Crystal Structure of the Tetranuclear Copper(II) Cluster Compound [Cu4OCl6 (BBIm)4] (BBIm = 3-benzyl-benzimidazole)

Adamantane-type clusters: compounds with a ubiquitous architecture but a wide variety of compositions and unexpected materials properties

“…They were isolated after an addition of simple CuCl x to L in the presence of ambient air, hydroxide or CuO. 385–436 In some of those cases, the oxygen source could not be determined and is most likely a H 2 O or O 2 impurity in the reaction, or stems from decomposition of the solvent. A deviating synthetic strategy uses oligomeric [LCuCl] x complexes already containing the desired ligand, which rearrange to the desired product.…”

“…[µ4-O(Cu{1-(1-Isoquinolyl)benzotriazole})4Cl6] (722) CuCl2•2H2O, 1-(1-Isoquinolyl)benzotriazole / MeOH, CHCl3, 1 dayC[411] [µ4-O{Cu(3-mesitylpyrazole)}4Cl6] (723) CuCl2•2H2O, 3-mesitylpyrazole, NaOH / MeOH, 18 h C[412] [µ4-O{Cu(3-benzyl-benzimidazole)}4Cl6] (724) CuSO4•5H2O, Benzimidazole, benzlychloride / Py, 120 °C, 36 h B[413] [µ4-O{Cu(2-ethyltetrazole)}4Cl6] (725) CuCl2•2H2O, 2-ethyltetrazole / MeOH, 1 h C [414] [µ4-O{Cu(1-Methylbenzotriazole)}4Cl6] (726) CuCl2•2H2O, 1-Methylbenzotriazole, CuO / MeOH, 65 °C, 1 h C [415][µ4-O{Cu(pyridine N-oxide)}4Cl6] (727) CuCl2•2H2O, pyridine N-oxide / MeOH, 45 min C [416] [µ4-O{Cu(2-Methylimidazole)}4Cl6] (728) CuCl2•2H2O, 2-Methylimidazole / MeOH, 45 min C [416] [µ4-O(Cu{OP(NH t Bu)3})4Cl6] (729) CuCl2•2H2O, OP(NH t Bu)3 / hexane, 80 °C, 38 h C [417] [µ4-O{Cu(3,5-dimethylpyrazole)}4Cl6] (730) CuCl2•2H2O, acetylacetone, benzohydrazide / EtOH, 8 h C [418,419] [µ4-O{Cu(1,4-dioxane)}4Cl6] (731) CuCl2•2H2O, 1,4-dioxane, benzoylhydrazine / MeOH, CH2Cl2, 30 min C [420] [µ4-O{Cu(1-ethyl-5-nitro-1,2,3-triazole)}4Cl6] (732) CuCl2•2H2O, 1-ethyl-5-nitro-1,2,3-triazole / EtOH, 78 °C, 1 h C [421] [µ4-O{Cu(3-hydroxyethylpyridine)}4Cl6] (733) CuCl2•2H2O, 3-hydroxyethylpyridine / MeOH C [422] [µ4-O{Cu(Quinuclidine)}4Cl6] (734) CuCl, Quinuclidine, air / MeCN, 82 °C, 30 min C [423] [µ4-O(Cu{1-(pyridin-2-ylmethyl)-1H-benzimidazole})4Cl6] (735) CuCl2•6H2O, 1-(pyridin-2-ylmethyl)-1H-benzimidazole, air / MeCN, H2O…”