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Titolo:
Ancillary ligand effect on the properties of "Mg(thd)(2)" and crystal structures of [Mg(thd)(2)(ethylenediamine)](2), [Mg(thd)(2)(tmeda)], and [Mg(thd)(2)(trien)]
Autore:
Hatanpaa, T; Kansikas, J; Mutikainen, I; Leskela, M;
Indirizzi:
Univ Helsinki, Dept Chem, Inorgan Chem Lab, FIN-00014 Helsinki, Finland Univ Helsinki Helsinki Finland FIN-00014 ab, FIN-00014 Helsinki, Finland
Titolo Testata:
INORGANIC CHEMISTRY
fascicolo: 4, volume: 40, anno: 2001,
pagine: 788 - 794
SICI:
0020-1669(20010212)40:4<788:ALEOTP>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
BETA-KETOIMINATE COMPLEXES; ATOMIC LAYER EPITAXY; APPENDED POLYETHER LARIATS; THIN-FILMS; BARIUM MOCVD; PRECURSORS; DEPOSITION; OXIDE; CVD;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Hatanpaa, T Univ Helsinki, Dept Chem, Inorgan Chem Lab, POB 55, FIN-00014 Helsinki, Finland Univ Helsinki POB 55 Helsinki Finland FIN-00014 inki, Finland
Citazione:
T. Hatanpaa et al., "Ancillary ligand effect on the properties of "Mg(thd)(2)" and crystal structures of [Mg(thd)(2)(ethylenediamine)](2), [Mg(thd)(2)(tmeda)], and [Mg(thd)(2)(trien)]", INORG CHEM, 40(4), 2001, pp. 788-794

Abstract

Complexes [Mg(thd)(2)(A)] (Hthd = 2,2,6,6-tetramethyl-3,5-heptanedione; A = ethylenediamine, en (2); N,N'-dimethylethylenediamine, dmeda (3): N,N'-diethylethylenediamine, deeda (4); N,N,N',N'-tetramethylethylenediamine, tmeda (5); diethylenetriamine, dien (6); triethylenetetra-amine, trien (7); 1,2-ethanediol (8)) and [Mg(thd)(2)(EtOH)](2)(1,3-propanediol) (9) were prepared and characterized by NMR spectroscopy, mass spectrometry, and thermal analysis. Crystal structures of compounds 2, 5, and 7 are presented. In all structures, Mg exhibits distorted six-coordination, with four shorter distances between Mg and keto-oxygens and two longer distances between Mg and nitrogen atoms (2, 5, 7). The structure of 2 consists of two monomeric complexes which form an asymmetric unit. The structure of 7 is similar to 2. but the trien molecule has coordinated through one terminal and one vicinal N atom to Mg. All complexes containing amines evaporated almost completely, butthe complex 8, which contained 1,2-ethanediol, was thermally unstable and decomposed when heated. At temperatures below the dissociation temperature,all adducts of diamines appeared to evaporate intact.

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Documento generato il 27/09/20 alle ore 13:16:05