SYNTHESIS, CHARACTERIZATION AND THERMAL-BEHAVIOR OF CALCIUM AND STRONTIUM 2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATE COMPLEXES - CRYSTAL-STRUCTURE OF R(MU,ETA(2)-THD)(ETA(2)-THD)(ETA(2)-MEOC2H4OH)](2)
H. Guillon et al., SYNTHESIS, CHARACTERIZATION AND THERMAL-BEHAVIOR OF CALCIUM AND STRONTIUM 2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATE COMPLEXES - CRYSTAL-STRUCTURE OF R(MU,ETA(2)-THD)(ETA(2)-THD)(ETA(2)-MEOC2H4OH)](2), Silicon, germanium, tin and lead compounds, 20(10), 1997, pp. 633-639
The reaction between oligomeric alkaline earth metal tetramethylheptan
edionates [M(thd)(2)](m) (M = Sr, Ca) with 2-methoxyethanol, yielded t
he adducts [M(thd)(2)(MeOC2H4OH)](m)[M = Sr (1), Ca (2)] which were ch
aracterized by elemental analysis, IR and H-1 NMR spectroscopy. Compou
nd 1 has been characterized by single crystal X-Ray diffraction as a d
imer Sr(mu,h(2)-thd)(eta(2)-thd)(eta(2)-MeOC2H4OH)](2). The Sr-O bond
lengths spread over the range 2.390(7)-2.755(8) Angstrom, the order of
variation being Sr-O(thd) < Sr-O(OH)< Sr-O(OCH3). Thermogravimetric a
nalysis data and volatility are discussed for both compounds.