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Neodymium cluster

Tetranuclear lanthanide clusters of general formula R4(/i3-OH)2(/r, / -acac)6( -acac)4 (R = Y, Nd acac = acetylacetonate) have also been obtained, but by rather different procedures (Barash et al., 1993 Poncelet and Hubert-Pfalzgraf, 1989). The neodymium cluster was... [Pg.210]

Na2iHi36Moi54053oP7 -300H2O, Molybdate, polyoxo-, wheel-shaped cluster with hypo-phosphite ion, hydrate, 34 199 Nd4Cl8N605gCi8H66, Neodymium(III),... [Pg.254]

Treatment of a suspension of Nd(NHPh)3(KCl)3 with trimethylalumi-num in hexane yielded the heteroleptic heterobimetallic cluster [Nd[(//.2-Me)2A/Me2]2(M3-NPh)(M2-Me)AlMe 2 in low yield (Fig. 29). The formation of the cyclic byproduct (Me2AlNHPh)3 was proven by means of NMR spectroscopy and X-ray crystallography [217]. The molecular structure of the Nd2Al6 dimer revealed the presence of a doubly deprotonated imido ligand bridging each a neodymium center and two aluminum atoms. [Pg.215]

Nd3(H20)i7(a2-P2Wi706i)] displays a one-dimensional chain structure built up of bisupporting anions [ Nd(H20)7 2 Nd(H20)3(a2-P2Wi706i) 2] and additional neodymium linkers [36], The structure of the bisupporting anions have similar stractures to the above mentioned [ Nd(H20)7 2 Nd(H20)3(a2-P2Wi706i) 2] cluster. [Pg.215]

Nd2(H20)i4 Na(H20)P5W3oOiio ] shows a one-dimensional chain structure built from Preyssler anions [Na(H20)P5W3oOno] " linked by neodymium cations. In the complex, the adjacent [Na(H20)P5W3oOno] clusters are linked to each other about a center of symmetry... [Pg.216]

In addition to the frequent incorporation of 0x0 and hydroxo groups into cluster core structures, halo ligands have also been found in many lanthanide alkoxide clusters. An early example is [Nd6(/i6"Cl)(/i3-OPr )2 (/i-OPr )9(OPr )6] (Andersen et al., 1978), a hexanuclear cluster obtained from the reaction of NdCla with NaOPr in HOPr. The six neodymium... [Pg.123]

The doping of noble metal catalyst precursors is not restricted to the early transition metal series. Toshima has reported significant promotion of catalytic activity in the hydrogenation of acrylic acid by the addition of neodymium ions to palladium particles. Recently, Liu and coworkers have studied the influence of metal ions on the hydrogenation of o-chloronitrobenzene over platinum colloidal clusters, and the metal complex effect on the catalytic performance of metal... [Pg.916]

The challenges in suppressing concentration quenching, because of clustering, and hydroxyl quenching, because of silanol are similar to those encountered in neodymium-doped gel-glasses. [Pg.296]

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See also in sourсe #XX -- [ Pg.389 ]



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Neodymium

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