Iminoboranes

A Novel Coordination Mode of 7‐Methyl‐7‐sila‐ nido ‐undecaborate(1−)

“…[1] The use of supramolecular structures has proved to be one of the best approaches to in the range between a typical single (B À N: 1.58 ) and a double (BN: 1.41 ) bond. [19] The new metallasilaborates presented obey Wades rules. [20] Experimental Section …”

New Boron-Nitrogen Analogues of Uracil Derivatives [1]

“…A l though the physical properties of many boron-nitrogen and isosteric organic compounds, e.g ., borazine, ( -B H -N H -)3, and benzene, are very similar, the chemical behaviour is usually greatly influenced by the differences in the polarities of the isosteric units. On the other hand, the chemical properties of an organic species may be altered to a small extent only by the selective incorporation of a single BN unit into an organic fram ew ork, as has been documented for im inoboranes of the type R B = N R ' and acetylenes [3]. Nevertheless, the physiological and phar macological properties of such isoelectronic species may still differ considerably.…”

Cyclobutadien-homologe Diazadiboretidine als Liganden von Übergangsmetallen / Cyclobutadiene-Homologous Diazadiboretidines as Ligands to Transition Metals

“…Wie diese bilden jene //-Komplexe mit Übergangsmetallen M und zwar vom Typ (OC) 4 M[(RBNR ') 2 ] (M = Cr,W) [1][2][3]. Wir berichten hier über die Darstellung und Struktur weiterer Komplexe der Diazadiboretidine, und zwar mit den Metallen Co, Fe, Cr, Mo und W.…”