A supramolecular assembly of chiral l/d-[Cd(Cl)(H2O)(phen)2]+ and l,l/d,d-dinuclear Cd complex coordinated by phen and {V16O38(Cl)} cluster

The compound H3[l/d-Cd(Cl)(H2O)(phen)2][{l/d-Cd(H2O)(phen)2}2{V16O38 (Cl)}] · 3.5H2O (1) was synthesized via hydrothermal techniques from the starting materials of V2O5, CdCl2, phen, H2C2O4 · 2H2O, CH3COONa and H2O. The compound crystallizes in the space group P21/c of the monoclinic system with a = 12.6315 (2) Å, b = 27.2451 (5) Å, c = 27.3999 (6) Å, α = 90 °, β = 92.3870 (10)°, γ = 90°, V = 9421.4 (3) Å3, Z = 4. In the 3-D structure of 1, a novel supramolecular assembly of enantiomers l/d-[Cd(Cl)(H2O)(phen)2]+ and l,l/d,d-dinuclear Cd complex coordinated by phen groups and V16O38(Cl) cluster is formed via strong intermolecular H-bonding and π ⋯ π stacking interactions with chiral chains of [{l/d-Cd(H2O)(phen)2}2{V16O38 (Cl)}]4−, racemic layers and channels. The channels contain enantiomers l/d-[Cd(Cl)(H2O)(phen)2]+ in pairs. The multiple supramolecular interactions strengthen the stability of compound 1.