Abstract
Reaction of [Ru 2(O 2CMe) 4]Cl with K 3[Cr(CN) 5NO] in water forms H x [Ru II/III 2(O 2CMe) 4] 3− x -[Cr(CN) 5NO]· zH 2O ( x = 0.2) that magnetically orders at 4.0 K and possesses an interpenetrating body centered cubic [ a = 13.2509(2) Å] structure with random locations of the bridging nitrosyl ligands, and x/3 vacant cation sites. Similarly, the aqueous reaction of [Ru 2(O 2CMe) 4]Cl with Na 2[Fe(CN) 5NO] forms paramagnetic [Ru 2(O 2CMe) 4] 2[Fe(CN) 5NO]·H 2O, which has a similar tetragonal interpenetrating structure [ a = 13.0186(1) Å, c = 13.0699(2) Å] where the NO ligands are presumably nonbridging and 1/3 of the expected cation sites are unoccupied. The presence of uncoordinated NO sites in addition to missing neighboring [Ru 2(O 2CMe) 4] + units, results in significant vacancies (or holes) in the lattice.
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