Molecular and polymeric Hg(II) complexes with a PTA (1,3,5-triaza-7-phosphaadamantane) complex of the [Re-6(mu(3)-Se)(8)](2+) core-containing cluster as ligand

作者：Tu Xiaoyan; Truong Huong; Nichol Gary S; Zheng Zhiping^*

来源：Inorganica Chimica Acta, 2010, 363(15): 4189-4196.

DOI：10.1016/j.ica.2010.06.063

• Metal cluster
• Supramolecular chemistry
• X-ray crystal structure
• Mercury complexes

Two Hg(II) complexes with the cluster-complex ligand [Re-6(mu(3)-Se)(8)(PEt3)(5)(PTA)](SbF6)(2) (PTA = 1,3,5-triaza-7-phosphaadamantane), {[Re-6(mu(3)-Se)(8)(PEt3)(5)(PTA)(Hg3I7)](SbF6)}(n)center dot(CH3CN)(n) (1) and {[Re-6(mu(3)-Se)(8) (PEt3)(5)(PTA)](2)(Hg4I9)}(SbF6)(3)center dot 2CH(3)CN (2), were prepared and structurally characterized. The two compounds were obtained from reactions conducted at different temperatures under otherwise identical conditions. Recrystallization of the room-temperature product 2 in a different solvent mixture produced yet another new Hg(II) complex, {[Re-6(mu(3)-Se)(8)(PEt3)(5)(PTA)](Hg3I8)}center dot CH3CN (3) which may be considered as a consequence of the dissociation of the kinetic product 2 in solution and the re-assembly of necessary components to generate the new compound upon crystallization. The solid-state structure of 1 contains polymeric cluster columns, in which the PTA ligand adopts a hitherto unknown coordination mode with simultaneous coordination of all four (one P and three N atoms) potentially coordinating atoms.

• 出版日期2010-12-10