Coordination compounds of electron-deficient boron cluster anions B n H n 2− (n = 6, 10, 12)

Solid‐State Reactions of Eicosaborate [B20H18]2− Salts and Complexes

“…[34,35] Complexes of silver(I), copper(I), and lead(II) with boron cluster anions are the most studied in the literature. [34,35] Complexes of silver(I), copper(I), and lead(II) with boron cluster anions are the most studied in the literature.…”

Reactivity of boron cluster anions [B10H10]2−, [B10Cl10]2− and [B12H12]2− in cobalt(II)/cobalt(III) complexation with 1,10-phenanthroline

“….H-C dihydrogen bonds might influence the geometry of [Co(phen) 3 ] 2+ cation, and, particularly that of the CoN 6 coordination polyhedron. In 1 the decahydro-closo-decaborate dianion is surrounded by seven [Co(phen) 3 It should be noted that preparation of compounds with supposed structure 1Á2H 2 O and 2ÁH 2 O was reported previously [7a] from the same [HNEt 3 ] 2 [B n H n ] (n = 10, 12) salts, but it was carried out by laborious-intensive way through preparation of the corresponding closo-borate acids using cation-exchange column and the following cobalt(II) closo-borates [Co(H 2 O) 6 ][B n H n ]ÁxH 2 O. Addition of ethanol solution of threefold excess of phen to a water solution of the latter cobalt salt afforded immediate precipitation of 1Á2H 2 O or 2ÁH 2 O.…”

“…Yellow crystalline precipitate 4 was isolated from the obtained yellow reaction mixture, was filtered off, washed with acetonitrile (2 Â 5 ml) and dried in air (yield is about 95%). Single crystal of 4Á7.5H 2 O suitable for X-ray diffraction was obtained by recrystallization of 4 from CH 3 (1 mmol) in 10 ml of acetonitrile. A solution of phen (2 mmol) in 10 ml of acetonitrile was added to the obtained green reaction mixture, resulting in a yellow precipitate 1 which was filtered off, washed with acetonitrile (2 Â 10 ml), and dried in air.…”

“…They tend to participate in numerous reactions of substitution of exo-polyhedral hydrogens to a wide set of functional groups without decomposition of the boron cage [2]. Besides, the boron cluster anions form numerous polymeric or mononuclear complexes with such metals as Pb, Cu, Ag, Au, Zn, Cd, Hg, etc [3]. Although these are compounds with electron-deficient bonds [4], they can form in addition to coordination bonds a wide set of specific B-H. .…”

Iron(II) Complexes with Boron Cluster Anion [B10Cl10]2–: Intermolecular Interactions according to35Cl NQR Spectroscopy and X‐ray Diffraction

“…Higher boron hydride clusters [1] represent stable aromatic structures, which are capable of participating in a wide variety of chemical reactions (complexation, [2] substitution of terminal H atoms [3] ) without destroying the boron polyhedral skeleton. They form macromolecules of various architectural shapes, which are of interest for supramolecular chemistry and crystal engineering.…”