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Journal ArticleDOI

Isothiocyanatooxomolybdenum(V) dithiocarbamates

01 Aug 1984-Transition Metal Chemistry (Kluwer Academic Publishers)-Vol. 9, Iss: 8, pp 290-292
TL;DR: In this article, Isothiocyanatooxomolybdenum (V) complexes, [MoO-(NCS)(R2dtc)2] (R=ethyl or dibenzyl; R2=piperidinyl or 4-morpholinyl) have been prepared and characterized.
Abstract: Isothiocyanatooxomolybdenum(V) complexes, [MoO-(NCS)(R2dtc)2] (R=ethyl or dibenzyl; R2=piperidinyl or 4-morpholinyl) have been prepared and characterized. The i.r. spectral bands at 2020 cm−1 are assigned tov(CN) which suggest that thiocyanate coordinates through nitrogen. The bands at 930, 1500 and 960 cm−1 are attributed tov(MoO),v(CN) andv(CS), respectively, and indicate the presence of the MoO3+ moiety and a bidentate dithiocarbamate group. The e.p.r. and electronic spectral data together with magnetic moment values (1.69 B.M.) suggest the presence of one unpaired electron. The complexes are monomeric. The thermal decomposition behaviour of the complexes is reported.
Citations
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Journal ArticleDOI
TL;DR: In this article, eight new bidentate Schiff bases were synthesized by reaction of 2-aminobenzothiazole or 2-amino-4-phenyl-5phenylazothiazoles with 2-hydroxy-1-naphthaldehyde or substituted (2-hexathiocyanatochromium(III) benzaldehyde), and they were characterized on the basis of elemental analysis, molecular mass determination, conductance, magnetic measurements, infrared and UV-visible spectral studies.
Abstract: Eight new bidentate Schiff bases were synthesized by reaction of 2-aminobenzothiazole or 2-amino-4-phenyl-5-phenylazothiazole with 2-hydroxy-1-naphthaldehyde or substituted (2-hydroxy-, 4-hydroxy-, 3-methoxy-4-hydroxy-) benzaldehyde. The reaction products of these Schiff bases with potassium hexathiocyanatochromium(III) were of the type: K[Cr(NCS)2(B1)2] and K[Cr(NCS)4(B2)], where HB1 [dbnd] N, O donor monobasic bidentate Schiff bases and B2 [dbnd] N, N donor bidentate Schiff bases. They were characterized on the basis of elemental analysis, molecular mass determination, conductance, magnetic measurements, infrared and UV-visible spectral studies. The complexes were of octahedral structure. Different ligand field parameters 10Dq, B, β35 and C.F.S.E. were calculated and discussed. The Schiff bases and the complexes were also screened for microbiological activity against the fungi Aspergillus niger, Alternaria alternata and bacterium Escherichia coli. The mixed ligand complexes were found more acti...

7 citations

Journal ArticleDOI

4 citations

References
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Journal ArticleDOI
TL;DR: The biological role of molybdenum, biophysical studies of the molybordenum atoms, and aspects of coordination chemistry that bear on the understanding of Molybdo-enzymes are discussed in this paper.
Abstract: The biological role of molybdenum, biophysical studies of the molybdenum atoms in molybdo-enzymes, and aspects of coordination chemistry that bear on the understanding of molybdo-enzymes.

28 citations

Journal ArticleDOI
TL;DR: The complexes OMoX 2 L 2 (L = S 2 )CNEt 2 ) 2 and OMoXL 2 (X = Cl, Br) as mentioned in this paper showed the lack of atom transfer ability of tungsten(VI) relative to its molybdenum analog.

10 citations

Journal ArticleDOI
TL;DR: In this article, a number of complex salts containing the [MoO(NCS) 5 ] 2− and [WO[NCS] 2− anions have been synthesized.

10 citations