The Number and Shape of Lattice Solvent Molecules Controls Spin-Crossover in an Isomorphous Series of Crystalline Solvate Salts

Crystals of [FeL2][BF4]2·nMeCN (L = N-(2,6-di{pyrazol-1-yl}pyrid-4-yl)acetamide; n = 1 or 2) and [FeL2][ClO4]2·MeCN are isomorphous. When n = 1 the compounds exhibit an abrupt, hysteretic spin-transition below 200 K, but...

Molekülstruktur von {[P(C6H5)3]2RhOH}2· 2 C6H6 / The Molecular Structure of {[P(C6H5)3]2RhOH}2· 2 C6H6

The dinuclear Rhodium(I) complex Bis(μ-hydroxo)bis(bistriphenylphosphane-rhodium) forms during the HRh(PPh3)2 catalyzed hydrogenation of Schiff bases by isopropanol. It can be isolated from benzene solution as a crystalline solvate of composition {[P(C6H5)3]2RhOH}2·2 C6H6 (1). The complex contains a four-membered ring with bridging hydroxo groups. Crystals of 1 are triclinic, space group P1̄ with a = 12.570(3), b = 12.850(4), c = 13.982(3) Å, α = 116.23(3), β = 115.08(3), γ = 90.89(3)°, and Z = 1.