[Pd(NH3)(4)](2)Mo8O26 (I) and Na-2[Pd(NH3)(4)](2)Mo8O27 center dot 5H(2)O (II) are synthesized and their crystal structures are determined. In the structure of I, isolated octamolybdate anions have a beta-configuration; Mo atoms are bonded to 14 (6x2 + 2x1) terminal O atoms, the distances to which are in a range of 1.693-1.733 angstrom. The Mo-O distances with bridging O atoms connecting two Mo atoms range within 1.755-2.228 angstrom; with those connecting three Mo atoms it is 1.927-2.390 angstrom; and with those connecting five Mo atoms, it is 2.143-2.501 angstrom. The mutual arrangement of octamolybdate anions can be described in terms of a three-layer close packing: a(T) approximate to 9.5 angstrom, alpha(T) approximate to 69.8 degrees. In the structure of II, octamolybdate anions form infinite chains ([Mo8O27](6-))(infinity). The Mo atoms are bonded to 16 (4x2 + 2x1 + 2x2.5) terminal O atoms, the distances to which are in a range of 1.705-1.901 angstrom. Some terminal O atoms are involved in the additional coordination of Na+ cations, as a result of which, a complex 3D structure forms. The Mo-O distances with bridging O atoms connecting two Mo atoms range within 1.755-2.367 angstrom; with those connecting three Mo atoms it is 1.868-2.218 angstrom; with those connecting four Mo atoms it is 1.957-2.365 angstrom. The anions form pseudohexagonal layers (a approximate to c approximate to 9.2 angstrom, O-Propargylation of Hydroxylamines via Ni/Chiral Sodium Carboxylate Dual Catalytic System