Part 11
Crystal Structure of a Lantern-type Dirhodium(II) Complex with Axial Pyridine Molecules cis-[Rh2(4-Me-pf )2(O2CCMe3)2(py)2], 4-Me-pf− = N,N′-Di-p-tolylformamidinate Anion
2021 年 37 巻 p. 69-71
詳細
2021 年 37 巻 p. 69-71
The title compound of a lantern-type rhodium(II) dinuclear complex, cis-[Rh2II(4-Me-pf )2(O2CCMe3)2(py)2] (4-Me-pf− = N,N′-di-p-tolylformamidinate anion; py = pyridine), was isolated and the crystal structure was determined by the single-crystal X-ray diffraction method at 150 K. It crystallizes in the monoclinc space group P21/c with a = 17.4169(2)Å, b = 12.7032(2)Å, c = 21.4293(3)Å, β = 92.311(1)°, V = 4737.38(11)Å3, Dx = 1.420 g/cm3, and Z = 4. The R1 [I > 2σ(I)] and wR2 (all data) values are 0.0245 and 0.0664, respectively, for all 7864 independent reflections. Two RhII atoms are bridged by two 4-Me-pf− and two pivalato ligands in the cis-(2:2) fashion. The axial sites of the dinuclear core are occupied by py ligands with distances of Rh-Nax = 2.2816(18) and 2.3458(19)Å. The Rh–Rh distance is 2.4630(2)Å, of which value is in the range of those for the other lantern-type dirhodium complexes with formamidinato ligands.
