INCLUSION-COMPOUNDS OF NAI WITH 13-MEMBERED AZOCROWN AND AZOXYCROWN ETHERS

Sodium iodide complexes of 13-membered azo-(I) and azoxycrown ethers ( II) have been synthesized. Compound I [Na(L1trans)(2)]. I . H2O is tri clinic with a = 11.53(2), b = 15.74(2), c = 19.17(2) Angstrom, alpha = 98.93(9), beta = 105.51(9), gamma = 89.20(9) deg.; Z = 4, space group P (1) over bar. Compound II [Na(L2)(2)]. I is orthorhombic with a = 1 2.451(2), b = 13.796(3), c = 18.667(4) Angstrom; Z = 4, space group P2 (1)2(1)2(1). In both complexes the cation is coordinated to chain oxyg en atoms and to one nitrogen atom of the azo or azoxy unit. The abilit y of both ligands to form complexes in relation to the geometry of the azo or azoxy subunit of the macrocycle is discussed.