Synthesis of Cu(II)-Organophosphonate Framework with Predefined Void Spaces

Abstract

Here we report the first utilization of the novel methane tetra-p-phenylphosphonic acid (MTPPA) ligand for the preparation of metal complexes with Cu­(II). The hydrothermal and solvothermal reactions of tetratopic MTPPA as a bridging ligand in conjunction with the square pyramidal {Cu­(terpy)}2+ and {Cu2(pbterpy)}4+, (where terpy = 2,2′:6′,2″-Terpyridine and pbterpy = 4′,4″″-(1,4-Phenylene)­bis­(2,2′:6′,2″-terpyridine)) as prefixed corner building units have produced one-dimensional [{Cu­(terpy)}2(MTPPA-H5) (MTPPA-H6)]·(4.25H2O)­(H3O) (1) and two-dimensional [{Cu2(pbterpy)}­MTPPA-H4] (2), respectively. The structures were characterized by single crystal X-ray diffraction and TGA.

Synthesis, characterisation, nuclease and cytotoxic activity of phosphate-free and phosphate-containing copper $$4^{\prime }$$ 4 ′ -(N-methylpyridinium)- $$2{,}2^{\prime }{:}6^{\prime }{,}2^{\prime \prime }$$ 2 , 2 ′ : 6 ′ , 2 ″ terpyridine complexes

“…The Cu(1)-O(5) bond (1.895(2) Å) is slightly shorter than the apical Cu(1)-O(1) bond (2.147(2) Å) due to the Jahn-Teller distortion. Thus, the Cu-N and Cu-O distances are comparable with the distances reported for similar type of complexes 43. The bond angles subtended by the terpyridyl unit in the equatorial plane N(2)-Cu(1)-N(1) 79.20(10) • , N(2)-Cu(1)-N(3) 79 46…”

“…[36][37][38][39][40][41] The use of pytpy as an ancillary ligand in metal phosphates and phosphonates was limited until recently when terpyridine was used as an auxillary ligand along with a bisphosphonate for the rational synthesis of phosphonate containing bimetallic wave structure. 42,43 In our laboratory, we have shown that di-tertbutyl phosphate, [(tBuO) 2 P(O)(OH)] (dtbpH) on reaction with copper precursors leads to the formation of monomeric, dimeric as well as polymeric copper phosphate complexes. 44 These compounds were utilized as single source precursors for the facile synthesis of fine particle ceramics.…”

A potential Cu/V-organophosphonate platform for tailored void spacesviaterpyridine mold casting

“…Tetrakis(4-bromophenyl)methane (Bulut, Zorlu, Kirpi et al, 2015) and methane tetra-p-phenylphosphonic acid (MTPPAÁMeOH; Schü trumpf et al, 2015) were synthesized according to previously reported procedures.…”

The crystal structure of the triclinic polymorph of 1,4-bis([2,2′:6′,2′′-terpyridin]-4′-yl)benzene

“…1,4-Di([2,2 0 :6 0 ,2 00 -terpyridin]-4 0 -yl)benzene has been used as a ligand in the formation of mononuclear complexes (Santoni et al, 2013;Laramé e-Milette & Hanan, 2017), binuclear complexes (Santoni et al, 2013;Schmittel et al,2006;Maekawa et al, 2004), tetranuclear complexes (Schmittel et al, 2005), one-dimensional coordination polymers (Koo et al, 2003), two-dimensional coordination polymers (Bulut et al, 2015;Jones et al (2010), and numerous metallo-supramolecular polymers (without reported crystal structures), see for example: Vaduvescu & Potvin, 2004;Nishimori et al, 2007;Han et al, 2008;Schwarz et al, 2010;Ding et al, 2012;Muronoi et al, 2013;Szczerba et al, 2014;Munzert et al, 2016;Meded et al, 2017;Bera et al, 2018. A search of the Cambridge Structural Database (CSD, Version 5.40, update August 2019; Groom et al, 2016) for the ISSN 2056-9890 title compound yielded only nine hits (see supporting information), which included the report on the structure of the orthorhombic polymorph, Form II, by Fernandes et al (2010).…”