Triphenyltellurium(IV) dithiocarbamates, xanthates, and dithiophosphates

Singh, Ajai K.; Basumatary, J. K.

doi:10.1016/0022-328x(89)85332-x

Cited by 17 publications

(5 citation statements)

References 19 publications

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“…The NMR spectra of the mono(dithiocarbamate) complexes are generally difficult to interpret due to ligand exchange reactions, metal-centered rearrangements and reductive elimination reactions occurring quite rapidly on the NMR time scale (358)(359)(360): The occurrence of these processes indicates that the dithiocarbamate is only weakly bound to Te. Furthermore, conductimetry measurements show the triphenyl complexes [TePh 3 (S 2 CNR 2 )] are close to 1:1 electrolytes, again indicative of the dithiocarbamate being only weakly associated with the metal moiety in solution (367,369).…”

Section: Mono(dithiocarbamate) Complexesmentioning

confidence: 99%

“…With the exception of the [TeX 2 (aryl)(S 2 CNEt 2 )] complexes (X ¼ Br or I; aryl ¼ C 6 H 5 or p-MeOC 6 H 4 ) (370), the molecular structures of the mono (dithiocarbamate) species [TeR 3-n X n (S 2 CNR 2 )] (R ¼ alkyl or aryl, X ¼ Cl, Br or I, and n ¼ 0, 1, 2, or 3) (323,355,(358)(359)(360)(366)(367)(368)(369)(370)(371)(372)(373)(374) are all similar.…”

Section: Mono(dithiocarbamate) Complexesmentioning

confidence: 99%

See 1 more Smart Citation

Main Group Dithiocarbamate Complexes

Heard¹

2005

Progress in Inorganic Chemistry

195

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Bismuth / 29 1. Homoleptic Complexes / 29 2. Nonhomoleptic Bis(dithiocarbamate) Complexes / 32 3. Mono(dithiocarbamate) Complexes / 36 4. Antimony(V) Complexes / 39 5. Antimony-121 Mo ¨ssbauer Spectroscopy / 39 VI. GROUP 16 (VI A) 40 A. Homoleptic and Mixed Bidentate Ligand Complexes / 40 B. Nonhomoleptic Tellurium(II) Complexes / 44 C. Nonhomoleptic Tellurium(IV) Complexes / 47 1. Tris(dithiocarbamate) Complexes / 47 2. Bis(dithiocarbamate) Complexes / 49 3. Mono(dithiocarbamate) Complexes / 51 4. Tellurium-125 NMR and Mo ¨ssbauer Spectroscopy / 53

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Section: Mono(dithiocarbamate) Complexesmentioning

confidence: 99%

Section: Mono(dithiocarbamate) Complexesmentioning

confidence: 99%

Main Group Dithiocarbamate Complexes

Heard¹

2005

Progress in Inorganic Chemistry

195

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“…Several reports on organotellurium(IV) compounds with 1,1-dithio ligands have appeared on O -alkyl dithiocarbonates, − N , N -dialkyl dithiocarbamates, − and O , O -dialkyl and alkylene dithiophosphates, − ,− but reports on related halo derivatives of the type Me 2 TeXL have been limited to a few N , N -dialkyl dithiocarbamates, along with more recent reports of Me 2 TeX[S 2 COR] and Me 2 TeX[S 2 CN(CH) n CH 2 ]. , In attempts to prepare mixed ligand complexes including Me 2 Te[S 2 CNR 2 ][S 2 COR], and the halo derivatives were formed as intermediates; several of these have now been isolated. The synthesis and characterization are reported of O , O -alkylene dithiophosphate and dithiocarbamate derivatives of halodimethyltellurium(IV), where X = Cl, Br, I, G = −CMe 2 CMe 2 −, −CH 2 CMe 2 CH 2 −, and −CH 2 CEt 2 CH 2 −, and Me 2 TeX[S 2 CNR 2 ], where R = Me, Et.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Spectroscopic Studies, and Structural Studies of O,O-Alkylene Dithiophosphate and N,N-Dimethyl and Diethyl Dithiocarbamate Derivatives of Halodimethyltellurium(IV)

