi:10.1039/C7DT03823B

5'6':56-conjuncto-(10'-(pyridine-N)-6'7':8'9'-di-muH-nido-decaborane)-(67:89:910-tri-muH-nido-decaborane)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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