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Volumn 47, Issue 23, 2008, Pages 10813-10815

Anion-perturbed magnetic slow relaxation in planar {Dy4} clusters

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EID: 57949116989     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic8016722     Document Type: Article
Times cited : (248)

References (22)
  • 21
    • 57949091774 scopus 로고    scopus 로고
    • 1 was prepared by quickly adding triethylamine (1.0 mmol) to a stirred solution of DyCl3·6H2O (1.0 mmol, o-vanillin (1.0 mmol, and 2-aminoethanol (1.0 mmol) in 40 mL of a 3:1 MeOH/MeCN mixture. After slow evaporation over 2 weeks, the yellow solution yielded X-ray-quality yellow block crystals. Yield: 140 mg/ 31.2, Anal. Calcd for 1·7H2O: C, 27.83; H, 3.62; N, 3.24. Found: C, 27.78; H, 3.24; N, 3.74. IR (KBr disk, cm-1, 3429 (br, 1639 (vs, 1555.6 (m, 1448 (s, 1411 (m, 1303 (m, 1216 (s, 1096 (w, 949 (m, 859 (w, 788 (w, 729 (m, 649 (w, 553 (w, Pale-yellow plates of 2 result if 10 mL of a saturated methanolic solution of NaN3 is added to the reaction mixture. Yield: 60 mg/13.7, Anal. Calcd for 2·4H 2O: C, 28.28; H, 3.32; N, 13.19. Found: C, 28.23; H, 3.14; N, 12.85. IR (KBr disk, cm-1, 3410 (br, 2087 (vs, 1635 (s, 1555 (w, 1471 s, 1
    • -1): 3410 (br), 2087 (vs), 1635 (s), 1555 (w), 1471 (s), 1393 (w), 1301 (w), 1221 (s), 1053 (m), 961 (m), 894 (w), 856 (w), 787 (w), 738 (m), 629 (w), 563 (w).
  • 22
    • 57949110979 scopus 로고    scopus 로고
    • Crystal data for 1: C49H73Cl 4Dy4N7O17, M, 1823.94 g mol-1, triclinic, space group P1, T, 200 K, a, 11.2208(14) Å, b, 11.9345(15) Å, c, 14.1452(18) Å, α, 87.530(15)°, β, 66.880(14)°, γ, 63.590(14)°, V, 1540.3(3) Å3, Z, 1, F(000, 884, ρ, 1.966 g cm-3, μ, 5.039 mm-1; total data 11 187, unique data 5631, Rint, 0.0408, 372 parameters, wR2, 0.0984, S, 1.000 (all data, R1, 0.0352 for 4885 with I ≥ 2σ(I, largest diff peak/hole +0.90/-0.73 e Å-3. Crystal data for 2: C44H64Dy4N 16O18, M, 1755.11 g mol-1, triclinic, space group P1, T, 100 K, a, 11.1847(5) Å, b, 11.3918(5) A
    • -3. Crystallographic data (excluding structure factors) are available from the Cambridge Crystallographic Data Centre as supplementary publication nos. CCDC 706291 and 706292.


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