metal-organic compounds
The title mononickeladodecaborane cluster, [NiB11H6(OC3H7)5(H2O)2], has been synthesized by the reaction of dichlorobis(triphenylphosphine)nickel(II) with triethylammonium nido-undecaborane(14) in 2-propanol. The NiIV atom is connected to five atoms of the boron cage to form a closo 12-vertex {NiB11} icosahedral skeleton. All of the H atoms on the five B cage atoms connected to the Ni atom are substituted by isopropoxy groups. The NiIV atom is also bonded to two water molecules. The molecules form dimers through intermolecular hydrogen-bond interactions.
metal-organic compounds
The title cluster, [Ru(C7H11B10ClN2O6)(C2H3N)(C18H15P)] or [1,2-{3,5-(NO2)2(C6H3)COO}-1-(PPh3)-1-(CH3CN)-3-Cl-1-RuB10H8], has an iso-closo 11-vertex RuB10 core geometry with the metal occupying the unique six-connected apical position, giving the characteristic 11-vertex iso-closo [MB10] metalloborane 1:2:4:2:2 stack. The ruthenium centre has three exo-polyhedral ligands: one triphenylphosphine, one acetonitrile and one 3,5-dinitrobenzoate, which is coordinated through Ru—O and B—O bonds, resulting in an exocyclic five-membered Ru/O/C/O/B ring.
organic compounds
In the title compound, C10H11NO5, all bond lengths and angles show normal values. Weak intermolecular O—HO hydrogen bonds form centrosymmetric dimers, which are further linked by π–π interactions into ladders extending along the a axis.