1992
DOI: 10.1007/bf00864538
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Phosphorus-containing podands. 9. Synthesis of oligoethylene glycol bis(diphenylphosphinylethyl) esters and their complexing properties with respect to alkali metal cations in a low-polarity solvent

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Cited by 10 publications
(8 citation statements)
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“…Complexation Data. Complexation data (stability constants) for podands, [46][47][48][49][50][51][52][53][54][55][56] crown ethers, 7 (Chart 1) and β-cyclodextrin 57 were critically selected from the THECO-MAC database, 3 which can export data into SDF format.…”
Section: Methodsmentioning
confidence: 99%
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“…Complexation Data. Complexation data (stability constants) for podands, [46][47][48][49][50][51][52][53][54][55][56] crown ethers, 7 (Chart 1) and β-cyclodextrin 57 were critically selected from the THECO-MAC database, 3 which can export data into SDF format.…”
Section: Methodsmentioning
confidence: 99%
“…They possess a remarkable binding affinity for alkali cations, which varies as a function of the nature of constitutive fragments. A set of 84 stability constants (log β) for the 1:1 complexes of podands and with K + in the mixed solvent THF:CHCl 3 (4:1 volume) at 298 K [46][47][48][49][50][51][52][53][54][55][56] has been selected from the THECOMAC database. 3,7 The learning set excluding rare fragments, contained 70 or 71 podands depending on the decomposition scheme, while the validation set contained 5 podands.…”
Section: Modeling Of Complexation and Extraction Properties 321 Compl...mentioning
confidence: 99%
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“…10 Podands can be easily modified by varying substituents at phosphorus, in particular, the 'bridges' between ether oxygens and P᎐ ᎐ O groups. More than 50 phosphoryl-containing mono-podands and their complexes with alkali, alkaline-earth and rare-earth cations have been synthesized [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29] and studied by conductometry, 30,31 calorimetry, 32-34 extraction 35 and IR spectroscopy [36][37][38] methods. Compared to macrocyclic ionophores (crown ethers, cryptands), mono-podands are not preorganized.…”
Section: Introductionmentioning
confidence: 99%