Diorganotin(IV) dithiocarbamate complexes as chromogenic sensors of anion binding

Quantitative Organic Analysis via Functional Groups By Dr Sidney Siggia Third edition Pp xii + 697 (New York and London: John Wiley and Sons, Inc, 1963) 145s

/pdf/quantitative-organic-analysis-aq4qnp4g8j.pdf

Quantitative Organic Analysis

O,O ′-(ortho-, meta-, or para-ditolyl) dithiophosphate ligands have been isolated as triethylammonium salts, (o-, m-or p-CH 3 C 6 H 4 O) 2 PS 2 HNEt 3 , by an auto-catalytic reaction of cresols with P 2 S 5 in the presence of Et3N in a 4:1:2 molar ratio in toluene under anhydrous conditions. These triethylammonium salts could be converted into sodium/ammonium salts, (o-, m-, or p-CH 3 C 6 H 4 O) 2 PS 2 Na/NH 4 , by their direct reaction with sodium metal in equimolar ratio or passing dry ammonia gas in toluene. These salts were characterized by elemental analyses (C, H, N, and S) and mass, IR, and NMR ( 1 H, 13 C, and 31 P) spectroscopic studies.

Synthesis and Characterization of O,O′-(o-, m-, or p-Ditolyl) Dithiophosphate Ligands

1.15 – 1,1-Dithiolato Ligands

Synthetic stratagem, characterization and biocidal applications of triorganotin(IV) complexes derived from hydrazide/hydrazone analogues

Chlorodiorganotin(IV)pyrazolinates of the type R2SnCl(C15H12N2O · X) [where C15H12N2O · X = 3(2′-Hydroxyphenyl)-5(4-X-phenyl)pyrazoline {where X = H (a); CH3 (b); OCH3 (c); Cl (d) and R = Me, Pr n and Ph}] have been synthesized by reaction of R2SnCl2 with the sodium salt of pyrazolines in 1 : 1 molar ratio, in anhydrous benzene. These newly synthesized derivatives have been characterized by elemental analysis (C, H, N, Cl and Sn), molecular weight measurement and spectral studies [IR and multinuclear NMR (1H, 13C and 119Sn)]. The bidentate behavior of the ligands was confirmed by IR, 1H and 13C NMR spectral data. Trigonal bipyramidal structure around tin(IV) for R2SnCl(C15H12N2O · X) is suggested. The free pyrazoline and some chlorodiorganotin(IV) pyrazolinates have been screened for their antibacterial and antifungal activities. Some chlorodiorganotin(IV) pyrazolinates exhibit higher antibacterial and antifungal effect than free pyrazoline and some antibiotics.

Synthesis, spectral and antimicrobial studies of chlorodiorganotin(IV)[3(2′-hydroxyphenyl)-5-(4-substitutedphenyl) pyrazolinates]

Complexes of the type Cp2,M[S2POGO[,2 [where Cp = C5H5, M=Ti or Zr; G = -C{CH3)CH2CH(CH3), -CH2C(CH3)2CH2-, -C(CH3)2C(CH3)2 and CH2CH2CH(CH3)-] were prepared by reaction of Cp2MCl2 and NH4[S2POGO] in 1:2 molar ratio in CH2Cl2. These newly synthesized compounds have been characterized by molecular weights, IR, 1H and 31P NMR spectral measurements. An octahedral geometry for both the metals have been proposed.

SYNTHESIS AND SPECTROSCOPIC STUDIES OF P,O′ ALKYLENE DITHIOPHOSPHATO COMPLEXES OF METALLOCENES; CP2ML2[M = Ti OR Zr]

Lanthanum(III) tris(dithiophosphates), [La{S2P(OR)2}3] (where R=-CH2CH2CH3 or -C6H5) and [La{S2PO2G}3] [where G=-C(CH3)2CH2CH(CH3)-, -CH2C(CH3)2CH2-, -C(CH3)2C(CH3)2- and -CH2CH2CH(CH3)-] were prepared in methanolic solutions of anhydrous LaCl3 and ammonium dithiophosphates. Addition complexes of the type [La{S2P(OR)2}3·nL] and [La{S2PO2G}3·nL] [where n = 1, L = N2C10H8 or N2C12H8 and n = 2, L = P(C6H5)3] were prepared by reaction of lanthanum(III) tris(dithiophosphates) and nitrogen or phosphorus donor bases in benzene. These newly synthesized derivatives have been characterized by elemental analyses, molecular weights, IR, 1H and 31P NMR spectral measurements. Coordination numbers of six and eight are suggested for lanthanum(III) in these derivatives.

Synthesis and Characterization of O,O′ Dialkyl and Alkylene Dithiophosphates of Lanthanum(III) and their Adducts with Nitrogen and Phosphorus Donor Bases

Tin(IV) pyrazolinates of the type (C|5H12N2OX)nSnCl4.n [where C15H12N2OX = 3(2'-Hydroxyphenyl)-5(4-X-phenyl)pyrazoline. {where X=H (a); CH3 (b); OCH3 (c); CI (d)}, η = 3, 4] have been synthesized by the reaction of SnCl4 with sodium salts of pyrazolines in 1:3 and 1:4 molar ratios, respectively, in anhydrous benzene. These newly synthesized derivatives have been characterized by elemental analysis (C, Η, N, CI and Sn), molecular weight measurement as well as spectral [ IR and multinuclear NMR ('Η, C and \"Sn)] studies. The bonding mode of pyrazoline with tin(IV) has been discussed. Coordination number of tin(IV) and tentative structure for complexes have been suggested.

3(2'-Hydroxyphenyl)-5-(4-Substituted Phenyl) Pyrazolinates of Tin (IV); Synthesis and Spectral Characterization

Complexes of the type [Ph4M]+[S2POGO]− (M[dbnd]Por As; G= -CMe2CH2CHMe-, CH2CMe2CH2− , -CH2CEt2CH2− , -CMe2CMe2− and -CH2CH2CHMe-) have been synthesized by the reactions of tetraphenyl phosphonium and arsonium chloride with ammonium alkylene dithiophosphates The derivatives have been chracterized by elemental analyses, molar conductance spectroscopic (IR, 1H and 31P NMR) studies

Umesh N. Tripathi

Papers

Synthesis, spectral and antimicrobial studies of chlorodiorganotin(IV)[3(2′-hydroxyphenyl)-5-(4-substitutedphenyl) pyrazolinates]

SYNTHESIS AND SPECTROSCOPIC STUDIES OF P,O′ ALKYLENE DITHIOPHOSPHATO COMPLEXES OF METALLOCENES; CP2ML2[M = Ti OR Zr]

Synthesis and Characterization of O,O′ Dialkyl and Alkylene Dithiophosphates of Lanthanum(III) and their Adducts with Nitrogen and Phosphorus Donor Bases

3(2'-Hydroxyphenyl)-5-(4-Substituted Phenyl) Pyrazolinates of Tin (IV); Synthesis and Spectral Characterization

Tetraphenyl phosphonium and arsonium salts of alkylene dithiophosphato moieties