A soluble linear Schiff-base coordination polymer containing eight-coordinate zirconium(IV)

Abstract

Figure 7. ESR spectra of PVP-1: (a) UV irradiated at 298 K and measured at 77 K; (b) UV irradiated at 77 K, heated to 298 K, and measured at 77 K. polymers (PVP-2 and PVP-3) produced from electrochemical and photoelectrochemical methods had the characteristics of the polymer (PVP-1) synthesized with Ziegler-Natta catalyst. Visible-light-induced photoelectrochemical polymerization has been reported for the first time at a n-GaAs semiconductor electrode.

Synthesis and Characterization of Linear Cerium(IV) Schiff-Base Coordination Polymers

“…(NH4)2-CefNOsJe (0.8696 g, 1.587 mmol) in 15 mL of DMSO was slowly added. The reaction proceeded for 16 h at 60 °C under dry air before 0.2 g (0.5 mmol) of the end-capping H2bsp in 5 mL of DMSO and 0.0224 g (1.0 mmol) of LiOH were added, and the solution was stirred for 1 h more. The product was precipitated with 125 mL of methanol, filtered, washed with methanol, and dried in vacuo at 100 °C.…”

Highly Efficient Synthesis and Solid-State Characterization of 1,2,4,5-Tetrakis(alkyl- and arylamino)benzenes and Cyclization to Their Respective Benzobis(imidazolium) Salts

“…For example, 1,2,4,5-tetraaminobenzene 2 (1) and its oxidized derivative, 2,5-diamino-1,4-benzoquinonediimine 3 (2), have found great utility in organic, organometallic, and macromolecular chemistry. They have found potential and utility as ditopic ligands in coordination chemistry, 4 as pH-dependent chromophores, 5 as difunctional monomers in the synthesis of main-chain organometallic 6 and supramolecular polymers, 7 and as π-complexation partners in supramolecular systems. 8 While 1 9 is commercially available (as its tetrahydrochloride salt), access to its N,N′,N′′,N′′′-tetra(alkyl and aryl) derivatives remains synthetically challenging due to the high propensity of these electron-rich arenes to oxidize during isolation.…”

“…For example, 1,2,4,5-tetraaminobenzene ( 1 ) and its oxidized derivative, 2,5-diamino-1,4-benzoquinonediimine ( 2 ), have found great utility in organic, organometallic, and macromolecular chemistry. They have found potential and utility as ditopic ligands in coordination chemistry, as pH-dependent chromophores, as difunctional monomers in the synthesis of main-chain organometallic and supramolecular polymers, and as π-complexation partners in supramolecular systems …”