The organotin(IV) complexes [RSn(L)] (where R = Me (2), R = n-Bu (3), R = Ph (4); H2L (1) = 5-bromo-2-hydroxybenzaldehyde-4,4-dimethylthiosemicarbazone) have been synthesized by the reaction of organotin(IV) chloride(s) with H2L (1). All the compounds have been characterized by CHN analyses, UV–vis, FT-IR, 1H, 13C and 119Sn NMR spectral studies. The molecular structure of H2L (1) has been confi...

A new six coordinated tetra-nuclear macrocyclic Zn(II) complex, ZnL4(Phen)2 (1) (HL= 3-bromo-2-hydroxybenzaldehyde-pyridine-2-carbohydrazone, Phen = 1,10-phenanthroline) has been synthesized by the self-assembly of Zn(CH3COO)2•2H2O, NaOH and 1,10-phenanthroline in water/ethanol (v:v 1:3) solution. Complex 1 was characterized elemental analysis, infra red (IR), single-crystal X-ray diffraction (...

G UNNERA PERPENSA L., FAMILY GUNNERAceae, is among the most frequently cited of about 90 species used by South African traditional healers in pregnancy-related medicines. Seven bioactive compounds were isolated from Gunnera perpensa roots, with five of these being novel to the species at the time of identification. These are 3,3’,4’-tri-Omethyl ellagic acid lactone, ellagic acid lactone, 1,1’-b...

Abstract C 14 H 10 O 4 Se 2 , triclinic, P 1 ‾ $P\overline{1}$ (no. 2), a = 6.6836(11) Å, b 8.9933(11) c 11.5062(19) α 77.128(12)°, β 87.684(14)°, γ 89.975(12)°, V 673.65(18) Å 3 Z 2, R gt ( F ) 0.0564, w ref 0.1512, T 293...