Homo- and heteroleptic 8-quinaldinolate complexes from elevated-temperature rearrangements

Deacon, Glen B.;Junk, Peter C.;Turner, David R.;Walker, Julia A.

Abstract

Three new zinc 8-quinaldinolate complexes have been obtained from rearrangement reactions at elevated temperatures including the first homoleptic zinc 8-quinaldinolate complex. The homoleptic, trinuclear complex [Zn₃(MQ)₆] (1) (MQ = 8-quinaldinolate) was obtained by the recrystallisation of amorphous Zn(MQ)₂ from a 1,2,4,5-tetramethylbenzene flux at 270 degrees C. The heteroleptic complexes [Zn₄Cl₄(MQ)₄] (2) and [Zn₄Cl₂(MQ)₆] (3) were simultaneously obtained by the reaction between Zn(MQ)₂ and anhydrous ZnCl₂ under the same conditions. All complexes contain quinaldinolate ligands in a mixed chelating-bridging coordination mode. The homoleptic complex adopts a V-shaped geometry whereas the heteroleptic complexes adopt closely related cyclic structures.

Journal

Australian Journal of Chemistry

Publication Name

N/A

Volume

ISBN/ISSN

1445-0038

Edition

N/A

Issue

Pages Count

Location

N/A

Publisher

CSIRO Publishing

Publisher Url

N/A

Publisher Location

N/A

Publish Date

N/A

Url

N/A

Date

N/A

EISSN

N/A

DOI

10.1071/CH13185