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Self-assembled trinuclear arsenic and antimony macrobicycles.
Collins, Mary S; Choi, Robert Y; Zakharov, Lev N; Watson, Lori A; Hay, Benjamin P; Johnson, Darren W.
Afiliação
  • Collins MS; Department of Chemistry & Biochemistry and Materials Science Institute , University of Oregon , Eugene , Oregon , USA 97403-1253 . Email: dwj@uoregon.edu ; ; Tel: +1-541-346-1695.
  • Choi RY; Department of Chemistry & Biochemistry and Materials Science Institute , University of Oregon , Eugene , Oregon , USA 97403-1253 . Email: dwj@uoregon.edu ; ; Tel: +1-541-346-1695.
  • Zakharov LN; CAMCOR - Center for Advanced Materials Characterization in Oregon , University of Oregon , Eugene , OR 97403-1443 , USA.
  • Watson LA; Department of Chemistry , Earlham College , Richmond , IN 47374-4095 , USA.
  • Hay BP; Supramolecular Design Institute , Oak Ridge , TN 37830-7185 , USA.
  • Johnson DW; Department of Chemistry & Biochemistry and Materials Science Institute , University of Oregon , Eugene , Oregon , USA 97403-1253 . Email: dwj@uoregon.edu ; ; Tel: +1-541-346-1695.
Chem Sci ; 6(4): 2444-2448, 2015 Apr 01.
Article em En | MEDLINE | ID: mdl-29308156
The synthesis of six trinuclear Pn3L2 macrobicycles (Pn = As, Sb) was achieved by self-assembly of a pnictogen trichloride and a 2,4,6-trisubstituted-1,3,5-benzenetrimethanethiol ligand. 1H-NMR spectroscopy reveals self-assembly in 1,1,2,2-tetrachloroethane is dynamic in solution producing two structural isomers. The symmetric and the asymmetric isomers (in which a single chloride ligand is cast in an opposing direction from other chlorides) of the As3L2 complexes exist in a ca. 2 : 1 distribution, whereas only the symmetric isomer is observed in solution for Sb3L2. Solvent effects appear to influence conformational isomerism and conversion to the final products. Macrobicycles were confirmed by 1H-NMR spectroscopy and X-ray crystallography and further studied by MP2/LANL2DZ optimizations.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Chem Sci Ano de publicação: 2015 Tipo de documento: Article País de publicação: Reino Unido

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Chem Sci Ano de publicação: 2015 Tipo de documento: Article País de publicação: Reino Unido