Coordination compounds of lanthanides with polydentate phosphine oxide ligands

SPÍCHAL, Zdeněk a Marek NEČAS. Coordination compounds of lanthanides with polydentate phosphine oxide ligands. In VII. SEMINÁR Pokroky v anorganickej chémii. Bratislava, SK: Univerzita Komenského v Bratislave, 2008, s. 72-73. ISBN 978-80-223-2523-3.

Základní 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

• Originální 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: Coordination polymers, Lanthanides, structure
• Příznaky: Mezinárodní význam

Anotace

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.

Anotace 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: Název: Syntéza a vlastnosti anorganicko-organických polymerních materiálů

Investor: Grantová agentura ČR, Syntéza a vlastnosti anorganicko-organických polymerních materiálů