phosphate ligands
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2021 ◽  
pp. 138641
Author(s):  
Puchakayala Rajani ◽  
Gopinadhanpillai Gopakumar ◽  
Sivaraman Nagarajan ◽  
Cherukuri Venkata Siva Brahmmananda Rao

2021 ◽  
Author(s):  
Suren J. Nemat ◽  
Loren Deblock ◽  
Dietger Van den Eynden ◽  
Michael Heilmann ◽  
Jesper Köster ◽  
...  

<div>We designed and synthesized two resorcin[4]arene scaffolds with four phosphoric acid binding groups. The ligands effectively bind in at least a tridentate fashion. The superior binding affinity is demonstrated using solution NMR spectroscopy and exceeds that of phosphonic acids.</div>


2021 ◽  
Author(s):  
Suren J. Nemat ◽  
Loren Deblock ◽  
Dietger Van den Eynden ◽  
Michael Heilmann ◽  
Jesper Köster ◽  
...  

<div>We designed and synthesized two resorcin[4]arene scaffolds with four phosphoric acid binding groups. The ligands effectively bind in at least a tridentate fashion. The superior binding affinity is demonstrated using solution NMR spectroscopy and exceeds that of phosphonic acids.</div>


2021 ◽  
Author(s):  
Suren J. Nemat ◽  
Dietger Van den Eynden ◽  
Loren Deblock ◽  
Michael Heilmann ◽  
Jesper M. Köster ◽  
...  

We synthesized two resorcin[4]arene scaffolds with four phosphate binding groups. The superior binding affinity to nanocrystal surfaces is demonstrated using solution NMR spectroscopy and exceeds that of single phosphonates.


2020 ◽  
Vol 44 (18) ◽  
pp. 7270-7276 ◽  
Author(s):  
Guo Peng ◽  
Yue Chen ◽  
Bo Li

Four one-dimensional lanthanide coordination polymers constructed from Ln2 dimers showing single molecule magnet behavior and photoluminescence are reported.


2019 ◽  
Vol 75 (12) ◽  
pp. 1892-1896 ◽  
Author(s):  
Alexey E. Kalugin ◽  
Konstantin A. Lyssenko ◽  
Mikhail E. Minyaev ◽  
Dmitrii M. Roitershtein ◽  
Lada N. Puntus ◽  
...  

The mononuclear title complex, [Eu(C24H34O4P)3(CH4O)5]·CH4O, (1), has been obtained as a minor product in the reaction between EuCl3(H2O)6 and lithium bis(2,6-diisopropylphenyl) phosphate in a 1:3 molar ratio in a methanol medium. Its structure exhibits monoclinic (P21/c) symmetry at 120 K and is isostructural with the La, Ce and Nd analogs reported previously [Minyaev et al. (2018a). Acta Cryst. C74, 590–598]. In (1), all three bis(2,6-diisopropylphenyl) phosphate ligands display the terminal κ1 O-coordination mode. All of the hydroxy H atoms are involved in O—H...O hydrogen bonding, exhibiting four intramolecular and two intermolecular hydrogen bonds. Photophysical studies have demonstrated luminescence of (1) with a low quantum yield.


2018 ◽  
Vol 74 (5) ◽  
pp. 590-598 ◽  
Author(s):  
Mikhail E. Minyaev ◽  
Alexander N. Tavtorkin ◽  
Sof'ya A. Korchagina ◽  
Galina N. Bondarenko ◽  
Andrei V. Churakov ◽  
...  

Crystals of mononuclear tris[bis(2,6-diisopropylphenyl) phosphato-κO]pentakis(methanol-κO)lanthanide methanol monosolvates of lanthanum, [La(C24H34O4P)3(CH3OH)5]·CH3OH, (1), cerium, [Ce(C24H34O4P)3(CH3OH)5]·CH3OH, (2), and neodymium, [Nd(C24H34O4P)3(CH3OH)5]·CH3OH, (3), have been obtained by reactions between LnCl3(H2O) n (n = 6 or 7) and lithium bis(2,6-diisopropylphenyl) phosphate in a 1:3 molar ratio in methanol media. Compounds (1)–(3) crystallize in the monoclinic P21/c space group and have isomorphous crystal structures. All three bis(2,6-diisopropylphenyl) phosphate ligands display a κO-monodentate coordination mode. The coordination number of the metal atom is 8. Each [Ln{O2P(O-2,6-iPr2C6H3)2}3(CH3OH)5] molecular unit exhibits four intramolecular O—H...O hydrogen bonds, forming six-membered rings. The unit forms two intermolecular O—H...O hydrogen bonds with one noncoordinating methanol molecule. All six hydroxy H atoms are involved in hydrogen bonding within the [Ln{O2P(O-2,6-iPr2C6H3)2}3(CH3OH)5]·CH3OH unit. This, along with the high steric hindrance induced by the three bulky diaryl phosphate ligands, prevents the formation of a hydrogen-bond network. Complexes (1)–(3) exhibit disorder of two of the isopropyl groups of the phosphate ligands. The cerium compound (2) demonstrates an essential catalytic inhibition in the thermal decomposition of polydimethylsiloxane in air at 573 K. Catalytic systems based on the neodymium complex tris[bis(2,6-diisopropylphenyl) phosphato-κO]neodymium, (3′), which was obtained as a dry powder of (3) upon removal of methanol, display a high catalytic activity in isoprene and butadiene polymerization.


2018 ◽  
Vol 56 (12) ◽  
pp. 1289-1296 ◽  
Author(s):  
Yixin Ren ◽  
Ruvanthi N. Kularatne ◽  
Justin T. Miller ◽  
Stefanie T. Polderman ◽  
Trinh D. Vo ◽  
...  

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