Syntheses and structures of diorgano(halo- orpseudohalo-)(1,3-dithiole-2-thione-4,5-dithiolato)-stannates (1-), [Q][R2SnX(dmit)] (Q=onium cation; X=halide orpseudohalide)

Aupers, John H.; Chohan, Zahid H.; Cox, Philip; Doidge-Harrison, Solange M.S.V.; Howie, Alan; Khan, Abdullah; Spencer, Gavin M.; Wardell, Jámes L.

doi:10.1016/s0277-5387(98)00254-x

Cited by 14 publications

(7 citation statements)

References 17 publications

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“…An octahedral geometry is proposed for this complex based on its analytical, conductance, and spectral data. is is further supported by its diamagnetic nature and absence of d-d band, due to its complete d 10 electronic configuration [9,24,25]. e absence of any band below 10,000 cm −1 eliminates the possibility of a tetrahedral environment in these complexes [26].…”

Section: Electronic Spectral Analysismentioning

confidence: 99%

Synthesis, Characterization and Antibacterial Activity of Schiff Base, 4-Chloro-2-{(E)-[(4-Fluorophenyl)imino]methyl}phenol Metal (II) Complexes

Ommenya

Nyawade

Andala

et al. 2020

Journal of Chemistry

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A new series of Mn (II), Co (II), Ni (II), Cu (II), and Zn (II) complexes of the Schiff base ligand, 4-chloro-2-{(E)-[(4-fluorophenyl)imino]methyl}phenol (C13H9ClFNO), was synthesized in a methanolic medium. The Schiff base was derived from the condensation reaction of 5-chlorosalicylaldehyde and 4-fluoroaniline at room temperature. Elemental analysis, FT-IR, UV-Vis, and NMR spectral data, molar conductance measurements, and melting points were used to characterize the Schiff base and the metal complexes. From the elemental analysis data, the metal complexes formed had the general formulae [M(L)2(H2O)2], where L = Schiff base ligand (C13H9ClFNO) and M = Mn, Co, Ni, Cu, and Zn. On the basis of FT-IR, electronic spectra, and NMR data, “O” and “N” donor atoms of the Schiff base ligand participated in coordination with the metal (II) ions, and thus, a six coordinated octahedral geometry for all these complexes was proposed. Molar conductance studies on the complexes indicated they were nonelectrolytic in nature. The Schiff base ligand and its metal (II) complexes were tested in vitro to evaluate their bactericidal activity against Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa) and Gram-positive bacteria (Bacillus subtilis and Staphylococcus typhi) using the disc diffusion method. The antibacterial evaluation results revealed that the metal (II) complexes exhibited higher antibacterial activity than the free Schiff base ligand.

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Section: Electronic Spectral Analysismentioning

confidence: 99%

Synthesis, Characterization and Antibacterial Activity of Schiff Base, 4-Chloro-2-{(E)-[(4-Fluorophenyl)imino]methyl}phenol Metal (II) Complexes

Ommenya

Nyawade

Andala

et al. 2020

Journal of Chemistry

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“…The shift is a consequence of an electron density transfer from the ligand to the acceptor, which is consistent with that reported in the literature. 10,16 The 119 Sn NMR value for 1 at −179.6 ppm in solution suggests that the Sn-N interaction probably survives in solution and that a five-coordinate species is maintained. Five-coordinate ClPh 2 SnXY compounds (X and Y are electronegative groups) in solution have an 119 Sn NMR value in the region −140 to −180 ppm, depending on the groups …”

Section: Nmr Datamentioning

confidence: 99%

“…In addition, there exists a coordination interaction between tin and nitrogen atoms. The Sn-N bond length (Sn(1)-N(1), 2.595(7)Å and Sn(2)-N(3), 2.580(6)Å) is consistent with that of [2-(Me 2 NCH 2 )C 6 H 4 ]SnPh 2 Cl (2.519(2)Å), 22 it is longer than that of Ph 2 SnCl(MBT) (2.405(7)Å), 17 but it is much shorter than the sum of the van der Waals radii of tin and nitrogen, 3.74Å, 23 thus providing four-membered chelate rings with bite angles of 62.90 (16) • for N(1)-Sn(1)-S(2) and the range of the normal covalent radii (2.37-2.60Å). 24 The Sn-S bond length (Sn(1)-S(2), 2.444(2)Å and Sn(2)-S(4), 2.446(3)Å) is well within the range of 2.41 to 2.48Å reported of triphenyltin heteroarenethiolates, 25 it is shorter than that of Ph 2 SnCl(MBT) (2.485(22)Å) 17 and it is almost equal to that of Ar 3 Sn[S (C 5 H 4 N)].…”

