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Volumn 46, Issue 21, 2007, Pages 8466-8468

Eu3(AsS4)2 and AxEu 3-yAs5-zS10 (A = Li, Na): Compounds with simple and complex thioarsenate building blocks

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EID: 35648982423     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic701067r     Document Type: Article
Times cited : (27)

References (32)
  • 24
    • 35649016817 scopus 로고    scopus 로고
    • Eu3(AsS4)2: It was prepared by combining Eu (0.091g, 0.6mmol, As (0.03g, 0.4mmol, and S (0.051g, 1.6mmol, The starting materials were loaded in a fused-silica tube in a nitrogen-filled glove box. The tube was evacuated (<10-4 Torr) and sealed, put in a computer-controlled furnace, and heated to 650°C in 10 h. It was maintained at this temperature for 60 h, followed by cooling at the rate of 5°C/h to room temperature. The product consisted of dark-red chunks. Semi-quantitative microprobe analysis using energy dispersive spectroscopy (EDS) on the dark-red chunks gave Eu3.4As2S7.2. Li0.73Eu3As4.43S10: This compound was isolated from the reaction mixture of Li2S (0.015g, 0.33mmol, Eu (0.101g, 0.67mmol, As (0.125g, 1.67mmol, and S (0.075g, 2.33mmol) using a similar procedure as above. The product was isolated by washing with dime
    • 10.4".
  • 26
    • 35649025933 scopus 로고    scopus 로고
    • Eu3(AsS4)2: A full sphere of data was collected on a red crystal using a Bruker AXS SMART diffractometer. An empirical absorption correction was applied using SADABS. The structure was solved with direct methods using the SHELXTL package. Hexagonal R3c, a, 9.254(3) Å, b, 9.254(3) Å, c, 27.698(12) Å, Dc, 4.182 g/cm3, crystal dimensions: 0.15 x 0.10 x 0.03 mm3, θ, 2.94-28.26°, μ, 19.540 mm -1, 1834 total reflections, 541 unique reflections with R int, 0.027, GOF, 1.008, R1, 2.38, wR2, 5.80% for I > 2σ(I, Li0.73Eu3As4.43S 10 (IIa, Single-crystal X-ray diffraction data were collected using a STOE imaging plate diffraction system (IPDS-2) with graphite- monochromatized Mo Kα radiation. A numerical absorption correction was applied usi
    • int = 0.0730, GOF = 1.088, R1 = 4.49%, wR2 = 9.81% for I > 2σ(I).
  • 31
    • 35649027527 scopus 로고    scopus 로고
    • Work to characterize these members is under way
    • Work to characterize these members is under way.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.