Two new neolignans, (7S,8R)-guaiacylglycerol-8-O-4'-sinapyl ether 9'-O-beta-D- glucopyranoside (1) and (7S,8R)-syringylglycerol-8-O-4'-sinapyl ether 9'-O-beta-D-gluco- pyranoside (2) were isolated from the leaves of Syringa velutina Kom.. Their structures were established by chemical properties and spectroscopic evidence.
The title compound, [ZnBr(2)(C(4)H(5)N(3))(2)], is a mononuclear complex in which the Zn(II) ions have distorted tetra-hedral coordination geometry. The Zn(II) ion binds to two N atoms from two different 2-amino-pyrimidine ligands and two bromide ions. N-H⋯N hydrogen bonds link the mol-ecules to form a one-dimensional supra-molecular structure. The… (More)
Two mononuclear complexes, [Ni(acac)2].0.5CH3OH (1) and[Co(acac)2NO3].2H2O (2) (acac = pentane-2,4-dione), have been synthesized and characterized by single crystal X-ray analysis. Complex 1 crystallizes in the monoclinic space group P2(1)/c with a = 9.295(4), b = 11.450(5), c = 12.974(6) A, V = 1379.1(11) A(3),beta = 92.854(7), and Z = 4. Complex 2… (More)