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Structural characterization of rare intramolecularly (1,4-Te· · ·N) bonded diorganotellurides and their monomeric complexes with mercury(II) halides: metal assisted C-H· · ·X (Hg) interactions leading to supramolecular architecture

Chauhan, Ashok, Anamika,, Kumar, Arun, Singh, Puspendra, Srivastava, Ramesh, Butcher, Ray, Beckmann, Jens and Duthie, Andrew 2006, Structural characterization of rare intramolecularly (1,4-Te· · ·N) bonded diorganotellurides and their monomeric complexes with mercury(II) halides: metal assisted C-H· · ·X (Hg) interactions leading to supramolecular architecture, Journal of organometallic chemistry, vol. 691, no. 9, pp. 1954-1964, doi: 10.1016/j.jorganchem.2006.01.034.

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Title Structural characterization of rare intramolecularly (1,4-Te· · ·N) bonded diorganotellurides and their monomeric complexes with mercury(II) halides: metal assisted C-H· · ·X (Hg) interactions leading to supramolecular architecture
Author(s) Chauhan, Ashok
Anamika,
Kumar, Arun
Singh, Puspendra
Srivastava, Ramesh
Butcher, Ray
Beckmann, Jens
Duthie, Andrew
Journal name Journal of organometallic chemistry
Volume number 691
Issue number 9
Start page 1954
End page 1964
Publisher Elsevier B.V.
Place of publication Amsterdam, The Netherlands
Publication date 2006-03-03
ISSN 0022-328X
1872-8561
Keyword(s) intramolecular bonding
non-covalent interactions
mercury halide complex
tellurium ligands
crystal engineering
C–H X interaction
Summary Monomeric tellurides 4-RC6H4(SB)Te [SB = 2-(4,4'-N02C6H4CH=NC6H3-Me); R = H, 1a; Me,1b; OMe, 1c], which incidentally represent the first example of a telluride with 1,4-Te···N intramolecular interaction, have been prepared and characterized by solution and solid-state 125Te NMR, 13C NMR and X-ray crystallography. Interplay of weak C-H···O and C-H-··π{ interactions in the crystal lattice of 1b and1c are responsible for the formation of supramolecular motifs. These tellurides undergo expected oxidative addition reactions with halogens and interhalogens and also interact coordinatively with mercury(II) halides to give 1:2 complexes, HgX2[4-RC6H4(SB)Te]2 (X = CI, R = H, 2a; Me, 2b; OMe, 2c and X = Br, R = H, 3a; Me, 3b; and OMe, 3c) with no sign of Te-C bond cleavage, as has been reported for some 1,5-Te·· ·N(O) intramolecularly bonded tellurides. The complexes 2a and 3c are the first structurally characterized monomeric 1:2 adducts of mercury(II) halides with Te ligands. The 1,4-Te···N intramolecular interactions in the solid-state are retained in the complexes highlighting simultaneously the Lewis acid and base character of the Te(lI) atom. Packing of molecules in the crystal lattice of 2a
and 3c reveals that non-covalent C-H· . ·Cl/Br interactions involving metal-bound halogen atoms possess significant directionality and in
combination with coordinative covalent interactions may be of potential use in creating inorganic supramolecular synthons.
Language eng
DOI 10.1016/j.jorganchem.2006.01.034
Field of Research 039904 Organometallic Chemistry
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2006, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30009019

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