Synthesis and coordination Behavior of symmetrical tetraamine phosphinic acids

Abstract

Two symmetrical tetraamine phosphinic acids were newly synthesized. Their acid-base and coordination behavior was studied by potentiometry.

Structure of the Cu(II), Zn(II) and Ni(II) complexes in the solid state was determined by X-ray diffraction.

Keywords

• aminophosphinates
• complexes
• stability constants
• potentiometry