Hydrothermal Synthesis, Crystal Structure and Properties of a Novel Phosphorus-containing 3D Metal- Organic Cd(II) Coordination Polymer

Abstract

A metal-organic framework [Cd(dppip)] n (1) based on 5-(diphenylphosphino)isophthalic acid (H 2 dppip) has been synthesized hydrothermally and characterized by IR spectroscopy, elemental analysis, and X-ray crystallography.[Cd(dppip)] n shows a sheet structure owing to carboxylate bridging with windows with dimensions 10.692 × 9.325Å 2 . The layers are further connected through P-Cd interactions to give a three-dimensional supramolecular network. The thermal analysis (DTA) of complex 1 exhibited an exceptionally high thermal stability (m. p. 452.8 • C). The compound shows fluorescence at ca. 418 nm upon excitation at 314 nm.

Studies on oligomeric metal complexes derived from 2,5-bis((1H-1,2,4-triazol-3-yl)carbamoyl)terephthalic acid

“…On the other hand, the use of auxiliary N-containing ligands is also an effective method for the framework formation of polymer-metal complexes owing to the fact that they can satisfy and even mediate the coordination needs of the metal center and consequently generate more meaningful architectures. [22,23] Patel and his co-workers have reported the studies on various polymer/oligomer-metal complexes. [24][25][26][27] A more detailed exploration has been undertaken by us in the study of polymer/oligomer-metal complexes.…”