et al. 1999

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O,O-Alkylene dithiophosphate derivatives of halodimethyltellurium(IV) of the type where X = Cl, Br, I, G = −CMe2CMe2−, −CH2CMe2CH2−, and −CH2CEt2CH2−, were synthesized in 80−90% yields by the reaction in dichloromethane of the appropriate dimethyltellurium dihalide with equimolar amounts of the salt of one of the dithiophosphoric acids. Similarly were prepared related N,N-dimethyl and N,N-diethyl dithiocarbamates of the type Me2TeX[S2CNR2], where R = Me and Et. The compounds were characterized by elemental analyses, 1H, 13C, 31P, and 125Te NMR, infrared and Raman spectroscopy, and crystal structures when possible. The crystal structures of (1), (3), Me2TeCl[S2CNEt2] (10), Me2TeBr[S2CNEt2] (13), Me2TeI[S2CNEt2] (14), Me2TeBr[S2COMe] (15), and Me2TeBr2 (16) are reported. The immediate environment about tellurium in all molecules is essentially that of a sawhorse structure in which the lone pair is apparently stereochemically active and occupying an equatorial position in a distorted trigonal bipyramid. When secondary intra- and intermolecular interactions are included, alternative descriptions of these solid-state structures may be more appropriate.

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“…The importance of supramolecular associations in molecular compounds of tellurium complexes with sulfur ligands has been recently reviewed . Several reports have appeared on organotellurium(IV) derivatives with 1,1-dithio ligands including O -alkyl dithiocarbonates − and N , N -dialkyl dithiocarbamates. − We recently reported on dimethyltellurium derivatives of monothio ligands including pyrrolidyl and piperidyl monothioformate derivatives, but unfortunately were only able to obtain structural information on ethyl derivatives. We now report on the synthesis and spectroscopic characterization of dimethyltellurium(IV) pyrrolidyl and piperidyl dithioformates, Me 2 Te[S 2 CN(CH 2 ) n CH 2 ] 2 and Me 2 TeX[S 2 CN(CH 2 ) n CH 2 ], where n = 3, 4 and X = Cl, Br, and I. X-ray crystal structures are reported for Me 2 Te[S 2 CN(CH 2 ) 3 CH 2 ] 2 (1) , Me 2 Te[S 2 CN(CH 2 ) 4 CH 2 ] 2 (2) , Me 2 Te{[S 2 CN(CH 2 ) 3 CH 2 ][S 2 CN(CH 2 ) 4 CH 2 ]} (3) , Me 2 TeCl[S 2 CN(CH 2 ) 3 CH 2 ] (4) , Me 2 TeBr[S 2 CN(CH 2 ) 3 CH 2 ] (5) , Me 2 TeI[S 2 CN(CH 2 ) 3 CH 2 ] (6) , Me 2 TeCl[S 2 CN(CH 2 ) 4 CH 2 ] (7) , and Me 2 TeI[S 2 CN(CH 2 ) 4 CH 2 ] (9) .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Spectroscopic Characterization of Pyrrolidyl and Piperidyl Dithioformate Derivatives of Dimethyltellurium(IV) Compounds. Crystal Structures of Me₂Te[S₂CN(CH₂)₃CH₂]₂, Me₂Te[S₂CN(CH₂)₄CH₂]₂, Me₂Te{[S₂CN(CH₂)₃CH₂][S₂CN(CH₂)₄CH₂]}, Me₂TeCl[S₂CN(CH<

Drake

Yang

1997

Inorg. Chem.

