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Volumn 46, Issue 11, 2007, Pages 4383-4385

13-Tungstoborate stabilized by an organostannoxane hexamer

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EID: 34250705817     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic7004437     Document Type: Article
Times cited : (36)

References (42)
  • 2
    • 0003139751 scopus 로고    scopus 로고
    • Pope, M. T, Yamase, T, Eds, Kluwer: Dordrecht, The Netherlands
    • (b) Polyoxometalate Chemistry for Nanocomposite Design; Pope, M. T., Yamase, T., Eds.; Kluwer: Dordrecht, The Netherlands, 2002.
    • (2002) Polyoxometalate Chemistry for Nanocomposite Design
  • 3
    • 3442886712 scopus 로고    scopus 로고
    • Borrás-Almenar, J. J, Coronado, E, Müller, A, Pope, M. T, Eds, Kluwer: Dordrecht, The Netherlands
    • (c) Polyoxometalate Molecular Science; Borrás-Almenar, J. J., Coronado, E., Müller, A., Pope, M. T., Eds.; Kluwer: Dordrecht, The Netherlands, 2003.
    • (2003) Polyoxometalate Molecular Science
  • 4
    • 84902427927 scopus 로고    scopus 로고
    • McCleverty, J. A, Meyer, T. J, Eds, Elsevier Ltd, Oxford
    • (d) Pope, M. T. In Comprehensive Coordination Chemistry II; McCleverty, J. A., Meyer, T. J., Eds.; Elsevier Ltd.: Oxford, 2004.
    • (2004) Comprehensive Coordination Chemistry II
    • Pope, M.T.1
  • 5
    • 0000217970 scopus 로고
    • For recent examples see: a
    • For recent examples see: (a) Xin, F.; Pope, M. T. Organometallics 1994, 13, 4881.
    • (1994) Organometallics , vol.13 , pp. 4881
    • Xin, F.1    Pope, M.T.2
  • 36
    • 34250731007 scopus 로고    scopus 로고
    • 2O was synthesized according to ref 4e.
    • 2O was synthesized according to ref 4e.
  • 37
    • 34250747658 scopus 로고    scopus 로고
    • 2O (0.642 g, 0.2 mmol) was added. The reaction mixture (pH 4.0) was heated at ∼70°C for 30 min. After cooling down to room temperature, aqueous 1 M NaCl solution (2.5 mL) was added to the resulting clear solution. Plate-like colorless crystals suitable for X-ray diffraction were formed in a few days by slow evaporation of the solvent at room temperature.
    • 2O (0.642 g, 0.2 mmol) was added. The reaction mixture (pH 4.0) was heated at ∼70°C for 30 min. After cooling down to room temperature, aqueous 1 M NaCl solution (2.5 mL) was added to the resulting clear solution. Plate-like colorless crystals suitable for X-ray diffraction were formed in a few days by slow evaporation of the solvent at room temperature.
  • 38
    • 34250753032 scopus 로고    scopus 로고
    • Synthesis of 1a: To a solution of Na2WO 4·2H2O (0.132 g, 0.4 mmol) and (CH 3)2SnCl2 (0.132 g, 0.6 mmol) in aqueous 1 M KCl (30 mL) solid K8[HBW11O39]·13H 2O (0.642 g, 0.2 mmol) was added. The reaction mixture (pH 4.7) was heated at ∼70°C for 30 min, leading to a cloudy solution which was filtered while hot and then left for evaporation of the solvent in an open beaker. Compound 1a was obtained overnight as a crystalline powder (yield: 0.322 g, 39% based on Sn, Anal. Calcd (found) for C12H 106B2K12O128Sn6W 26: C, 1.74 (1.62, H, 1.29 (1.27, B, 0.26 (0.20, K, 5.67 (5.50, Sn, 8.60 (8.74, W, 57.7 (58.1, IR, KBr pellets, cm-1, 1229(w, 1203(sh, 1065(sh, 968(m, 952(s, 902(s, 835(vs, 780(vs, 769(sh, 742(sh, 636(m, 549(sh, 517(m, 451w, TGA/DS
    • 26: 91.37 (91.40)].
  • 39
    • 34250729330 scopus 로고    scopus 로고
    • Crystal data for 1a: C12H106B 2K12O128Sn6W26, fw, 8282.0 g·mol-1, triclinic, P1 space group; a, 12.2644(8) Å, b, 13.0387(12) Å, c, 23.392(2) Å, α, 91.952(5)°, β, 96.536(5)°, γ, 111.559(4)°, V, 3444.7(5) Å3, Z, 1, ρcalcd, 4.015 g·cm-3, μ, 23.144 mm -1; 93 894 collected reflns, 14 054 unique (Rint, 0.191, 7770 observed [I > 2σ(I, 490 params, R(F, 0.065 [I > 2σ(I, wR(F)2, 0.180 (all data, GOF, 1.008; Bruker X8 APEX II CCD diffractometer, T, 173(2) K, λMo Kα, 0.71073 Å
    • 2 = 0.180 (all data), GOF = 1.008; Bruker X8 APEX II CCD diffractometer, T = 173(2) K, λ(Mo Kα) = 0.71073 Å.


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