Synthesis of the new bidentate tellurium ligands, (p-EtOC6H4)Te-(CH2) n Te(C6H4OEt-p)(n-1,5,6,7,9, or 10)

Pathirana, H. M. K. K.; McWhinnie, William R.

doi:10.1039/dt9860002003

Cited by 25 publications

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“…X-ray-quality crystals of [(C 10 H 7 )Te(CH 2 ) 4 ] 2 [HgCl 4 ]•CH 2 Cl 2 (4•CH 2 Cl 2 ) were obtained by recrystallization from CH 2 Cl 2 at 0°C. Yield: 0.081 g Table 1 Crystal data and details of the structure determinations of (C 10 H 7 )Te(CH 2 ) 4 Te(C 10 H 7 ) (1), [(C 10 H 7 )Te(CH 2 ) 4 ]Br (2), [Cu 2 (µ-Br) 2 {µ-(C 10 H 7 )Te (CH 2 ) 4 Te(C 10 H 7 )} 2 ] (3a, 3b), [(C 10 H 7 )Te(CH 2 ) 4 ] 2 [HgCl 4 ]•CH 2 Cl 2 (4), and [(C 10 H 7 )Te(CH 2 ) 4 ]Cl (5 [(C 10 H 7 )Te(CH 2 ) 4 ]Cl (5). (C 10 H 7 )Te(CH 2 ) 4 Te(C 10 H 7 ) (1) (0.220 g, 0.389 mmol) was added into a flask containing CuCl 2 (0.035 g, 0.260 mmol) and 8 mL of dichloromethane.…”

Section: Ppmmentioning

confidence: 99%

“…This journal is © The The reaction of 1 with CuCl 2 afforded colourless crystals of [(C 10 H 7 )Te(CH 2 ) 4 ]Cl (5) and red crystals of (C 10 H 7 ) 2 Te 2 . The crystal structure of the latter is known.…”

Section: Dalton Transactions Papermentioning

confidence: 99%

“…Compounds [(C 10 H 7 )Te(CH 2 ) 4 ]X [X = Br (2), Cl (5)] are isomorphous. The molecular structure indicating the labeling of atoms is shown in Fig.…”

Section: Dalton Transactions Papermentioning

confidence: 99%

“…Hydrogen atoms have been omitted for clarity. Selected bond lengths (Å) and angles (°): 3a: Cu1-Br1 2.486(2), Cu1 a -Br1 2.5215(13), Cu1-Te1 2.5552 (12), Cu1 a -Te2 2.5958 (14), Te1-C1 2.177(7), Te1-C10 2.130(7), Te2-C4 2.159(7), Te2-C20 2.129(6), Br1-Cu1-Br1 a 103.29(4), Br1-Cu1-Te1 123.69(4), Br1 a -Cu1-Te1 106.26 (5), Br1 a -Cu1 a -Te2 107.76(3), Br1-Cu1 a -Te2 99.08(4), Te1-Cu1-Te2 a 113.36(4), Cu1-Te1-C1 100.75(19), Cu1-Te1-C10 105.66(19), Cu1 a -Te2-C20 106.89(16), C1-Te1-C10 98.0(3), C4-Te2-C20 98.6(2), C4-Te2-Cu1 a 98.06(18), Cu1-Br1-Cu1 a 76.71(4), C10-Te1-C1-C2 −18.7(5), Te1-C1-C2-C3 −68.1(6), C1-C2-C3-C4 −83.2(7), C2-C3-C4-Te2 +171.6(5), C3-C4-Te2-C20 +170.3(4); 3b: Cu1-Br1 2.4433(18), Cu1 a -Br1 2.5495(18), Cu1-Te1 2.5493(15), Cu1 a -Te2 2.5652(16), Te1-C1 2.188(10), Te1-C10 2.132(10), Te2-C4 2.144(11), Te2-C20 2.105 (12), Br1-Cu1-Br1 a 108.48(6), Br1-Cu1-Te1 118.43(6), Br1 a -Cu1-Te1 107.15(6), Br1-Cu1 a -Te2 92.60(6), Br1 a -Cu1 a -Te2 115.02(6), Te1-Cu1-Te2 a 111.62(6), Cu1-Te1-C1 112.3(3), Cu1-Te1-C10 105.1(3), Cu1 a -Te2-C20 107.8(3), C1-Te1-C10 90.0(4), C4-Te2-C20 99.4(3), C4-Te2-Cu1 a 99.1(3), Cu1-Br1-Cu1 a +71.52(6), C10-Te1-C1-C2 +178.5(8), Te1-C1-C2-C3 −67.8(11), C1-C2-C3-C4 −54.7(13), C2-C3-C4-Te2 +175.8(7), C3-C4-Te2-C20 +44.7 (9).…”

Section: Figmentioning

confidence: 99%

“…4a It is only with the chain lengths of n = 6-10 that the related reaction affords (4-EtOC 6 H 4 )Te(CH 2 ) n Te(4-EtOC 6 H 4 ). 5 In the case of X(CH 2 ) 5 X, both the ditelluroether and the telluronium halogenide are obtained. Furthermore, the treatment of RTe − with X(CH 2 ) 4 X (R = Me, Ph; X = Cl, Br) resulted in a mixture of R 2 Te and cyclic tetrahydrotellurophene, Te(CH 2 ) 4 , while that of Cl(CH 2 ) 5 Cl afforded a mixture of RTe(CH 2 ) 5 TeR, R 2 Te, and Te(CH 2 ) 4 .…”

