Experimental and Theoretical Investigations of the Redox Behavior of the Heterodichalcogenido Ligands [(EPiPr2)(TePiPr2)N]− (E = S, Se): Cyclic Cations and Acyclic Dichalcogenide Dimers
Robertson, S., Chivers, T., & Tuononen, H. (2008). Experimental and Theoretical Investigations of the Redox Behavior of the Heterodichalcogenido Ligands [(EPiPr2)(TePiPr2)N]− (E = S, Se): Cyclic Cations and Acyclic Dichalcogenide Dimers. Inorganic Chemistry, 47(22), 10634-10643. https://doi.org/10.1021/ic801384c
Published inInorganic Chemistry
© 2008 American Chemical Society. This is a final draft version of an article whose final and definitive form has been published by ACS. Published in this repository with the kind permission of the publisher.
The two-electron oxidation of the lithium salts of the heterodichalcogenidoimidodiphosphinate anions [(EPiPr2)(TePiPr2)N]− (1a, E = S; 1b, E = Se) with iodine yields cyclic cations [(EPiPr2)(TePiPr2)N]+ as their iodide salts [(SPiPr2)(TePiPr2)N]I (2a) and [(SePiPr2)(TePiPr2)N]I (2b). The five-membered rings in 2a and 2b both display an elongated E−Te bond as a consequence of an interaction between tellurium and the iodide anion. One-electron reduction of 2a and 2b with cobaltocene produces the neutral dimers (EPiPr2NPiPr2Te−)2 (3a, E = S; 3b, E = Se), which are connected exclusively through a Te−Te bond. Two-electron reduction of 2a and 2b with 2 equiv of cobaltocene regenerates the corresponding dichalcogenidoimidodiphosphinate anions as ion-separated cobaltocenium salts Cp2Co[(EPiPr2)(TePiPr2)N] (4a, E = S; 4b, E = Se). The ditellurido analogue Cp2Co[(TePiPr2)2N] (4c) has been prepared in the same manner for comparison. Density functional theory calculations reveal that the preferential interaction of the iodide anion with tellurium is determined by the polarization of the lowest unoccupied molecular orbital [σ*(E−Te)] of the cations in 2a and 2b toward tellurium and that the formation of the dimers 3a and 3b with a central Te−Te linkage is energetically more favorable than the structural isomers with either E−Te or E−E bonds. Compounds 2a, 2b, 3a, 3b, 4a, 4b, and 4c have been characterized in solution by multinuclear NMR spectroscopy and in the solid state by X-ray crystallography. ...
Publication in research information system
MetadataShow full item record
Showing items with similar title or keywords.
Experimental and Theoretical Investigations of the Contact Ion Pairs Formed by Reactions of the Anions [(EPR2)2N]− (R = iPr, tBu; E = S, Se) with the Cations [(TePR2)2N]+ (R = iPr, tBu) Robertson, Stuart; Chivers, Tristram; Tuononen, Heikki (ACS, 2009)Reactions of the sodium salts [(EPR2)2N]Na(TMEDA) (R = iPr, tBu; E = S, Se) with the iodide salts [(TePR2)2N]I (R = iPr, tBu) in toluene produce the mixed-chalcogen systems [(EPR2)2N][(TePR2)2N] (6b, E = Se, R = tBu; 6c, ...
Jia, Fei; Schröder, Hendrik V.; Yang, Liu-Pan; von Essen, Carolina; Sobottka, Sebastian; Sarkar, Biprajit; Rissanen, Kari; Jiang, Wei; Schalley, Christoph A. (American Chemical Society, 2020)“Naphthocage”, a naphthalene-based organic cage, reveals very strong binding (up to 1010 M–1) to aromatic (di)cationic guests, i.e., the tetrathiafulvalene mono- and dication and methyl viologen. Intercalation of the guests ...
Synthesis, Spectroscopic, and Structural Investigation of the Cyclic [N(PR2E)2]+ Cations (E = Se, Te; R = iPr, Ph): the Effect of Anion and R-Group Exchange Konu, Jari; Chivers, Tristram; Tuononen, Heikki (ACS, 2006)Two-electron oxidation of the [N(PiPr2E)2]- anion with iodine produces the cyclic [N(PiPr2E)2]+ (E = Se, Te) cations, which exhibit long E−E bonds in the iodide salts [N(PiPr2Se)2]I (4) and [N(PiPr2Te)2]I (5). The iodide ...
Understanding selective reduction reactions with heterogeneous Pd and Pt : climbing out of the black box Tuokko, Sakari (University of Jyväskylä, 2016)
An experimental and theoretical study of a heptacoordinated tungsten(VI) complex of a noninnocent phenylenediamine bis(phenolate) ligand Hossain, Md. Kamal; Haukka, Matti; Hänninen, Mikko M.; Lisensky, George C.; Paturi, Petriina; Nordlander, Ebbe; Lehtonen, Ari (Elsevier BV, 2018)[W(N2O2)(HN2O2)] (H4N2O2 = N,N′-bis(3,5-di-tert-butyl-2-hydroxyphenyl)-1,2-phenylenediamine) with a noninnocent ligand was formed by reaction of the alkoxide precursor [W(eg)3] (eg = the 1,2-ethanediolate dianion) with two ...