Section: Structure Of [Ph 2 Sncl(mnbt)] (1)mentioning

confidence: 99%

Synthesis, properties and crystal structural characterization of diorganotin(IV) derivatives of 2‐mercapto‐6‐nitrobenzothiazole

Jiang

Zhang

2003

Applied Organom Chemis

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The diorganotin(IV) dichlorides R 2 SnCl 2 (R: Ph, PhCH 2 or n-Bu) react with 2-mercapto-6-nitrobenzothiazole (MNBT) in benzene to give [Ph 2 SnCl(MNBT)] (1), [(PhCH 2 ) 2 Sn(MNBT) 2 ] (2) and [(n-Bu) 2 Sn(MNBT) 2 ] (3). The three complexes have been characterized by elemental analysis and IR, 1 H, 13 C and 119 Sn NMR spectroscopies. X-ray studies of the crystal structures of 1, 2 and 3 show the following. The tin environment for complex 1 is distorted cis-trigonal bipyramid with chlorine and nitrogen atoms in apical positions. The structure of complex 2 is a distorted octahedron with two benzyl groups in the axial sites. The geometry at the tin atom of complex 3 is that of an irregular octahedron. Interestingly, intra-molecular non-bonded Cl· · ·S interactions and S· · ·S interaction were recognized in the crystallographic structures of 1 and 3 respectively. As a result, complex 1 is a polymer and complex 3 is a dimer.

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“…While generally less frequently studied, emphasis on main group dmit complexes has been concentrated on structure determinations, with tin compounds being in the vanguard of these studies. Structures of various tin-dmit compounds have been reported, including those of [Q] 2 [Sn-(dmit) 3 ] (Q = monovalent cation) [4,5], [Q] 2 [X 2 Sn(dmit) 2 ] (X = Br or I) [6], [Q][RSn(dmit) 2 ] [7,8], R 2 Sn(dmit) [7,9,10] and [Q][R 2 SnX(dmit) [8,11] (R = alkyl or aryl). In all these tin compounds, the dmit ligand is acting as a chelating group.…”

Section: Introductionmentioning

confidence: 99%

4,5-Bis[(triorganotin)thiolato]-1,3-dithiole-2-thione, (R3Sn)2(dmit), 4,5-bis[(triorganotin)thiolato]-1,3-dithiole-2-one, (R3Sn)2(dmio), compounds: Crystal structures of (cyclohexyl3Sn)2(dmio), (Ph3Sn)2(dmit) and (Ph3Sn)2(dmio)

Bordinhão

Comerlato

Ferreira

et al. 2006

Journal of Organometallic Chemistry

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Syntheses and structures of diorgano(halo- orpseudohalo-)(1,3-dithiole-2-thione-4,5-dithiolato)-stannates (1-), [Q][R2SnX(dmit)] (Q=onium cation; X=halide orpseudohalide)

Cited by 14 publications

References 17 publications

Synthesis, Characterization and Antibacterial Activity of Schiff Base, 4-Chloro-2-{(E)-[(4-Fluorophenyl)imino]methyl}phenol Metal (II) Complexes

Synthesis, Characterization and Antibacterial Activity of Schiff Base, 4-Chloro-2-{(E)-[(4-Fluorophenyl)imino]methyl}phenol Metal (II) Complexes

Synthesis, properties and crystal structural characterization of diorganotin(IV) derivatives of 2‐mercapto‐6‐nitrobenzothiazole

4,5-Bis[(triorganotin)thiolato]-1,3-dithiole-2-thione, (R3Sn)2(dmit), 4,5-bis[(triorganotin)thiolato]-1,3-dithiole-2-one, (R3Sn)2(dmio), compounds: Crystal structures of (cyclohexyl3Sn)2(dmio), (Ph3Sn)2(dmit) and (Ph3Sn)2(dmio)

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