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Volumn 48, Issue 16, 2009, Pages 7528-7530

A remarkable member of the polyoxometalates: The eight-nickel-capped α-keggin polyoxoazonickelate

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EID: 68949152572     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic9012872     Document Type: Article
Times cited : (34)

References (54)
  • 19
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    • (a) Keggin, J. F. Nature 1933, 131, 908.
    • (1933) Nature , vol.131 , pp. 908
    • Keggin, J.F.1
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    • 39549084225 scopus 로고    scopus 로고
    • (b) Müller, A. Nature 2007, 447, 1035.
    • (2007) Nature , vol.447 , pp. 1035
    • Müller, A.1
  • 39
    • 0038079492 scopus 로고    scopus 로고
    • (d) Müller, A. Science 2003, 300, 749-750.
    • (2003) Science , vol.300 , pp. 749-750
    • Müller, A.1
  • 40
    • 68949115556 scopus 로고    scopus 로고
    • Synthesis of [Ni20(OH)24(MMT)12(SO 4, NO3)2·6H2O (1, A mixture of Ni(NO3)2·6H2O (0.290 g, 1 mmol, MMT (0.132 g, 1 mmol, triethylamine (0.102 g, 1.67 mmol, ethanolamine (0.072 g, 0.717 mmol, 4 mL of H2O, and 4 mL of C2H5OH was sealed in a 23 mL Teflon-lined stainless steel vessel and heated to 110 °C for 3 days and then cooled to room temperature at a rate of 0.1 °C/min. Green octahedral crystals were obtained. The product was washed with C2H5OH and dried in air 39% yield based on Ni II, Elem anal. Calcd for C36H72N 26Ni20O40S: C, 12.40; H, 2.07; N, 10.45; S, 23.87. Found: C, 12.36; H, 2.12; N, 10.50; S, 23.86
    • 40S: C, 12.40; H, 2.07; N, 10.45; S, 23.87. Found: C, 12.36; H, 2.12; N, 10.50; S, 23.86.
  • 41
    • 68949119082 scopus 로고    scopus 로고
    • Crystal data of 1: C36H72N26Ni 20O40S26, MT, 3484.88, tetragonal, space group I 4, a= 13.7540(19) A, b= 13.7540(19) Å, c=28.029(6) Å, α=β= γ=90°, V=5302.3(15) Å3, Z=8, ρcalcd=2.183 g/cm3, Rint=0.0621, final R1, 0.0552 (wR2, 0.1318) for 2966 independent reflections [I > 2σ(I, Data were collected on a Bruker Smart-Apex CCD diffractometer with Mo Kα (λ, 0.71073 Å) at 298 K using the ω-scan technique. Multiscan absorption corrections were applied. The structure was solved by direct methods and refined by full matrix least squares on F2 using SHELXTL-97 software. The Flack parameter of 0.00(2) for 1 indicates that the absolute configuration is correct
    • 2 using SHELXTL-97 software. The Flack parameter of 0.00(2) for 1 indicates that the absolute configuration is correct.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.