Front Cover: Hexanuclear Niobium Cluster Alcoholates – First Representatives with Isopropanolato Ligands (Z. Anorg. Allg. Chem. 20/2022)

A hexanuclear gold carbonyl cluster.

The hexanuclear gold carbonyl cluster [PPh4]2[Au6(CF3)6Br2(CO)2] (4) has been obtained by spontaneous self-assembly of the following independent units: CF3AuCO (1) and [PPh4][Br(AuCF3)2] (3). The cyclo-Au6 aggregate 4, in which the components are held together by unassisted, fairly strong aurophilic interactions (Au···Au ∼310 pm), exhibits a cyclohexane-like arrangement with chair conformation....

Niobium tetrahalide complexes with neutral diphosphine ligands.

The reactions of NbCl4 with diphosphine ligands o-C6H4(PMe2)2, Me2PCH2CH2PMe2 or Et2PCH2CH2PEt2 in a 1 : 2 molar ratio in MeCN solution produced eight-coordinate [NbCl4(diphosphine)2]. [NbBr4(diphosphine)2] (diphosphine = o-C6H4(PMe2)2 or Me2PCH2CH2PMe2) were made similarly from NbBr4. X-ray crystal structures show that [NbCl4{o-C6H4(PMe2)2}2] has a dodecahedral geometry, but the complexes with...

Redetermination of (acetonitrile-κN)dicarbon­yl(η5-cyclo­penta­dien­yl)iron(II) tetra­fluoridoborate

The crystal structure of the title compound, [Fe(C(5)H(5))(CH(3)CN)(CO)(2)]BF(4), of which only the coordinates of the non-H atoms of the cation have previously been reported [Fadel et al. (1979 ▶). Z. Anorg. Allg. Chem.453, 98-106] has been redetermined. The Fe(II) atom in the complex cation is coordinated by a cyclo-penta-dienyl ring, two carbonyl ligands and an acetonitrile mol-ecule display...

Proceedings Front Cover 8X10

The integrated Rule Oriented Data Management System (iRODS) is a policy-driven data management system that is starting to be used by projects with large data volume requirements that require a highly available system. In this paper we describe an approach to provide a Highly Availability load-balanced iRODS System (HAIRS). We also describe the advantages and disadvantages of the approach and fu...

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