Synthesis and Structures of Copper and Thallium(I) Coordination Compounds [Cu2[B10H10]]n and Tl2[B10H10] with the closo-Decaborate Anion

Abstract

Solvent-free copper(I) and thallium(I) compounds of the general formula [M2[B10H10]] have been synthesized. The compounds have been identified by IR spectroscopy and X-ray diffraction. According to X-ray diffraction data, the structures of both compounds are three-dimensional frameworks. In copper(I) complex [Cu2[B10H10]]n, the formation of three-center M–H–B bonds is observed. In thallium(I) compound Tl2[B10H10], the bond between cations and anions is ionic, which is confirmed by IR spectroscopy data. The Hirschfeld surface analysis of the boron cluster anion was performed for both compounds to identify and analyze intramolecular interactions.

Physicochemical Fundamentals of the Synthesis of a Cu@BN Composite Consisting of Nanosized Copper Enclosed in a Boron Nitride Matrix

“…Commercially available hydrazine hydrate (N 2 H 4 •H 2 O, 80% aqueous solution) and ammonium hydroxide solution (NH 4 OH, 28.0-30.0% NH 3 basis) were purchased from Merck KGaA, Darmstadt, Germany and used without additional purification. {Cu 2 [B 10 H 10 ]} n was synthesized according to the procedure reported [44]. Black powders of samples I 900 and II 900 were obtained by the annealing of compounds I•nH 2 O and II•nH 2 O in a quartz tube-reactor heated by a resistance furnace and sealed with a ground joint.…”