메뉴 건너뛰기




Volumn 29, Issue 1, 2010, Pages 32-33

Arsenicin A, A natural polyarsenical: Synthesis and crystal structure

Author keywords

[No Author keywords available]

Indexed keywords

ADAMANTANES; ARSENIC TRIOXIDE; METHYLENE GROUPS; OXYGEN ATOM; STEREOCENTERS; SYNTHESIS AND CRYSTAL STRUCTURE; TYPE STRUCTURES;

EID: 73649106171     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om900998q     Document Type: Article
Times cited : (21)

References (11)
  • 7
    • 73649125542 scopus 로고    scopus 로고
    • Synthesis of (RAs*,RAs*, ±), RAs*,SAs*)-2: the reduction of methylenebis(phenylarsinic acid)4 with an 8-fold excess of sodium borohydride in methanol at -78 °C gave (RAs*, RAs*, ±), RAs*, S As*)-methylenebis(phenylarsine) in 53% yield after distillation. Deprotonation of the bis(secondary arsine) with 2 equiv of n-butyllithium in the presence of tetramethyl-1,2-ethylenediamine (TMEDA) gave [Li(TMEDA)]2[CH2(AsPh)2, which was isolated as a yellow crystalline solid and treated with 2 equiv of (chloromethyl) diphenylarsine6 in THF. The pure tetraarsine was isolated as a colorless liquid following elution with dichloromethane-n-hexane from a silica plate with use of a Chromatotron
    • 6 in THF. The pure tetraarsine was isolated as a colorless liquid following elution with dichloromethane-n-hexane from a silica plate with use of a Chromatotron.
  • 9
    • 73649093146 scopus 로고    scopus 로고
    • Crystal data for (RAs*,RAs*,R As*,RAs*, ±)-1: C 3H6As4O3; triclinic; space group F1̄ unit cell dimensions a, 7.3954(6) Å, b, 11.4072(10) Å, c, 11.5554(9) Å, a, 118.772(3)°, β, 90.380(3)°, γy, 90.766(3)° V= 854.30(12) Å3; Z, 4; calculated density 3.030 Mg m -3; T= 295 K; λ, 0.710 73 Å 14 095 reflections collected; 3884 independent reflections (Rint, 0.092, θmax, 27.5° absorption corrected by integration via Gaussian method implemented in maXus (2000, refinement method full-matrix least squares on F2; no. of data/parameters 3884/182; GOF, 0.99; final R1 (F2 > 2σ(F2, 0.062, wR2 F2, 0.182. All of the crystals of this compo
    • 2) = 0.182. All of the crystals of this compound examined were twinned. The nature of the twinning was identified and the ratio of the two components refined.
  • 11
    • 0001462640 scopus 로고    scopus 로고
    • Frankenberger, W. T, Jr, Ed, Marcel Dekker: New York, Chapter 3, pp
    • Francesconi, K. A.; Keuhnelt, D. In Environmental Chemistry of Arsenic; Frankenberger, W. T., Jr., Ed.; Marcel Dekker: New York, 2002; Chapter 3, pp 51-116.
    • (2002) Environmental Chemistry of Arsenic , pp. 51-116
    • Francesconi, K.A.1    Keuhnelt, D.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.