Synthesis and Crystal Structure of a Chain Complex of Rhodium(II) Acetate and 1,2-Bis(4-pyridyl)ethane having an N₂-Adsorption Property

Abstract

The title compound, a chain adduct of rhodium(II) acetate with 1,2-bis(4-pyridyl)ethane (bpe), catena(tetrakis(μ-acetao-O,O′)(μ-1,2-bis(4-pyridyl)ethane-N,N′)dirhodium(II)-water (1/2)), [Rh₂(CH₃CO₂)₄(bpe)]_n·2nH₂O, was isolated. The crystal structure was determined by the single-crystal X-ray diffraction method at 293 K. It crystallizes in the monoclinic space group C2/c with a = 24.937(5)Å, b = 13.211(3)Å, c = 8.8480(19)Å, β = 94.189(3)°, V = 2907.0(11)ų, D_x = 1.513 g/cm³, and Z = 4. The R1 [I > 2σ(I)] and wR2 (all data) values are 0.0356 and 0.0863, respectively, for all 3324 independent reflections. The molecule has a linear chain with an alternating arrangement of Rh₂(CH₃CO₂)₄ [Rh-Rh 2.3990(8)Å] and bpe. The specific surface area estimated from a N₂ adsorption isotherm was 65.6 m² g^-1.