8,8′-Dibromo-6,6′, 7,7′-tetramethoxy-5,5′-diisopropyl-3,3′-oxydimethylene dinaphtho[2,1- b:2′, 1′-d]furan, C_(32)H_(30)Br_2O_; M. W.=670; triclinic; space group P1; a=8.896(2), b=10.216(1), c= 10.423(1)A, α=10...8,8′-Dibromo-6,6′, 7,7′-tetramethoxy-5,5′-diisopropyl-3,3′-oxydimethylene dinaphtho[2,1- b:2′, 1′-d]furan, C_(32)H_(30)Br_2O_; M. W.=670; triclinic; space group P1; a=8.896(2), b=10.216(1), c= 10.423(1)A, α=108.48(1), β=119.36(1), γ=99.26(1); V=723.5A^3; Z=1, D_(cal.)=1.479 g.cm^(-3). Mo K_α=28.11cm^(-1), F(000)=326, T=293K. The structure was solved by direct method and full-matrix least-squares refinement converged at R=0.034 for 2377 observed reflections. The oxygen atom in seven-membered ring exists in a disordered arrangement. Both bisnaphthalene and oxygen-containing five-membered ring have planar conformations with dihedral angle 6°, showing marked aromatic feature.展开更多
文摘8,8′-Dibromo-6,6′, 7,7′-tetramethoxy-5,5′-diisopropyl-3,3′-oxydimethylene dinaphtho[2,1- b:2′, 1′-d]furan, C_(32)H_(30)Br_2O_; M. W.=670; triclinic; space group P1; a=8.896(2), b=10.216(1), c= 10.423(1)A, α=108.48(1), β=119.36(1), γ=99.26(1); V=723.5A^3; Z=1, D_(cal.)=1.479 g.cm^(-3). Mo K_α=28.11cm^(-1), F(000)=326, T=293K. The structure was solved by direct method and full-matrix least-squares refinement converged at R=0.034 for 2377 observed reflections. The oxygen atom in seven-membered ring exists in a disordered arrangement. Both bisnaphthalene and oxygen-containing five-membered ring have planar conformations with dihedral angle 6°, showing marked aromatic feature.
