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Condensation of bis(2-aminophenyl)disulphide with aromatic aldehydes yielded the corresponding dithiophenyldiimines. Dinuclear ruthenium complexes were obtained by reacting the diimines (9) [bis(2-hydroxybenzaldehyde)-phenyldisulphide diimine], with RuCl 3 in the presence of L (L ¼ 2,2 0 -bipyridine, 1,10-phenanthroline, 3,4-diaminotoluene, pyridine and PPh 3 ) in EtOH. The two metal centres, connected through bridging chlorides, are in octahedral environments with one metal centre coordinated to sulphur and water while the other is coordinated to L.

The new complexes OsO 4 ؒnmo (nmo = N-methylmorpholine N-oxide) and OsO 4 ؒnmm (nmm = Nmethylmorpholine) have been made, their crystal structures determined, and their possible involvement in the catalysed dihydroxylation of alkenes considered. The use of cis-[OsO 4 (OH) 2 ] 2Ϫ as a catalyst for the oxidation of alcohols, aldehydes and alkyl halides to carboxylic acids with [Fe(CN) 6 ] 3Ϫ and other co-oxidants and also for the cleavage and dihydroxylation of alkenes with [Fe(CN) 6 ] 3Ϫ has been investigated.

A series of Schiff bases (1-9) were assayed for antibacterial (S. aureus, E. faecalis P. aeruginosa) and antifungal (C. albicans and A. niger) activities using disc diffusion method. Among the compounds tested [bis(p-methoxybenzaldimino)phenyldisulfide], 5 showed the most favourable antibacterial and [o,o'-(N,Ndipicolinyldene)diazadiphenyldisulfide], 6 antifungal activities with MICs of 1 mg/mL and 0.025 mg/mL against S. aureus and C. albicans respectively.

Mango trees are evergreen plants that are present all around Mauritius. In this study, mango leaves, Mangifera indica grown in Mauritius were investigated for their nutritional values involving proximate composition, total flavonoid (TFC), total phenolic (TPC), and mineral content, and phytochemicals as well as its antioxidant and antibacterial properties. e ash, crude fat, neutral detergent fiber (NDF), acid detergent fiber (ADF), and acid detergent lignin (ADL) of the mango leaves were found to be 12. 61, 3.92, 35.32, 34.98, and 12.86%, respectively. e calcium content (2.15%) was above the normal required range, while the phosphorus content (0.12%) and crude protein content (13.60%) were within the normal required range of common fodders. e phytochemical results showed the presence of saponins, alkaloids, phenols, tannins, and flavonoids in the crude, EtOAC, and MeOH extracts. e values of TPC and TFC were higher for the EtOAC extract compared to the MeOH extract. Several secondary metabolites were identified from the leaves of the Mangifera indica which include 11 phenols, 4 xanthones, 9 flavanols, 10 benzophenones, 7 terpenoids, and 4 derivatives of gallotannins using UPLC-MS/MS. e presence of these metabolites is responsible for good antioxidant and antibacterial properties. Hence, mango leaves can be exploited for its potential use as a supplementary fodder for ruminants.

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