4151-77-3Relevant articles and documents
Structural identification of the factors that prevent an electronic spin-state crossover in Fe[(C6H5)B(3-Mepz)3]2 (pz = pyrazolyl ring)
Reger, Daniel L.,Elgin, J. Derek,Smith, Mark D.,Grandjean, Fernande,Rebbouh, Leila,Long, Gary J.
, p. 2616 - 2622 (2006)
The synthesis, structural, magnetic, and M?ssbauer spectral properties of Fe[(C6H5)B(3-Mepz)3]2 (2, pz = pyrazolyl ring) are reported. The single crystal X-ray structural results indicate that at both 294 and 90 K Fe[(C6H5)B(3-Mepz)3]2 (2) has a distorted octahedral iron(II) coordination environment with Fe-N bond distances that average ca. 2.18 ?, distances that clearly indicate the high-spin nature of the complex at these temperatures. Both the magnetic and M?ssbauer spectral results indicate that Fe[(C6H5)B(3-Mepz)3]2 (2) remains high-spin down to 4 K. This result is surprising because the closely related Fe[(p-R-C6H4)B(3-Mepz)3]2 [R = I, {single bond}C{triple bond, long}C{single bond}H, {single bond}C{triple bond, long}C{single bond}SiMe3, or {single bond}C{triple bond, long}C{single bond}C6H5] complexes do exhibit electronic spin-state changes on cooling. The absence of a spin-state crossover in Fe[(C6H5)B(3-Mepz)3]2 (2) is the result of its molecular structure in which the three pyrazolyl rings of each tridentate ligand are highly twisted away from an ideal C3v coordination symmetry, a twisting distortion that favors the high-spin form of the complex with longer Fe-N bond distances.
Triazole derivative containing boron-nitrogen group, polymer and preparation methods and applications of triazole derivative and polymer
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Paragraph 0052; 0061-0062, (2020/07/07)
The invention belongs to the technical field of organic photoelectricity, and discloses a triazole derivative containing a boron-nitrogen group, a polymer and preparation methods and applications of the triazole derivative and the polymer. The chemical st
Structural and spectroscopic analysis of a new family of monomeric diphosphinoboranes
Ordyszewska, Anna,Szynkiewicz, Natalia,Perzanowski, Emil,Chojnacki, Jaros?aw,Wi?niewska, Aleksandra,Grubba, Rafa?
, p. 12482 - 12495 (2019/08/26)
We present a series of amino- and aryl(diphosphino)boranes R2PB(R′′)PR′2, where R2P, R′2P = tBu2P, tBuPhP, Ph2P, Cy2P, and R′′ = iPr2N, Ph, which were obtained via the
Compounds for organic electroluminescent devices
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Page/Page column 39, (2018/08/12)
The present invention relates to boron compounds for use in electronic devices, especially organic electroluminescent devices, and to a process for preparing these compounds and to electronic devices, especially organic electroluminescent devices, comprising these compounds.
