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Volumn 47, Issue 11, 2008, Pages 4436-4438

A new family of spin-crossover complexes based on a Fe II(tetrazolyl)4(MeCN)2-type core

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EID: 46749142607     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic8002993     Document Type: Article
Times cited : (46)

References (42)
  • 20
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  • 39
    • 46749141360 scopus 로고    scopus 로고
    • 1,3-Dibromo-2-hydroxypropane (0.040 mol, 8.72 g) dissolved in acetonitrile (50 mL) was added to the sodium tetrazolate (0.090 mol, 8.28 g) suspended in acetonitrile (100 mL, The reaction mixture was stirred and refluxed for 48 h. Then, the precipitated NaBr was filtered off and the MeCN was evaporated under reduced pressure. From the obtained residue, 3 (Rf, 0.7, 1 (Rf, 0.5, and 2 (Rf, 0.3) were isolated by column chromatography on silica gel eluting with a mixture of CH2Cl2/MeCN/MeOH, 6:2:0.4 (v/v, 3, 1, and 2 were obtained with yields of 19.4, 1.52 g, 41.0, 3.22 g, and 14.6, 1.15 g, respectively. Anal. Calcd for 1 (C5H8N8O, Mw, 196.17, C, 30.6; H, 4.1; N, 57.1. Found: C, 30.9; H, 4.1; N, 56.9, 1H NMR (300 MHz, DMSO-d6) δ: 8.89 (s, 1H, CH of tetrazol-1-yl, 8.64 s, 1H
    • +). The analytical characteristics of 2 and 3 were deposited as Supporting Information.
  • 40
    • 46749137552 scopus 로고    scopus 로고
    • Crystal data for 1 at 100 K: C5H8N 8O, λ, 0.71073 Å, monoclinic, P21/c, a, 8.508(2) Å, b, 11.454(3) Å, c, 9.485(3) Å, β, 113.36(3)°, V, 848.6(4) Å3, R1, 0.0464, wR2, 0.1007 (for 2834 reflections with I > 2θ(I, Crystal data for 4 at 293 K: [Fe(C5H 8N8)2(CH3CN)2](ClO 4)2·2(CH3CN, γ, 0.71073 Å, triclinic, P1, a, 8.968(2) Å b, 10.205(4) Å, c, 11.435(3) Å, α, 68.05(3)°, β, 85.64(2)°, γ, 63.39(3)°, V, 862.5(5) Å3, R1, 0.0460, wR2, 0.1218 (for 3632 reflections with I > 2η(I, Crystal data for 4 at 100 K: [Fe(C5H8N8) 2
    • 3, R1 = 0.0395, wR2 = 0.0992 (for 2989 reflections with I > 2θ(I)).
  • 42
    • 46749094679 scopus 로고    scopus 로고
    • Synthesis of the complex was performed under a nitrogen atmosphere. 1 (0.15 mmol, 29.4 mg) dissolved in CH3CN (4 mL) was added to the solution of Fe(ClO4)2·6H2O (0.15 mmol, 54.4 mg) in CH3CN (4 mL, The resulting clear solution was left in the closed Schlenk flask. After 10 days, the colorless crystals of the complex were filtered off and dried in a stream of nitrogen. Yield: 11.8 mg 19.4, Anal. Calcd for FeC18H28N20Cl 2O10: C, 26.6; H, 3.5; N, 34.5. Found: C, 26.7; H, 3.2; N, 34.4
    • 10: C, 26.6; H, 3.5; N, 34.5. Found: C, 26.7; H, 3.2; N, 34.4%.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.