Tertiary stibines containing aromatic heterocycles and their silver complexes: synthesis and X-ray structures

Vela, Javier; Sharma, Pankaj; Cabrera, Armando; Álvarez, C.; Rosas, N.; Hernández, Santiago Cortés; Toscano, Rubén A.

doi:10.1016/s0022-328x(01)01003-8

Cited by 26 publications

(19 citation statements)

References 22 publications

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“…Considering the vast number of ferrocene ligands and the unique stereoelectronic properties of the ferrocene framework and in view of the nonexistence of ferrocene bonded antimony in the literature and our interest in stibine ligands [13][14][15][16][17], some novel diphenylstibines containing ferrocenyl group having pendant arm [2-(Me 2 NCHR)] on ferrocenyl ring were synthesized and their structures were determined.…”

mentioning

confidence: 99%

First ferrocenylstibines and their molecular structures

Sharma¹,

Lopez²,

Ortéga

et al. 2006

Inorganic Chemistry Communications

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mentioning

confidence: 99%

First ferrocenylstibines and their molecular structures

Sharma¹,

Lopez²,

Ortéga

et al. 2006

Inorganic Chemistry Communications

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“…2-thienyl-stibine and -bismuthine. 12,13 In stibine 5, the average Sb-C bond distance is 2.121(3)Å; to the best of our knowledge, this is the shortest Sb-C distance reported so far for compounds of this type. This may be due to the electronegativity of chlorine atoms present in the ring and pπ -dπ bonding between antimony and the carbon atom of the ring.…”

Section: Methodsmentioning

confidence: 66%

“…10,11 The ligation properties of these types of stibine have also been reported previously with palladium and silver. 4,12 Apart from the above, there are very few reports available on the biological activity of organostibine(III) compounds, though a number of reports exist on the biological activities of organoantimony compounds where the pnictogen element is in oxidation state V. 14 In view of our interest in structural aspects of organoantimony and organobismuth compounds and the scant reports in the literature on stibines or bismuthines 15,16 containing C-heterocyclic thiophene and very few reports on the biological activities of stibines, we undertook this work.…”

Section: Introductionmentioning

confidence: 99%

Substituted thienyl stibines and bismuthines: syntheses, structures and cytotoxicity

Sharma¹,

Rosas²,

Cabrera³

et al. 2005

Appl. Organometal. Chem.

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New stibine and bismuthine substituted thienyl ring compounds, i.e. tris(3-methyl-2-thienyl)stibine (1), tris(3-methyl-2-thienyl)bismuthine (2), tris(3-thienyl)stibine (3), tris(3-thienyl)bismuthine (4) and tris(5-chloro-2-thienyl)stibine (5), have been synthesized and characterized by IR, mass, 1 H, 13 C, COSY, and HETCOR NMR spectroscopy. The metal centres in all compounds are pyramidal, and molecules in the stibine compound (1) and bismuthine compound (2) associate via Sb· · ·S or Bi· · ·S interactions to form supramolecular chains.The cytotoxicity of compounds 1 and 5 was determined. For compound 5, 85% of carcinogenic cell growth inhibition (U, K and H) was observed. Compound 1 shows a significant selectivity (>80%) for carcinogenic cell growth (K and U) inhibition. Both the compounds are highly toxic for the growth of normal lymphocytes with ∼95% lethality. Compound 1 is approximately 20 times more toxic than 5 against Artemia salina.

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“…Recently our group have reported some new stibines and bismuthines containing C-attached 2-thienyl, 2-furyl and 2-(N-methylpyrrolyl) group. X-ray structures and biological activities of these stibines and bismuthines have also been reported [5][6][7]. On the other hand, selenophen-2-yl substituted derivative of p-block metals/metalloids are very rare in literature, which is evident from the fact that a framework (including any metal-selenophenyl, benzoselenophenyl and their g-complexes) generates only 97 entries through a search of the Science Finder.…”

Section: Introductionmentioning

confidence: 99%