Reversible Capture of Small Molecules On Bimetallaborane Clusters: Synthesis, Structural Characterization, and Photophysical Aspects

0364411 - ÚACH 2012 RIV US eng J - Článek v odborném periodiku
Bould, Jonathan - Baše, Tomáš - Londesborough, Michael Geoffrey Stephen - Oro, L.A. - Macias, R. - Kennedy, J.D. - Kubát, Pavel - Fuciman, M. - Polívka, T. - Lang, Kamil
Reversible Capture of Small Molecules On Bimetallaborane Clusters: Synthesis, Structural Characterization, and Photophysical Aspects.
Inorganic Chemistry. Roč. 50, č. 16 (2011), s. 7511-7523. ISSN 0020-1669. E-ISSN 1520-510X
Grant CEP: GA AV ČR(CZ) KAN400480701; GA ČR GAP208/10/1678; GA ČR(CZ) GAP207/11/1577
Výzkumný záměr: CEZ:AV0Z40320502; CEZ:AV0Z40400503
Klíčová slova: metallaborane reaction chemistry * metal-metal bonds * sulfur-dioxide * singlet oxygen * photochemical elimination
Kód oboru RIV: CA - Anorganická chemie
Impakt faktor: 4.601, rok: 2011

Metallaborane compounds containing two adjacent metal atoms, [(PMe(2)Ph)(4)MM'B(10)H(10)] (where MM' = Pt(2)., 1; PtPd, 7; Pd(2), 8), have been synthesized, and their propensity to sequester O(2), CO, and SO(2) and to then release them under pulsed and continuous irradiation are described. Only [(PMe(2)Ph)(4)Pt(2)B(10)H(10)], 1, undergoes reversible binding of O(2) to form [(PMe(2)Ph)(4)(O(2))Pt(2)B(10)H(10)] 3, but solutions of 1, 7, and 8 all quantitatively take up CO across their metal-metal vectors to form [(PMe(2)Ph)(4)(CO)Pt(2)B(10)H(10)] 4, [(PMe(2)Ph)(4)(CO)PtPdB(10)H(10)] 10, and [(PMe(2)Ph)(4)(CO)Pd(2)B(10)H(10)] 11, respectively. Crystallographically determined interatomic M-M distances and infrared CO stretching frequencies show that the CO molecule is bound progressively more weakly in the sequence {PtPt} > {PtPd} > {PdPd}.
Trvalý link: http://hdl.handle.net/11104/0006553