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Dimethylbis(pyrrolidyl and piperidyl dithioformato)tellurium(IV) compounds and the corresponding halodimethyl compounds, Me(2)TeX[S(2)CN(CH(2))(n)()CH(2)], where n = 3, 4 and X = Cl, Br, and I, have been prepared. The compounds were characterized by elemental analysis and IR, Raman, and multinuclear NMR spectroscopies, including some variable temperature studies. The following crystallize as monoclinic in space group P2(1)/c (No. 14). Me(2)Te[S(2)CN(CH(2))(3)CH(2)](2) (1): a = 6.38(1) Å, b = 18.902(7) Å, c = 14.672(6) Å, beta = 97.73(6) degrees V = 1752(2) Å(3), Z = 4, R = 0.0636, R(w) = 0.0642. Me(2)Te{[S(2)CN(CH(2))(3)CH(2)][S(2)CN(CH(2))(4)(CH(2))]} (3): a = 6.55(1) Å, b = 19.716(6) Å, c = 14.900(9) Å, beta = 95.27(8) degrees, V = 1928(3) Å(3), Z = 4, R = 0.0618, R(w) = 0.0511. Me(2)TeCl[S(2)CN(CH(2))(3)CH(2)] (4): a = 9.952(3) Å, b = 6.386(3) Å, c = 18.834(3) Å, beta = 95.32(2) degrees, V = 1191.7(6) Å(3), Z = 4, R = 0.0358, R(w) = 0.0314. Me(2)TeBr[S(2)CN(CH(2))(3)CH(2)] (5): a = 10.085(4) Å, b = 6.446(4) Å, c = 19.020(5) Å, beta = 95.08(3) degrees, V = 1231.7(8) Å(3), Z = 4, R = 0.0559, R(w) = 0.0469. Me(2)TeCl[S(2)CN(CH(2))(4)CH(2)] (7) is P2(1)/a (No. 14) with a = 9.756(2) Å, b = 11.242(2) Å, c = 12.028(3) Å, beta = 92.26(3) degrees, V = 1318.2(7) Å(3), Z = 4, R = 0.0438, R(w) = 0.0442, and Me(2)TeI[S(2)CN(CH(2))(4)CH(2)] (9) is P2(1) (No. 4) with a = 6.019(3) Å, b = 8.986(4) Å, c = 13.012(2) Å, beta = 100.61(3) degrees, V = 691.7(6) Å(3), Z = 2, R = 0.0364, R(w) = 0.0305. Me(2)TeI[S(2)CN(CH(2))(3)CH(2)] (6) is orthorhombic in Pbca (No. 61) with a = 13.951(6) Å, b = 19.849(8) Å, c = 9.261(4) Å, V = 2564(1) Å(3), Z = 8, R = 0.0392, R(w) = 0.0326, and Me(2)Te[S(2)CN(CH(2))(4)CH(2)](2) (2) is triclinic in P&onemacr; (No. 2) with a = 9.624(2) Å, b = 12.904(3) Å, c = 9.008(2) Å, alpha = 98.29(2) degrees, beta = 111.19(2) degrees, gamma = 99.64(2) degrees, V = 1002.5(4) Å(3), Z = 2, R = 0.0504, R(w) = 0.0454. The immediate environment about Te is that of a sawhorse structure in which the lone pair is apparently stereochemically active and occupying an equatorial position in a distorted trigonal bipyramid. The second sulfur atom appears also to be in the coordination sphere resulting in the following distorted arrangements about Te: pseudo pentagonal bipyramidal in 1 and 3, octahedral in 2, and square pyramidal in 5, 6, 7, and 9.

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Triphenyltellurium(IV) dithiocarbamates, xanthates, and dithiophosphates

Cited by 17 publications

References 19 publications

Main Group Dithiocarbamate Complexes

Main Group Dithiocarbamate Complexes

Synthesis, Spectroscopic Studies, and Structural Studies of O,O-Alkylene Dithiophosphate and N,N-Dimethyl and Diethyl Dithiocarbamate Derivatives of Halodimethyltellurium(IV)

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Triphenyltellurium(IV) dithiocarbamates, xanthates, and dithiophosphates

Cited by 17 publications

References 19 publications

Main Group Dithiocarbamate Complexes

Main Group Dithiocarbamate Complexes

Synthesis, Spectroscopic Studies, and Structural Studies of O,O-Alkylene Dithiophosphate and N,N-Dimethyl and Diethyl Dithiocarbamate Derivatives of Halodimethyltellurium(IV)

Synthesis and Spectroscopic Characterization of Pyrrolidyl and Piperidyl Dithioformate Derivatives of Dimethyltellurium(IV) Compounds. Crystal Structures of Me2Te[S2CN(CH2)3CH2]2, Me2Te[S2CN(CH2)4CH2]2, Me2Te{[S2CN(CH2)3CH2][S2CN(CH2)4CH2]}, Me2TeCl[S2CN(CH<

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