1996
DOI: 10.1002/anie.199622151
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Synthesis and Structure of the Nanoclusters [Hg32Se14(SePh)36], [Cd32Se14(SePh)36‐(PPh3)4],[P(Et)2(Ph)C4H8OSiMe3]5‐ [Cd18I17(PSiMe3)12], and [N(Et)3C4H8OSiMe3]5[Cd18I17(PSiMe3)12]

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Cited by 106 publications
(78 citation statements)
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“…[2] The thermolysis of these compounds has been investigated in detail. [5] 34 ], the phosphine ligands dissociate via multistage processes (as determined via thermogravimetric analysis) at temperatures ranging from 60 8C to 200 8C. Although the specific temperature at which complete dissociation occurs depends on the experimental conditions (inert gas flow or vacuum), the nature of the phosphine ligand and the nuclearity of the nanocluster, thermolysis at 150 8C of each of these samples leads to the formation of monodisperse, nanostructured a-Cu 2 Se with crystallite sizes of approximately 15 nm, as determined via transmission electron microscopy.…”
Section: Research Newsmentioning
confidence: 97%
See 1 more Smart Citation
“…[2] The thermolysis of these compounds has been investigated in detail. [5] 34 ], the phosphine ligands dissociate via multistage processes (as determined via thermogravimetric analysis) at temperatures ranging from 60 8C to 200 8C. Although the specific temperature at which complete dissociation occurs depends on the experimental conditions (inert gas flow or vacuum), the nature of the phosphine ligand and the nuclearity of the nanocluster, thermolysis at 150 8C of each of these samples leads to the formation of monodisperse, nanostructured a-Cu 2 Se with crystallite sizes of approximately 15 nm, as determined via transmission electron microscopy.…”
Section: Research Newsmentioning
confidence: 97%
“…[32] The reaction chemistry of the silylated reagents E(SiMe 3 ) 2 and PhESiMe 3 is now a proven entry into 12-16 nanocluster materials, and can be used for the preparation of the heavier chalcogen and group 12 metal congeners including [Cd 10 Se 4 -(SePh) 12 (PPr 3 ) 4 ], [33] [Cd 32 Se 14 (SePh) 36 (PPh 3 ) 4 ], [34] [Hg 10 Te 4 (TePh) 12 (PR 3 ) 4 ], [35] [Hg 10 Se 4 (SePh) 12 4 ]. [36] Furthermore, these low temperature synthetic methods used to prepare the nanoclusters allow a systematic investigation of the change in photophysical properties as a function of group 12 metal or chalcogen.…”
Section: Silver Sulfide Nanoclustersmentioning
confidence: 99%
“…Due to the larger covalent radii of the tellurium atoms the cluster core is slightly larger in comparison with 1 as indicated by edge lengths of 1289.3Ϫ1298.7 pm of the tetrahedron formed by the four phosphane atoms and a diameter of 840 pm taken from the mercury atom at the vertex of the tetrahedron to the center of the opposite tetrahedral face. The HgϪTePh bond lengths range from 278.02Ϫ291.11 (11) (Figure 2). If 2 is dissolved in benzene/toluene at 5°C the formation of an orange solution can be observed from which 3 crystallizes within a few days (Scheme 2).…”
Section: Synthesis and Structurementioning
confidence: 98%
“…The cluster core, which is comprised of four adamantane cages each of which is formed by three tellurium, three selenium and four mercury atoms, is a macrotetrahedral fragment of the sphalerite structure, which is also found in HgSe and HgTe. [11] The resultant tetrahedron, with the four phosphane atoms in the apex positions, has edge lengths of 1240.6Ϫ1284.2 pm and has a diameter of 820 pm (from the mercury atom at the vertex of the tetrahedron to the center of the opposite tetrahedral face).…”
Section: Synthesis and Structurementioning
confidence: 99%
“…The solvent was removed in vacuo from the colorless filtrate to afford 3a as a pale yellow oil in 75 % yield (0.37 g). 1 H NMR (C 6 Synthesis of 3-Phenyl-1-trimethylsilyltelluro-2-propyne (3c): A freshly prepared sample of LiTeSiMe 3 (2.34 mmol) was dissolved in pentane (50 mL) to give a beige solution due to slight decomposition of the LiTeSiMe 3 . The flask was covered with aluminum foil and cooled to -78°C.…”
Section: Synthesis Of 3-phenyl-1-trimethylsilylthio-2-propyne (3a)mentioning
confidence: 99%