Section: Introductionmentioning

confidence: 99%

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Synthesis, characterization, and ligand behaviour of a new ditelluroether (C₁₀H₇)Te(CH₂)₄Te(C₁₀H₇) and the concurrently formed ionic [(C₁₀H₇)Te(CH₂)₄]Br

et al. 2016

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The reaction of 1-naphthyl bromide with n-butyl lithium, elemental tellurium, and 1,4-dibromobutane in THF affords both (CH)Te(CH)Te(CH) (1) and [(CH)Te(CH)]Br (2) in good yields. 1 is preferentially formed at low temperatures and is a rare example of a structurally characterized ditelluroether in which the tellurium atoms are bridged by a hydrocarbon chain. In the solid state, 1 shows secondary bonding TeTe interactions, which connect the molecules into layers which are further linked to 3-dimensional frameworks by TeH hydrogen bonds. [(CH)Te(CH)]Br (2) is formed concurrently during the synthesis of 1 and is the main product, when the reaction is carried out at room temperature. The revPBE/def2-TZVPP calculations of the reaction profiles indicate that the formation of 2 is somewhat more favourable than that of 1. Furthermore, at room temperature the activation energy for the formation of 2 is lower than that of 1. At low temperatures the activation energy of the reaction leading to 1 is lower than that to 2, which is consistent with the synthetic observations. When 1 was treated with CuBr, [Cu(μ-Br){μ-(CH)Te(CH)Te(CH)}] (3) was formed. It crystallizes as two polymorphs (3a) and (3b) in which both the packing and the conformation of the ditelluroether ligands are different. The reaction of 1 with HgCl produces [(CH)Te(CH)][HgCl]·CHCl (4·CHCl) and that of 1 with CuCl affords [(CH)Te(CH)]Cl (5). 2 and 5 are isomorphous.

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Section: Ppmmentioning

confidence: 99%

Section: Dalton Transactions Papermentioning

confidence: 99%

“…Compounds [(C 10 H 7 )Te(CH 2 ) 4 ]X [X = Br (2), Cl (5)] are isomorphous. The molecular structure indicating the labeling of atoms is shown in Fig.…”

Section: Dalton Transactions Papermentioning

confidence: 99%

Section: Figmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synthesis, characterization, and ligand behaviour of a new ditelluroether (C₁₀H₇)Te(CH₂)₄Te(C₁₀H₇) and the concurrently formed ionic [(C₁₀H₇)Te(CH₂)₄]Br

et al. 2016

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ChemInform Abstract: Synthesis of the New Bidentate Tellurium Ligands, (p‐EtOC6H4)Te(CH2)nTe(C6H4OEt‐p) (n = 1, 5, 6, 7, 9, or 10).

Pathirana

McWhinnie

1987

ChemInform

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231ChemInform Abstract The reaction between NaTeAr, generated from the ditelluride (I), and CH2I2 or α,ω-dibromoalkanes gives the bis(tellurides) (II). Only in the case of n = 5 a cyclic telluronium salt (III) may be isolated by changing the experimental conditions. The new materials are characterized spectroscopically (IR, 1H, 13C NMR). Attempts to brominate some of the higher members of (II) lead to rupture of the Te-aryl bond and the isolation of (IV).

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Chapter 6

Barker¹

1990

Coordination Chemistry Reviews

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Synthesis of the new bidentate tellurium ligands, (p-EtOC6H4)Te-(CH2) n Te(C6H4OEt-p)(n-1,5,6,7,9, or 10)

Cited by 25 publications

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Synthesis, characterization, and ligand behaviour of a new ditelluroether (C₁₀H₇)Te(CH₂)₄Te(C₁₀H₇) and the concurrently formed ionic [(C₁₀H₇)Te(CH₂)₄]Br

Synthesis, characterization, and ligand behaviour of a new ditelluroether (C₁₀H₇)Te(CH₂)₄Te(C₁₀H₇) and the concurrently formed ionic [(C₁₀H₇)Te(CH₂)₄]Br

ChemInform Abstract: Synthesis of the New Bidentate Tellurium Ligands, (p‐EtOC6H4)Te(CH2)nTe(C6H4OEt‐p) (n = 1, 5, 6, 7, 9, or 10).

Chapter 6

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Synthesis of the new bidentate tellurium ligands, (p-EtOC6H4)Te-(CH2) n Te(C6H4OEt-p)(n-1,5,6,7,9, or 10)

Cited by 25 publications

References 0 publications

Synthesis, characterization, and ligand behaviour of a new ditelluroether (C10H7)Te(CH2)4Te(C10H7) and the concurrently formed ionic [(C10H7)Te(CH2)4]Br

Synthesis, characterization, and ligand behaviour of a new ditelluroether (C10H7)Te(CH2)4Te(C10H7) and the concurrently formed ionic [(C10H7)Te(CH2)4]Br

ChemInform Abstract: Synthesis of the New Bidentate Tellurium Ligands, (p‐EtOC6H4)Te(CH2)nTe(C6H4OEt‐p) (n = 1, 5, 6, 7, 9, or 10).

Chapter 6

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Synthesis, characterization, and ligand behaviour of a new ditelluroether (C₁₀H₇)Te(CH₂)₄Te(C₁₀H₇) and the concurrently formed ionic [(C₁₀H₇)Te(CH₂)₄]Br

Synthesis, characterization, and ligand behaviour of a new ditelluroether (C₁₀H₇)Te(CH₂)₄Te(C₁₀H₇) and the concurrently formed ionic [(C₁₀H₇)Te(CH₂)₄]Br