2008
Coordination compounds of lanthanides with polydentate phosphine oxide ligands
SPÍCHAL, Zdeněk a Marek NEČASZákladní údaje
Originální název
Coordination compounds of lanthanides with polydentate phosphine oxide ligands
Název česky
Koordinační sloučeniny lanthanoidů s vícefunkčními fosforanovými ligandy
Název anglicky
Coordination compounds of lanthanides with polydentate phosphine oxide ligands
Autoři
SPÍCHAL, Zdeněk (203 Česká republika) a Marek NEČAS (203 Česká republika, garant)
Vydání
Bratislava, SK, VII. SEMINÁR Pokroky v anorganickej chémii, od s. 72-73, 2 s. 2008
Nakladatel
Univerzita Komenského v Bratislave
Další údaje
Jazyk
čeština
Typ výsledku
Stať ve sborníku
Obor
10402 Inorganic and nuclear chemistry
Stát vydavatele
Slovensko
Utajení
není předmětem státního či obchodního tajemství
Kód RIV
RIV/00216224:14310/08:00024829
Organizační jednotka
Přírodovědecká fakulta
ISBN
978-80-223-2523-3
Klíčová slova anglicky
lanthanides; coordination polymers; structure
Štítky
Příznaky
Mezinárodní význam
Změněno: 7. 5. 2009 14:28, doc. Mgr. Marek Nečas, Ph.D.
V originále
Current research on coordination chemistry is largely aimed at metal-organic frameworks (MOFs). These compounds consist of inorganic centers (transition metal atoms, lanthanides) and organic ligands and have regular one-, two- or three-dimensional structures. Such arrangements may lead to desired properties such as high thermal stability, luminescence (Eu, Tb compounds), porosity or ability to selectively catalyze reactions. Our research if focused on coordination compounds of lanthanides with bidentate and polydentate phosphine oxide ligands. Lanthanides are used as hydrated salts (nitrates and chlorides), and the most frequently used ligands are diphosphine dioxides of a Ph2P(O)-X-P(O)Ph2 general formula in which X = (CH2)n, (C5H4)2Fe, (C6H4)2O, etc. The structures of resulting coordination compounds depend on the lanthanide cation, additional anions in the coordination sphere of the cation, the length of the ligand and its flexibility. Flexible ligands adopt both chelating and bridging coordination modes, while rigid ligands act only as bridging and are more likely to form polymeric structures. We have prepared a number of chelates and 1D and 2D polymers, and discussed the relationships beween reactants and product structures. Therefore, we can now do some structural predictions regarding future syntheses.
Anglicky
Current research on coordination chemistry is largely aimed at metal-organic frameworks (MOFs). These compounds consist of inorganic centers (transition metal atoms, lanthanides) and organic ligands and have regular one-, two- or three-dimensional structures. Such arrangements may lead to desired properties such as high thermal stability, luminescence (Eu, Tb compounds), porosity or ability to selectively catalyze reactions. Our research if focused on coordination compounds of lanthanides with bidentate and polydentate phosphine oxide ligands. Lanthanides are used as hydrated salts (nitrates and chlorides), and the most frequently used ligands are diphosphine dioxides of a Ph2P(O)-X-P(O)Ph2 general formula in which X = (CH2)n, (C5H4)2Fe, (C6H4)2O, etc. The structures of resulting coordination compounds depend on the lanthanide cation, additional anions in the coordination sphere of the cation, the length of the ligand and its flexibility. Flexible ligands adopt both chelating and bridging coordination modes, while rigid ligands act only as bridging and are more likely to form polymeric structures. We have prepared a number of chelates and 1D and 2D polymers, and discussed the relationships beween reactants and product structures. Therefore, we can now do some structural predictions regarding future syntheses.
Návaznosti
| GA203/08/1111, projekt VaV |
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