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Pregled bibliografske jedinice broj: 250292

Synthesis and Structural Characterization of 3 new Compounds Containing [Nb6Cl12](2+) Units as Hydrated Hydroxides


Brničević, Nevenka; Planinić, Pavica; McCarley, Robert E.; Antolić, Snježana; Luić, Marija; Kojić-Prodić, Biserka
Synthesis and Structural Characterization of 3 new Compounds Containing [Nb6Cl12](2+) Units as Hydrated Hydroxides // Journal of the Chemical Society. Dalton transactions, 1995 (1995), 9; 1441-1446 doi:10.1039/dt9950001441 (međunarodna recenzija, članak, znanstveni)


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Naslov
Synthesis and Structural Characterization of 3 new Compounds Containing [Nb6Cl12](2+) Units as Hydrated Hydroxides

Autori
Brničević, Nevenka ; Planinić, Pavica ; McCarley, Robert E. ; Antolić, Snježana ; Luić, Marija ; Kojić-Prodić, Biserka

Izvornik
Journal of the Chemical Society. Dalton transactions (0300-9246) 1995 (1995), 9; 1441-1446

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
niobium ; clusters ; hexanuclear niobium clusters ; cluster hydroxides ; complexes ; crystal structures

Sažetak
Conditions have been established for the preparation of three different hydrated chloroniobium cluster hydroxide compounds from alkaline solutions: triclinic [Nb6Cl12(OH)(2)(H2O)(4)].4H(2)O 1 and two cubic compounds whose structures are uncertain with regard to the co-ordination of OH- ions. Nb6Cl12(OH)(2)(H2O)(14) 2 and Nb6Cl12(H2O)(14)(OMe)(2) 3. Based upon structural data 2 and 3 may contain either the cation [Nb6Cl12(H2O)(6)](2+)or the neutral cluster [Nb6Cl12(OH)(2)(H2O)(4)] containing hydroxo ligands. In 1 distinct distances of 2.147(5) for Nb-OH, and 2.250(5) and 2.289(5) Angstrom for Nb-OH2 were found. In 2 and 3 only distances of 2.19(1) and 2.193(7) Angstrom, respectively, were found for the Nb-O bonds of co-ordinated water (or hydroxide-water averaged). Compound 1 is triclinic, space group P (1) over bar, a = 8.930(3), b = 9.195(2), c = 9.118(1) Angstrom, alpha = 104.37(2), beta = 99.51(2) and gamma = 116.99(2)degrees, U = 611.9(3) Angstrom(3) Z = 1, R = 0.036. Compound 2 is cubic, space group Fm (3) over bar m, a = 14.59(2) Angstrom, U = 3105.7(1) Angstrom(3) Z = 4, R = 0.028. Compound 3 is also cubic, space group Fm (3) over bar m, a = 14.627(1) Angstrom, U = 3129.3(1) Angstrom(3), Z = 4. R = 0.031. IR spectra of 1 show strong O-H and Nb-O stretching bands that reflect the presence of co-ordinated OH- groups. In 2 and 3 the IR spectra are less definitive about possible co-ordination of hydroxide.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Ustanove:
Institut "Ruđer Bošković", Zagreb

Poveznice na cjeloviti tekst rada:

doi pubs.rsc.org

Citiraj ovu publikaciju:

Brničević, Nevenka; Planinić, Pavica; McCarley, Robert E.; Antolić, Snježana; Luić, Marija; Kojić-Prodić, Biserka
Synthesis and Structural Characterization of 3 new Compounds Containing [Nb6Cl12](2+) Units as Hydrated Hydroxides // Journal of the Chemical Society. Dalton transactions, 1995 (1995), 9; 1441-1446 doi:10.1039/dt9950001441 (međunarodna recenzija, članak, znanstveni)
Brničević, N., Planinić, P., McCarley, R., Antolić, S., Luić, M. & Kojić-Prodić, B. (1995) Synthesis and Structural Characterization of 3 new Compounds Containing [Nb6Cl12](2+) Units as Hydrated Hydroxides. Journal of the Chemical Society. Dalton transactions, 1995 (9), 1441-1446 doi:10.1039/dt9950001441.
@article{article, year = {1995}, pages = {1441-1446}, DOI = {10.1039/dt9950001441}, keywords = {niobium, clusters, hexanuclear niobium clusters, cluster hydroxides, complexes, crystal structures}, journal = {Journal of the Chemical Society. Dalton transactions}, doi = {10.1039/dt9950001441}, volume = {1995}, number = {9}, issn = {0300-9246}, title = {Synthesis and Structural Characterization of 3 new Compounds Containing [Nb6Cl12](2+) Units as Hydrated Hydroxides}, keyword = {niobium, clusters, hexanuclear niobium clusters, cluster hydroxides, complexes, crystal structures} }
@article{article, year = {1995}, pages = {1441-1446}, DOI = {10.1039/dt9950001441}, keywords = {niobium, clusters, hexanuclear niobium clusters, cluster hydroxides, complexes, crystal structures}, journal = {Journal of the Chemical Society. Dalton transactions}, doi = {10.1039/dt9950001441}, volume = {1995}, number = {9}, issn = {0300-9246}, title = {Synthesis and Structural Characterization of 3 new Compounds Containing [Nb6Cl12](2+) Units as Hydrated Hydroxides}, keyword = {niobium, clusters, hexanuclear niobium clusters, cluster hydroxides, complexes, crystal structures} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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  • Chemical Abstracts


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