metal-organic compounds
The title compound (1), 1-[(-Cl)2Li(TMEDA)]-2,2',4,4'-(SiMe3)4-5,5',6,6'-[(-H)4Ho(TMEDA)(-Cl)2Li(TMEDA)]-1,1'-commo-Ho(2,4-C2B4H4)2.C10H8 (where TMEDA is tetramethylethylenediamine, bis[-22HB5,HB6: 3(2,3,4,5,6-)-2,4-bis(trimethylsilyl)-2,4-dicarba-nido-hexaborate(6)]tetra--chloro-1:24Cl;3:44Cl-tris(N,N,N',N' -tetramethyl-1,2-ethanediamine)-12N,N';22N,N';42N,N'-1,4- dilithium-2,3-diholmium naphthalene solvate, crystallizes in the triclinic space group P. The cluster consists of a HoIII `carbons apart' carborane bent-sandwich complex bridging almost symmetrically to an exo-polyhedral Li(TMEDA) unit via two Cl atoms and, via two B-H(terminal) groups of each opposing C2B3 face, to an exo-polyhedral HoIII(TMEDA) unit that is also linked to another exo-polyhedral Li(TMEDA) group with two Ho-Cl-Li bridges. The centrally located Ho atom is almost symmetrically bonded to two opposing `carbons apart' C2B4 carborane cages with Ho1Cnt1 2.340, Ho1Cnt2 2.349Å, Cnt1Ho1Cnt2 130.2, Cnt1Ho1Cl1 107.1, Cnt1Ho1Cl2 107.1, Cnt2Ho1Cl1 109.1, and Cnt2Ho1Cl2 109.1°, where Cnt is the centroid of the C2B3 face of each.
Supporting information
Crystallographic Information File (CIF) | |
Structure factor file (CIF format) |
CCDC reference: 126267