Numéro
J. Phys. IV France
Volume 05, Numéro C5, Juin 1995
Proceedings of the Tenth European Conference on Chemical Vapour Deposition
Page(s) C5-373 - C5-377
DOI https://doi.org/10.1051/jphyscol:1995544
Proceedings of the Tenth European Conference on Chemical Vapour Deposition

J. Phys. IV France 05 (1995) C5-373-C5-377

DOI: 10.1051/jphyscol:1995544

Barium Diketonates as Precursors for HTSC Thin Films : Structure and Properties

A. Drozdov and S. Troyanov

Moscow State University, Department of Chemistry, 119899 Moscow, Vorobjevy Gory, Russia


Abstract
Homoligand and mixed ligand barium diketonate complexes have been synthesized and characterized by X-ray structure determination. Homoligand complexes with dipivaloylmethane hexafluoroacetone and pivaloyltrifluoroacetone have oligigomeric or polymeric structure. The mixed complexes with additional anionic ligands (Cl- OH-, Piv-) form pentanuclear complexes. The structures of the mixed ligand complexes with Lewis bases contain either mono or dinuclear chelates. Deoligomerization is accompanied by a decrease of the sublimation temperature and improves a storage stability of barium complexes used in MOCVD process for production of HTSC films.



© EDP Sciences 1995