318498-45-2Relevant academic research and scientific papers
Zinc complexes of condensed phosphates, 4 Diphosphate-zinc complexes with encapsulating tripodal coligands
Mueller-Hartmann, Alexandra,Vahrenkamp, Heinrich
, p. 2371 - 2377 (2007/10/03)
Tris(benzimidazolylmethyl)amine (TBA) and tris(pyrazolyl)borate (Tp) ligands have been used to prepare ternary zinc complexes with triorganodiphosphates (R3POP-), triorganomethylenediphosphonates (R3PCP-), and diorganodiphosphates (R2POP2-). The complex types [(TBA)Zn(R3POP)]+ and [(TBA)Zn(R3PCP)]+ have been assigned as containing trigonal-bipyramidal zinc with monodentate diphosphate ligands. By X-ray structure determination, the complex type [(TBA)Zn(R2POP)] has been found to contain the same ZnN4O coordination pattern, which has also been assigned to the dinuclear complexes [(TBA)Zn(R2POP)Zn(TBA)]2+ incorporating the diphosphates as bis-monodentate bridging ligands. The same monodentate and bis-monodentate attachment of the diphosphates, but with tetrahedral zinc in a ZnN3O environment, has been identified in the pyrazolylborate complexes TpZn(R3POP) and TpZn(R2POP)ZnTp.
