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Bidentate ligands tellurium complexes

Several four-coordinate selenium(U) complexes with bidentate ligands, all of which involve highly distorted square planar SeS4 or SeSe4 coordination spheres, and some tellurium analogues have been described.11... [Pg.305]

The bidentate ligands are the only polydentate ligands reported for tellurium. Indeed, no complexes of 1,1- or l,2-Te,Te or -Te,X (X = O, S, or Se) and several other analogues of common bidentate selenium ligands have been reported. [Pg.671]

Bis[dw-butyLphosphano] tellurium replaces norbornadiene, cycloheptatriene, acetonitrile, and dimethyl(methylene)oxosulfurane in chromium, molybdenum, and tungsten complexes. The P —Te compound acts as a bidentate ligand with the two phosphorus atoms coordinated to the metal atom1. The tetracarbonylchromium complex [R = CH(CH3)J can be recrystallized without loss of tellurium2. [Pg.29]

IR-spectral and conductivity data indicate that in chloroform solution diphenyl tellurium diperchlorate has monodentate, covalently bonded perchlorate groups. The complexes with one monodentatc ligand behave as 1 1 electrolytes1 in acetonitrile and acetone, while, the complexes with two monodentate ligands or one bidentate ligand behave as 1 2 electrolytes2. [Pg.619]

Tellurium coordination is seen in a series of acychc bidentate ligands that coordinate through Te N donor atoms or Te donor atoms An interesting series of adamantane-like cage complex cations that contain mercury(II) have been prepared and have the general formula [ j,-ER2(HgL)4] + (E = S, Se,orTe L = phosphine or arsine). These cations contain a variety of Hg-L bonds and have been characterized using heteronuclear NMR ( P, Te, Hg). [Pg.2595]

Similar complexes were obtained from bis[4-methoxyphenyl] tellurium diperchlorate including a 1 1 adduct with triphenylphosphane sulfide. Adducts with two moles of ligand per mole of diaryl tellurium diperchlorate could not be obtained even from reaction mixtures containing an excess of the ligand. However, telluracyclopentane diperchlorate formed 1 2 complexes with unidentate ligands and 1 1 complexes with bidentate ligands. ... [Pg.618]

In addition to complex halides and cyanides, the metals form many ammines. Organic compounds of nitrogen, arsenic, sulphur, selenium and tellurium arc other possible ligands. Many complexes with bidentate ligands are known. The various types of isomerism are common thus Pd(NH3)2Cl2 occurs as the pink [Pd (NH3)4] [PdCy and as the yellow cis and trans isomers ... [Pg.510]

Tellurium dihalide complexes L2TeX2 (L=ligand) tend to give planar 4-coordi-nated structures.2,3,9 From bidentate phosphine selenides dppmSe2 [Ph2P(=Se)CH2P(=Se)Ph2] and dppeSe2 two different kinds of 1 1 complexes... [Pg.856]

Complexes of Anionic Bidentate Sulfur, Selenium, or Tellurium Ligands... [Pg.545]


See other pages where Bidentate ligands tellurium complexes is mentioned: [Pg.212]    [Pg.542]    [Pg.60]    [Pg.353]    [Pg.203]    [Pg.75]    [Pg.3308]    [Pg.5415]    [Pg.3038]    [Pg.10]    [Pg.307]    [Pg.13]    [Pg.2146]   
See also in sourсe #XX -- [ Pg.305 ]




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Bidentate ligands

Bidentate ligands complexes

Bidentates

Complex bidentate

Tellurium complexes

Tellurium ligands

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