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• W1969919332 abstract "A new synthetic pathway for complexes containing the polynuclear core [Mo3S7]4+ is described: [Mo3S7(S2)3]2− reacts with HBr to [Mo3S7Br6]2− which seems to be a useful intermediate for further ligand substitution. A new complex with mercapto- succinic acid C4H6O4S (H3msa) as ligand could be prepared. 1H NMR and 13C NMR spectra and X-ray crystal structure analysis are in agreement with the bidentate coordination of mercapto-succinic acid, where S− and COO− are bound to the same molybdenum atom forming a five-membered ring. A monoclinic crystal, space group C2, of the composition [C18H30N3]2[Mo3S7(Hmsa)3][Mo3S7(Hmsa)2(msa)] Br·6H2O was used for X-ray diffraction. The cell parameters are a=21.968(7), b=13.423(13), c= 18.828(3) Å, β=94.23°, Z=2, Dc=1.606 g/cm3, μ(Mo Kα)=13.51 cm−1. [Mo3S7(Hmsa)3]2− is stable in water and air, and it can be precipitated from aqueous solution by the addition of large three-fold charged cations. It can be deprotonated reversibly to [Mo3S7(msa)3]5− in water. The pK values are 3.95, 4.41, 5.02 (1 M KCl, 25 °C). To confirm the above described procedure as a useful approach for [Mo3S7]4+ complexes, a similar compound with 2-mercapto-benzoic acid was also prepared." @default.
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• W1969919332 date "1990-03-01" @default.
• W1969919332 modified "2023-10-05" @default.
• W1969919332 title "A new synthetic pathway for tris-μ-disulfido-μ3-thio-triangulo-trimolybdenum(IV) complexes: preparation, characterization and structure of [Mo3S(S2)3(OOCCHSCH2COOH)3]2−" @default.
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• W1969919332 doi "https://doi.org/10.1016/s0020-1693(00)80523-x" @default.
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