Chiral configurations in cyclophosphazene chemistry

Design, Synthesis, and Characterization of Polyphosphazene Bearing Stable Nitroxide Radicals as Cathode-Active Materials in Li-Ion Batteries

“…The most attractive properties of the phosphazenes are the stability of the inorganic chain for the oxidation, reduction, photochemical, or thermal bond cleavage provided by the appropriate selection of the side groups attached to phosphorus atom . These properties and the synthetic versatility, i.e., ease of preparation via nucleophilic replacement reactions with alkoxides, aryloxides, amines, or combination of different organic or organometallic reagents, make polyphosphazenes as unique alternatives for a wide range of technological applications . According to best of our knowledge, there is no publication regarding the work on the nitroxide radical carrying polyphosphazenes which fulfills all the requirements of a polymer backbone which have not been succeeded up to now with the PTMA or the other nitroxide group carrying polymers.…”

Synthesis and spectroscopic properties of (N/O) mono- and dispirocyclotriphosphazene derivatives with benzyl pendant arms: study of biological activity

“…The IR, APIES-MS, and microanalytical data of the products (7)(8)(9)(10)(11)(12)(13)(14)(15)(16) are tabulated in Table 8.…”

“…In addition, the Cl replacement reactions of trimer with one equimolar difunctional reagent may predominantly yield monospiro products when compared to other expected ansa-and bino-isomers [7,8]. Moreover, when two equimolar difunctional agents are used, dispirocyclotriphosphazenes with cis-and trans-geometrical and meso/racemic optical isomers can occur [9][10][11]. It is difficult to separate these isomers from each other; hence, very few optical and geometrical isomers of dispiro derivatives have been separated in the literature [9][10][11][12][13].…”

Phosphorus-nitrogen compounds (Part 51): the relationship betweenspectroscopic and crystallographic data of mono- and di-spirocyclophosphazenederivatives with 4-fluoro/nitrophenylmethyl pendant arm/arms

“…The chlorophosphazenes, N 3 P 3 Cl 6 and N 4 P 4 Cl 8 , can undergo regio and stereoselective reactions, as well [7]. In recent years, cyclotri and cyclotetraphosphazenes have started to attract much attention due to their potential stereogenic properties, and biological activities such as antibacterial, antifungal and anti-cancer activities [8][9][10][11][12]. Our group has spent many years on designating and synthesizing novel partly substituted cyclotri and cyclotetraphosphazene derivatives with bidentate ligands {dibenzo-diaza-crown ethers [13][14][15][16][17], dibenzo N 2 O n (n =2-4) [18][19][20][21] and benzo NO [22][23][24][25][26][27][28] donor * Correspondence: sbilge@science.ankara.edu.tr type aminopodands, mono-and bis-ferrocenyldiamines [29][30][31][32][33][34][35][36][37], sodium (ferrocenylmethylamino)-1-alkoxide [38][39][40][41][42][43]}and multidentate N 2 O 2 -donor type dibenzo aminopodands [44][45][46].…”