The title compound, C40H47FN2O5, crystallizes with two independent but similar mol-ecules in the asymmetric unit. In the crystal, mol-ecules are linked into chains along [100] by inter-molecular N-H⋯O hydrogen bonds.
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http://dx.doi.org/10.1107/S160053681302624X | DOI Listing |
Dalton Trans
December 2024
Department of Inorganic Chemistry, Faculty of Chemistry and Advanced Materials Center, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland.
The reactivity of the phosphinoborenium cation supported by a 1,3,4,5-tetramethylimidazolin-2-ylidene ligand toward small molecules was explored. The phosphinoborenium cation exhibited dual Lewis acid-base properties due to the presence of the Lewis acidic boron center and the Lewis basic phosphido ligand connected by a covalent bond. The reaction of the title cation with CO led to the insertion of a CO molecule into the P-B bond.
View Article and Find Full Text PDFJ Org Chem
December 2024
Department of Engineering Science, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan.
The title compound was synthesized, and ESR and magnetic analysis revealed diamagnetic properties below 400 K. The crystal structure analysis clarified that the molecule possesses an approximate symmetry with a head-to-tail (N-O) four-membered ring. The N···O distances are 2.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
August 2024
Department of Chemistry, M.M.A.M.C (Tribhuvan University) Biratnagar, Nepal.
The dinuclear mol-ecule of the title compound, [Mo(CH)(CO)] or [Mo( BuCp)(CO)] where Bu and Cp are -butyl and cyclo-penta-dienyl, is centrosymmetric and is characterized by an Mo-Mo bond length of 3.2323 (3) Å. Imposed by inversion symmetry, the BuCp and the carbonyl ligands are in a arrangement to each other.
View Article and Find Full Text PDFIUCrdata
June 2024
Department of Chemistry Marquette University, P O Box 1881 Milwaukee WI 53201-1881 USA.
The title compound, CHOSi, has triclinic () symmetry at 100 K. The O atom of the epoxide group has a pseudoaxial orientation and the dihedral angle between the cyclo-hexyl and benzene rings is 85.80 (8)°.
View Article and Find Full Text PDFChemphyschem
September 2024
Institute of Organic Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224, Warsaw, Poland.
Color polymorphism combined with crystal packing-dependent luminescence properties of polymorphs reflects differences in intermolecular interactions in different molecular arrangements. The title compound has two polymorphic crystal structures having strikingly different absorption and luminescence spectra that result from different packing motifs in the crystal lattice. The polymorph with brick wall-like packing of molecules is white and shows very weak violet fluorescence whereas the second polymorph, where molecules are arranged in columnar stacks, is bright yellow and displays intense green fluorescence with maximum at 487 nm (20530 cm).
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