Multiple Bonds between Main Group Elements and Transition Metals. 153.1 Rhenium(V) Oxo Complexes with Tetradentate Schiff Bases: Structural Considerations

Wolfgang A. Herrmann, Monika U. Rauch, Georg R.J. Artus

Research output: Contribution to journalArticlepeer-review

97 Scopus citations

Abstract

The reactions of [NBu4][ReOCl4] with potentially tetradentate bis(salicylidene)amine ligands (sal2en = H2L) have been investigated. The bimetallic rhenium(V) complex [NBu4]2[Re2O2Cl6(L)] (2a) is formed if the ligand precursor H2L contains two CH2 units bridging the imino groups of the sal2en fragments, while monomeric octahedral rhenium(V) compounds [ReOCl(L)] (2b-d) are formed if three carbon atoms form the bridge. In contrast to similar technetium compounds where a symmetrical equatorial arrangement is observed, the rhenium complex exhibits an asymmetric nonplanar coordination of the ligand. The crystal structures of mono- and bimetallic derivatives have been determined. Crystal data are as follows: 2a, monoclinic, space group P21/c, a = 23.003-(3) Å, b = 13.385(1) Å, c = 24.344(4) Å, β= 93.88(7)°, R = 0.045 for 7974 reflections; 2b, monoclinic, space group P21/n, a = 12.094(2) Å, b = 15.410(2) Å, c = 14.857(3) A, β= 108.49(2)̊, R = 0.034 for 3415 reflections; 2c, monoclinic, space group P21/n, a = 10.748(1) Å, b = 16.695(2) Å, c = 10.893(2) Å, β= 105.61(1)°, R = 0.028 for 2736 reflections.

Original languageEnglish
Pages (from-to)1988-1991
Number of pages4
JournalInorganic Chemistry
Volume35
Issue number7
DOIs
StatePublished - 1996

Fingerprint

Dive into the research topics of 'Multiple Bonds between Main Group Elements and Transition Metals. 153.1 Rhenium(V) Oxo Complexes with Tetradentate Schiff Bases: Structural Considerations'. Together they form a unique fingerprint.

Cite this